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Protein

Tryptophan synthase beta chain

Gene

trpB

Organism
Salmonella paratyphi A (strain ATCC 9150 / SARB42)
Status
Reviewed-Annotation score: -Protein inferred from homologyi

Functioni

The beta subunit is responsible for the synthesis of L-tryptophan from indole and L-serine.UniRule annotation

Catalytic activityi

L-serine + 1-C-(indol-3-yl)glycerol 3-phosphate = L-tryptophan + D-glyceraldehyde 3-phosphate + H2O.UniRule annotation

Cofactori

pyridoxal 5'-phosphateUniRule annotation

Pathwayi: L-tryptophan biosynthesis

This protein is involved in step 5 of the subpathway that synthesizes L-tryptophan from chorismate.UniRule annotation
Proteins known to be involved in the 5 steps of the subpathway in this organism are:
  1. Anthranilate synthase component 1 (trpE)
  2. Anthranilate phosphoribosyltransferase (trpD)
  3. Indole-3-glycerol phosphate synthase (trpC)
  4. Indole-3-glycerol phosphate synthase (trpC)
  5. Tryptophan synthase beta chain (trpB), Tryptophan synthase alpha chain (trpA)
This subpathway is part of the pathway L-tryptophan 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-tryptophan from chorismate, the pathway L-tryptophan biosynthesis and in Amino-acid biosynthesis.

GO - Molecular functioni

Keywordsi

Molecular functionLyase
Biological processAmino-acid biosynthesis, Aromatic amino acid biosynthesis, Tryptophan biosynthesis
LigandPyridoxal phosphate

Enzyme and pathway databases

UniPathwayiUPA00035; UER00044

Names & Taxonomyi

Protein namesi
Recommended name:
Tryptophan synthase beta chainUniRule annotation (EC:4.2.1.20UniRule annotation)
Gene namesi
Name:trpBUniRule annotation
Ordered Locus Names:SPA1151
OrganismiSalmonella paratyphi A (strain ATCC 9150 / SARB42)
Taxonomic identifieri295319 [NCBI]
Taxonomic lineageiBacteriaProteobacteriaGammaproteobacteriaEnterobacteralesEnterobacteriaceaeSalmonella
Proteomesi
  • UP000008185 Componenti: Chromosome

PTM / Processingi

Molecule processing

Feature keyPosition(s)DescriptionActionsGraphical viewLength
ChainiPRO_10000183841 – 397Tryptophan synthase beta chainAdd BLAST397

Amino acid modifications

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Modified residuei87N6-(pyridoxal phosphate)lysineUniRule annotation1

Interactioni

Subunit structurei

Tetramer of two alpha and two beta chains.UniRule annotation

Structurei

3D structure databases

ProteinModelPortaliQ5PD17
SMRiQ5PD17
ModBaseiSearch...
MobiDBiSearch...

Family & Domainsi

Sequence similaritiesi

Belongs to the TrpB family.UniRule annotation

Phylogenomic databases

HOGENOMiHOG000161710
KOiK01696
OMAiHGMKSYF

Family and domain databases

CDDicd06446 Trp-synth_B, 1 hit
HAMAPiMF_00133 Trp_synth_beta, 1 hit
InterProiView protein in InterPro
IPR001926 PLP-dep
IPR006653 Trp_synth_b_CS
IPR006654 Trp_synth_beta
IPR023026 Trp_synth_beta/beta-like
IPR036052 Trypto_synt_PLP_dependent
PANTHERiPTHR42882 PTHR42882, 1 hit
PfamiView protein in Pfam
PF00291 PALP, 1 hit
PIRSFiPIRSF001413 Trp_syn_beta, 1 hit
SUPFAMiSSF53686 SSF53686, 1 hit
TIGRFAMsiTIGR00263 trpB, 1 hit
PROSITEiView protein in PROSITE
PS00168 TRP_SYNTHASE_BETA, 1 hit

Sequencei

Sequence statusi: Complete.

Q5PD17-1 [UniParc]FASTAAdd to basket

« Hide

        10         20         30         40         50
MTTLLNPYFG EFGGMYVPQI LMPALNQLEE AFVSAQKDPE FQAQFADLLK
60 70 80 90 100
NYAGRPTALT KCQNITAGTR TTLYLKREDL LHGGAHKTNQ VLGQALLAKR
110 120 130 140 150
MGKSEIIAET GAGQHGVASA LASALLGLKC RIYMGAKDVE RQSPNVFRMR
160 170 180 190 200
LMGAEVIPVH SGSATLKDAC NEALRDWSGS YETAHYMLGT AAGPHPYPTI
210 220 230 240 250
VREFQRMIGE ETKAQILDKE GRLPDAVIAC VGGGSNAIGM FADFINDTSV
260 270 280 290 300
GLIGVEPGGH GIETGEHGAP LKHGRVGIYF GMKAPMMQTA DGQIEESYSI
310 320 330 340 350
SAGLDFPSVG PQHAYLNSIG RADYVSITDD EALEAFKTLC RHEGIIPALE
360 370 380 390
SSHALAHALK MMREQPEKEQ LLVVNLSGRG DKDIFTVHDI LKARGEI
Length:397
Mass (Da):42,868
Last modified:January 4, 2005 - v1
Checksum:i73D210F5C6F2FEBD
GO

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
CP000026 Genomic DNA Translation: AAV77112.1
RefSeqiWP_000209485.1, NC_006511.1

Genome annotation databases

EnsemblBacteriaiAAV77112; AAV77112; SPA1151
KEGGispt:SPA1151

Similar proteinsi

Entry informationi

Entry nameiTRPB_SALPA
AccessioniPrimary (citable) accession number: Q5PD17
Entry historyiIntegrated into UniProtKB/Swiss-Prot: January 15, 2008
Last sequence update: January 4, 2005
Last modified: April 25, 2018
This is version 80 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

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