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   Kininogen

SourceHomo sapiens (human)
Taxonomy Homo sapiens Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi; Mammalia; Eutheria; Euarchontoglires; Primates; Haplorrhini; Catarrhini; Hominidae; Homo.
KeywordsAlternative splicing; Blood coagulation; Complete proteome; Direct protein sequencing; Disulfide bond; Glycoprotein; Hydroxylation; Inflammatory response; Phosphoprotein; Polymorphism; Protease inhibitor; Pyrrolidone carboxylic acid; Repeat; Secreted; Signal; Thiol protease inhibitor; Vasoactive; Vasodilator.
Details
Function: (1) Kininogens are inhibitors of thiol proteases; (2) HMW-kininogen plays an important role in blood coagulation by helping to position optimally prekallikrein and factor XI next to factor XII; (3) HMW-kininogen inhibits the thrombin- and plasmin-induced aggregation of thrombocytes; (4) the active peptide bradykinin that is released from HMW-kininogen shows a variety of physiological effects: (4A) influence in smooth muscle contraction, (4B) induction of hypotension, (4C) natriuresis and diuresis, (4D) decrease in blood glucose level, (4E) it is a mediator of inflammation and causes (4E1) increase in vascular permeability, (4E2) stimulation of nociceptors (4E3) release of other mediators of inflammation (e.g. prostaglandins), (4F) it has a cardioprotective effect (directly via bradykinin action, indirectly via endothelium-derived relaxing factor action); (5) LMW-kininogen inhibits the aggregation of thrombocytes; (6) LMW-kininogen is in contrast to HMW-kininogen not involved in blood clotting.

Post-translational modification: Bradykinin is released from kininogen by plasma kallikrein. Hydroxylation of Pro-383 occurs prior to the release of bradykinin. Phosphorylation sites are present in the extracelllular medium.

Similarity: Contains 3 cystatin domains.

Subcellular location: Secreted, extracellular space.

Tissue specificity: Secreted in plasma. T-kinin is detected in malignant ovarian, colon and breast carcinomas, but not in benign tumors.

Disease: Defects in KNG1 are the cause of high molecular weight kininogen deficiency (HMWK deficiency)

Alternative products: Event=Alternative splicing; Named isoforms=2; Name=HMW; IsoId=P01042-1; Sequence=Displayed; Name=LMW; IsoId=P01042-2; Sequence=VSP_001261, VSP_001262.

Sequence length: 644 AA.

Sequence
MKLITILFLCSRLLLSLTQESQSEEIDCNDKDLFKAVDAALKKYNSQNQSNNQFVLYRIT
EATKTVGSDTFYSFKYEIKEGDCPVQSGKTWQDCEYKDAAKAATGECTATVGKRSSTKFS
VATQTCQITPAEGPVVTAQYDCLGCVHPISTQSPDLEPILRHGIQYFNNNTQHSSLFMLN
EVKRAQRQVVAGLNFRITYSIVQTNCSKENFLFLTPDCKSLWNGDTGECTDNAYIDIQLR
IASFSQNCDIYPGKDFVQPPTKICVGCPRDIPTNSPELEETLTHTITKLNAENNATFYFK
IDNVKKARVQVVAGKKYFIDFVARETTCSKESNEELTESCETKKLGQSLDCNAEVYVVPW
EKKIYPTVNCQPLGMISLMKRPPGFSPFRSSRIGEIKEETTVSPPHTSMAPAQDEERDSG
KEQGHTRRHDWGHEKQRKHNLGHGHKHERDQGHGHQRGHGLGHGHEQQHGLGHGHKFKLD
DDLEHQGGHVLDHGHKHKHGHGHGKHKNKGKKNGKHNGWKTEHLASSSEDSTTPSAQTQE
KTEGPTPIPSLAKPGVTVTFSDFQDSDLIATMMPPISPAPIQSDDDWIPDIQIDPNGLSF
NPISDFPDTTSPKCPGRPWKSVSEINPTTQMKESYYFDLTDGLS
Accession NumberP01042 
PubMed ID6441591, 2989293, 14702039, 15489334, 3484703, 3828072, 2076202, 4054110, 3366244, 4952632, 7589467, 2989294, 3182782, 12754519, 14760718, 16335952, 19159218, 19824718 
CEX DBHS_KNG1
CTD DB3827
eggNOG DBprNOG15782
Ensembl DBENST00000265023
Genecard DBGC03P187917
GeneID DB3827
GermOnline DBENSG00000113889
GO DB0005615, 0004869, 0008201, 0005102, 0008270, 0007596, 0030146, 0007204, 0007186, 0006954, 0030147, 0030195, 0007162, 0043065, 0006939, 0042311
HGNC DB6383
HPA DBCAB009809, HPA001616, HPA001645
InterPro DBIPR002395, IPR000010, IPR018073
H-InvDBHIX0030808
IPI DBIPI00032328, IPI00215894
KEGGhsa:3827
NCBIK02566, AAA35497, M11437, AAB59550, M11438, M11521, M11522, M11523, M11524, M11525, M11526, M11527, M11528, AAB59551, AK315230, BAG37659, AY248697, AAO61092, AK290839, BAF83528, AK223589, BAD97309, CH471052.2, EAW78179, BC060039, AAH60039, NP_000884
OMAGRPWKPV
OMIM105200, 134820, 202400, 134830, 202400, 134850, 202400, 176930, 601367, 134390, 188055, 227400, 600880, 601367, 612309, 227500, 134500, 306700, 300746, 306900, 227600, 176860, 188050, 612283, 612304, 176880, 612336, 264900, 612416, 234000, 610618, 610619, 229000, 612423, 107300, 188050, 134570, 134580, 193400, 277480, 228960, 612358
Orphanet DB483
OrthoDBEOG9PG8KH
PfamPF00031
PharmaGKBPA225
PROSITE DBPS00287
SMART DBSM00043
UCSCuc003fqr.1, uc010hyt.1
UniGeneHs.77741



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