STRINGSTRING
STRING protein interaction network
Nodes:
Network nodes represent proteins
splice isoforms or post-translational modifications are collapsed, i.e. each node represents all the proteins produced by a single, protein-coding gene locus.
Node Color
colored nodes:
query proteins and first shell of interactors
white nodes:
second shell of interactors
Node Content
empty nodes:
proteins of unknown 3D structure
filled nodes:
a 3D structure is known or predicted
Edges:
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 to each other.
Known Interactions
from curated databases
experimentally determined
Predicted Interactions
gene neighborhood
gene fusions
gene co-occurrence
Others
textmining
co-expression
protein homology
Your Input:
Neighborhood
Gene Fusion
Cooccurrence
Coexpression
Experiments
Databases
Textmining
[Homology]
Score
Spink2Serine protease inhibitor Kazal-type 2; As a strong inhibitor of acrosin, it is required for normal spermiogenesis. It probably hinders premature activation of proacrosin and other proteases, thus preventing the cascade of events leading to spermiogenesis defects. May be involved in the regulation of serine protease-dependent germ cell apoptosis. It also inhibits trypsin. (86 aa)    
Predicted Functional Partners:
Spink1
Serine protease inhibitor Kazal-type 1; Serine protease inhibitor which exhibits anti-trypsin activity. In the pancreas, protects against trypsin-catalyzed premature activation of zymogens.
  
   
 0.743
Spink13
Serine protease inhibitor Kazal-type 13; May be a serine protease inhibitor (By similarity). Essential for sperm maturation and fertility. Inhibits sperm acrosome reaction, protecting sperm from premature reaction (By similarity).
      
 0.703
Spink11
Serine protease inhibitor Kazal-type 11; Probable serine protease inhibitor.
      
 0.661
Acr
Acrosin heavy chain; Acrosin is the major protease of mammalian spermatozoa. It is a serine protease of trypsin-like cleavage specificity, it is synthesized in a zymogen form, proacrosin and stored in the acrosome; Belongs to the peptidase S1 family.
    
 
 0.639
Spaca1
Sperm acrosome membrane-associated protein 1; Plays a role in acrosome expansion and establishment of normal sperm morphology during spermatogenesis. Important for male fertility.
   
  
 0.571
Nek4
Serine/threonine-protein kinase Nek4; Required for normal entry into proliferative arrest after a limited number of cell divisions, also called replicative senescence. Required for normal cell cycle arrest in response to double-stranded DNA damage (By similarity). Protein kinase that seems to act exclusively upon threonine residues.
      
 0.516
Spinkl
Serine protease inhibitor kazal-like protein, major form; Does not function as an inhibitor of trypsin, chymotrypsin, subtilisin or elastase. Binds sperm and enhances sperm motility. May act as a decapacitation factor, suppresses BSA-stimulated sperm capacitation and blocks sperm-oocyte interactions in vitro.
      
 0.489
Spink5
Serine peptidase inhibitor, Kazal type 5.
      
 0.483
Spink7
Serine protease inhibitor Kazal-type 7; Probable serine protease inhibitor.
      
 0.459
Mpped2
Metallophosphoesterase MPPED2; Displays low metallophosphoesterase activity (in vitro). May play a role in the development of the nervous system. Belongs to the UPF0046 family.
      
 0.454
Your Current Organism:
Mus musculus
NCBI taxonomy Id: 10090
Other names: LK3 transgenic mice, M. musculus, Mus sp. 129SV, house mouse, mouse, nude mice, transgenic mice
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