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Overview

Uniprot IDP05546
Protein NameHeparin cofactor 2
Gene NameSERPIND1
OrganismHomo sapiens

Kla Sites from experimental identification

Position Flanking peptide
268 KTNNHIMKLTKGLIK
401 LPKFKLEKNYNLVES

Function

Thrombin inhibitor activated by the glycosaminoglycans, heparin or dermatan sulfate. In the presence of the latter, HC-II becomes the predominant thrombin inhibitor in place of antithrombin III (AT-III). Also inhibits chymotrypsin, but in a glycosaminoglycan-independent manner

Protein Sequence

10 MKHSLNALLI 20 FLIITSAWGG 30 SKGPLDQLEK 40 GGETAQSADP 50 QWEQLNNKNL 60 SMPLLPADFH 70 KENTVTNDWI 80 PEGEEDDDYL 90 DLEKIFSEDD 100 DYIDIVDSLS 110 VSPTDSDVSA 120 GNILQLFHGK 130 SRIQRLNILN 140 AKFAFNLYRV 150 LKDQVNTFDN 160 IFIAPVGIST 170 AMGMISLGLK 180 GETHEQVHSI 190 LHFKDFVNAS 200 SKYEITTIHN 210 LFRKLTHRLF 220 RRNFGYTLRS 230 VNDLYIQKQF 240 PILLDFKTKV 250 REYYFAEAQI 260 ADFSDPAFIS 270 KTNNHIMKLT 280 KGLIKDALEN 290 IDPATQMMIL 300 NCIYFKGSWV 310 NKFPVEMTHN 320 HNFRLNEREV 330 VKVSMMQTKG 340 NFLAANDQEL 350 DCDILQLEYV 360 GGISMLIVVP 370 HKMSGMKTLE 380 AQLTPRVVER 390 WQKSMTNRTR 400 EVLLPKFKLE 410 KNYNLVESLK 420 LMGIRMLFDK 430 NGNMAGISDQ 440 RIAIDLFKHQ 450 GTITVNEEGT 460 QATTVTTVGF 470 MPLSTQVRFT 480 VDRPFLFLIY 490 EHRTSCLLFM GRVANPSRS

Gene Ontology

Classification GO ID Description
Cellular Component GO:0005788 endoplasmic reticulum lumen
Cellular Component GO:0070062 extracellular exosome
Cellular Component GO:0005576 extracellular region
Cellular Component GO:0005615 extracellular space
Molecular Function GO:0004866 endopeptidase inhibitor activity
Molecular Function GO:0008201 heparin binding
Molecular Function GO:0004867 serine-type endopeptidase inhibitor activity
Biological Process GO:0007596 blood coagulation
Biological Process GO:0006935 chemotaxis

Reference

[1] Yang Z, Yan C, Ma J, Peng P, Ren X et al.. Lactylome analysis suggests lactylation-dependent mechanisms of metabolic adaptation in hepatocellular carcinoma.. Nat Metab 5(1):61-79. 2023 Jan. PMID: 36593272.