TOPICS: Homocystinuria, cystathionine synthase, homocysteine, cysteine, hypercoagulability, ectopia lentis, marfanoid habitus, intellectual disability, vitamin B12 (cobalamin), methionine, methylmalonyl CoA, succinyl CoA, methylmalonic acid (MMA), vitamin B9 (folate), homocysteine metabolism, pyridoxine (B6), cystathionine synthase, methionine synthase, cystathionase, cystathionine, methionine, propionyl CoA, S-adenosyl methionine (SAM), THF, 5-methyl tHF, methylene tetrahydrofolate reductase (MTHFR), S-adenosyl homocysteine, ATP, methylation
