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p53-like transcription factors superfamily
SCOP classification
Superfamily statistics
Functional annotation
| General category | Regulation |
| Detailed category | DNA-binding |
Function annotation of SCOP domain superfamilies
InterPro annotation
| Cross references | IPR008967 SSF49417 Protein matches |
| Abstract | This domain is found in a number of transcription factors, including p53, NFATC, TonEBP, STAT-1, and NFkappaB, where it is responsible for DNA-binding. These transcription factors play diverse roles in the regulation of cellular functions: the p53 tumour suppressor upregulates the expression of genes involved in cell cycle arrest and apoptosis [ 12826037]; NFATC regulates the production of effector proteins involved in coordinating the immune response [8990122]; TonEBP regulates gene expression induced by osmotic stress and helps regulate intracellular volume during cell growth [12729611]; STAT-1 plays an important role in B lymphocyte growth and function [12855573]; and NFkappaB is involved in the inflammatory response [12421671]. The DNA-binding domain acts to clamp, or in the case of TonEBP, encircle the DNA target in order to stabilize the protein-DNA complex [11780147]. Protein interactions may also serve to stabilize the protein-DNA complex, for example in the STAT-1 dimer the SH2 (Src homology 2) domain in each monomer is coupled to the DNA-binding domain to increase stability [9630226]. The DNA-binding domain consists of a beta-sandwich formed of 9 strands in 2 sheets with a Greek-key topology. This structure is found in many transcription factors, often within the DNA-binding domain. |
InterPro database
PDBeMotif information about ligands, sequence and structure motifs
PDBeMotif resource
Jump to [ Top of page · SCOP classification · InterPro annotation · PDBeMotif links · Functional annotation ]
Internal database links
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Browse genome assignments for this superfamily. The SUPERFAMILY hidden Markov model library has been used to carry
out SCOP domain assignments to all genomes at the superfamily level.
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Alignments of sequences to 19 models
in this superfamily are available by clicking on the 'Alignments' icon above. PDB sequences less than 40% identical
are shown by default, but any other sequence(s) may be aligned. Select PDB sequences, genome sequences, or paste in or upload your own sequences.
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Browse and view proteins in genomes which have
different domain combinations including a p53-like transcription factors domain.
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Examine the distribution of domain superfamilies, or families, across the major taxonomic kingdoms or genomes within a kingdom. This gives an immediate impression of how superfamilies, or families, are restricted to certain kingdoms of life.
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Explore domain occurrence network where nodes represent genomes and edges are domain architectures (shared between genomes) containing the superfamily of interest.
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There are 19 hidden Markov models representing the p53-like transcription factors superfamily. Information on how the models are built, and plots showing hydrophobicity, match emmission probabilities and insertion/deletion probabilities can be inspected.
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Jump to [ Top of page · SCOP classification · InterPro annotation · PDBeMotif links · Functional annotation · Internal database links ]
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