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Protein

Threonine synthase

Gene

thrC

Organism
Bacillus halodurans (strain ATCC BAA-125 / DSM 18197 / FERM 7344 / JCM 9153 / C-125)
Status
Reviewed-Annotation score: Annotation score: 3 out of 5-Protein inferred from homologyi

Functioni

Catalyzes the gamma-elimination of phosphate from L-phosphohomoserine and the beta-addition of water to produce L-threonine.By similarity

Catalytic activityi

O-phospho-L-homoserine + H2O = L-threonine + phosphate.

Cofactori

Pathwayi: L-threonine biosynthesis

This protein is involved in step 5 of the subpathway that synthesizes L-threonine from L-aspartate.
Proteins known to be involved in the 5 steps of the subpathway in this organism are:
  1. Aspartokinase (BH1500), Aspartokinase (dapG), Aspartokinase (lysC)
  2. Aspartate-semialdehyde dehydrogenase (asd)
  3. Homoserine dehydrogenase (BH1253), Homoserine dehydrogenase (BH1737), Homoserine dehydrogenase (hom)
  4. Homoserine kinase (thrB)
  5. Threonine synthase (thrC)
This subpathway is part of the pathway L-threonine biosynthesis, which is itself part of Amino-acid biosynthesis.
View all proteins of this organism that are known to be involved in the subpathway that synthesizes L-threonine from L-aspartate, the pathway L-threonine biosynthesis and in Amino-acid biosynthesis.

Sites

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Binding sitei87Pyridoxal phosphateBy similarity1
Binding sitei316Pyridoxal phosphateBy similarity1

GO - Molecular functioni

GO - Biological processi

Complete GO annotation...

Keywords - Molecular functioni

Lyase

Keywords - Biological processi

Amino-acid biosynthesis, Threonine biosynthesis

Keywords - Ligandi

Pyridoxal phosphate

Enzyme and pathway databases

UniPathwayiUPA00050; UER00065.

Names & Taxonomyi

Protein namesi
Recommended name:
Threonine synthase (EC:4.2.3.1)
Short name:
TS
Gene namesi
Name:thrC
Ordered Locus Names:BH3421
OrganismiBacillus halodurans (strain ATCC BAA-125 / DSM 18197 / FERM 7344 / JCM 9153 / C-125)
Taxonomic identifieri272558 [NCBI]
Taxonomic lineageiBacteriaFirmicutesBacilliBacillalesBacillaceaeBacillus
Proteomesi
  • UP000001258 Componenti: Chromosome

PTM / Processingi

Molecule processing

Feature keyPosition(s)DescriptionActionsGraphical viewLength
ChainiPRO_00001856241 – 354Threonine synthaseAdd BLAST354

Amino acid modifications

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Modified residuei61N6-(pyridoxal phosphate)lysineBy similarity1

Interactioni

Protein-protein interaction databases

STRINGi272558.BH3421.

Structurei

3D structure databases

ProteinModelPortaliQ9K7E3.
ModBaseiSearch...
MobiDBiSearch...

Family & Domainsi

Region

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Regioni187 – 191Pyridoxal phosphate bindingBy similarity5

Sequence similaritiesi

Belongs to the threonine synthase family.Curated

Phylogenomic databases

eggNOGiENOG4108IYI. Bacteria.
COG0498. LUCA.
HOGENOMiHOG000076503.
KOiK01733.
OMAiKAKEANC.
OrthoDBiPOG091H02IR.

Family and domain databases

InterProiIPR000634. Ser/Thr_deHydtase_PyrdxlP-BS.
IPR004450. Thr_synthase-like.
IPR026260. Thr_Synthase_bac/arc.
IPR001926. TrpB-like_PLP-dep.
[Graphical view]
PfamiPF00291. PALP. 1 hit.
[Graphical view]
PIRSFiPIRSF038945. Thr_synthase. 1 hit.
SUPFAMiSSF53686. SSF53686. 1 hit.
TIGRFAMsiTIGR00260. thrC. 1 hit.
PROSITEiPS00165. DEHYDRATASE_SER_THR. 1 hit.
[Graphical view]

Sequencei

Sequence statusi: Complete.

Q9K7E3-1 [UniParc]FASTAAdd to basket

« Hide

        10         20         30         40         50
MSQWRGLLQE YKEFLPVTEE TPLLTLGEGN TPLIPLENLS KEWGVKAYVK
60 70 80 90 100
YEGANPTGSF KDRGMVMAVA KAKEEGSRTI ICASTGNTSA AAAAYGARAG
110 120 130 140 150
LRCIVVIPEG KIALGKLAQA VMYGAEVLEI KGNFDHALDI VRSISEKEPI
160 170 180 190 200
TLVNSVNPYR IEGQKTSAFE ICDALGQAPD VLAIPVGNAG NITAYWKGFK
210 220 230 240 250
EYHEKKGTGL PQMRGFEAEG AAAIVRNQVI EEPETIATAI RIGNPASWTY
260 270 280 290 300
AVEAAAESNG KIDEVTDEEI LAAYQLLAQK EGVFAEPASC ASIAGLRKQI
310 320 330 340 350
ASGEIKKGST VVCVLTGNGL KDPNTAMSTI DVNPAVLPND EQAFLDHIKG

GVPK
Length:354
Mass (Da):37,665
Last modified:October 1, 2000 - v1
Checksum:iD25EABAB4952C691
GO

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
BA000004 Genomic DNA. Translation: BAB07140.1.
PIRiE84077.
RefSeqiWP_010899559.1. NC_002570.2.

Genome annotation databases

EnsemblBacteriaiBAB07140; BAB07140; BAB07140.
KEGGibha:BH3421.
PATRICi18944114. VBIBacHal18977_3555.

Cross-referencesi

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
BA000004 Genomic DNA. Translation: BAB07140.1.
PIRiE84077.
RefSeqiWP_010899559.1. NC_002570.2.

3D structure databases

ProteinModelPortaliQ9K7E3.
ModBaseiSearch...
MobiDBiSearch...

Protein-protein interaction databases

STRINGi272558.BH3421.

Protocols and materials databases

Structural Biology KnowledgebaseSearch...

Genome annotation databases

EnsemblBacteriaiBAB07140; BAB07140; BAB07140.
KEGGibha:BH3421.
PATRICi18944114. VBIBacHal18977_3555.

Phylogenomic databases

eggNOGiENOG4108IYI. Bacteria.
COG0498. LUCA.
HOGENOMiHOG000076503.
KOiK01733.
OMAiKAKEANC.
OrthoDBiPOG091H02IR.

Enzyme and pathway databases

UniPathwayiUPA00050; UER00065.

Family and domain databases

InterProiIPR000634. Ser/Thr_deHydtase_PyrdxlP-BS.
IPR004450. Thr_synthase-like.
IPR026260. Thr_Synthase_bac/arc.
IPR001926. TrpB-like_PLP-dep.
[Graphical view]
PfamiPF00291. PALP. 1 hit.
[Graphical view]
PIRSFiPIRSF038945. Thr_synthase. 1 hit.
SUPFAMiSSF53686. SSF53686. 1 hit.
TIGRFAMsiTIGR00260. thrC. 1 hit.
PROSITEiPS00165. DEHYDRATASE_SER_THR. 1 hit.
[Graphical view]
ProtoNetiSearch...

Entry informationi

Entry nameiTHRC_BACHD
AccessioniPrimary (citable) accession number: Q9K7E3
Entry historyi
Integrated into UniProtKB/Swiss-Prot: July 11, 2001
Last sequence update: October 1, 2000
Last modified: November 2, 2016
This is version 96 of the entry and version 1 of the sequence. [Complete history]
Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programProkaryotic Protein Annotation Program

Miscellaneousi

Keywords - Technical termi

Complete proteome, Reference proteome

Documents

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

Similar proteinsi

Links to similar proteins from the UniProt Reference Clusters (UniRef) at 100%, 90% and 50% sequence identity:
100%UniRef100 combines identical sequences and sub-fragments with 11 or more residues from any organism into one UniRef entry.
90%UniRef90 is built by clustering UniRef100 sequences that have at least 90% sequence identity to, and 80% overlap with, the longest sequence (a.k.a seed sequence).
50%UniRef50 is built by clustering UniRef90 seed sequences that have at least 50% sequence identity to, and 80% overlap with, the longest sequence in the cluster.