• Version:
  • 11.0 [archived version]
STRINGSTRING
LGMN LGMN CSTA CSTA CTSL CTSL CTSB CTSB CSTB CSTB KCNG4 KCNG4 CST1 CST1 CST4 CST4 STATH STATH CPPED1 CPPED1 CTSW CTSW
"CST4" - Cystatin-S in Homo sapiens
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splice isoforms or post-translational modifications are collapsed, i.e. each node represents all the proteins produced by a single, protein-coding gene locus.
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colored nodes:
query proteins and first shell of interactors
white nodes:
second shell of interactors
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empty nodes:
proteins of unknown 3D structure
filled nodes:
some 3D structure is known or predicted
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Edges represent protein-protein associations
associations are meant to be specific and meaningful, i.e. proteins jointly contribute to a shared function; this does not necessarily mean they are physically binding each other.
Known Interactions
from curated databases
experimentally determined
Predicted Interactions
gene neighborhood
gene fusions
gene co-occurrence
Others
textmining
co-expression
protein homology
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[Homology]
Score
CST4Cystatin-S; This protein strongly inhibits papain and ficin, partially inhibits stem bromelain and bovine cathepsin C, but does not inhibit porcine cathepsin B or clostripain. Papain is inhibited non-competitively; Cystatins, type 2 (141 aa)    
Predicted Functional Partners:
CST1
Cystatin-SN; Human saliva appears to contain several cysteine proteinase inhibitors that are immunologically related to cystatin S but that differ in their specificity due to amino acid sequence differences. Cystatin SN, with a pI of 7.5, is a much better inhibitor of papain and dipeptidyl peptidase I than is cystatin S, although both inhibit ficin equally well (141 aa)
     
 
0.883
CSTB
Cystatin-B; This is an intracellular thiol proteinase inhibitor. Tightly binding reversible inhibitor of cathepsins L, H and B; Belongs to the cystatin family (98 aa)
           
  0.795
KCNG4
Potassium voltage-gated channel subfamily G member 4; Potassium channel subunit that does not form functional channels by itself. Can form functional heterotetrameric channels with KCNB1; modulates the delayed rectifier voltage-gated potassium channel activation and deactivation rates of KCNB1; Belongs to the potassium channel family. G (TC 1.A.1.2) subfamily. Kv6.4/KCNG4 sub-subfamily (519 aa)
       
      0.795
CSTA
Cystatin-A; This is an intracellular thiol proteinase inhibitor. Has an important role in desmosome-mediated cell-cell adhesion in the lower levels of the epidermis; Belongs to the cystatin family (98 aa)
           
  0.793
STATH
Statherin; Salivary protein that stabilizes saliva supersaturated with calcium salts by inhibiting the precipitation of calcium phosphate salts. It also modulates hydroxyapatite crystal formation on the tooth surface; Histatins and statherin (62 aa)
           
  0.788
CTSB
Cathepsin B; Thiol protease which is believed to participate in intracellular degradation and turnover of proteins. Has also been implicated in tumor invasion and metastasis; Cathepsins (339 aa)
           
  0.780
CTSL
Cathepsin L1; Important for the overall degradation of proteins in lysosomes; Cathepsins (333 aa)
           
  0.776
LGMN
Legumain; Has a strict specificity for hydrolysis of asparaginyl bonds. Can also cleave aspartyl bonds slowly, especially under acidic conditions. Required for normal lysosomal protein degradation in renal proximal tubules. Required for normal degradation of internalized EGFR. Plays a role in the regulation of cell proliferation via its role in EGFR degradation (By similarity). May be involved in the processing of proteins for MHC class II antigen presentation in the lysosomal/endosomal system; Belongs to the peptidase C13 family (433 aa)
     
   
  0.768
CTSW
Cathepsin W; May have a specific function in the mechanism or regulation of T-cell cytolytic activity; Cathepsins (376 aa)
     
   
  0.764
CPPED1
Serine/threonine-protein phosphatase CPPED1; Protein phosphatase that dephosphorylates AKT family kinase specifically at ’Ser-473’, blocking cell cycle progression and promoting cell apoptosis. May play an inhibitory role in glucose uptake by adipocytes; Belongs to the metallophosphoesterase superfamily. CPPED1 family (314 aa)
           
  0.756
Your Current Organism:
Homo sapiens
NCBI taxonomy Id: 9606
Other names: H. sapiens, Homo sapiens, human, man
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