{PDOC51725} {PS51725; ABM} {BEGIN} ********************** * ABM domain profile * ********************** The antibiotic biosynthesis monooxygenase (ABM) domain is found in proteins involved in a diverse range of biological processes, including metabolism, transcription, translation and biosynthesis of secondary metabolites: - Streptomyces coelicolor ActVA-Orf6 monooxygenase, plays a role in the biosynthesis of aromatic polyketides, specifically the antibiotic actinorhodin, by oxidizing phenolic groups to quinones [1]. - Escherichia coli probable quinol monooxygenase YgiN, can oxidize menadiol to menadione [2]. - Staphylococcus aureus heme-degrading enzymes IsdG and IsdI [3,4]. - Staphylococci signal transduction protein TRAP (target of RNAIII- activating protein) [5]. - Mycobacterium tuberculosis heme-degrading monooxygenase MhuD (or Rv3592) [6]. - Mycobacterium tuberculosis putative monooxygenase Rv0793, might be involved in antibiotic biosynthesis, or may act as reactive oxygen species scavenger that could help in evading host defenses [7]. - Thermus thermophilus hypothetical protein TT1380 [8]. The ABM domain has only moderate sequence homology while sharing a high degree of structural similarity. The ABM domain crystallizes as a homodimer. Each monomer is composed of three alpha-helices (H1-3) and four beta-strands (S1-4) and has a ferredoxin-like split BetaAlphaBeta-fold with an antiparallel beta- sheet (see <1IUJ>). The beta-sheets of two monomers form a 10-strand, anti- parallel beta-barrel. The barrel is built of two smaller sheets that are connected by long C-terminal strands crossing over from one monomer to the other providing important interactions within the dimer. The core of the barrel is mainly hydrophobic [1,2,3,5,7,8]. The profile we developed covers the entire ABM domain. -Sequences known to belong to this class detected by the profile: ALL. -Other sequence(s) detected in Swiss-Prot: NONE. -Last update: July 2014 / First entry. [ 1] Sciara G., Kendrew S.G., Miele A.E., Marsh N.G., Federici L., Malatesta F., Schimperna G., Savino C., Vallone B. "The structure of ActVA-Orf6, a novel type of monooxygenase involved in actinorhodin biosynthesis." EMBO J. 22:205-215(2003). PubMed=12514126; DOI=10.1093/emboj/cdg031 [ 2] Adams M.A., Jia Z. "Structural and biochemical evidence for an enzymatic quinone redox cycle in Escherichia coli: identification of a novel quinol monooxygenase." J. Biol. Chem. 280:8358-8363(2005). PubMed=15613473; DOI=10.1074/jbc.M412637200 [ 3] Wu R., Skaar E.P., Zhang R., Joachimiak G., Gornicki P., Schneewind O., Joachimiak A. "Staphylococcus aureus IsdG and IsdI, heme-degrading enzymes with structural similarity to monooxygenases." J. Biol. Chem. 280:2840-2846(2005). PubMed=15520015; DOI=10.1074/jbc.M409526200 [ 4] Lee W.C., Reniere M.L., Skaar E.P., Murphy M.E.P. "Ruffling of metalloporphyrins bound to IsdG and IsdI, two heme-degrading enzymes in Staphylococcus aureus." J. Biol. Chem. 283:30957-30963(2008). PubMed=18713745; DOI=10.1074/jbc.M709486200 [ 5] Henrick K., Hirshberg M. "Structure of the signal transduction protein TRAP (target of RNAIII-activating protein)." Acta Crystallogr. F 68:744-750(2012). PubMed=22750855; DOI=10.1107/S1744309112020167 [ 6] Chim N., Iniguez A., Nguyen T.Q., Goulding C.W. "Unusual diheme conformation of the heme-degrading protein from Mycobacterium tuberculosis." J. Mol. Biol. 395:595-608(2010). PubMed=19917297; DOI=10.1016/j.jmb.2009.11.025 [ 7] Lemieux M.J., Ference C., Cherney M.M., Wang M., Garen C., James M.N.G. "The crystal structure of Rv0793, a hypothetical monooxygenase from M. tuberculosis." J. Struct. Funct. Genomics 6:245-257(2005). PubMed=16496224; DOI=10.1007/s10969-005-9004-6 [ 8] Wada T., Shirouzu M., Terada T., Kamewari Y., Park S.-Y., Tame J.R.H., Kuramitsu S., Yokoyama S. "Crystal structure of the conserved hypothetical protein TT1380 from Thermus thermophilus HB8." Proteins 55:778-780(2004). PubMed=15103643; DOI=10.1002/prot.20122 -------------------------------------------------------------------------------- PROSITE is copyrighted by the SIB Swiss Institute of Bioinformatics and distributed under the Creative Commons Attribution-NonCommercial-NoDerivatives (CC BY-NC-ND 4.0) License, see https://prosite.expasy.org/prosite_license.html -------------------------------------------------------------------------------- {END}