UniProtKB - Q65KJ7 (MTNBX_BACLD)
Protein
Bifunctional enzyme MtnB/MtnX
Gene
mtnB/mtnX
Organism
Bacillus licheniformis (strain ATCC 14580 / DSM 13 / JCM 2505 / NBRC 12200 / NCIMB 9375 / NRRL NRS-1264 / Gibson 46)
Status
Functioni
Catalyzes the dehydration of methylthioribulose-1-phosphate (MTRu-1-P) into 2,3-diketo-5-methylthiopentyl-1-phosphate (DK-MTP-1-P).By similarity
Dephosphorylates 2-hydroxy-3-keto-5-methylthiopentenyl-1-phosphate (HK-MTPenyl-1-P) yielding 1,2-dihydroxy-3-keto-5-methylthiopentene (DHK-MTPene).By similarity
Catalytic activityi
- EC:4.2.1.109
- 2-hydroxy-5-methylsulfanyl-3-oxopent-1-enyl phosphate + H2O = 1,2-dihydroxy-5-(methylsulfanyl)pent-1-en-3-one + phosphateEC:3.1.3.87
Cofactori
Zn2+By similarityNote: Binds 1 zinc ion per subunit.By similarity
: L-methionine biosynthesis via salvage pathway Pathwayi
This protein is involved in step 2 and 4 of the subpathway that synthesizes L-methionine from S-methyl-5-thio-alpha-D-ribose 1-phosphate.Proteins known to be involved in the 6 steps of the subpathway in this organism are:
- Methylthioribose-1-phosphate isomerase (mtnA)
- Bifunctional enzyme MtnB/MtnX (mtnB/mtnX)
- 2,3-diketo-5-methylthiopentyl-1-phosphate enolase (mtnW)
- Bifunctional enzyme MtnB/MtnX (mtnB/mtnX)
- Acireductone dioxygenase (mtnD)
- no protein annotated in this organism
View all proteins of this organism that are known to be involved in the subpathway that synthesizes L-methionine from S-methyl-5-thio-alpha-D-ribose 1-phosphate, the pathway L-methionine biosynthesis via salvage pathway and in Amino-acid biosynthesis.
Sites
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
Metal bindingi | 317 | ZincBy similarity | 1 | |
Metal bindingi | 319 | ZincBy similarity | 1 |
GO - Molecular functioni
- 2-hydroxy-3-keto-5-methylthiopentenyl-1-phosphate phosphatase activity Source: UniProtKB-UniRule
- methylthioribulose 1-phosphate dehydratase activity Source: UniProtKB-UniRule
- zinc ion binding Source: UniProtKB-UniRule
GO - Biological processi
- L-methionine salvage from methylthioadenosine Source: UniProtKB-UniPathway
- L-methionine salvage from S-adenosylmethionine Source: UniProtKB-UniRule
Keywordsi
Molecular function | Hydrolase, Lyase, Multifunctional enzyme |
Biological process | Amino-acid biosynthesis, Methionine biosynthesis |
Ligand | Metal-binding, Zinc |
Enzyme and pathway databases
BioCyci | BLIC279010:BLI_RS07520-MONOMER |
UniPathwayi | UPA00904;UER00875 UPA00904;UER00877 |
Names & Taxonomyi
Protein namesi | |
Gene namesi | Name:mtnB/mtnX Ordered Locus Names:BLi01516, BL03541 |
Organismi | Bacillus licheniformis (strain ATCC 14580 / DSM 13 / JCM 2505 / NBRC 12200 / NCIMB 9375 / NRRL NRS-1264 / Gibson 46) |
Taxonomic identifieri | 279010 [NCBI] |
Taxonomic lineagei | Bacteria › Firmicutes › Bacilli › Bacillales › Bacillaceae › Bacillus › |
Proteomesi |
|
PTM / Processingi
Molecule processing
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
ChainiPRO_0000358313 | 1 – 427 | Bifunctional enzyme MtnB/MtnXAdd BLAST | 427 |
Proteomic databases
PRIDEi | Q65KJ7 |
Interactioni
Subunit structurei
Homotetramer.
By similarityProtein-protein interaction databases
STRINGi | 279010.BL03541 |
Family & Domainsi
Region
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
Regioni | 1 – 221 | HK-MTPenyl-1-P phosphataseAdd BLAST | 221 | |
Regioni | 222 – 427 | MTRu-1-P dehydrataseAdd BLAST | 206 |
Sequence similaritiesi
Phylogenomic databases
eggNOGi | COG0235, Bacteria COG4359, Bacteria |
HOGENOMi | CLU_641990_0_0_9 |
OrthoDBi | 1755462at2 |
Family and domain databases
Gene3Di | 3.40.225.10, 1 hit 3.40.50.1000, 1 hit |
HAMAPi | MF_01677, Salvage_MtnB, 1 hit MF_01680, Salvage_MtnX, 1 hit |
InterProi | View protein in InterPro IPR001303, Aldolase_II/adducin_N IPR036409, Aldolase_II/adducin_N_sf IPR036412, HAD-like_sf IPR017718, HAD-SF_hydro_IB_MtnX IPR023214, HAD_sf IPR017714, MethylthioRu-1-P_deHdtase_MtnB IPR006384, PyrdxlP_Pase-rel |
Pfami | View protein in Pfam PF00596, Aldolase_II, 1 hit |
SMARTi | View protein in SMART SM01007, Aldolase_II, 1 hit |
SUPFAMi | SSF53639, SSF53639, 1 hit SSF56784, SSF56784, 1 hit |
TIGRFAMsi | TIGR01489, DKMTPPase-SF, 1 hit TIGR03328, salvage_mtnB, 1 hit TIGR03333, salvage_mtnX, 1 hit |
i Sequence
Sequence statusi: Complete.
Q65KJ7-1 [UniParc]FASTAAdd to basket
10 20 30 40 50
MRKPLIICDF DGTITTNDNI ISIMKQFAPE EWTALKDGVL SKDISIRDGV
60 70 80 90 100
GRMFNLLPAS LKEDITAYVL KQAETRPGFK EFVSFLDEKG LPFYVVSGGM
110 120 130 140 150
DFFVYPLLEG IVGKDRIYCN EAAFTSRNIE IRWPYPCDGG CGNDCGCCKP
160 170 180 190 200
SIIRRLKGRD DFVVMIGDSV TDVEAAKCSD LCIARDYLLR ECEELGLKHA
210 220 230 240 250
AFGDFRDVRR ILEETAEVKE WMSEQKRQEL AEVKKELAER DWFPATSGNL
260 270 280 290 300
SIKVSEDPLR FLITASGKDK RKETEEDFLL ADEEGRPAET GHALKPSAET
310 320 330 340 350
LLHTYVYQHT NAGCCLHVHT VDNNVISELY AKEKQVTFRG QEIIKALGLW
360 370 380 390 400
EEHAEVTVPI IENSAHIPDL AADFAGHLSG DSGAVLIRSH GITVWGKTAF
410 420
EAKRMLEAYE FLFSWHLKLK ALQAYHV
Sequence databases
Select the link destinations: EMBLi GenBanki DDBJi Links Updated | CP000002 Genomic DNA Translation: AAU23063.1 AE017333 Genomic DNA Translation: AAU40417.1 |
RefSeqi | WP_003181077.1, NC_006322.1 |
Genome annotation databases
EnsemblBacteriai | AAU23063; AAU23063; BL03541 AAU40417; AAU40417; BLi01516 |
GeneIDi | 3030597 |
KEGGi | bld:BLi01516 bli:BL03541 |
Similar proteinsi
Cross-referencesi
Sequence databases
Select the link destinations: EMBLi GenBanki DDBJi Links Updated | CP000002 Genomic DNA Translation: AAU23063.1 AE017333 Genomic DNA Translation: AAU40417.1 |
RefSeqi | WP_003181077.1, NC_006322.1 |
3D structure databases
SMRi | Q65KJ7 |
ModBasei | Search... |
Protein-protein interaction databases
STRINGi | 279010.BL03541 |
Proteomic databases
PRIDEi | Q65KJ7 |
Genome annotation databases
EnsemblBacteriai | AAU23063; AAU23063; BL03541 AAU40417; AAU40417; BLi01516 |
GeneIDi | 3030597 |
KEGGi | bld:BLi01516 bli:BL03541 |
Phylogenomic databases
eggNOGi | COG0235, Bacteria COG4359, Bacteria |
HOGENOMi | CLU_641990_0_0_9 |
OrthoDBi | 1755462at2 |
Enzyme and pathway databases
UniPathwayi | UPA00904;UER00875 UPA00904;UER00877 |
BioCyci | BLIC279010:BLI_RS07520-MONOMER |
Family and domain databases
Gene3Di | 3.40.225.10, 1 hit 3.40.50.1000, 1 hit |
HAMAPi | MF_01677, Salvage_MtnB, 1 hit MF_01680, Salvage_MtnX, 1 hit |
InterProi | View protein in InterPro IPR001303, Aldolase_II/adducin_N IPR036409, Aldolase_II/adducin_N_sf IPR036412, HAD-like_sf IPR017718, HAD-SF_hydro_IB_MtnX IPR023214, HAD_sf IPR017714, MethylthioRu-1-P_deHdtase_MtnB IPR006384, PyrdxlP_Pase-rel |
Pfami | View protein in Pfam PF00596, Aldolase_II, 1 hit |
SMARTi | View protein in SMART SM01007, Aldolase_II, 1 hit |
SUPFAMi | SSF53639, SSF53639, 1 hit SSF56784, SSF56784, 1 hit |
TIGRFAMsi | TIGR01489, DKMTPPase-SF, 1 hit TIGR03328, salvage_mtnB, 1 hit TIGR03333, salvage_mtnX, 1 hit |
ProtoNeti | Search... |
MobiDBi | Search... |
Entry informationi
Entry namei | MTNBX_BACLD | |
Accessioni | Q65KJ7Primary (citable) accession number: Q65KJ7 Secondary accession number(s): Q62VZ5 | |
Entry historyi | Integrated into UniProtKB/Swiss-Prot: | December 16, 2008 |
Last sequence update: | October 25, 2004 | |
Last modified: | December 2, 2020 | |
This is version 106 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
Reference proteomeDocuments
- PATHWAY comments
Index of metabolic and biosynthesis pathways - SIMILARITY comments
Index of protein domains and families