PHD finger found in inhibitor of growth protein 3 (ING3) and similar proteins; ING3, also termed p47ING3, is one member of the inhibitor of growth (ING) family of type II tumor suppressors. It is ubiquitously expressed and has been implicated in transcription modulation, cell cycle control, and the induction of apoptosis. It is an important subunit of human NuA4 histone acetyltransferase complex, which regulates the acetylation of histones H2A and H4. Moreover, ING3 promotes ultraviolet (UV)-induced apoptosis through the Fas/caspase-8-dependent pathway in melanoma cells. It physically interacts with subunits of E3 ligase Skp1-Cullin-F-boxprotein complex (SCF complex) and is degraded by the SCF (F-box protein S-phase kinase-associated protein 2, Skp2)-mediated ubiquitin-proteasome system. It also acts as a suppression factor during tumorigenesis and progression of hepatocellular carcinoma (HCC). ING3 contains an N-terminal ING domain and a C-terminal plant homeodomain (PHD) finger.

                        10        20        30        40
                ....*....|....*....|....*....|....*....|....*
gi 24643083 630 YCTCNQVSYGDMVACDNDACPYEWFHYPCVGITQPPKGKWYCPKC 674
Cdd:cd15585   1 YCICNQVSYGEMVGCDNDDCPIEWFHYGCVGLTEAPKGKWYCPQC 45

PHD finger found in inhibitor of growth protein 3 (ING3) and similar proteins; ING3, also termed p47ING3, is one member of the inhibitor of growth (ING) family of type II tumor suppressors. It is ubiquitously expressed and has been implicated in transcription modulation, cell cycle control, and the induction of apoptosis. It is an important subunit of human NuA4 histone acetyltransferase complex, which regulates the acetylation of histones H2A and H4. Moreover, ING3 promotes ultraviolet (UV)-induced apoptosis through the Fas/caspase-8-dependent pathway in melanoma cells. It physically interacts with subunits of E3 ligase Skp1-Cullin-F-boxprotein complex (SCF complex) and is degraded by the SCF (F-box protein S-phase kinase-associated protein 2, Skp2)-mediated ubiquitin-proteasome system. It also acts as a suppression factor during tumorigenesis and progression of hepatocellular carcinoma (HCC). ING3 contains an N-terminal ING domain and a C-terminal plant homeodomain (PHD) finger.

                        10        20        30        40
                ....*....|....*....|....*....|....*....|....*
gi 24643083 630 YCTCNQVSYGDMVACDNDACPYEWFHYPCVGITQPPKGKWYCPKC 674
Cdd:cd15585   1 YCICNQVSYGEMVGCDNDDCPIEWFHYGCVGLTEAPKGKWYCPQC 45

Inhibitor of growth (ING) domain of inhibitor of growth protein 3 (ING3), Yng2p and similar proteins; ING3, also termed p47ING3, is a member of the inhibitor of growth (ING) family of type II tumor suppressors. It is ubiquitously expressed and has been implicated in transcription modulation, cell cycle control, and the induction of apoptosis. It is an important subunit of human NuA4 histone acetyltransferase complex, which regulates the acetylation of histones H2A and H4. Moreover, ING3 promotes ultraviolet (UV)-induced apoptosis through the Fas/caspase-8-dependent pathway in melanoma cells. It physically interacts with subunits of E3 ligase Skp1-Cullin-F-boxprotein complex (SCF complex) and is degraded by the SCF (F-box protein S-phase kinase-associated protein 2, Skp2)-mediated ubiquitin-proteasome system. It also acts as a suppression factor during tumorigenesis and progression of hepatocellular carcinoma (HCC). Yeast chromatin modification-related protein Yng2p, also termed ESA1-associated factor 4 or ING1 homolog 2, is a subunit of the NuA4 histone acetyltransferase (HAT) complex. It plays a critical role in intra-S-phase DNA damage response. Members of this family contain an N-terminal leucine zipper-like (LZL) motif-containing ING domain, and a well-characterized C-terminal plant homeodomain (PHD)-type zinc-finger domain.

                        10        20        30        40        50        60        70        80
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 24643083  11 IEHLPQELRDRFTEMRELDLAVQNNMDSLDKKAHMFFKQCKRD--ELQHESMDTEFHSLRGEYFKVMEDADEKVAIATQI 88
Cdd:cd16858   1 LENLPSELRHLLTEIREKDLQVQELLDRIQQRDAKLFKHIKKNgsLTPNPKEEELYEKIREDYDKALELADEKVELANRL 80

                        90
                ....*....|..
gi 24643083  89 HELVERYLRRLD 100
Cdd:cd16858  81 LDLVDRHLRRLD 92

PHD-finger; PHD folds into an interleaved type of Zn-finger chelating 2 Zn ions in a similar manner to that of the RING and FYVE domains. Several PHD fingers have been identified as binding modules of methylated histone H3.

                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|....
gi 24643083   630 YCT-CNQVSY-GDMVACDNdaCPyEWFHYPCVGIT----QPPKGKWYCPKCTAS 677
Cdd:pfam00628   1 YCAvCGKSDDgGELVQCDG--CD-DWFHLACLGPPldpaEIPSGEWLCPECKPK 51

PHD finger found in inhibitor of growth protein 3 (ING3) and similar proteins; ING3, also termed p47ING3, is one member of the inhibitor of growth (ING) family of type II tumor suppressors. It is ubiquitously expressed and has been implicated in transcription modulation, cell cycle control, and the induction of apoptosis. It is an important subunit of human NuA4 histone acetyltransferase complex, which regulates the acetylation of histones H2A and H4. Moreover, ING3 promotes ultraviolet (UV)-induced apoptosis through the Fas/caspase-8-dependent pathway in melanoma cells. It physically interacts with subunits of E3 ligase Skp1-Cullin-F-boxprotein complex (SCF complex) and is degraded by the SCF (F-box protein S-phase kinase-associated protein 2, Skp2)-mediated ubiquitin-proteasome system. It also acts as a suppression factor during tumorigenesis and progression of hepatocellular carcinoma (HCC). ING3 contains an N-terminal ING domain and a C-terminal plant homeodomain (PHD) finger.

                        10        20        30        40
                ....*....|....*....|....*....|....*....|....*
gi 24643083 630 YCTCNQVSYGDMVACDNDACPYEWFHYPCVGITQPPKGKWYCPKC 674
Cdd:cd15585   1 YCICNQVSYGEMVGCDNDDCPIEWFHYGCVGLTEAPKGKWYCPQC 45

Chromatin remodeling protein, contains PhD zinc finger [Chromatin structure and dynamics];

                        10        20        30        40        50        60        70        80
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 24643083 594 PTTTVTP-----GSSLTIGENGLVVEQTNEGEWSYDPNEPRYCTCNQVSYGDMVACDNDACPYEWFHYPCVGITQPPKGK 668
Cdd:COG5034 182 SFTLESPsvpdtATRVKEGNNGGSTKSRGVSSEDNSEGEELYCFCQQVSYGQMVACDNANCKREWFHLECVGLKEPPKGK 261

                ....*.
gi 24643083 669 WYCPKC 674
Cdd:COG5034 262 WYCPEC 267

PHD finger found in yeast orthologs of ING tumor suppressor family; The yeast orthologs of the plant homeodomain (PHD) finger-containing ING tumor suppressor family consists of chromatin modification-related protein YNG1 (Yng1p), YNG2 (Yng2p), and transcriptional regulatory protein PHO23 (Pho23p). Yng1p, also termed ING1 homolog 1, is one of the components of the NuA3 histone acetyltransferase (HAT) complex. Its PHD finger binding to H3 Trimethylated at K4 (H3K4me3) promotes NuA3 H3 HAT activity at K14 of H3 on chromatin. Yng2p, also termed ESA1-associated factor 4, or ING1 homolog 2, is a subunit of the NuA4 HAT complex. It plays a critical role in intra-S-phase DNA damage response. Pho23p is part of the Rpd3/Sin3 histone deacetylase (HDAC) complex. It is required for the normal function of Rpd3 in the silencing of rDNA, telomeric, and mating-type loci. Yng1p and Pho23p inhibit p53-dependent transcription. In contrast, Yng2p has the opposite effect. All family members contain an N-terminal ING histone-binding domain and a C-terminal PHD finger.

                        10        20        30        40
                ....*....|....*....|....*....|....*....|....*..
gi 24643083 630 YCTCNQVSYGDMVACDNDACPYEWFHYPCVGITQPPKGKWYCPKCTA 676
Cdd:cd15587   1 YCYCRRVSFGEMVACDNPDCKIEWFHFECVGLTETPKGKWYCSDCKV 47

PHD finger found in inhibitor of growth protein 4 (ING4) and 5 (ING5); ING4, also termed p29ING4, and ING5, also termed p28ING5, belong to the inhibitor of growth (ING) family of type II tumor suppressors. ING4 acts as an E3 ubiquitin ligase to induce ubiquitination of the p65 subunit of NF-kappaB and inhibit the transactivation of NF-kappaB target genes. It also induces apoptosis through a p53 dependent pathway, including increasing p53 acetylation, inhibiting Mdm2-mediated degradation of p53 and enhancing the expression of p53 responsive genes both at the transcriptional and post-translational levels. Moreover, ING4 can inhibit the translation of proto-oncogene MYC by interacting with AUF1. It also regulates other transcription factors, such as hypoxia-inducible factor (HIF). ING5 is a Tip60 cofactor that acetylates p53 at K120 and subsequently activates the expression of p53-dependent apoptotic genes in response to DNA damage. Aberrant ING5 expression may contribute to pathogenesis, growth, and invasion of gastric carcinomas and colorectal cancer. ING5 can physically interact with p300 and p53 in vivo, and its overexpression induces apoptosis in colorectal cancer cells. It also associates with cyclin A1 (INCA1) and functions as a growth suppressor with suppressed expression in Acute Myeloid Leukemia (AML). Moreover, ING5 translocation from the nucleus to the cytoplasm might be a critical event for carcinogenesis and tumor progression in human head and neck squamous cell carcinoma. Both ING4 and ING5 contain an N-terminal ING histone-binding domain and a C-terminal plant homeodomain (PHD) finger. They associate with histone acetyltransferase (HAT) complexes containing MOZ (monocytic leukemia zinc finger protein)/MORF (MOZ-related factor) and HBO1, and further direct the MOZ/MORF and HBO1 complexes to chromatin.

                        10        20        30        40
                ....*....|....*....|....*....|....*....|....*
gi 24643083 630 YCTCNQVSYGDMVACDNDACPYEWFHYPCVGITQPPKGKWYCPKC 674
Cdd:cd15586   1 YCLCHQVSYGEMIGCDNPDCPIEWFHFACVGLTTKPKGKWFCPRC 45

PHD finger found in inhibitor of growth protein 1 (ING1); ING1 is an epigenetic regulator and a type II tumor suppressor that impacts cell growth, aging, apoptosis, and DNA repair, by affecting chromatin conformation and gene expression. It acts as a reader of the active chromatin mark, the trimethylation of histone H3 lysine 4 (H3K4me3). It binds and directs Growth arrest and DNA damage inducible protein 45 a (Gadd45a) to target sites, thus linking the histone code with DNA demethylation. It interacts with the proliferating cell nuclear antigen (PCNA) via the PCNA-interacting protein (PIP) domain in a UV-inducible manner. It also interacts with a PCNA-interacting protein, p15 (PAF). Moreover, ING1 associates with members of the 14-3-3 family, which is necessary for the cytoplasmic relocalization. Endogenous ING1 protein specifically interacts with the pro-apoptotic BCL2 family member BAX and colocalizes with BAX in a UV-inducible manner. It stabilizes the p53 tumor suppressor by inhibiting polyubiquitination of multi-monoubiquitinated forms via interaction with and colocalization of the herpesvirus-associated ubiquitin-specific protease (HAUSP)-deubiquitinase with p53. It is also involved in trichostatin A-induced apoptosis and caspase 3 signaling in p53-deficient glioblastoma cells. In addition, tyrosine kinase Src can bind phosphorylate ING1 and further regulates its activity. ING1 contains an N-terminal ING domain and a C-terminal plant homeodomain (PHD) finger.

                        10        20        30        40
                ....*....|....*....|....*....|....*....|....*
gi 24643083 630 YCTCNQVSYGDMVACDNDACPYEWFHYPCVGITQPPKGKWYCPKC 674
Cdd:cd15682   2 YCLCNQVSYGEMIGCDNDECPIEWFHFSCVGLNHKPKGKWYCPKC 46

PHD finger found in inhibitor of growth protein 4 (ING4); ING4, also termed p29ING4, is one member of the inhibitor of growth (ING) family of type II tumor suppressors. It acts as an E3 ubiquitin ligase to induce ubiquitination of the p65 subunit of NF-kappaB and inhibit the transactivation of NF-kappaB target genes. It also induces apoptosis through a p53 dependent pathway, including increasing p53 acetylation, inhibiting Mdm2-mediated degradation of p53 and enhancing the expression of p53 responsive genes both at the transcriptional and post-translational levels. Moreover, ING4 can inhibit the translation of proto-oncogene MYC by interacting with AUF1. It also regulates other transcription factors, such as hypoxia-inducible factor (HIF). In addition, ING4 associates with histone acetyltransferase (HAT) complexes containing MOZ (monocytic leukemia zinc finger protein)/MORF (MOZ-related factor) and HBO1, and further directs the MOZ/MORF and HBO1 complexes to chromatin. ING4 contains an N-terminal ING histone-binding domain and a C-terminal plant homeodomain (PHD) finger.

                        10        20        30        40
                ....*....|....*....|....*....|....*....|....*.
gi 24643083 630 YCTCNQVSYGDMVACDNDACPYEWFHYPCVGITQPPKGKWYCPKCT 675
Cdd:cd15684   2 YCLCHQVSYGEMIGCDNPDCSIEWFHFACVGLTTKPRGKWFCPRCS 47

Inhibitor of growth (ING) domain of inhibitor of growth protein ING1, ING2, and similar proteins; ING1 is an epigenetic regulator and a type II tumor suppressor that impacts cell growth, aging, apoptosis, and DNA repair, by affecting chromatin conformation and gene expression. It acts as a reader of the active chromatin mark, the trimethylation of histone H3 lysine 4 (H3K4me3). It binds and directs growth arrest and DNA damage inducible protein 45 a (Gadd45a) to target sites, thus linking the histone code with DNA demethylation. It interacts with the proliferating cell nuclear antigen (PCNA) via the PCNA-interacting protein (PIP) domain in a UV-inducible manner. It also interacts with a PCNA-interacting protein, p15 (PAF). Moreover, ING1 associates with members of the 14-3-3 family, which is necessary for cytoplasmic relocalization. Endogenous ING1 protein specifically interacts with the pro-apoptotic BCL2 family member BAX and colocalizes with BAX in a UV-inducible manner. It stabilizes the p53 tumor suppressor by inhibiting polyubiquitination of multi-monoubiquitinated forms via interaction with and colocalization of the herpesvirus-associated ubiquitin-specific protease (HAUSP)-deubiquitinase with p53. It is also involved in trichostatin A-induced apoptosis and caspase 3 signaling in p53-deficient glioblastoma cells. In addition, tyrosine kinase Src can bind and phosphorylate ING1 and further regulates its activity. ING2, also termed inhibitor of growth 1-like protein (ING1Lp), or p32, or p33ING2, is a core component of a multi-factor chromatin-modifying complex containing the transcriptional co-repressor SIN3A and histone deacetylase 1 (HDAC1). It has been implicated in the control of cell cycle, in genome stability, and in muscle differentiation. ING2 independently interacts with H3K4me3 (Histone H3 trimethylated on lysine 4) and PtdIns(5)P, and modulates crosstalk between lysine methylation and lysine acetylation on histone proteins through association with chromatin in the presence of DNA damage. It collaborates with SnoN to mediate transforming growth factor (TGF)-beta-induced Smad-dependent transcription and cellular responses. It is upregulated in colon cancer and increases invasion by enhanced MMP13 expression. It also acts as a cofactor of p300 for p53 acetylation and plays a positive regulatory role during p53-mediated replicative senescence. Both ING1 and ING2 contain an N-terminal leucine zipper-like (LZL) motif-containing ING domain, and a well-characterized C-terminal plant homeodomain (PHD)-type zinc-finger domain.

                        10        20        30        40        50        60        70        80
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 24643083   8 LEMIEHLPQELRDRFTEMRELDLAVQNNMDSLDKKAHMFFKQCKRDELQHESMDtEFHSLRGeyfKVMEDADEKVAIATQ 87
Cdd:cd16857   1 LDCVENLPGDVQRNLSLMRELDKRYQEILNELEELYEEYLREDDESHAKKRLLA-RIQKLLI---RSQELGDEKLQIVSQ 76

                        90
                ....*....|...
gi 24643083  88 IHELVERYLRRLD 100
Cdd:cd16857  77 ILDLIENRNRQLE 89

Inhibitor of growth (ING) domain of inhibitor of growth protein 5 (ING5); ING5, also termed p28ING5, is a member of the inhibitor of growth (ING) family of type II tumor suppressors. It acts as a Tip60 cofactor that acetylates p53 at K120 and subsequently activates the expression of p53-dependent apoptotic genes in response to DNA damage. Aberrant ING5 expression may contribute to pathogenesis, growth, and invasion of gastric carcinomas and colorectal cancer. ING5 can physically interact with p300 and p53 in vivo, and its overexpression induces apoptosis in colorectal cancer cells. It also associates with Inhibitor of cyclin A1 (INCA1) and functions as a growth suppressor with suppressed expression in Acute Myeloid Leukemia (AML). Moreover, ING5 translocation from the nucleus to the cytoplasm might be a critical event for carcinogenesis and tumor progression in human head and neck squamous cell carcinoma. In addition, ING5 associates with histone acetyltransferase (HAT) complexes containing MOZ (monocytic leukemia zinc finger protein)/MORF (MOZ-related factor) and HBO1, and further directs the MOZ/MORF and HBO1 complexes to chromatin. ING5 contains an N-terminal leucine zipper-like (LZL) motif-containing ING domain, and a well-characterized C-terminal plant homeodomain (PHD)-type zinc-finger domain.

                        10        20        30        40        50        60        70        80
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 24643083  11 IEHLPQELRDRFTEMRELDLAVQNNMDSLDKKAHMFFKQCKrdELQHESMDTEFHSLRGEYFKVMEDADEKVAIATQIHE 90
Cdd:cd16863   3 IENLPCELQRNFQLMRDLDQRTEDKKAEIDKLASEYIANVK--NLSPEQRVEHLKKIQSAYSKCKEYSDDKVQLAMQTYE 80

                        90
                ....*....|...
gi 24643083  91 LVERYLRRLDSEL 103
Cdd:cd16863  81 MVDKHIRRLDADL 93

Inhibitor of growth (ING) domain of plant inhibitor of growth proteins; This subfamily is composed of mainly plant inhibitor of growth proteins such as Arabidopsis thaliana ING1 (AtING1 or PHD finger protein ING1) and ING2 (AtING2 or PHD finger protein ING2). They are histone-binding components that specifically recognizes H3 tails trimethylated on 'Lys-4' (H3K4me3), which mark transcription start sites of virtually all active genes. The related mammalian ING proteins act as readers and writers of the histone epigenetic code, affecting DNA damage response, chromatin remodeling, cellular senescence, differentiation, cell cycle regulation, and apoptosis. They may have a general role in mediating the cellular response to genotoxic stress through binding to and regulating the activities of histone acetyltransferase (HAT) and histone deacetylase (HDAC) chromatin remodeling complexes. All ING proteins contain an N-terminal leucine zipper-like (LZL) motif-containing ING domain that binds unmodified H3 tails, and a well-characterized C-terminal plant homeodomain (PHD)-type zinc-finger domain, which binds lysine 4-tri-methylated histone H3 (H3K4me3). Although these two regions can bind histones independently, together they increase the apparent association of the ING domain for the H3 tail.

                        10        20        30        40        50        60        70        80
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 24643083  14 LPQELRDRFTEMRELDLAVQNNMDSLDKKAHMFFKQCKRDELQHESMD-TEFHSLRGEYFKVMED----ADEKVAIATQI 88
Cdd:cd17015   4 LPAELQRNLSLIRDLDERSQALQDQVEQKCERCLEEPSQSSESASSSDdTAAAALREEIESAQKDclqlADEKVALAQQA 83

                        90
                ....*....|....*
gi 24643083  89 HELVERYLRRLDSEL 103
Cdd:cd17015  84 YDLVDGHIQRLDKDL 98

PHD zinc finger; The plant homeodomain (PHD) finger is a C4HC3 zinc-finger-like motif found in nuclear proteins thought to be involved in epigenetics and chromatin-mediated transcriptional regulation. The PHD finger binds two zinc ions using the so-called 'cross-brace' motif and is thus structurally related to the RING finger and the FYVE finger. It is not yet known if PHD fingers have a common molecular function. Several reports suggest that it can function as a protein-protein interacton domain and it was recently demonstrated that the PHD finger of p300 can cooperate with the adjacent BROMO domain in nucleosome binding in vitro. Other reports suggesting that the PHD finger is a ubiquitin ligase have been refuted as these domains were RING fingers misidentified as PHD fingers.

                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|
gi 24643083    630 YCT-CNQV-SYGDMVACDNdaCPyEWFHYPCVGIT---QPPKGKWYCPKC 674
Cdd:smart00249   1 YCSvCGKPdDGGELLQCDG--CD-RWYHQTCLGPPlleEEPDGKWYCPKC 47

PHD finger 5 found in nuclear receptor-binding SET domain-containing (NSD) proteins; The nuclear receptor binding SET domain (NSD) protein is a family of three HMTases, NSD1, NSD2/MMSET/WHSC1, and NSD3/WHSC1L1, that are critical in maintaining chromatin integrity. Reducing NSD activity through specific lysine-HMTase inhibitors appears promising to help suppress cancer growth. NSD proteins have specific mono- and dimethylase activities for H3K36, and they play non-redundant roles during development. NSD1 plays a role in several pathologies, including but not limited to Sotos and Weaver syndromes, acute myeloid leukemia, breast cancer, neuroblastoma, and glioblastoma formation. NSD2 is involved in cancer cell proliferation, survival, and tumor growth, by mediating constitutive NF-kappaB signaling via the cytokine autocrine loop. NSD3 is amplified in human breast cancer cell lines. Moreover, translocation resulting in NUP98 fusion to NSD3 leads to the development of acute myeloid leukemia. NSD proteins contain a catalytic suppressor of variegation, enhancer of zeste and trithorax (SET) domain, two proline-tryptophan-tryptophan-proline (PWWP) domains, five plant homeodomain (PHD) fingers, and an NSD-specific Cys-His rich domain (Cys5HisCysHis). This model corresponds to the fifth PHD finger.

                        10        20        30
                ....*....|....*....|....*....|....*.
gi 24643083 639 GDMVACDNDACP--YewfHYPCVGITQPPKGKWYCP 672
Cdd:cd15568   9 GDLVLCDFKGCPkvY---HLSCLGLEKPPGGKWICP 41

PHD finger 5 found in nuclear SET domain-containing protein 3 (NSD3); NSD3, also termed histone-lysine N-methyltransferase NSD3, or protein whistle, or WHSC1-like 1 isoform 9 with methyltransferase activity to lysine, or Wolf-Hirschhorn syndrome candidate 1-like protein 1 (WHSC1-like protein 1, or WHSC1L1), is a lysine methyltransferase encoded by gene NSD3, which is amplified in human breast cancer cell lines. Moreover, translocation resulting in NUP98 fusion to NSD3 leads to the development of acute myeloid leukemia. NSD3 contains a catalytic suppressor of variegation, enhancer of zeste and trithorax (SET) domain, two proline-tryptophan-tryptophan-prolin motif (PWWP) domains, five plant-homeodomain (PHD) zinc fingers, and an NSD-specific Cys-His rich domain (Cys5HisCysHis). The SET domain is responsible for histone methyltransferase activity. The PWWP and PHD fingers are involved in protein-protein interactions. This model corresponds to the fifth PHD finger.

                        10        20        30
                ....*....|....*....|....*....|....
gi 24643083 639 GDMVACDNDACPyEWFHYPCVGITQPPKGKWYCP 672
Cdd:cd15661   9 GELVMCDKKDCP-KAYHLLCLNLTQPPYGKWECP 41

PHD finger found in Set1 complex component SPP1; Set1C component SPP1, also called COMPASS component Spp1, or Complex proteins associated with set1 protein Spp1, or Suppressor of PRP protein 1, is a component of the COMPASS complex that links histone methylation to initiation of meiotic recombination. It induces double-strand break (DSB) formation by tethering to recombinationally cold regions. SPP1 interacts with H3K4me3 and Mer2, a protein required for DSB formation, to promote recruitment of potential meiotic DSB sites to the chromosomal axis. SPP1 contains a PHD finger, a zinc binding motif.

                        10        20        30        40
                ....*....|....*....|....*....|....*....|....*....
gi 24643083 630 YCTCNQVSYGD-MVACDNdaCPyEWFHYPCVGITQPPKG---KWYCPKC 674
Cdd:cd16039   1 YCICQKPDDGRwMIACDG--CD-EWYHFTCVNIPEADVElvdSFFCPPC 46

Chromatin remodeling protein, contains PhD zinc finger [Chromatin structure and dynamics];

                        10        20        30        40        50        60        70        80
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 24643083   4 LEDYLEMIEHLPQELRDRFTEMRELDLAVQNNMDSLDKKAHMFFKQCKRDEL-QHESMDTEFHSLRGEYFKVMEDADEKV 82
Cdd:COG5034   7 LNDITDHLANVPSETDIRFTELSEIDAKVCDIIKNLRQMISILKKIIDLDSQtYEEVEDGLLKEIRELLLKAIYIQKEKS 86

                        90       100       110       120       130       140       150       160
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 24643083  83 AIATQIHELVERYLRRLDSELFK-----FKCELEADNNgiteilERRSLELDGNSTAATalllsmNQKENRYYGASSANT 157
Cdd:COG5034  87 DLADRAEKLLRRHRKLLDDRIAKrphekVAARIENCHD------AVSRLERNSYSSAAR------RSSGEHRSAASSQGS 154

                       170       180       190       200
                ....*....|....*....|....*....|....*....|
gi 24643083 158 MVNSSTGHATGAATGSSGIALVS--GAAGTGGALSSISTA 195
Cdd:COG5034 155 RHTKLKKRKNIHNLKRRSPELSSkrEVSFTLESPSVPDTA 194

PHD finger 4 found in nuclear receptor-binding SET domain-containing (NSD) proteins; The nuclear receptor binding SET domain (NSD) protein is a family of three HMTases, NSD1, NSD2/MMSET/WHSC1, and NSD3/WHSC1L1, that are critical in maintaining chromatin integrity. Reducing NSD activity through specific lysine-HMTase inhibitors appears promising to help suppress cancer growth. NSD proteins have specific mono- and dimethylase activities for H3K36, and they play non-redundant roles during development. NSD1 plays a role in several pathologies, including but not limited to Sotos and Weaver syndromes, acute myeloid leukemia, breast cancer, neuroblastoma, and glioblastoma formation. NSD2 is involved in cancer cell proliferation, survival, and tumor growth, by mediating constitutive NF-kappaB signaling via the cytokine autocrine loop. NSD3 is amplified in human breast cancer cell lines. Moreover, translocation resulting in NUP98 fusion to NSD3 leads to development of acute myeloid leukemia. NSD proteins contain a catalytic suppressor of variegation, enhancer of zeste and trithorax (SET) domain, two proline-tryptophan-tryptophan-proline (PWWP) domains, five plant homeodomain (PHD) fingers, and an NSD-specific Cys-His rich domain (Cys5HisCysHis). This model corresponds to the fourth PHD finger.

                        10        20        30
                ....*....|....*....|....*....|....*.
gi 24643083 639 GDMVACDNdaCPYEwFHYPCVGITQPPKGKWYCPKC 674
Cdd:cd15567   9 GSLICCES--CPAS-FHPECLGLEPPPEGKFYCEDC 41

PHD finger found in PHD finger protein 3 (PHF3), and death-inducer obliterator variants Dido1, Dido2, and Dido3; PHF3 is a human homolog of yeast protein bypass of Ess1 (Bye1), a nuclear protein with a domain resembling the central domain in the transcription elongation factor TFIIS. It is ubiquitously expressed in normal tissues including brain, but its expression is significantly reduced or lost in glioblastomas. PHF3 contains an N-terminal plant homeodomain (PHD) finger, a central RNA polymerase II (Pol II)-binding TFIIS-like domain (TLD) domain, and a C-terminal Spen paralogue and orthologue C-terminal (SPOC) domain. This family also includes Dido gene encoding three alternative splicing variants (Dido1, 2, and 3), which have been implicated in a number of cellular processes such as apoptosis and chromosomal segregation, particularly in the hematopoietic system. Dido1 is important for maintaining embryonic stem (ES) cells and directly regulates the expression of pluripotency factors. It is the shortest isoform that contains only a highly conserved PHD finger responsible for the binding of histone H3 with a higher affinity for trimethylated lysine4 (H3K4me3). Gene Dido1 is a Bone morphogenetic protein (BMP) target gene and promotes BMP-induced melanoma progression. It also triggers apoptosis after nuclear translocation and caspase upregulation. Dido3 is the largest isoform and is ubiquitously expressed in all human tissues. It is dispensable for ES cell self-renewal and pluripotency, but is involved in the maintenance of stem cell genomic stability and tumorigenesis. Dido3 contains a PHD finger, a transcription elongation factor S-II subunit M (TFSIIM) domain, a SPOC module, and a long C-terminal region (CT) of unknown homology.

                        10        20        30        40        50
                ....*....|....*....|....*....|....*....|....*....|....*
gi 24643083 630 YCTCNQvSYGD--MVACDndaCPYEWFHYPCVGITqPPKGK--------WYCPKC 674
Cdd:cd15552   1 YCICRK-PHNNrfMICCD---RCEEWFHGDCVGIT-EAQGKemeenieeYVCPKC 50

PHD finger 5 found in nuclear receptor-binding SET domain-containing protein 1 (NSD1); NSD1, also termed H3 Lysine-36 and H4 Lysine-20 specific histone-lysine N-methyltransferase, or androgen receptor coactivator 267 kDa protein, or androgen receptor-associated protein of 267 kDa, or H3-K36-HMTase H4-K20-HMTase, or Lysine N-methyltransferase 3B (KMT3B), or NR-binding SET domain-containing protein, is a lysine methyltransferase that preferentially methylates H3 on Lysine36 (H3-K36) and H4 on Lysine20 (H4-K20), which is primarily associated with active transcription. It plays a role in several pathologies, including but not limited to Sotos and Weaver syndromes, acute myeloid leukemia, breast cancer, neuroblastoma and glioblastoma formation. It can alter transcription by interacting with the protein NSD1-interacting zinc finger protein 1 (NIZP1). It also mitigates caspase-1 activation by listeriolysin o (LLO) in macrophages, and requires functional LLO for the regulation of IL-1beta secretion. Moreover, NSD1 regulates RNA polymerase II (RNAP II) recruitment to bone morphogenetic protein 4 (BMP4). NSD1 contains a catalytic suppressor of variegation, enhancer of zeste and trithorax (SET) domain, two proline-tryptophan-tryptophan-proline (PWWP) domains, five plant homeodomain (PHD) fingers, and an NSD-specific Cys-His rich domain (Cys5HisCysHis). The SET domain is responsible for histone methyltransferase activity. The PWWP and PHD fingers are involved in protein-protein interactions. This model corresponds to the fifth PHD finger.

                        10        20        30
                ....*....|....*....|....*....|....
gi 24643083 639 GDMVACDNDACPyEWFHYPCVGITQPPKGKWYCP 672
Cdd:cd15659   9 GQLVSCKKPGCP-KVYHADCLNLTKRPAGKWECP 41

PHD finger 1 found in autoimmune regulator (AIRE); AIRE, also termed autoimmune polyendocrinopathy candidiasis ectodermal dystrophy (APECED) protein, functions as a regulator of gene transcription in the thymus. It is essential for prevention of autoimmunity. AIRE plays a critical role in the induction of central tolerance. It promotes self-tolerance through tissue-specific antigen (TSA) expression. It also acts as an active regulator of chondrocyte differentiation. AIRE contains a homogeneously-staining region (HSR) or caspase-recruitment domain (CARD), a nuclear localization signal (NLS), a SAND (for Sp100, AIRE, nuclear phosphoprotein 41/75 or NucP41/75, and deformed epidermal auto regulatory factor 1 or Deaf1) domain, two plant homeodomain (PHD) fingers, and four LXXLL (where L stands for leucine) motifs. This model corresponds to the first PHD finger that recognizes the unmethylated tail of histone H3 and targets AIRE-dependent genes.

                        10        20        30
                ....*....|....*....|....*....|....*...
gi 24643083 639 GDMVACDndACPyEWFHYPCVG--ITQPPKGKWYCPKC 674
Cdd:cd15539   9 GELLCCD--GCP-RAFHLACLVppLTLIPSGTWRCSSC 43

PHD finger found in protein kinase C-binding protein 1 (PRKCBP1); PRKCBP1, also termed cutaneous T-cell lymphoma-associated antigen se14-3 (CTCL-associated antigen se14-3), or Rack7, or zinc finger MYND domain-containing protein 8 (ZMYND8), is a novel receptor for activated C-kinase (RACK)-like protein that may play an important role in the activation and regulation of PKC-beta I, and the PKC signaling cascade. It also has been identified as a formin homology-2-domain containing protein 1 (FHOD1)-binding protein that may be involved in FHOD1-regulated actin polymerization and transcription. Moreover, PRKCBP1 may function as a REST co-repressor 2 (RCOR2) interacting factor; the RCOR2/ZMYND8 complex which might be involved in the regulation of neural differentiation. PRKCBP1 contains a plant homeodomain (PHD) finger, a bromodomain, and a proline-tryptophan-tryptophan-proline (PWWP) domain.

                        10        20        30
                ....*....|....*....|....*....|....*.
gi 24643083 639 GDMVACDndACPyEWFHYPCVGITQPPKGKWYCPKC 674
Cdd:cd15538   9 GQVLCCS--LCP-RVYHKKCLKLTSEPDEDWVCPEC 41

PHD finger 2 found in class II Chromodomain-Helicase-DNA binding (CHD) proteins; Class II CHD proteins includes chromodomain-helicase-DNA-binding protein CHD3, CHD4, and CHD5, which are nuclear and ubiquitously expressed chromatin remodelling ATPases generally associated with histone deacetylases (HDACs). They are involved in DNA Double Strand Break (DSB) signaling, DSB repair and/or p53-dependent pathways such as apoptosis and senescence, as well as in the maintenance of genomic stability, and/or cancer prevention. They function as subunits of the Nucleosome Remodelling and Deacetylase (NuRD) complex, which is generally associated with gene repression, heterochromatin formation, and overall chromatin compaction. In contrast to the class I CHD enzymes (CHD1 and CHD2), class II CHD proteins lack identifiable DNA-binding domains, but possess a C-terminal coiled-coil region. Moreover, in addition to the tandem chromodomains and a helicase domain, they all harbor tandem plant homeodomain (PHD) zinc fingers involved in the recognition of methylated histone tails. This model corresponds to the second PHD finger.

                        10        20        30        40
                ....*....|....*....|....*....|....*....|....*...
gi 24643083 630 YCT-CNQVsyGDMVACDNdaCPyEWFHYPCVG--ITQPPKGKWYCPKC 674
Cdd:cd15532   1 FCRvCKDG--GELLCCDG--CP-SSYHLHCLNppLAEIPDGDWFCPRC 43

PHD finger 1 found in Saccharomyces cerevisiae transcriptional regulatory protein Rco1 and similar proteins; Rco1 is a component of the Rpd3S histone deacetylase complex that plays an important role at actively transcribed genes. Rco1 contains two plant homeodomain (PHD) fingers, which are required for the methylation of histone H3 lysine 36 (H3K36) nucleosome recognition by Rpd3S. This model corresponds to the first PHD finger.

                        10        20        30        40        50
                ....*....|....*....|....*....|....*....|....*....|
gi 24643083 630 YCT-CNQvsYGDMVACDndACPYEwFHYPCVGI----TQPPKGKWYCPKC 674
Cdd:cd15535   1 FCSaCGG--YGSFLCCD--GCPRS-FHFSCLDPpleeDNLPDDEWFCNEC 45

PHD finger found in Remodeling and spacing factor 1 (Rsf-1); Rsf-1, also termed HBV pX-associated protein 8, or Hepatitis B virus X-associated protein alpha (HBxAPalpha), or p325 subunit of RSF chromatin-remodeling complex, is a novel nuclear protein with histone chaperon function. It is a subunit of an ISWI chromatin remodeling complex, remodeling and spacing factor (RSF), and plays a role in mediating ATPase-dependent chromatin remodeling and conferring tumor aggressiveness in common carcinomas. As an ataxia-telangiectasia mutated (ATM)-dependent chromatin remodeler, Rsf-1 facilitates DNA damage checkpoints and homologous recombination repair. It regulates the mitotic spindle checkpoint and chromosome instability through the association with serine/threonine kinase BubR1 (BubR1) and Hepatitis B virus (HBV) X protein (HBx) in the chromatin fraction during mitosis. It also interacts with cyclin E1 and promotes tumor development. Rsf-1 contains a plant homeodomain (PHD) finger.

                        10        20        30        40
                ....*....|....*....|....*....|....*....|....*...
gi 24643083 631 CTCNQVSYGD-MVACDN-DACpyewFHYPCVG--ITQPPKGKWYCPKC 674
Cdd:cd15543   3 RKCGLSDHPEwILLCDRcDAG----YHTACLRppLMIIPDGNWFCPPC 46

Inhibitor of growth (ING) domain of yeast Pho23p and similar proteins; This family is composed of Saccharomyces cerevisiae transcriptional regulatory protein PHO23 (Pho23p), Schizosaccharomyces pombe chromatin modification-related protein png2 (also called ING1 homolog 2), and similar proteins. Pho23p is part of Rpd3/Sin3 histone deacetylase (HDAC) complex. It is required for the normal function of Rpd3 in the silencing of rDNA, telomeric, and mating-type loci. Pho23p inhibits p53-dependent transcription. The related mammalian ING proteins act as readers and writers of the histone epigenetic code, affecting DNA damage response, chromatin remodeling, cellular senescence, differentiation, cell cycle regulation and apoptosis. They may have a general role in mediating the cellular response to genotoxic stress through binding to and regulating the activities of histone acetyltransferase (HAT) and histone deacetylase (HDAC) chromatin remodeling complexes. All ING proteins contain an N-terminal leucine zipper-like (LZL) motif-containing ING domain that binds unmodified H3 tails, and a well-characterized C-terminal plant homeodomain (PHD)-type zinc-finger domain, binding with lysine 4-tri-methylated histone H3 (H3K4me3). Although these two regions can bind histones independently, together they increase the apparent association of the ING for the H3 tail.

                        10        20        30        40        50        60        70        80
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 24643083  11 IEHLPQELRDRFTEMRELDLAVQNNMDSLDKKAHMFFKQcKRDELQHESMDTEFHSLRGEYFKVMEDADEKVAIATQIHE 90
Cdd:cd17016   1 IEALPLEVMRYFTLLKEVDAKCRNPEPELNDLIDEFLKN-PVEEQDKLERRELLSRLRKKLQEILPSLDEKMHVASDAND 79

                        90
                ....*....|
gi 24643083  91 LVERYLRRLD 100
Cdd:cd17016  80 NLDKQLKRID 89

PHD finger 2 found in Lysine-specific demethylase KDM5A, KDM5B, KDM5C, KDM5D, and similar proteins; The JARID subfamily within the JmjC proteins includes Lysine-specific demethylase KDM5A, KDM5B, KDM5C, KDM5D and a Drosophila homolog protein, little imaginal discs (Lid). KDM5A was originally identified as a retinoblastoma protein (Rb)-binding partner and its inactivation may be important for Rb to promote differentiation. It is involved in transcription through interacting with TBP, p107, nuclear receptors, Myc, Sin3/HDAC, Mad1, RBP-J, CLOCK, and BMAL1. KDM5B has a restricted expression pattern in the testis, ovary, and transiently in the mammary gland of the pregnant female and has been shown to be upregulated in breast cancer, prostate cancer, and lung cancer, suggesting a potential role in tumorigenesis. Both KDM5A and KDM5B function as trimethylated histone H3 lysine 4 (H3K4me3) demethylases. KDM5C is a H3K4 trimethyl-histone demethylase that catalyzes demethylation of H3K4me3 and H3K4me2 to H3K4me1. It plays a role in neuronal survival and dendrite development. KDM5C defects are associated with X-linked mental retardation (XLMR). KDM5D is a male-specific antigen that shows a demethylase activity specific for di- and tri-methylated histone H3K4 (H3K4me3 and H3K4me2), and has a male-specific function as a histone H3K4 demethylase by recruiting a meiosis-regulatory protein, MSH5, to condensed DNA. KDM5D directly interacts with a polycomb-like protein Ring6a/MBLR, and plays a role in regulation of transcriptional initiation through H3K4 demethylation. The family also includes Drosophila melanogaster protein little imaginal discs (Lid) that functions as a JmjC-dependent trimethyl histone H3K4 (H3K4me3) demethylase, which is required for dMyc-induced cell growth. It positively regulates Hox gene expression in S2 cells. Members in this family contain the catalytic JmjC domain, JmjN, the BRIGHT domain, which is an AT-rich interacting domain (ARID), and a Cys5HisCys2 zinc finger, as well as two or three plant homeodomain (PHD) fingers. This model corresponds to the second PHD finger.

                        10        20        30        40        50
                ....*....|....*....|....*....|....*....|....*....|....*.
gi 24643083 630 YCTCNQVSYGDMVACdnDACPyEWFHYPCVG---ITQPPKG--------KWYCPKC 674
Cdd:cd15516   1 ICLCGKALAAGMLQC--ELCQ-DWFHGSCVAvprISSSPRPlawwegdrKFLCPLC 53

PHD finger found in death-inducer obliterator variants Dido1, Dido2, and Dido3; This family includes three alternative splicing variants (Dido1, 2, and 3) encoded by the Dido gene, which have been implicated in a number of cellular processes such as apoptosis and chromosomal segregation, particularly in the hematopoietic system. Dido1, also termed DIO-1, or death-associated transcription factor 1 (DATF-1), is important for maintaining embryonic stem (ES) cells and directly regulates the expression of pluripotency factors. It is the shortest isoform that contains only a highly conserved plant homeodomain (PHD) finger responsible for the binding of histone H3 with a higher affinity for trimethylated lysine 4 (H3K4me3). Gene Dido is a Bonemorphogenetic protein (BMP) target gene, which promotes BMP-induced melanoma progression. It also triggers apoptosis after nuclear translocation and caspase upregulation. Dido3 is the largest isoform ubiquitously expressed in all human tissues. It is dispensable for ES cell self-renewal and pluripotency, but involved in the maintenance of stem cell genomic stability and tumorigenesis. Dido3 contains a PHD finger, a transcription elongation factor S-II subunit M (TFSIIM) domain, aspen paralog and ortholog (SPOC) module, and a long C-terminal region (CT) of unknown homology. Its PHD finger interacts with H3K4me3.

                        10        20        30        40        50
                ....*....|....*....|....*....|....*....|....*....|....
gi 24643083 630 YCTCNQVSYGD-MVACDNdaCPyEWFHYPCVGITQpPKGK--------WYCPKC 674
Cdd:cd15639   5 YCICRQPHNNRfMICCDR--CE-EWFHGDCVGITE-ARGRllerngedYICPNC 54