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Ovarian Kaleidoscope Database (OKdb)

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Kallikrein 1 OKDB#: 1217
 Symbols: KLK1 Species: human
 Synonyms: KALLIKREIN, RENAL/PANCREATIC/SALIVARY, KLKR|  Locus: 19q13.2-q13.4 in Homo sapiens


For retrieval of Nucleotide and Amino Acid sequences please go to: OMIM Entrez Gene
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General Comment Tissue kallikrein is a serine protease thought to be involved in the generation of bioactive peptide kinins from kininogen in many organs such as the kidneys, colon, salivary glands, pancreas, and blood vessels. Unlike pepsin, members of the glandular kallikrein subfamily of serine proteases demonstrate a high degree of substrate specificity. The true physiologic role of specific kallikreins is often unrelated to the kininogenase activity. Expression profiling of purified mouse gonadal somatic cells during the critical time window of sex determination reveals novel candidate genes for human sexual dysgenesis syndromes Beverdam A, et al.

NCBI Summary: Kallikreins are a subgroup of serine proteases having diverse physiological functions. Growing evidence suggests that many kallikreins are implicated in carcinogenesis and some have potential as novel cancer and other disease biomarkers. This gene is one of the fifteen kallikrein subfamily members located in a cluster on chromosome 19. This protein is functionally conserved in its capacity to release the vasoactive peptide, Lys-bradykinin, from low molecular weight kininogen.
General function Enzyme, Hydrolase, Peptidase/Protease
Comment
Cellular localization Secreted
Comment
Ovarian function Ovulation
Comment Holland AM, et al reported kallikrein gene expression in the gonadotrophin-stimulated rat ovary. . The kallikreins (KLKs) are a highly conserved multi-gene family of serine proteases that are expressed in a wide variety of tissues and act on a diverse range of substrates. KLK-like enzyme activity has variously been reported to increase or decrease during the period leading up to ovulation in the equine chorionic gonadotrophin (eCG)primed, human chorionic gonadotrophin (hCG)-stimulated immature rat ovary. They used a gene-specific RT-PCR/Southern hybridisation strategy to delineate the expression patterns of six of the individual KLK genes expressed in the rat ovary (rKLK1-3 and rKLK7-9) and have identified three broad patterns of expression in the eCG/hCG-stimulated ovary in which there is either a post-eCG increase/pre-ovulatory decrease in rKLK expression (rKLK1, rKLK3), a peri-ovulatory decrease in expression (rKLK2, rKLK8) or a relatively unchanged pattern of expression (rKLK7, rKLK9). In addition to clarifying the earlier biochemical studies, these findings support a differential role for the individual KLKs in the ovulatory process.
Expression regulated by LH
Comment
Ovarian localization
Comment
Follicle stages
Comment
Phenotypes
Mutations 0 mutations
Genomic Region show genomic region
Phenotypes and GWAS show phenotypes and GWAS
Links
OMIM (Online Mendelian Inheritance in Man: an excellent source of general gene description and genetic information.)
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created: July 3, 2001, 9:02 p.m. by: hsueh   email:
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last update: Jan. 11, 2006, 11:08 a.m. by: rami    email:



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