. . . . . . . "[In conclusion, the MTHFR 677TTor 1298CC genotypes are much rarer in Africans than in Caucasians. The 677TT low frequency may be related to the high effect of this mutation on homocysteine metabolism in the environmental conditions of this African region.]. Sentence from MEDLINE/PubMed, a database of the U.S. National Library of Medicine."@en . . . . . "2017-02-21"^^ . . "Gene-disease associations inferred from text-mining the literature."@en . "DisGeNET evidence - LITERATURE"@en . "2017-10-17T13:14:49+02:00"^^ . . . . . . . . . . . "v5.0.0.0" . "v5.0.0" .