Synaptopodin-2 - Q9UMS6 (SYNP2_HUMAN)

 

Protein Feature View of PDB entries mapped to a UniProtKB sequence  

 
Function
Has an actin-binding and actin-bundling activity. Can induce the formation of F-actin networks in an isoform-specific manner (PubMed:24005909, PubMed:23225103). At the sarcomeric Z lines is proposed to act as adapter protein that links nascent myofibers to the sarcolemma via ZYX and may play a role in early assembly and stabilization of the Z lines. Involved in autophagosome formation. May play a role in chaperone-assisted selective autophagy (CASA) involved in Z lines maintenance in striated muscle under mechanical tension; may link the client-processing CASA chaperone machinery to a membrane-tethering and fusion complex providing autophagosome membranes (By similarity). Involved in regulation of cell migration (PubMed:22915763, PubMed:25883213). May be a tumor suppressor (PubMed:16885336). UniProt
Pathway Maps
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Subunit Structure
May self-associate in muscle cells under oxidative stress. Binds F-actin (PubMed:23225103). Interacts with ACTN2; ACTN2 is proposed to anchor SYOP2 at Z lines in mature myocytes (PubMed:20554076). Interacts with AKAP6, PPP3CA and CAMK2A. Interacts (phosphorylated form) with YWHAB; YWHAB competes with ACTN2 for interaction with SYNPO2. Interacts with KPNA2; mediating nuclear import of SYNOP2; dependent on interaction with YWHAB (By similarity). Interacts with IPO13; may be implicated in SYNOP2 nuclear import (PubMed:17828378). Interacts with ZYX, FLNC, ILK (PubMed:16885336, PubMed:20554076, PubMed:21643011). Interacts with BAG3 (via WW 1 domain). May associate with the CASA complex consisting of HSPA8, HSPB8 and BAG3. Interacts with VPS18 (PubMed:23434281). UniProt
Domain
The PPPY motif interacts with the WW domain 1 of BAG3. 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 Protein disorder predictions are based on JRONN (Troshin, P. and Barton, G. J. unpublished), a Java implementation of RONN  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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