Conserved Protein Domain Family
PWWP

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cl02554: PWWP Superfamily 
PWWP (Pro-Trp-Trp-Pro) domain
The PWWP domain, named for a conserved Pro-Trp-Trp-Pro motif, is a small domain consisting of 100-150 amino acids and is composed of a five-stranded antiparallel beta-barrel followed by a helical region. It is found in numerous proteins that are involved in cell division, growth, and differentiation. Most PWWP-domain proteins seem to be nuclear, often DNA-binding, proteins that function as transcription factors regulating a variety of developmental processes. PWWP domains specifically recognize DNA and histone methylated lysines at the level of the nucleosome. Based on the fact that other regions of PWWP-domain proteins are responsible for nuclear localization and DNA-binding, is likely that the PWWP domain acts as a site for protein-protein binding interactions, influencing chromatin remodeling and thereby regulating transcriptional processes. Some PWWP-domain proteins have been linked to cancer or other diseases; some are known to function as growth factors.
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Statistics
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Accession: cl02554
PSSM Id: 470613
Name: PWWP
Created: 8-Feb-2008
Updated: 4-Oct-2023
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