CMAS2_MYCBO
ID CMAS2_MYCBO Reviewed; 302 AA.
AC P0A5P1; A0A1R3XVJ6; Q11196; X2BFA2;
DT 15-MAR-2005, integrated into UniProtKB/Swiss-Prot.
DT 15-MAR-2005, sequence version 1.
DT 03-AUG-2022, entry version 91.
DE RecName: Full=Cyclopropane mycolic acid synthase 2;
DE Short=CMAS;
DE EC=2.1.1.79;
DE AltName: Full=Cyclopropane-fatty-acyl-phospholipid synthase;
DE Short=CFA synthase;
DE Short=Cyclopropane fatty acid synthase;
DE AltName: Full=Mycolic acid methyltransferase;
DE Short=MA-MT;
DE AltName: Full=S-adenosylmethionine-dependent methyltransferase;
DE Short=AdoMet-MT;
DE Short=SAM-MT;
GN Name=cmaA2; Synonyms=cma2; OrderedLocusNames=BQ2027_MB0515C;
OS Mycobacterium bovis (strain ATCC BAA-935 / AF2122/97).
OC Bacteria; Actinobacteria; Corynebacteriales; Mycobacteriaceae;
OC Mycobacterium; Mycobacterium tuberculosis complex.
OX NCBI_TaxID=233413;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=ATCC BAA-935 / AF2122/97;
RX PubMed=12788972; DOI=10.1073/pnas.1130426100;
RA Garnier T., Eiglmeier K., Camus J.-C., Medina N., Mansoor H., Pryor M.,
RA Duthoy S., Grondin S., Lacroix C., Monsempe C., Simon S., Harris B.,
RA Atkin R., Doggett J., Mayes R., Keating L., Wheeler P.R., Parkhill J.,
RA Barrell B.G., Cole S.T., Gordon S.V., Hewinson R.G.;
RT "The complete genome sequence of Mycobacterium bovis.";
RL Proc. Natl. Acad. Sci. U.S.A. 100:7877-7882(2003).
RN [2]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA], AND GENOME REANNOTATION.
RC STRAIN=ATCC BAA-935 / AF2122/97;
RX PubMed=28385856; DOI=10.1128/genomea.00157-17;
RA Malone K.M., Farrell D., Stuber T.P., Schubert O.T., Aebersold R.,
RA Robbe-Austerman S., Gordon S.V.;
RT "Updated reference genome sequence and annotation of Mycobacterium bovis
RT AF2122/97.";
RL Genome Announc. 5:E00157-E00157(2017).
CC -!- FUNCTION: Catalyzes the formation of trans cyclopropanated ketomycolate
CC or methoxymycolate through the conversion of a double bond to a
CC cyclopropane ring at the proximal position of an oxygenated mycolic
CC acid via the transfer of a methylene group from S-adenosyl-L-
CC methionine. In the absence of MmaA2, CmaA2 has a non-specific cis-
CC cyclopropanating activity and is able to catalyze the conversion of a
CC double bond to a cis cyclopropane ring at the distal position of an
CC alpha mycolic acid. Cyclopropanated mycolic acids are key factors
CC participating in cell envelope permeability, host immunomodulation and
CC persistence (By similarity). {ECO:0000250}.
CC -!- CATALYTIC ACTIVITY:
CC Reaction=1-acyl-2-(9Z)-enoyl-sn-glycero-3-phospholipid + S-adenosyl-L-
CC methionine = 1-acyl-2-(9-cyclopronane)-acyl-sn-glycero-3-phospholipid
CC + H(+) + S-adenosyl-L-homocysteine; Xref=Rhea:RHEA:11988,
CC ChEBI:CHEBI:15378, ChEBI:CHEBI:57856, ChEBI:CHEBI:59789,
CC ChEBI:CHEBI:76593, ChEBI:CHEBI:76594; EC=2.1.1.79;
CC -!- PATHWAY: Lipid metabolism; mycolic acid biosynthesis.
CC -!- SUBUNIT: Homodimer. {ECO:0000250}.
CC -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000250}.
CC -!- SIMILARITY: Belongs to the CFA/CMAS family. {ECO:0000305}.
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DR EMBL; LT708304; SIT99111.1; -; Genomic_DNA.
DR RefSeq; NP_854178.1; NC_002945.3.
DR RefSeq; WP_003402621.1; NC_002945.4.
DR AlphaFoldDB; P0A5P1; -.
DR SMR; P0A5P1; -.
DR PRIDE; P0A5P1; -.
DR PATRIC; fig|233413.5.peg.561; -.
DR OMA; ERHHFIG; -.
DR UniPathway; UPA00915; -.
DR Proteomes; UP000001419; Chromosome.
DR GO; GO:0005737; C:cytoplasm; IEA:UniProtKB-SubCell.
DR GO; GO:0008825; F:cyclopropane-fatty-acyl-phospholipid synthase activity; IEA:UniProtKB-EC.
DR GO; GO:0008610; P:lipid biosynthetic process; IEA:InterPro.
DR GO; GO:0032259; P:methylation; IEA:UniProtKB-KW.
DR Gene3D; 3.40.50.150; -; 1.
DR InterPro; IPR003333; Mycolic_cyclopropane_synthase.
DR InterPro; IPR029063; SAM-dependent_MTases_sf.
DR PIRSF; PIRSF003085; CMAS; 1.
DR SUPFAM; SSF53335; SSF53335; 1.
PE 3: Inferred from homology;
KW Cytoplasm; Lipid biosynthesis; Lipid metabolism; Methyltransferase;
KW S-adenosyl-L-methionine; Transferase.
FT CHAIN 1..302
FT /note="Cyclopropane mycolic acid synthase 2"
FT /id="PRO_0000089567"
FT ACT_SITE 284
FT /evidence="ECO:0000250"
FT BINDING 41..42
FT /ligand="S-adenosyl-L-methionine"
FT /ligand_id="ChEBI:CHEBI:59789"
FT /evidence="ECO:0000250"
FT BINDING 76..84
FT /ligand="S-adenosyl-L-methionine"
FT /ligand_id="ChEBI:CHEBI:59789"
FT /evidence="ECO:0000250"
FT BINDING 102..107
FT /ligand="S-adenosyl-L-methionine"
FT /ligand_id="ChEBI:CHEBI:59789"
FT /evidence="ECO:0000250"
FT BINDING 131..132
FT /ligand="S-adenosyl-L-methionine"
FT /ligand_id="ChEBI:CHEBI:59789"
FT /evidence="ECO:0000250"
SQ SEQUENCE 302 AA; 34660 MW; 63AAA95627F95755 CRC64;
MTSQGDTTSG TQLKPPVEAV RSHYDKSNEF FKLWLDPSMT YSCAYFERPD MTLEEAQYAK
RKLALDKLNL EPGMTLLDIG CGWGSTMRHA VAEYDVNVIG LTLSENQYAH DKAMFDEVDS
PRRKEVRIQG WEEFDEPVDR IVSLGAFEHF ADGAGDAGFE RYDTFFKKFY NLTPDDGRML
LHTITIPDKE EAQELGLTSP MSLLRFIKFI LTEIFPGGRL PRISQVDYYS SNAGWKVERY
HRIGANYVPT LNAWADALQA HKDEAIALKG QETYDIYMHY LRGCSDLFRD KYTDVCQFTL
VK