Bivalent Mical/EHBP Rab binding domain; A variety of different effector proteins interact specifically with GTP-bound Rab proteins and mediate their versatile roles in membrane trafficking, including budding of vesicles from a donor membrane, directed transport through the cell and finally tethering and fusion with a target membrane. The 'bivalent Mical/EHBP Rab binding' (bMERB) domain is a Rab effector domain that is present in proteins of the Mical and EHBP families, both known to act in endosomal trafficking. The bMERB domain displays a preference for Rab8 family proteins (Rab8, 10, 13 and 15) and at least some of the bMERB domains contain two separate binding sites for Rab-proteins, allowing Micals and EHBPs to bind two Rabs simultaneously. The strong similarity between the two binding sites within one bMRB domain strongly suggests an evolutionarily development via duplication of a common ancestor supersecondary structure element. The bMERB domain has a completely alpha-helical fold consisting of a central helix and N- and C-terminal helices folding back on this central helix.

                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 33667117   743 QLQDIERRLDALELRGVELEKRLR-AAEGDDAEDSLMVDWFWLIHEKQLLLRQESELMYKSKAQRLEEQQLDIEGELRRL 821
Cdd:pfam12130   1 ELEEIEERQRELEERGVELEKALRgEMSGDEEEEQLLQEWFKLVNEKNALVRRESELMYLAKEQDLEERQARLEQELREL 80

                          90       100       110       120       130
                  ....*....|....*....|....*....|....*....|....*....|.
gi 33667117   822 MAKPEALKSLQERRREQELLEQYVSTVNDRSDIVDSLDEDRLREQEEDQML 872
Cdd:pfam12130  81 MSKPDWLKTEEDKQREEELLEELVEIVEQRDALVDSLEEDRLREEEEDEEL 131

large tegument protein UL36; Provisional

                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 33667117   243 PAAASASPKLTGLVPRQPGAMGVDSRTSCSPQKAQEANKARPSAWEPAAGNSPARASVPAAPNPAATSATSVHVRSPARP 322
Cdd:PHA03247 2628 PPSPSPAANEPDPHPPPTVPPPERPRDDPAPGRVSRPRRARRLGRAAQASSPPQRPRRRAARPTVGSLTSLADPPPPPPT 2707

                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 33667117   323 SESRLAPTPTEGKVRPRVTNSSPMGWSSAAPCTAAAASHPAVPPSAPDPRPATPQGGGAPRVAAPQTTLSSSSTSAATVD 402
Cdd:PHA03247 2708 PEPAPHALVSATPLPPGPAAARQASPALPAAPAPPAVPAGPATPGGPARPARPPTTAGPPAPAPPAAPAAGPPRRLTRPA 2787

                         170       180       190       200       210       220       230       240
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 33667117   403 PPAWTPSASRTQQARNKFFQTSAVPPGTSLSGRGPTPSLVLSKDSSKEQARNFLKQALSALEEA--GAPAPG------RP 474
Cdd:PHA03247 2788 VASLSESRESLPSPWDPADPPAAVLAPAAALPPAASPAGPLPPPTSAQPTAPPPPPGPPPPSLPlgGSVAPGgdvrrrPP 2867

                         250       260       270       280       290       300       310       320
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 33667117   475 SPATAAVPSSQPKteaPQASPLAKPLQSSSPRVLGLP--SRMEPPAPLSTSSTSQASALPPAGRRNLAESsgvgrvgagS 552
Cdd:PHA03247 2868 SRSPAAKPAAPAR---PPVRRLARPAVSRSTESFALPpdQPERPPQPQAPPPPQPQPQPPPPPQPQPPPP---------P 2935

                         330       340       350       360       370       380       390       400
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 33667117   553 RPKPEAPMAKGKSTtltqdmsTSLQEGQEDGPAGWRANLKPVDRRSPAERTLKPKEPRALAEP-----RAGEAPRKVSGS 627
Cdd:PHA03247 2936 PPRPQPPLAPTTDP-------AGAGEPSGAVPQPWLGALVPGRVAVPRFRVPQPAPSREAPASstpplTGHSLSRVSSWA 3008

                         410       420
                  ....*....|....*....|..
gi 33667117   628 FAGSVHItltpvrpDRTPRPAS 649
Cdd:PHA03247 3009 SSLALHE-------ETDPPPVS 3023

Bivalent Mical/EHBP Rab binding domain; A variety of different effector proteins interact specifically with GTP-bound Rab proteins and mediate their versatile roles in membrane trafficking, including budding of vesicles from a donor membrane, directed transport through the cell and finally tethering and fusion with a target membrane. The 'bivalent Mical/EHBP Rab binding' (bMERB) domain is a Rab effector domain that is present in proteins of the Mical and EHBP families, both known to act in endosomal trafficking. The bMERB domain displays a preference for Rab8 family proteins (Rab8, 10, 13 and 15) and at least some of the bMERB domains contain two separate binding sites for Rab-proteins, allowing Micals and EHBPs to bind two Rabs simultaneously. The strong similarity between the two binding sites within one bMRB domain strongly suggests an evolutionarily development via duplication of a common ancestor supersecondary structure element. The bMERB domain has a completely alpha-helical fold consisting of a central helix and N- and C-terminal helices folding back on this central helix.

                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 33667117   743 QLQDIERRLDALELRGVELEKRLR-AAEGDDAEDSLMVDWFWLIHEKQLLLRQESELMYKSKAQRLEEQQLDIEGELRRL 821
Cdd:pfam12130   1 ELEEIEERQRELEERGVELEKALRgEMSGDEEEEQLLQEWFKLVNEKNALVRRESELMYLAKEQDLEERQARLEQELREL 80

                          90       100       110       120       130
                  ....*....|....*....|....*....|....*....|....*....|.
gi 33667117   822 MAKPEALKSLQERRREQELLEQYVSTVNDRSDIVDSLDEDRLREQEEDQML 872
Cdd:pfam12130  81 MSKPDWLKTEEDKQREEELLEELVEIVEQRDALVDSLEEDRLREEEEDEEL 131

Calponin homology (CH) domain; The CH domain is found in both cytoskeletal proteins and signal transduction proteins. The CH domain is involved in actin binding in some members of the family. However in calponins there is evidence that the CH domain is not involved in its actin binding activity. Most member proteins have from two to four copies of the CH domain, however some proteins such as calponin have only a single copy.

                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 33667117     1 MAAIRALQQWCRQQCEGYRD-VNICNMTTSFRDGLAFCAILHRHRPDLINFSALKK--ENIYENNKLAFRVAEEHLGIP- 76
Cdd:pfam00307   1 LELEKELLRWINSHLAEYGPgVRVTNFTTDLRDGLALCALLNKLAPGLVDKKKLNKseFDKLENINLALDVAEKKLGVPk 80

                          90       100       110
                  ....*....|....*....|....*....|..
gi 33667117    77 ALLDAEDMVAlkvPDRLSILTYVSQYYNYFHG 108
Cdd:pfam00307  81 VLIEPEDLVE---GDNKSVLTYLASLFRRFQA 109

Calponin homology domain; Actin binding domains present in duplicate at the N-termini of spectrin-like proteins (including dystrophin, alpha-actinin). These domains cross-link actin filaments into bundles and networks. A calponin homology domain is predicted in yeasst Cdc24p.

                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 33667117      5 RALQQWCRQQCEGYRDVNICNMTTSFRDGLAFCAILHRHRPDLINFSALKK----ENIYENNKLAFRVAEEHLGIPALLD 80
Cdd:smart00033   1 KTLLRWVNSLLAEYDKPPVTNFSSDLKDGVALCALLNSLSPGLVDKKKVAAslsrFKKIENINLALSFAEKLGGKVVLFE 80

                           90       100
                   ....*....|....*....|..
gi 33667117     81 AEDMVALKvPDRLSILTYVSQY 102
Cdd:smart00033  81 PEDLVEGP-KLILGVIWTLISL 101

Zinc-binding domain present in Lin-11, Isl-1, Mec-3; Zinc-binding domain family. Some LIM domains bind protein partners via tyrosine-containing motifs. LIM domains are found in many key regulators of developmental pathways.

                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|....*
gi 33667117    188 CGVCGKHVHLVQRHL-ADGRLYHRSCFRCKQCSCTLHSGAYKATGepGTFVCTSH 241
Cdd:smart00132   2 CAGCGKPIYGTERVLrALGKVWHPECFKCATCGKPLSGDTFFEKD--GKLYCKDC 54

chromosome segregation protein SMC, primarily archaeal type; SMC (structural maintenance of chromosomes) proteins bind DNA and act in organizing and segregating chromosomes for partition. SMC proteins are found in bacteria, archaea, and eukaryotes. It is found in a single copy and is homodimeric in prokaryotes, but six paralogs (excluded from this family) are found in eukarotes, where SMC proteins are heterodimeric. This family represents the SMC protein of archaea and a few bacteria (Aquifex, Synechocystis, etc); the SMC of other bacteria is described by TIGR02168. The N- and C-terminal domains of this protein are well conserved, but the central hinge region is skewed in composition and highly divergent. [Cellular processes, Cell division, DNA metabolism, Chromosome-associated proteins]

                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 33667117    738 EEIQRQLQDIERRLDALELRGVELEKRLRAAEGDDAEDSLMVDwfWLIHEKQLLLRQE-------------SELMYKSKA 804
Cdd:TIGR02169  240 EAIERQLASLEEELEKLTEEISELEKRLEEIEQLLEELNKKIK--DLGEEEQLRVKEKigeleaeiaslerSIAEKEREL 317

                           90       100       110       120       130       140       150       160
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 33667117    805 QRLEEQQLDIEGELRRLMAKPEAL-KSLQERRREQELLEQYVSTVNDRsdivdsLDEDRLREQEEDQMLRDMIEKLGLQR 883
Cdd:TIGR02169  318 EDAEERLAKLEAEIDKLLAEIEELeREIEEERKRRDKLTEEYAELKEE------LEDLRAELEEVDKEFAETRDELKDYR 391

                   ..
gi 33667117    884 KK 885
Cdd:TIGR02169  392 EK 393

LIM domain; This family represents two copies of the LIM structural domain.

                          10        20        30        40
                  ....*....|....*....|....*....|....*....|...
gi 33667117   188 CGVCGKHV---HLVQrhlADGRLYHRSCFRCKQCSCTLHSGAY 227
Cdd:pfam00412   1 CAGCNRPIydrELVR---ALGKVWHPECFRCAVCGKPLTTGDF 40

DNA double-strand break repair ATPase Rad50;

                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 33667117  738 EEIQRQLQDIERRLDALELRGVELEKRLRAAEGDDAEDSLMVDWFWLIHEKQLLLRQESELM--YKSKAQRLE------E 809
Cdd:PRK03918 241 EELEKELESLEGSKRKLEEKIRELEERIEELKKEIEELEEKVKELKELKEKAEEYIKLSEFYeeYLDELREIEkrlsrlE 320

                         90       100       110       120       130       140       150       160
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 33667117  810 QQLD-IEGELRRLMAKPEALKSLQER----RREQELLEQYVSTVNDRSDIVDSLdeDRLREQEEDQMLRDMIEKLGLQRK 884
Cdd:PRK03918 321 EEINgIEERIKELEEKEERLEELKKKlkelEKRLEELEERHELYEEAKAKKEEL--ERLKKRLTGLTPEKLEKELEELEK 398

                 ...
gi 33667117  885 KSK 887
Cdd:PRK03918 399 AKE 401

calponin homology (CH) domain found in the MICAL-like protein family; The MICAL-L family includes MICAL-L1 and MICAL-L2. MICAL-L1, also called molecule interacting with Rab13 (MIRab13), is a probable lipid-binding protein with higher affinity for phosphatidic acid, a lipid enriched in recycling endosome membranes. It is a tubular endosomal membrane hub that connects Rab35 and Arf6 with Rab8a. It may be involved in a late step of receptor-mediated endocytosis regulating endocytosed-EGF receptor trafficking. Alternatively, it may regulate slow endocytic recycling of endocytosed proteins back to the plasma membrane. MICAL-L1 may indirectly play a role in neurite outgrowth. MICAL-L2, also called junctional Rab13-binding protein (JRAB), or molecule interacting with CasL-like 2, acts as an effector of small Rab GTPases which is involved in junctional complexes assembly through the regulation of cell adhesion molecule transport to the plasma membrane, and actin cytoskeleton reorganization. It regulates the endocytic recycling of occludins, claudins, and E-cadherin to the plasma membrane and may thereby regulate the establishment of tight junctions and adherens junctions. Members of this family contain a single copy of CH domain. CH domains are actin filament (F-actin) binding motifs.

                        10        20        30        40        50        60        70        80
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 33667117   3 AIRALQQWCRQQCEGYRDVNICNMTTSFRDGLAFCAILHRHRPDLINFSALKKENIYENNKLAFRVAEEHLGIPALLDAE 82
Cdd:cd21197   1 KIQALLRWCRRQCEGYPGVNITNLTSSFRDGLAFCAILHRHRPELIDFHSLKKDNWLENNRLAFRVAETSLGIPALLDAE 80

                        90       100
                ....*....|....*....|....*
gi 33667117  83 DMVALKVPDRLSILTYVSQYYNYFH 107
Cdd:cd21197  81 DMVTMHVPDRLSIITYVSQYYNHFR 105

calponin homology (CH) domain found in MICAL-like protein 1; MICAL-like protein 1 (MICAL-L1), also called molecule interacting with Rab13 (MIRab13), is a probable lipid-binding protein with higher affinity for phosphatidic acid, a lipid enriched in recycling endosome membranes. It is a tubular endosomal membrane hub that connects Rab35 and Arf6 with Rab8a. It may be involved in a late step of receptor-mediated endocytosis regulating endocytosed-EGF receptor trafficking. Alternatively, it may regulate slow endocytic recycling of endocytosed proteins back to the plasma membrane. MICAL-L1 may indirectly play a role in neurite outgrowth. It contains a single copy of the CH domain. CH domains are actin filament (F-actin) binding motifs.

                        10        20        30        40        50        60        70        80
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 33667117   5 RALQQWCRQQCEGYRDVNICNMTTSFRDGLAFCAILHRHRPDLINFSALKKENIYENNKLAFRVAEEHLGIPALLDAEDM 84
Cdd:cd21252   3 RALQAWCRRQCEGYPGVEIRDLSSSFRDGLAFCAILHRHRPDLIDFDSLSKDNVYENNRLAFEVAERELGIPALLDPEDM 82

                        90       100
                ....*....|....*....|..
gi 33667117  85 VALKVPDRLSILTYVSQYYNYF 106
Cdd:cd21252  83 VSMKVPDCLSIMTYVSQYYNHF 104

second calponin homology (CH) domain found in the alpha-actinin family; The alpha-actinin (ACTN) family includes alpha-actinin-1, -2, -3, and -4. They are F-actin cross-linking proteins which are thought to anchor actin to a variety of intracellular structures. ACTN1 mutations cause congenital macrothrombocytopenia. ACTN2 mutations are associated with cardiomyopathies, as well as skeletal muscle disorder. ACTN3 is critical in anchoring the myofibrillar actin filaments and plays a key role in muscle contraction. ACTN4 is associated with cell motility and cancer invasion. It is probably involved in vesicular trafficking via its association with the CART complex, which is necessary for efficient transferrin receptor recycling but not for epidermal growth factor receptor (EGFR) degradation. Members of this family contain two copies of the CH domain. This model corresponds to the second CH domain. CH domains are actin filament (F-actin) binding motifs.

                        10        20        30        40        50        60        70        80
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 33667117   1 MAAIRALQQWCRQQCEGYRDVNICNMTTSFRDGLAFCAILHRHRPDLINFSALKKENIYENNKLAFRVAEEHLGIPALLD 80
Cdd:cd21216   9 LSAKEGLLLWCQRKTAPYKNVNVQNFHTSWKDGLAFCALIHRHRPDLLDYDKLRKDDPRENLNLAFDVAEKHLDIPKMLD 88

                        90       100
                ....*....|....*....|....*..
gi 33667117  81 AEDMVALKVPDRLSILTYVSQYYNYFH 107
Cdd:cd21216  89 AEDIVNTPRPDERSVMTYVSCYYHAFA 115

second calponin homology (CH) domain found in the beta-I spectrin-like subfamily; The beta-I spectrin-like family includes beta-I, -II, -III and -IV spectrins. Spectrin is an actin crosslinking and molecular scaffold protein that links the plasma membrane to the actin cytoskeleton, and functions in the determination of cell shape, arrangement of transmembrane proteins, and organization of organelles. It is composed of two antiparallel dimers of alpha- and beta- subunits. Beta-I spectrin, also called spectrin beta chain, erythrocytic (SPTB), may be involved in anaemia pathogenesis. Beta-II spectrin, also called spectrin beta chain, non-erythrocytic 1 (SPTBN1), or fodrin beta chain, is a component of fodrin, which is the general spectrin-like protein that seems to be involved in secretion. Fodrin interacts with calmodulin in a calcium-dependent manner and is thus a candidate for the calcium-dependent movement of the cytoskeleton at the membrane. Beta-III spectrin, also called spectrin beta chain, non-erythrocytic 2 (SPTBN2), or spinocerebellar ataxia 5 protein (SCA5), may play a crucial role as a longer actin-membrane cross-linker or fulfill the need for greater extensible flexibility than can be provided by the other smaller conventional spectrins. Beta-IV spectrin is also called spectrin, non-erythroid beta chain 3 (SPTBN3) or spectrin beta chain, non-erythrocytic 4 (SPTBN4). Its mutation associates with congenital myopathy, neuropathy, and central deafness. Members of this subfamily contain two copies of the CH domain. This model corresponds to the second CH domain. CH domains are actin filament (F-actin) binding motifs.

                        10        20        30        40        50        60        70        80
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 33667117   6 ALQQWCRQQCEGYRDVNICNMTTSFRDGLAFCAILHRHRPDLINFSALKKENIYENNKLAFRVAEEHLGIPALLDAEDmV 85
Cdd:cd21248   6 ALLLWCQMKTAGYPNVNVRNFTTSWRDGLAFNALIHKHRPDLIDYDKLSKSNALYNLQNAFNVAEQKLGLTKLLDPED-V 84

                        90       100
                ....*....|....*....|.
gi 33667117  86 ALKVPDRLSILTYVSQYYNYF 106
Cdd:cd21248  85 NVEQPDEKSIITYVVTYYHYF 105

This domain belongs to the LIM domain family which are found on Mical (molecule interacting with CasL) like proteins; The LIM domain on proteins of unknown function: This domain belongs to the LIM domain family which are found on Mical (molecule interacting with CasL) like proteins. Known members of the Mical-like family includes single LIM domain containing proteins, Mical (molecule interacting with CasL), pollen specific protein SF3, Eplin, xin actin-binding repeat-containing protein 2 (XIRP2), and Ltd-1. The members of this family function mainly at the cytoskeleton and focal adhesions. They interact with transcription factors or other signaling molecules to play roles in muscle development, neuronal differentiation, cell growth, and mobility. As in other LIM domains, this domain family is 50-60 amino acids in size and shares two characteristic zinc finger motifs. The two zinc fingers contain eight conserved residues, mostly cysteines and histidines, which coordinately bond to two zinc atoms. LIM domains function as adaptors or scaffolds to support the assembly of multimeric protein.

                        10        20        30        40        50
                ....*....|....*....|....*....|....*....|....*....|....
gi 33667117 188 CGVCGKHVHLVQRHLADGRLYHRSCFRCKQCSCTLHSGAYKATGEPGTFVCTSH 241
Cdd:cd09444   1 CAACGQHVHLVQRHLVDGKLYHRNCFRCKECSSTLLPGSYKAGPEPGTFVCTHH 54

calponin homology (CH) domain found in EH domain-binding protein 1 and similar proteins; EHBP1 is a regulator of endocytic recycling and may play a role in actin reorganization by linking clathrin-mediated endocytosis to the actin cytoskeleton. It may act as an effector of small GTPases, including RAB-10 (Rab10), and play a role in vesicle trafficking. EHBP1 is associated with aggressive prostate cancer and insulin-stimulated trafficking and cell migration. Members of this subfamily contain a single copy of the CH domain. CH domains are actin filament (F-actin) binding motifs.

                        10        20        30        40        50        60        70        80
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 33667117   7 LQQWCRQQCEGYRDVNICNMTTSFRDGLAFCAILHRHRPDLINFSALKKENIYENNKLAFRVAeEHLGIPALLDAEDMVA 86
Cdd:cd21254   6 LLAWCKEVTKGYRGVKITNFTTSWRNGLAFCAILHHFRPDLIDYKSLNPHDIKENNKKAYDGF-ASLGISRLLEPSDMVL 84

                        90       100
                ....*....|....*....|...
gi 33667117  87 LKVPDRLSILTYVSQYYNYFHGR 109
Cdd:cd21254  85 LAVPDKLTVMTYLYQIRAHFSGQ 107

calponin homology (CH) domain found in molecule interacting with CasL protein 2; MICAL-2 is a nuclear [F-actin]-monooxygenase that promotes depolymerization of F-actin by mediating oxidation of specific methionine residues on actin to form methionine-sulfoxide, resulting in actin filament disassembly and preventing repolymerization. In the absence of actin, it also functions as a NADPH oxidase producing H(2)O(2). MICAL-2 acts as a key regulator of the serum response factor (SRF) signaling pathway elicited by nerve growth factor and serum. It mediates oxidation and subsequent depolymerization of nuclear actin, leading to the increased MKL1/MRTF-A presence in the nucleus, promoting SRF:MKL1/MRTF-A-dependent gene transcription. MICAL-2 contains a single copy of the CH domain. CH domains are actin filament (F-actin) binding motifs.

                        10        20        30        40        50        60        70        80
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 33667117   7 LQQWCRQQCEGYRDVNICNMTTSFRDGLAFCAILHRHRPDLINFSALKKENIYENNKLAFRVAEEHLGIPALLDAEDMVA 86
Cdd:cd21250   9 LLTWCQKQTEGYQNVNVTDLTTSWKSGLALCAIIHRFRPELIDFDSLNEDDAVKNNQLAFDVAEREFGIPPVTTGKEMAS 88

                        90       100
                ....*....|....*....|..
gi 33667117  87 LKVPDRLSILTYVSQYYNYFHG 108
Cdd:cd21250  89 AEEPDKLSMVMYLSKFYELFRG 110

second calponin homology (CH) domain found in the plectin/dystonin/MACF1 family; This family includes plectin, dystonin and microtubule-actin cross-linking factor 1, isoforms 1/2/3/5 (MACF1). Plectin, also called PCN, PLTN, hemidesmosomal protein 1 (HD1), or plectin-1, is a structural component of muscle. It interlinks intermediate filaments with microtubules and microfilaments, and anchors intermediate filaments to desmosomes or hemidesmosomes. It could also bind muscle proteins such as actin to membrane complexes in muscle. Dystonin, also called 230 kDa bullous pemphigoid antigen, 230/240 kDa bullous pemphigoid antigen, bullous pemphigoid antigen 1 (BPA or BPAG1), dystonia musculorum protein, or hemidesmosomal plaque protein, is a cytoskeletal linker protein that acts as an integrator of intermediate filaments, actin, and microtubule cytoskeleton networks. It is required for anchoring either intermediate filaments to the actin cytoskeleton in neural and muscle cells, or keratin-containing intermediate filaments to hemidesmosomes in epithelial cells. MACF1, also called 620 kDa actin-binding protein (ABP620), actin cross-linking family protein 7 (ACF7), macrophin-1, or trabeculin-alpha, is a large protein containing numerous spectrin and leucine-rich repeat (LRR) domains. It facilitates actin-microtubule interactions at the cell periphery and couples the microtubule network to cellular junctions. Members of this family contain two copies of the CH domain. This model corresponds to the second CH domain. CH domains are actin filament (F-actin) binding motifs.

                        10        20        30        40        50        60        70        80
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 33667117   3 AIRALQQWCRQQCEGYRDVNICNMTTSFRDGLAFCAILHRHRPDLINFSALKKENIYENNKLAFRVAEEHLGIPALLDAE 82
Cdd:cd21189   2 AKEALLLWARRTTEGYPGVRVTNFTSSWRDGLAFNAIIHRNRPDLIDFRSVRNQSNRENLENAFNVAEKEFGVTRLLDPE 81

                        90       100
                ....*....|....*....|....
gi 33667117  83 DmVALKVPDRLSILTYVSQYYNYF 106
Cdd:cd21189  82 D-VDVPEPDEKSIITYVSSLYDVF 104

second calponin homology (CH) domain found in spectrin beta chain, erythrocytic (SPTB) and similar proteins; Spectrin is an actin crosslinking and molecular scaffold protein that links the plasma membrane to the actin cytoskeleton, and functions in the determination of cell shape, arrangement of transmembrane proteins, and organization of organelles. It is composed of two antiparallel dimers of alpha- and beta- subunits. SPTB, also called beta-I spectrin, may be involved in anaemia pathogenesis. SPTB contains two copies of the CH domain. This model corresponds to the second CH domain. CH domains are actin filament (F-actin) binding motifs.

                        10        20        30        40        50        60        70        80
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 33667117   2 AAIRALQQWCRQQCEGYRDVNICNMTTSFRDGLAFCAILHRHRPDLINFSALKKENIYENNKLAFRVAEEHLGIPALLDA 81
Cdd:cd21319   5 SAKDALLLWCQMKTAGYPNVNVTNFTSSWKDGLAFNALIHKHRPDLVDFGKLKKSNARHNLEHAFNVAERQLGITKLLDP 84

                        90       100
                ....*....|....*....|....*
gi 33667117  82 EDmVALKVPDRLSILTYVSQYYNYF 106
Cdd:cd21319  85 ED-VFTENPDEKSIITYVVAFYHYF 108

second calponin homology (CH) domain found in spectrin beta chain, non-erythrocytic 4 (SPTBN4) and similar proteins; Spectrin is an actin crosslinking and molecular scaffold protein that links the plasma membrane to the actin cytoskeleton, and functions in the determination of cell shape, arrangement of transmembrane proteins, and organization of organelles. It is composed of two antiparallel dimers of alpha- and beta- subunits. SPTBN4, also called beta-IV spectrin, or spectrin, non-erythroid beta chain 3 (SPTBN3), is a novel spectrin isolated as an interactor of the receptor tyrosine phosphatase-like protein ICA512. Its mutation associates with congenital myopathy, neuropathy, and central deafness. SPTBN4 contains two copies of the CH domain. This model corresponds to the second CH domain. CH domains are actin filament (F-actin) binding motifs.

                        10        20        30        40        50        60        70        80
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 33667117   2 AAIRALQQWCRQQCEGYRDVNICNMTTSFRDGLAFCAILHRHRPDLINFSALKKENIYENNKLAFRVAEEHLGIPALLDA 81
Cdd:cd21322  17 SAKDALLLWCQMKTAGYPEVNIQNFTTSWRDGLAFNALIHRHRPDLIDFSKLTKSNATYNLQQAFNTAEQHLGLTKLLDP 96

                        90       100
                ....*....|....*....|....*
gi 33667117  82 EDmVALKVPDRLSILTYVSQYYNYF 106
Cdd:cd21322  97 ED-VNMEAPDEKSIITYVVSFYHYF 120

second calponin homology (CH) domain found in spectrin beta chain, non-erythrocytic 1 (SPTBN1) and similar proteins; Spectrin is an actin crosslinking and molecular scaffold protein that links the plasma membrane to the actin cytoskeleton, and functions in the determination of cell shape, arrangement of transmembrane proteins, and organization of organelles. It is composed of two antiparallel dimers of alpha- and beta- subunits. SPTBN1, also called beta-II spectrin, fodrin beta chain, or spectrin, non-erythroid beta chain 1, is also a component of fodrin, which is the general spectrin-like protein that seems to be involved in secretion. Fodrin interacts with calmodulin in a calcium-dependent manner and is thus a candidate for the calcium-dependent movement of the cytoskeleton at the membrane. SPTBN1 contains two copies of the CH domain. This model corresponds to the second CH domain. CH domains are actin filament (F-actin) binding motifs.

                        10        20        30        40        50        60        70        80
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 33667117   2 AAIRALQQWCRQQCEGYRDVNICNMTTSFRDGLAFCAILHRHRPDLINFSALKKENIYENNKLAFRVAEEHLGIPALLDA 81
Cdd:cd21320   2 SAKDALLLWCQMKTAGYPNVNIHNFTTSWRDGMAFNALIHKHRPDLIDFDKLKKSNAHYNLQNAFNLAEQHLGLTKLLDP 81

                        90       100
                ....*....|....*....|....*
gi 33667117  82 EDmVALKVPDRLSILTYVSQYYNYF 106
Cdd:cd21320  82 ED-ISVDHPDEKSIITYVVTYYHYF 105

second calponin homology (CH) domain found in the synaptic nuclear envelope protein (SYNE) family; The SYNE family includes SYNE-1, -2 and calmin. SYNE-1 (also called nesprin-1, enaptin, KASH domain-containing protein 1, KASH1, myocyte nuclear envelope protein 1, MYNE-1, or nuclear envelope spectrin repeat protein 1) and SYNE-2 (also called nesprin-2, KASH domain-containing protein 2, KASH2, nuclear envelope spectrin repeat protein 2, nucleus and actin connecting element protein, or protein NUANCE) may act redundantly. They are multi-isomeric modular proteins which form a linking network between organelles and the actin cytoskeleton to maintain subcellular spatial organization. They also act as components of the LINC (LInker of Nucleoskeleton and Cytoskeleton) complex, which is involved in the connection between the nuclear lamina and the cytoskeleton. Calmin, also called calponin-like transmembrane domain protein, is a protein with calponin homology (CH) and transmembrane domains expressed in maturing spermatogenic cells. It may be involved in the development and/or maintenance of neuronal functions. Members of this family contain two copies of the CH domain. This model corresponds to the second CH domain. CH domains are actin filament (F-actin) binding motifs.

                        10        20        30        40        50        60        70        80
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 33667117   1 MAAIRALQQWCRQQCEGYRDVNICNMTTSFRDGLAFCAILHRHRPDLINFSALKKENIYENNKLAFRVAEEHLGIPALLD 80
Cdd:cd21192   2 GSAEKALLKWVQAEIGKYYGIRVTDFDKSWRDGVAFLALIHAIRPDLVDMKTVKNRSPRDNLELAFRIAEQHLNIPRLLE 81

                        90       100
                ....*....|....*....|....*.
gi 33667117  81 AEDMVALKvPDRLSILTYVSQYYNYF 106
Cdd:cd21192  82 VEDVLVDK-PDERSIMTYVSQFLRMF 106

second calponin homology (CH) domain found in alpha-actinin-1; Alpha-actinin-1 (ACTN1), also called alpha-actinin cytoskeletal isoform, or non-muscle alpha-actinin-1, is an F-actin cross-linking protein which is thought to anchor actin to a variety of intracellular structures. ACTN1 is a bundling protein. Its mutations cause congenital macrothrombocytopenia. It contains two copies of the CH domain. This model corresponds to the second CH domain. CH domains are actin filament (F-actin) binding motifs.

                        10        20        30        40        50        60        70        80
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 33667117   2 AAIRALQQWCRQQCEGYRDVNICNMTTSFRDGLAFCAILHRHRPDLINFSALKKENIYENNKLAFRVAEEHLGIPALLDA 81
Cdd:cd21287  10 SAKEGLLLWCQRKTAPYKNVNIQNFHISWKDGLGFCALIHRHRPELIDYGKLRKDDPLTNLNTAFDVAEKYLDIPKMLDA 89

                        90       100
                ....*....|....*....|....*..
gi 33667117  82 EDMVALKVPDRLSILTYVSQYYNYFHG 108
Cdd:cd21287  90 EDIVGTARPDEKAIMTYVSSFYHAFSG 116

second calponin homology (CH) domain found in alpha-actinin-3; Alpha-actinin-3 (ACTN3), also called alpha-actinin skeletal muscle isoform 3, is an F-actin cross-linking protein which is thought to anchor actin to a variety of intracellular structures. ACTN3 is a bundling protein. It is critical in anchoring the myofibrillar actin filaments and plays a key role in muscle contraction. It contains two copies of the CH domain. This model corresponds to the second CH domain. CH domains are actin filament (F-actin) binding motifs.

                        10        20        30        40        50        60        70        80
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 33667117   2 AAIRALQQWCRQQCEGYRDVNICNMTTSFRDGLAFCAILHRHRPDLINFSALKKENIYENNKLAFRVAEEHLGIPALLDA 81
Cdd:cd21289  10 SAKEGLLLWCQRKTAPYRNVNVQNFHTSWKDGLALCALIHRHRPDLIDYAKLRKDDPIGNLNTAFEVAEKYLDIPKMLDA 89

                        90       100
                ....*....|....*....|....*..
gi 33667117  82 EDMVALKVPDRLSILTYVSQYYNYFHG 108
Cdd:cd21289  90 EDIVNTPKPDEKAIMTYVSCFYHAFAG 116

Calponin homology (CH) domain; The CH domain is found in both cytoskeletal proteins and signal transduction proteins. The CH domain is involved in actin binding in some members of the family. However in calponins there is evidence that the CH domain is not involved in its actin binding activity. Most member proteins have from two to four copies of the CH domain, however some proteins such as calponin have only a single copy.

                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 33667117     1 MAAIRALQQWCRQQCEGYRD-VNICNMTTSFRDGLAFCAILHRHRPDLINFSALKK--ENIYENNKLAFRVAEEHLGIP- 76
Cdd:pfam00307   1 LELEKELLRWINSHLAEYGPgVRVTNFTTDLRDGLALCALLNKLAPGLVDKKKLNKseFDKLENINLALDVAEKKLGVPk 80

                          90       100       110
                  ....*....|....*....|....*....|..
gi 33667117    77 ALLDAEDMVAlkvPDRLSILTYVSQYYNYFHG 108
Cdd:pfam00307  81 VLIEPEDLVE---GDNKSVLTYLASLFRRFQA 109

second calponin homology (CH) domain found in synaptic nuclear envelope protein 2 (SYNE-2) and similar proteins; SYNE-2, also called nesprin-2, KASH domain-containing protein 2 (KASH2), nuclear envelope spectrin repeat protein 2, nucleus and actin connecting element protein, or protein NUANCE, is a multi-isomeric modular protein which forms a linking network between organelles and the actin cytoskeleton to maintain subcellular spatial organization. SYNE-2 also acts as a component of the LINC (LInker of Nucleoskeleton and Cytoskeleton) complex, which is involved in the connection between the nuclear lamina and the cytoskeleton. SYNE-2 contains two copies of the CH domain. This model corresponds to the second CH domain. CH domains are actin filament (F-actin) binding motifs.

                        10        20        30        40        50        60        70        80
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 33667117   1 MAAIRALQQWCRQQCEGYRDVNICNMTTSFRDGLAFCAILHRHRPDLINFSALKKENIYENNKLAFRVAEEHLGIPALLD 80
Cdd:cd21244   4 MSARKALLLWAQEQCAKVGSISVTDFKSSWRNGLAFLAIIHALRPGLVDMEKLKGRSNRENLEEAFRIAEQELKIPRLLE 83

                        90       100
                ....*....|....*....|....*.
gi 33667117  81 AEDmVALKVPDRLSILTYVSQYYNYF 106
Cdd:cd21244  84 PED-VDVVNPDEKSIMTYVAQFLQYS 108

second calponin homology (CH) domain found in synaptic nuclear envelope protein 1 (SYNE-1) and similar proteins; SYNE-1, also called nesprin-1, enaptin, KASH domain-containing protein 1 (KASH1), myocyte nuclear envelope protein 1 (MYNE-1), or nuclear envelope spectrin repeat protein 1, is a multi-isomeric modular protein which forms a linking network between organelles and the actin cytoskeleton to maintain subcellular spatial organization. SYNE-1 also acts as a component of the LINC (LInker of Nucleoskeleton and Cytoskeleton) complex, which is involved in the connection between the nuclear lamina and the cytoskeleton. SYNE-1 contains two copies of the CH domain. This model corresponds to the second CH domain. CH domains are actin filament (F-actin) binding motifs.