>sp|Q6LLU3|BTUB_PHOPR Vitamin B12 transporter BtuB OS=Photobacterium profundum GN=btuB MKKTLLAVALAPLCLPSQVFAADESSNDVMVVTANRFEQPIKNVIAPISVVTKEEIDAIQ AKSIAEVLRRLPGVQVVSGGYGQATEVYVRGTTSRHLLVMINGVRIGSATLGSADFSQIP LTGIERIELIRGSRAALYGSDAIGGVLNIITAYQPGESVAEVTAGGGSDGFYQLGGSVAG GLGESGWGKIALKTEGADGFSARKEPFEQDDDGFKNSNVVAEVGTHVGDHWKLSLQGYYH DGESDYDDSYGAPHAQSESSLFNIAAKAGYSNDKLDSQFTVAQNQDENRNFNDVSSGSKI KTERTVANWQNHYQLTDGLELGGGLEWYRDSVSNTGTQYAEDERDNTAVYLTSIYRISDW QFEGSVRTDDNDSYGTNNTWQLATAYNITSELKVSANAGTGFKAPTFNDLYWPDSGNPNL KPEESKNYEISLSGTHQLLDWSITGYQSEIDQLIAWAPKDASNPSGDWIPMNVDEAEIQG IELTAGFATGMLYHDVSYDYLDAKDKGLDKQLIRRSKDSAKWNVSYLAEQWQLDVSAIYK GTSYDDAANTKKLDAYTLVDIAASYFVTDNLSVRGRIANLFDKDYVAKETYNVQERSYYA TATYKF