>sp|Q82Y18|PANB_NITEU 3-methyl-2-oxobutanoate hydroxymethyltransferase OS=Nitrosomonas europaea GN=panB MDQSAAKRMTITTLQNACEQGEKIAVLTCYDATFAAVLEEAGVDILLVGDSLGNVVQGKS STLPVTLDEMIYHVRCVERGTHRVFIMADMPFGTFQVSPQEAFGNAVRLMAAGAQMVKIE GGQHMAETVEFLSCRGIPVCAHIGLMPQFVHQLGGYRVQGKTPNDARQLREDALLLQEAG AAMLLMELIPAVLGEEITRLLSIPTIGIGAGAACSGQVLVLHDMLGISSGTLPRFVRNFM MDADSIQTAVSNYVEAVKLGAFPAYEHTF