7a5ex MGC7254|2900022L22Rik|mLip1|7a5ex|4933425M12Rik lipoic acid synthetase Lias O MGI:1934604 MGC7254 mLip1 Gene http://identifiers.org/mgd/MGI:1934604 protein coding gene 2900022L22Rik + 4933425M12Rik genetic mapping