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Transplant Co-Morbidity Superpanel v0.4 CYP2C9 Claire Fryer-Smith gene: CYP2C9 was added
gene: CYP2C9 was added to Transplant Co-Morbidity Superpanel. Sources: Expert list
Mode of inheritance for gene: CYP2C9 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: CYP2C9 were set to 12893985
Phenotypes for gene: CYP2C9 were set to Tolbutamide poor metabolizer, Warfarin sensitivity MIM# 122700
Review for gene: CYP2C9 was set to GREEN
Added comment: CYP2C9 is one of the major drug-metabolizing CYP450 isoforms. It is involved in guidelines for warfarin, phenytoin and NSAIDs (https://www.pharmgkb.org/gene/PA126).

CYP2C9 is the cytochrome P450 enzyme responsible for the metabolism of the isomer of warfarin (see 122700) that is principally responsible for the anticoagulant effect of the drug. Persons with the genotype of impaired metabolism require lower doses of warfarin to achieve an anticoagulant effect similar to that in patients with the normal genotype and are more likely to have an excessive anticoagulant response (PMID: 10073515).

Kirchheiner et al. (2003) (PMID: 12893985) studied the effects of CYP2C9 on celecoxib, a nonsteroidal antiinflammatory drug (NSAID) that is used to treat rheumatoid arthritis and osteoarthritis and exhibits antiinflammatory, analgesic, and antipyretic activity by selective inhibition of cyclooxygenase-2 (COX2; 600262). They found a more than 2-fold reduced oral clearance in homozygous carriers of CYP2C9*3; heterozygous carriers of 1 CYP2C9*3 allele were in between, whereas CYP2C9*2 had no significant influence on celecoxib pharmacokinetics.
Sources: Expert list
Transplant Co-Morbidity Superpanel v0.0 TTR Bryony Thompson gene: TTR was added
gene: TTR was added to Transplant Co-Morbidity Superpanel. Sources: Victorian Clinical Genetics Services,Expert Review Green
Mode of inheritance for gene: TTR was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: TTR were set to 28475415; 35802134; 31554435
Phenotypes for gene: TTR were set to Amyloidosis, hereditary, transthyretin-related MIM#105210
Transplant Co-Morbidity Superpanel v0.0 RET Bryony Thompson gene: RET was added
gene: RET was added to Transplant Co-Morbidity Superpanel. Sources: Melbourne Genomics Health Alliance,Expert Review Green
Mode of inheritance for gene: RET was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Phenotypes for gene: RET were set to Multiple endocrine neoplasia IIB, MIM# 162300; Multiple endocrine neoplasia IIA, MIM# 171400
Transplant Co-Morbidity Superpanel v0.0 RB1 Bryony Thompson gene: RB1 was added
gene: RB1 was added to Transplant Co-Morbidity Superpanel. Sources: Expert Review Green,Expert list
Mode of inheritance for gene: RB1 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Phenotypes for gene: RB1 were set to Retinoblastoma MONDO:0008380