UniProtKB - P9WGB7 (METB_MYCTU)
Protein
Cystathionine gamma-synthase
Gene
metB
Organism
Mycobacterium tuberculosis (strain ATCC 25618 / H37Rv)
Status
Functioni
Catalyzes the formation of L-cystathionine from O-succinyl-L-homoserine (OSHS) and L-cysteine, via a gamma-replacement reaction (By similarity). In the absence of thiol, catalyzes gamma-elimination to form 2-oxobutanoate, succinate and ammonia.By similarity1 Publication
Catalytic activityi
- EC:2.5.1.48
Cofactori
pyridoxal 5'-phosphate1 PublicationNote: Binds 1 pyridoxal phosphate per subunit.1 Publication
Kineticsi
The KM value was measured when assaying the gamma-elimination reaction.
- KM=0.32 mM for O-succinyl-L-homoserine (at pH 7.5 and 30 degrees Celsius)1 Publication
: L-methionine biosynthesis via de novo pathway Pathwayi
This protein is involved in step 1 of the subpathway that synthesizes L-cystathionine from O-succinyl-L-homoserine.Proteins known to be involved in this subpathway in this organism are:
- Cystathionine gamma-synthase (metB)
View all proteins of this organism that are known to be involved in the subpathway that synthesizes L-cystathionine from O-succinyl-L-homoserine, the pathway L-methionine biosynthesis via de novo pathway and in Amino-acid biosynthesis.
GO - Molecular functioni
- carbon-sulfur lyase activity Source: GO_Central
- cystathionine gamma-lyase activity Source: MTBBASE
- cystathionine gamma-synthase activity Source: MTBBASE
- pyridoxal phosphate binding Source: GO_Central
GO - Biological processi
- cysteine biosynthetic process via cystathionine Source: MTBBASE
- L-methionine biosynthetic process from L-homoserine via cystathionine Source: MTBBASE
- sulfur amino acid metabolic process Source: Reactome
- transsulfuration Source: GO_Central
Keywordsi
Molecular function | Transferase |
Biological process | Amino-acid biosynthesis, Methionine biosynthesis |
Ligand | Pyridoxal phosphate |
Enzyme and pathway databases
BioCyci | MTBH37RV:G185E-5241-MONOMER |
Reactomei | R-MTU-937250 Sulfur amino acid metabolism |
UniPathwayi | UPA00051;UER00077 |
Names & Taxonomyi
Protein namesi | Recommended name: Cystathionine gamma-synthase (EC:2.5.1.48)Short name: CGS Alternative name(s): O-succinylhomoserine (thiol)-lyase |
Gene namesi | Name:metB Ordered Locus Names:Rv1079 ORF Names:MTV017.32 |
Organismi | Mycobacterium tuberculosis (strain ATCC 25618 / H37Rv) |
Taxonomic identifieri | 83332 [NCBI] |
Taxonomic lineagei | Bacteria › Actinobacteria › Corynebacteriales › Mycobacteriaceae › Mycobacterium › Mycobacterium tuberculosis complex › |
Proteomesi |
|
Organism-specific databases
TubercuListi | Rv1079 |
Subcellular locationi
- Cytoplasm By similarity
GO - Cellular componenti
- cytoplasm Source: GO_Central
- cytosol Source: Reactome
- plasma membrane Source: MTBBASE
Keywords - Cellular componenti
CytoplasmPTM / Processingi
Molecule processing
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
ChainiPRO_0000114762 | 1 – 388 | Cystathionine gamma-synthaseAdd BLAST | 388 |
Amino acid modifications
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
Modified residuei | 208 | N6-(pyridoxal phosphate)lysineCurated | 1 |
Proteomic databases
PaxDbi | P9WGB7 |
Interactioni
Subunit structurei
Homotetramer.
1 PublicationProtein-protein interaction databases
STRINGi | 83332.Rv1079 |
Family & Domainsi
Sequence similaritiesi
Belongs to the trans-sulfuration enzymes family.Curated
Phylogenomic databases
eggNOGi | ENOG4105C28 Bacteria COG0626 LUCA |
KOi | K01739 |
OMAi | HPGRMTH |
PhylomeDBi | P9WGB7 |
Family and domain databases
CDDi | cd00614 CGS_like, 1 hit |
Gene3Di | 3.40.640.10, 1 hit 3.90.1150.10, 1 hit |
InterProi | View protein in InterPro IPR000277 Cys/Met-Metab_PyrdxlP-dep_enz IPR015424 PyrdxlP-dep_Trfase IPR015422 PyrdxlP-dep_Trfase_dom1 IPR015421 PyrdxlP-dep_Trfase_major |
PANTHERi | PTHR11808 PTHR11808, 1 hit |
Pfami | View protein in Pfam PF01053 Cys_Met_Meta_PP, 1 hit |
PIRSFi | PIRSF001434 CGS, 1 hit |
SUPFAMi | SSF53383 SSF53383, 1 hit |
PROSITEi | View protein in PROSITE PS00868 CYS_MET_METAB_PP, 1 hit |
i Sequence
Sequence statusi: Complete.
P9WGB7-1 [UniParc]FASTAAdd to basket
10 20 30 40 50
MSEDRTGHQG ISGPATRAIH AGYRPDPATG AVNVPIYASS TFAQDGVGGL
60 70 80 90 100
RGGFEYARTG NPTRAALEAS LAAVEEGAFA RAFSSGMAAT DCALRAMLRP
110 120 130 140 150
GDHVVIPDDA YGGTFRLIDK VFTRWDVQYT PVRLADLDAV GAAITPRTRL
160 170 180 190 200
IWVETPTNPL LSIADITAIA ELGTDRSAKV LVDNTFASPA LQQPLRLGAD
210 220 230 240 250
VVLHSTTKYI GGHSDVVGGA LVTNDEELDE EFAFLQNGAG AVPGPFDAYL
260 270 280 290 300
TMRGLKTLVL RMQRHSENAC AVAEFLADHP SVSSVLYPGL PSHPGHEIAA
310 320 330 340 350
RQMRGFGGMV SVRMRAGRRA AQDLCAKTRV FILAESLGGV ESLIEHPSAM
360 370 380
THASTAGSQL EVPDDLVRLS VGIEDIADLL GDLEQALG
Sequence databases
Select the link destinations: EMBLi GenBanki DDBJi Links Updated | AL123456 Genomic DNA Translation: CCP43830.1 |
PIRi | E70894 |
RefSeqi | NP_215595.1, NC_000962.3 WP_003405736.1, NZ_NVQJ01000080.1 |
Genome annotation databases
EnsemblBacteriai | CCP43830; CCP43830; Rv1079 |
GeneIDi | 887103 |
KEGGi | mtu:Rv1079 mtv:RVBD_1079 |
Similar proteinsi
Cross-referencesi
Sequence databases
Select the link destinations: EMBLi GenBanki DDBJi Links Updated | AL123456 Genomic DNA Translation: CCP43830.1 |
PIRi | E70894 |
RefSeqi | NP_215595.1, NC_000962.3 WP_003405736.1, NZ_NVQJ01000080.1 |
3D structure databases
SMRi | P9WGB7 |
ModBasei | Search... |
Protein-protein interaction databases
STRINGi | 83332.Rv1079 |
Proteomic databases
PaxDbi | P9WGB7 |
Genome annotation databases
EnsemblBacteriai | CCP43830; CCP43830; Rv1079 |
GeneIDi | 887103 |
KEGGi | mtu:Rv1079 mtv:RVBD_1079 |
Organism-specific databases
TubercuListi | Rv1079 |
Phylogenomic databases
eggNOGi | ENOG4105C28 Bacteria COG0626 LUCA |
KOi | K01739 |
OMAi | HPGRMTH |
PhylomeDBi | P9WGB7 |
Enzyme and pathway databases
UniPathwayi | UPA00051;UER00077 |
BioCyci | MTBH37RV:G185E-5241-MONOMER |
Reactomei | R-MTU-937250 Sulfur amino acid metabolism |
Family and domain databases
CDDi | cd00614 CGS_like, 1 hit |
Gene3Di | 3.40.640.10, 1 hit 3.90.1150.10, 1 hit |
InterProi | View protein in InterPro IPR000277 Cys/Met-Metab_PyrdxlP-dep_enz IPR015424 PyrdxlP-dep_Trfase IPR015422 PyrdxlP-dep_Trfase_dom1 IPR015421 PyrdxlP-dep_Trfase_major |
PANTHERi | PTHR11808 PTHR11808, 1 hit |
Pfami | View protein in Pfam PF01053 Cys_Met_Meta_PP, 1 hit |
PIRSFi | PIRSF001434 CGS, 1 hit |
SUPFAMi | SSF53383 SSF53383, 1 hit |
PROSITEi | View protein in PROSITE PS00868 CYS_MET_METAB_PP, 1 hit |
ProtoNeti | Search... |
MobiDBi | Search... |
Entry informationi
Entry namei | METB_MYCTU | |
Accessioni | P9WGB7Primary (citable) accession number: P9WGB7 Secondary accession number(s): L0T5M9, O53427, P66875 | |
Entry historyi | Integrated into UniProtKB/Swiss-Prot: | April 16, 2014 |
Last sequence update: | April 16, 2014 | |
Last modified: | September 18, 2019 | |
This is version 30 of the entry and version 1 of the sequence. See complete history. | ||
Entry statusi | Reviewed (UniProtKB/Swiss-Prot) | |
Annotation program | Prokaryotic Protein Annotation Program |
Miscellaneousi
Keywords - Technical termi
Complete proteome, Reference proteomeDocuments
- SIMILARITY comments
Index of protein domains and families - Mycobacterium tuberculosis strains ATCC 25618 / H37Rv and CDC 1551 / Oshkosh
Mycobacterium tuberculosis strains ATCC 25618 / H37Rv and CDC 1551 / Oshkosh: entries and gene names - PATHWAY comments
Index of metabolic and biosynthesis pathways