Intracellular hyaluronan-binding protein 4 - Q5JVS0 (HABP4_HUMAN)

 

Protein Feature View of PDB entries mapped to a UniProtKB sequence  

 
Function
RNA-binding protein that plays a role in the regulation of transcription, pre-mRNA splicing and mRNA translation (PubMed:14699138, PubMed:16455055, PubMed:19523114, PubMed:21771594). Negatively regulates DNA-binding activity of the transcription factor MEF2C in myocardial cells in response to mechanical stress (By similarity). Plays a role in pre-mRNA splicing regulation (PubMed:19523114). Binds (via C-terminus) to poly(U) RNA (PubMed:19523114). Involved in mRNA translation regulation, probably at the initiation step (PubMed:21771594). Seems to play a role in PML-nuclear bodies formation (PubMed:28695742). UniProt
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Subunit Structure
Associates with polysomes (PubMed:21771594). Interacts with FMR1 (PubMed:21771594). Interacts with FXR1 and FXR2 (PubMed:21771594). Interacts with CHD3 (via C-terminus) (PubMed:12505151). Interacts (via C-terminus) with RACK1 (PubMed:14699138). Interacts with p53/TP53 (PubMed:16455055). Interacts (via N-terminus) with SRSF9; this interaction is direct (PubMed:19523114). Interacts with SYNCRIP; this interaction is direct (PubMed:19523114). Interacts with MEF2C (via N-terminus); this interaction decreases DNA-binding activity of MEF2C in myocardial cells in response to mechanical stress (PubMed:15862299). Interacts with PRMT1 (via N-terminus) (PubMed:16879614). Interacts with SPIN1 (By similarity). UniProt
Domain
The C-terminal region is necessary for nucleus and cytoplasmic localization (PubMed:19523114). The N-terminal region is necessary for nucleus and nuclear bodies localization (PubMed:19523114). Regions containing Arg-Gly-Gly repeats (RGG/RXR-box) may be preferentially methylated by PRMT1 (PubMed:16879614). UniProt
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Data in green originates from UniProtKB  
Variation data (sourced from UniProt) shows non-genetic variation from the ExPASy   and dbSNP   websites.
Data in yellow originates from Pfam  , by interacting with the HMMER3 web site  
Data in purple originates from Phosphosite  .
Data in orange originates from the SCOP   (version 1.75) and SCOPe   (version 2.04) classifications.
Data in grey has been calculated using BioJava  . Protein disorder predictions are based on JRONN (Troshin, P. and Barton, G. J. unpublished), a Java implementation of RONN  
  • Red: potentially disorderd region
  • Blue: probably ordered region.
Hydropathy has been calculated using a sliding window of 15 residues and summing up scores from standard hydrophobicity tables.
  • Red: hydrophobic
  • Blue: hydrophilic.
Data in lilac represent the genomic exon structure projected onto the UniProt sequence.
Data in blue originates from PDB
  • Secstruc: Secondary structure projected from representative PDB entries onto the UniProt sequence.
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Validation Track

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Data in red indicates combined ranges of Homology Models from the SWISS-MODEL Repository  
The PDB to UniProt mapping is based on the data provided by the EBI SIFTS project. See also Velankar et al., Nucleic Acids Research 33, D262-265 (2005).
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