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Protein

Cyclopropane mycolic acid synthase 1

Gene

cmaA1

Organism
Mycobacterium tuberculosis (strain ATCC 25177 / H37Ra)
Status
Reviewed-Annotation score: -Experimental evidence at protein leveli

Functioni

Catalyzes the conversion of a double bond to a cyclopropane ring at the distal position of an alpha mycolic acid via the transfer of a methylene group from S-adenosyl-L-methionine. Cyclopropanated mycolic acids are key factors participating in cell envelope permeability, host immunomodulation and persistence.1 Publication

Catalytic activityi

S-adenosyl-L-methionine + phospholipid olefinic fatty acid = S-adenosyl-L-homocysteine + phospholipid cyclopropane fatty acid.

Pathwayi: mycolic acid biosynthesis

This protein is involved in the pathway mycolic acid biosynthesis, which is part of Lipid metabolism.
View all proteins of this organism that are known to be involved in the pathway mycolic acid biosynthesis and in Lipid metabolism.

Sites

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Active sitei269By similarity1

GO - Molecular functioni

  • cyclopropane-fatty-acyl-phospholipid synthase activity Source: UniProtKB

GO - Biological processi

Keywordsi

Molecular functionMethyltransferase, Transferase
Biological processLipid biosynthesis, Lipid metabolism
LigandS-adenosyl-L-methionine

Enzyme and pathway databases

UniPathwayiUPA00915

Names & Taxonomyi

Protein namesi
Recommended name:
Cyclopropane mycolic acid synthase 1 (EC:2.1.1.79)
Short name:
CMAS
Alternative name(s):
Cyclopropane-fatty-acyl-phospholipid synthase
Short name:
CFA synthase
Short name:
Cyclopropane fatty acid synthase
Mycolic acid methyltransferase
Short name:
MA-MT
S-adenosylmethionine-dependent methyltransferase
Short name:
AdoMet-MT
Short name:
SAM-MT
Gene namesi
Name:cmaA1
Synonyms:cma1
Ordered Locus Names:MRA_3431
OrganismiMycobacterium tuberculosis (strain ATCC 25177 / H37Ra)
Taxonomic identifieri419947 [NCBI]
Taxonomic lineageiBacteriaActinobacteriaCorynebacterialesMycobacteriaceaeMycobacteriumMycobacterium tuberculosis complex
Proteomesi
  • UP000001988 Componenti: Chromosome

Subcellular locationi

GO - Cellular componenti

Keywords - Cellular componenti

Cytoplasm

PTM / Processingi

Molecule processing

Feature keyPosition(s)DescriptionActionsGraphical viewLength
ChainiPRO_00003000631 – 287Cyclopropane mycolic acid synthase 1Add BLAST287

Interactioni

Subunit structurei

Homodimer.By similarity

Protein-protein interaction databases

STRINGi419947.MtubH3_010100001980

Structurei

3D structure databases

ProteinModelPortaliA5U866
SMRiA5U866
ModBaseiSearch...
MobiDBiSearch...

Family & Domainsi

Region

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Regioni33 – 34S-adenosyl-L-methionine bindingBy similarity2
Regioni68 – 76S-adenosyl-L-methionine bindingBy similarity9
Regioni94 – 99S-adenosyl-L-methionine bindingBy similarity6
Regioni123 – 124S-adenosyl-L-methionine bindingBy similarity2

Sequence similaritiesi

Belongs to the CFA/CMAS family.Curated

Phylogenomic databases

HOGENOMiHOG000245191
KOiK00574
OMAiAQHFFTG

Family and domain databases

InterProiView protein in InterPro
IPR003333 Mycolic_cyclopropane_synthase
IPR029063 SAM-dependent_MTases
PIRSFiPIRSF003085 CMAS, 1 hit
SUPFAMiSSF53335 SSF53335, 1 hit

Sequencei

Sequence statusi: Complete.

A5U866-1 [UniParc]FASTAAdd to basket

« Hide

        10         20         30         40         50
MPDELKPHFA NVQAHYDLSD DFFRLFLDPT QTYSCAYFER DDMTLQEAQI
60 70 80 90 100
AKIDLALGKL GLQPGMTLLD VGCGWGATMM RAVEKYDVNV VGLTLSKNQA
110 120 130 140 150
NHVQQLVANS ENLRSKRVLL AGWEQFDEPV DRIVSIGAFE HFGHERYDAF
160 170 180 190 200
FSLAHRLLPA DGVMLLHTIT GLHPKEIHER GLPMSFTFAR FLKFIVTEIF
210 220 230 240 250
PGGRLPSIPM VQECASANGF TVTRVQSLQP HYAKTLDLWS AALQANKGQA
260 270 280
IALQSEEVYE RYMKYLTGCA EMFRIGYIDV NQFTCQK
Length:287
Mass (Da):32,461
Last modified:July 10, 2007 - v1
Checksum:i7E254C15DF5FFF97
GO

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
U27357 Genomic DNA Translation: AAA75624.1
CP000611 Genomic DNA Translation: ABQ75216.1
RefSeqiWP_003900041.1, NZ_CP016972.1

Genome annotation databases

EnsemblBacteriaiABQ75216; ABQ75216; MRA_3431
KEGGimra:MRA_3431

Entry informationi

Entry nameiCMAS1_MYCTA
AccessioniPrimary (citable) accession number: A5U866
Secondary accession number(s): Q11195
Entry historyiIntegrated into UniProtKB/Swiss-Prot: September 11, 2007
Last sequence update: July 10, 2007
Last modified: May 23, 2018
This is version 65 of the entry and version 1 of the sequence. See complete history.
Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programProkaryotic Protein Annotation Program

Miscellaneousi

Keywords - Technical termi

Complete proteome

Documents

  1. PATHWAY comments
    Index of metabolic and biosynthesis pathways
  2. SIMILARITY comments
    Index of protein domains and families

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