SPARQL | HTML5 RDFa and Microdata document
https://identifiers.org/uniprot/P00740
https://identifiers.org/uniprot/P04070
https://identifiers.org/uniprot/P08709
https://identifiers.org/chebi/CHEBI:28384
https://identifiers.org/wikipathways/WP5186
https://identifiers.org/uniprot/P00742
https://identifiers.org/uniprot/P07225
https://identifiers.org/chebi/CHEBI:15759
https://identifiers.org/chebi/CHEBI:16374
https://identifiers.org/chebi/CHEBI:18067
https://identifiers.org/chebi/CHEBI:23853
https://identifiers.org/chebi/CHEBI:28433
https://identifiers.org/chebi/CHEBI:28869
https://identifiers.org/chebi/CHEBI:44245
https://identifiers.org/chebi/CHEBI:48343
https://identifiers.org/chebi/CHEBI:61938
https://identifiers.org/chebi/CHEBI:78277
https://identifiers.org/ec-code/1.17.4.4
https://identifiers.org/hmdb/HMDB0001935
https://identifiers.org/pubmed/25079019
https://identifiers.org/pubmed/27437760
https://identifiers.org/pubmed/35922487
https://identifiers.org/uniprot/P22891
https://identifiers.org/uniprot/P38435
https://identifiers.org/uniprot/Q8N0U8
https://identifiers.org/uniprot/Q9BQB6
https://identifiers.org/wikidata/Q76617139
https://identifiers.org/ncbigene/29914
http://rdf.wikipathways.org/Pathway/WP5186_r135481/Complex/c52e4
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http://rdf.wikipathways.org/Pathway/WP5186_r135481/WP/Interaction/idf5ba4b4a
https://identifiers.org/chebi/CHEBI:6746
https://identifiers.org/wikipathways/WP5186_r135481
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http://purl.obolibrary.org/obo/DOID_11249
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http://purl.org/dc/elements/1.1/title
Vitamin K metabolism and activation of dependent proteins
http://purl.org/dc/terms/description
Vitamin K is recycled in the liver in order to maintain sufficient levels for activating vitamin K-dependent proteins (VKDP), including certain coagulation factors. In this process, vitamin K1 (taken up from the diet) is converted to vitamin K hydroquinone (KH2), either by the dithiol-dependent vitamin K-epoxide reductase (VKOR) or by NAD(P)H dehydrogenase quinone 1. KH2 is in turn oxidized to vitamin K epoxide (KO) by the enzyme gamma-glutamyl carboxylase (GGCX). During this conversion, GGCX activates the VKDPs by converting glutamate (Glu) to gamma-carboxyglutamate (Gla). Lastly, KO is converted back into vitamin K quinone by VKOR.
Warfarin, a drug commonly used as a anticoagulant, inhibits VKOR, thus reducing the levels of VKH2 in the bloodstream.
A too high dosage of warfarin can lead to heavy bleeding, a life-threatening condition.
Threatment of this condition is a high dosis of Vitamine K, which is reduced to VHK2 by FSP1, a warfarin resistant reductase.
The influence of FSP1 on this process, as well as its potential to eliminate lipid perozyl radicals, has been recently described in [https://doi.org/10.1038/s41586-022-05022-3 Nature(2022)] by Mishima et al.: A non-canonical vitamin K cycle is a potent ferroptosis suppressor.
http://purl.org/dc/terms/identifier
http://purl.org/dc/terms/references
https://identifiers.org/pubmed/25079019
https://identifiers.org/pubmed/27437760
https://identifiers.org/pubmed/35922487
http://purl.org/spar/cito/cites
https://identifiers.org/pubmed/25079019
https://identifiers.org/pubmed/35510250
https://identifiers.org/pubmed/35922516
https://identifiers.org/pubmed/27437760
https://identifiers.org/pubmed/35922487
https://identifiers.org/chebi/CHEBI:14321
https://identifiers.org/chebi/CHEBI:18009
https://identifiers.org/ensembl/ENSG00000180210
https://identifiers.org/hmdb/HMDB0000221
https://identifiers.org/uniprot/P00734
https://identifiers.org/uniprot/P15559
https://identifiers.org/uniprot/Q9BRQ8
https://identifiers.org/wikipathways/WP4313
https://identifiers.org/chebi/CHEBI:58756