| factor III | In the clotting of blood, tissue factor or thromboplastin; it initiates the extrinsic pathway by reacting with factor VII and calcium to form factor VIIa. See: thromboplastin. (05 Mar 2000) |
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| uroporphyrin-III C-methyltransferase | <enzyme> From pseudomonas denitrificans; enzyme of the cobalamin biosynthetic pathway which catalyses the c methylation of uroporphyrinogen III; also catalyses both nad+ dependent oxidation of precorrin-2 to sirohydrochlorin and insertion of iron into it to produce siroheme; cysg gene is from E coli; product of coba gene of pseudomonas; do not confuse with coba gene product of salmonella typhimurium which yields ATP-corrinoid adenosyltransferase Registry number: EC 2.1.1.107 Synonym: uroiii methyltransferase, uroporphyrinogen III methylase, sumt methyltransferase, s-adenosylmethionine-uroporphyrinogen III methyltransferase, cysg gene product, siroheme synthase, coba gene product, propionibacterium (26 Jun 1999) |
| uroporphyrinogen-III synthase | <enzyme> An enzyme that catalyses the cyclization of hydroxymethylbilane to yield uroporphyrinogen III and water. Chemical name: Hydroxymethylbilane hydro-lyase (cyclizing) Registry number: EC 4.2.1.75 (12 Dec 1998) |
| forms of DNA i, II and III | Refers to circular DNA removed from viruses and as plasmids. Form I is the DNA in its normal, supercoiled form. Form II is the DNA after one of the two strands has been nicked (cut apart), and is circular. Form III is the DNA after both strands have been broken, and is linear. (09 Oct 1997) |
| Le Fort III craniofacial dysjunction | A complex fracture in which the facial bones are separated from the cranial bones. Synonym: Le Fort III craniofacial dysjunction, Le Fort III fracture, transverse facial fracture. (05 Mar 2000) |
| Le Fort III fracture | A complex fracture in which the facial bones are separated from the cranial bones. Synonym: Le Fort III craniofacial dysjunction, Le Fort III fracture, transverse facial fracture. (05 Mar 2000) |