leucine zipper domain found in the TSC22 domain family of leucine zipper transcription factors; The TGF-beta-stimulated clone-22 domain (TSC22D) family includes TSC22D1-4 and similar proteins. They have diverse physiological functions, including cell growth, development, homeostasis, and immune regulation. All family members contain a conserved leucine zipper (ZIP) domain located at the C-terminus. Its first helix is not basic and does not contain the consensus sequence, NXX(A)(A)XX(C/S)R, found in most basic region/leucine zipper (bZIP) proteins. In the bZIP family of transcription factors, the leucine zipper acts as a dimerization domain and the upstream basic region as a DNA-binding domain. However, DNA-binding capability of TSC22D family proteins is not obvious, due to the lack of the basic region found in the original bZIP DNA-binding domains. Similar to bZIP, ZIP forms homo- and heterodimers, resulting in many dimers that may have different effects on transcription.

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                 ....*....|....*....|....*....|....*....|....*....
gi 281364925  70 AMDLVKSHLMIAVREEVEVLKERISELMDKINKLELENSILKSNIPQET 118
Cdd:cd21936    1 AMDLVKSHLMFAVREEVDVLKEQIAELEERISQLERENSLLRSNAPPEV 49

leucine zipper domain found in the TSC22 domain family of leucine zipper transcription factors; The TGF-beta-stimulated clone-22 domain (TSC22D) family includes TSC22D1-4 and similar proteins. They have diverse physiological functions, including cell growth, development, homeostasis, and immune regulation. All family members contain a conserved leucine zipper (ZIP) domain located at the C-terminus. Its first helix is not basic and does not contain the consensus sequence, NXX(A)(A)XX(C/S)R, found in most basic region/leucine zipper (bZIP) proteins. In the bZIP family of transcription factors, the leucine zipper acts as a dimerization domain and the upstream basic region as a DNA-binding domain. However, DNA-binding capability of TSC22D family proteins is not obvious, due to the lack of the basic region found in the original bZIP DNA-binding domains. Similar to bZIP, ZIP forms homo- and heterodimers, resulting in many dimers that may have different effects on transcription.

                         10        20        30        40
                 ....*....|....*....|....*....|....*....|....*....
gi 281364925  70 AMDLVKSHLMIAVREEVEVLKERISELMDKINKLELENSILKSNIPQET 118
Cdd:cd21936    1 AMDLVKSHLMFAVREEVDVLKEQIAELEERISQLERENSLLRSNAPPEV 49

leucine zipper domain found in the TSC22 domain family of leucine zipper transcription factors; The TGF-beta-stimulated clone-22 domain (TSC22D) family includes TSC22D1-4 and similar proteins. They have diverse physiological functions, including cell growth, development, homeostasis, and immune regulation. All family members contain a conserved leucine zipper (ZIP) domain located at the C-terminus. Its first helix is not basic and does not contain the consensus sequence, NXX(A)(A)XX(C/S)R, found in most basic region/leucine zipper (bZIP) proteins. In the bZIP family of transcription factors, the leucine zipper acts as a dimerization domain and the upstream basic region as a DNA-binding domain. However, DNA-binding capability of TSC22D family proteins is not obvious, due to the lack of the basic region found in the original bZIP DNA-binding domains. Similar to bZIP, ZIP forms homo- and heterodimers, resulting in many dimers that may have different effects on transcription.

                         10        20        30        40
                 ....*....|....*....|....*....|....*....|....*....
gi 281364925  70 AMDLVKSHLMIAVREEVEVLKERISELMDKINKLELENSILKSNIPQET 118
Cdd:cd21936    1 AMDLVKSHLMFAVREEVDVLKEQIAELEERISQLERENSLLRSNAPPEV 49

leucine zipper domain found in TSC22 domain family protein 4; TSC22 domain family protein 4 (TSC22D4), also called TSC22-related-inducible leucine zipper protein 2 (TILZ2), or Tsc-22-like protein THG-1, is a transcriptional repressor that acts as a molecular determinant of insulin signalling and glucose handling. It also functions in hepatic lipid handling by regulating hepatic very-low-density-lipoprotein (VLDL) release and lipogenic gene expression. This model corresponds to the conserved leucine zipper (ZIP) domain located at the C-terminus of TSC22D4. Its first helix is not basic and does not contain the consensus sequence, NXX(A)(A)XX(C/S)R, found in most basic region/leucine zipper (bZIP) proteins. Thus, the DNA-binding capability of the ZIP domain is not obvious. Similar to bZIP, ZIP forms homo- and heterodimers, resulting in many dimers that may have different effects on transcription.

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                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|...
gi 281364925  61 VAIDNKIEQAMDLVKSHLMIAVREEVEVLKERISELMDKINKLELENSILKSNIPQETLQQLQLQLQLAAPPA 133
Cdd:cd21941    1 VAIDNKIEQAMDLVKSHLLFAVREEVEVLKEQIKELSERNAALEQENSLLRSLATPQQLSRLQSRQPTSRKPA 73

leucine zipper domain found in TSC22 domain family protein 3; TSC22 domain family protein 3 (TSC22D3) is also called DSIP-immunoreactive peptide, protein DIP, delta sleep-inducing peptide immunoreactor, glucocorticoid-induced leucine zipper protein (GILZ), TSC-22-like protein, or TSC-22-related protein (TSC-22R). It protects T-cells from IL2 deprivation-induced apoptosis through the inhibition of FOXO3A transcriptional activity that leads to the down-regulation of the pro-apoptotic factor BCL2L11. In macrophages, it plays a role in the anti-inflammatory and immunosuppressive effects of glucocorticoids and IL10. In T-cells, it inhibits anti-CD3-induced NFKB1 nuclear translocation. TSC22D3 contains a leucine zipper motif, a Pro/Glu rich domain, and three potential phosphorylation sites. This model corresponds to the leucine zipper (ZIP) domain. Its first helix is not basic and does not contain the consensus sequence, NXX(A)(A)XX(C/S)R, found in most basic region/leucine zipper (bZIP) proteins. Thus, the DNA-binding capability of the ZIP domain is not obvious. Similar to bZIP, ZIP forms homo- and heterodimers, resulting in many dimers that may have different effects on transcription.

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                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....
gi 281364925  70 AMDLVKSHLMIAVREEVEVLKERISELMDKINKLELENSILK------------SNIPQETLQQLQLQLQLAAP 131
Cdd:cd21940    1 AMDLVKNHLMYAVREEVEVLKEQIKELVEKNSQLERENSLLKtlaspeqlekfqSRLPSEETAPETPLDAQPAE 74

leucine zipper found in the TSC22 domain leucine zipper transcription factors, c-Myc-binding protein, and similar proteins; The family includes TGF-beta-stimulated clone-22 domain (TSC22D) leucine zipper transcription factors, TSC22D1-4, as well as c-Myc-binding protein (MycBP). TSC22D proteins have diverse physiological functions, including cell growth, development, homeostasis, and immune regulation. MycBP, also called associate of Myc 1 (AMY-1), is a novel c-Myc binding protein that may control the transcriptional activity of Myc. It stimulates the activation of E box-dependent transcription by Myc. Members of this family contain a conserved leucine zipper (ZIP) domain. Its first helix is not basic and does not contain the consensus sequence, NXX(A)(A)XX(C/S)R, found in most basic region/leucine zipper (bZIP) proteins. In the bZIP family of transcription factors, the leucine zipper acts as a dimerization domain and the upstream basic region as a DNA-binding domain. However, DNA-binding capability of TSC22D family proteins is not obvious, due to the lack of the basic region found in the original bZIP DNA-binding domains. Similar to bZIP, ZIP forms homo- and heterodimers, resulting in many dimers that may have different effects on transcription.

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                 ....*....|....*....|....*....|....*....|....
gi 281364925  71 MDLVKSHLMIAVREE--VEVLKERISELMDKINKLELENSILKS 112
Cdd:cd21927    2 LDFLKHHLGAATPENpeIELLRLELAEMKEKYEAIVEENKKLKA 45

Basic leucine zipper (bZIP) domain of Fungal Zip1-like transcription factors: a DNA-binding and dimerization domain; This subfamily is composed of fungal bZIP transcription factors including Schizosaccharomyces pombe Zip1, Saccharomyces cerevisiae Methionine-requiring protein 28 (Met28p), and Neurospora crassa cys-3, among others. Zip1 is required for the production of key proteins involved in sulfur metabolism and also plays a role in cadmium response. Met28p acts as a cofactor of Met4p, a transcriptional activator of the sulfur metabolic network; it stabilizes DNA:Met4 complexes. bZIP factors act in networks of homo and heterodimers in the regulation of a diverse set of cellular processes. The bZIP structural motif contains a basic region and a leucine zipper, composed of alpha helices with leucine residues 7 amino acids apart, which stabilize dimerization with a parallel leucine zipper domain. Dimerization of leucine zippers creates a pair of the adjacent basic regions that bind DNA and undergo conformational change. Dimerization occurs in a specific and predictable manner resulting in hundreds of dimers having unique effects on transcription.

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gi 281364925  83 REEVEVLKERISELMDKINKLELENSILK 111
Cdd:cd14705   27 EEKLKELEERIKELERRLDELESENKFLK 55