Homo sapiens Protein: PROK2
Summary
InnateDB Protein IDBP-44700.6
Last Modified 2014-10-13 [Report errors or provide feedback]
Gene Symbol PROK2
Protein Name prokineticin 2
Synonyms
Species Homo sapiens
Ensembl Protein ENSP00000295618
InnateDB Gene IDBG-44696 (PROK2)
Protein Structure
UniProt Annotation
Function May function as an output molecule from the suprachiasmatic nucleus (SCN) that transmits behavioral circadian rhythm. May also function locally within the SCN to synchronize output. Potently contracts gastrointestinal (GI) smooth muscle.
Subcellular Localization Secreted.
Disease Associations Hypogonadotropic hypogonadism 4 with or without anosmia (HH4) [MIM:610628]: A disorder characterized by absent or incomplete sexual maturation by the age of 18 years, in conjunction with low levels of circulating gonadotropins and testosterone and no other abnormalities of the hypothalamic- pituitary axis. In some cases, it is associated with non- reproductive phenotypes, such as anosmia, cleft palate, and sensorineural hearing loss. Anosmia or hyposmia is related to the absence or hypoplasia of the olfactory bulbs and tracts. Hypogonadism is due to deficiency in gonadotropin-releasing hormone and probably results from a failure of embryonic migration of gonadotropin-releasing hormone-synthesizing neurons. In the presence of anosmia, idiopathic hypogonadotropic hypogonadism is referred to as Kallmann syndrome, whereas in the presence of a normal sense of smell, it has been termed normosmic idiopathic hypogonadotropic hypogonadism (nIHH). {ECO:0000269PubMed:17054399, ECO:0000269PubMed:23643382}. Note=The disease is caused by mutations affecting distinct genetic loci, including the gene represented in this entry. The genetics of hypogonadotropic hypogonadism involves various modes of transmission. Oligogenic inheritance has been reported in some patients carrying mutations in PROK2 as well as in other HH- associated genes including PROKR2 (PubMed:23643382). {ECO:0000269PubMed:23643382}.
Tissue Specificity Expressed in the testis and, at low levels, in the small intestine.
Comments
Interactions
Number of Interactions This gene and/or its encoded proteins are associated with 0 experimentally validated interaction(s) in this database.
They are also associated with 1 interaction(s) predicted by orthology.
Predicted by orthology
Total 1 [view]
Gene Ontology

Molecular Function
Accession GO Term
GO:0001664 G-protein coupled receptor binding
Biological Process
GO:0000187 activation of MAPK activity
GO:0001525 angiogenesis
GO:0006935 chemotaxis
GO:0006954 inflammatory response
GO:0007186 G-protein coupled receptor signaling pathway
GO:0007204 positive regulation of cytosolic calcium ion concentration
GO:0007218 neuropeptide signaling pathway
GO:0007283 spermatogenesis
GO:0008283 cell proliferation
GO:0019233 sensory perception of pain
GO:0043066 negative regulation of apoptotic process
GO:0045987 positive regulation of smooth muscle contraction
Cellular Component
GO:0005576 extracellular region
Protein Structure and Domains
PDB ID
InterPro IPR023569 Prokineticin domain
PFAM PF06607
PRINTS
PIRSF
SMART
TIGRFAMs
Post-translational Modifications
Modification
Cross-References
SwissProt Q9HC23
PhosphoSite PhosphoSite-
TrEMBL
UniProt Splice Variant
Entrez Gene 60675
UniGene
RefSeq NP_068754
HUGO HGNC:18455
OMIM 607002
CCDS CCDS2916
HPRD 08446
IMGT
EMBL AF182069 AF333025 AY349131 BC069395 BC096695 BC098110 BC098162 CH471055
GenPept AAG16893 AAH69395 AAH96695 AAH98110 AAH98162 AAK49919 AAR06657 EAW65506