>sp|A2STY4|RIFK_METLZ Riboflavin kinase OS=Methanocorpusculum labreanum GN=ribK METIDAEDAACLRRIALLGGCKGPVRLSTQALGDQLGISQQTASRRLQSLEKAQMISRTA ESTGQYVLVTRSGEEHLRREFAEYAKIFDVKDEQYVLTGTVMSGVGEGRYYMSIPHYQEQ FEKLCGFTPYPGTLNIKLNPQSVLIRKRMDSLEWTIVPGFKDEHRMFGEARCIKCTISGI PCAIVVPGRTHHPEEVIEVISGTQLRDALDLTENSEVVVVIG