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Protein

Trehalose-6-phosphate synthase

Gene

otsA

Organism
Salmonella paratyphi B (strain ATCC BAA-1250 / SPB7)
Status
Reviewed-Annotation score: Annotation score: 3 out of 5-Protein inferred from homologyi

Functioni

Probably involved in the osmoprotection via the biosynthesis of trehalose. Catalyzes the transfer of glucose from UDP-glucose (UDP-Glc) to D-glucose 6-phosphate (Glc-6-P) to form trehalose-6-phosphate. Acts with retention of the anomeric configuration of the UDP-sugar donor.By similarity

Catalytic activityi

UDP-glucose + D-glucose 6-phosphate = UDP + alpha,alpha-trehalose 6-phosphate.By similarity

Pathwayi: trehalose biosynthesis

This protein is involved in the pathway trehalose biosynthesis, which is part of Glycan biosynthesis.By similarity
View all proteins of this organism that are known to be involved in the pathway trehalose biosynthesis and in Glycan biosynthesis.

Sites

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Binding sitei10D-glucose 6-phosphateBy similarity1
Binding sitei76D-glucose 6-phosphateBy similarity1
Sitei85Involved in alpha anomer selectivityBy similarity1
Binding sitei130D-glucose 6-phosphateBy similarity1
Sitei155Involved in alpha anomer selectivityBy similarity1
Binding sitei262UDP-glucoseBy similarity1
Binding sitei267UDP-glucoseBy similarity1
Binding sitei300D-glucose 6-phosphateBy similarity1
Binding sitei339UDP-glucose; via amide nitrogen and carbonyl oxygenBy similarity1

GO - Molecular functioni

GO - Biological processi

Keywordsi

Molecular functionGlycosyltransferase, Transferase

Enzyme and pathway databases

UniPathwayiUPA00299.

Protein family/group databases

CAZyiGT20. Glycosyltransferase Family 20.

Names & Taxonomyi

Protein namesi
Recommended name:
Trehalose-6-phosphate synthaseBy similarity (EC:2.4.1.15By similarity)
Short name:
TPSBy similarity
Alternative name(s):
Alpha,alpha-trehalose-phosphate synthase [UDP-forming]By similarity
Osmoregulatory trehalose synthesis protein ABy similarity
Short name:
OtsABy similarity
UDP-glucose-glucosephosphate glucosyltransferaseBy similarity
Gene namesi
Name:otsABy similarity
Ordered Locus Names:SPAB_01230
OrganismiSalmonella paratyphi B (strain ATCC BAA-1250 / SPB7)
Taxonomic identifieri1016998 [NCBI]
Taxonomic lineageiBacteriaProteobacteriaGammaproteobacteriaEnterobacteralesEnterobacteriaceaeSalmonella

PTM / Processingi

Molecule processing

Feature keyPosition(s)DescriptionActionsGraphical viewLength
ChainiPRO_00003489181 – 473Trehalose-6-phosphate synthaseAdd BLAST473

Interactioni

Subunit structurei

Homotetramer.By similarity

Structurei

3D structure databases

ProteinModelPortaliA9MU86.
SMRiA9MU86.
ModBaseiSearch...
MobiDBiSearch...

Family & Domainsi

Region

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Regioni21 – 22UDP-glucose bindingBy similarity2
Regioni365 – 369UDP-glucose bindingBy similarity5

Sequence similaritiesi

Belongs to the glycosyltransferase 20 family.By similarity

Phylogenomic databases

HOGENOMiHOG000191478.
KOiK00697.
OMAiIEFMPIH.

Family and domain databases

CDDicd03788. GT1_TPS. 1 hit.
InterProiView protein in InterPro
IPR001830. Glyco_trans_20.
IPR012766. Trehalose_OtsA.
PfamiView protein in Pfam
PF00982. Glyco_transf_20. 1 hit.
TIGRFAMsiTIGR02400. trehalose_OtsA. 1 hit.

Sequencei

Sequence statusi: Complete.

A9MU86-1 [UniParc]FASTAAdd to basket

« Hide

        10         20         30         40         50
MSRLVVVSNR IAPPDNKGGA GGLAVGVLGA LKAAGGLWFG WSGETGNEDE
60 70 80 90 100
PLKKVTKGNI TWASFNLSEQ DYEDYYCQFS NAVLWPAFHY RLDLVQFQRP
110 120 130 140 150
AWEGYMRVNA LLADKLLPLI KENDIIWVHD YHLLPFASEL RKRGVNNRIG
160 170 180 190 200
FFLHIPFPTP EIFNALPPHD ELLEQLCDFD LLGFQTENDR LAFLDSLSSQ
210 220 230 240 250
TRVTTRSGKQ HIAWGKDFQT EVYPIGIEPD EIALQAAGPL PPKLAQLKAE
260 270 280 290 300
LKNVKNIFSV ERLDYSKGLP ERFLAYEALL ENYPQHRGKI RYTQIAPTSR
310 320 330 340 350
GEVQAYQDIR HQLETEAGRI NGKYGQLGWT PLYYLNQHFD RKLLMKIFRY
360 370 380 390 400
SDVGLVTPLR DGMNLVAKEF VAAQDPANPG VLVLSQFAGA ANELTSALIV
410 420 430 440 450
NPYDRDDVAA ALNRALTMPL AERISRHAEM LDVIVKNDIN RWQERFIHDL
460 470
KEVTPRSPER QQQNNVATFP KLA
Length:473
Mass (Da):53,581
Last modified:February 5, 2008 - v1
Checksum:iE85B3F0AE58E144A
GO

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
CP000886 Genomic DNA. Translation: ABX66642.1.
RefSeqiWP_000089042.1. NC_010102.1.

Genome annotation databases

EnsemblBacteriaiABX66642; ABX66642; SPAB_01230.
KEGGispq:SPAB_01230.
PATRICifig|1016998.12.peg.1159.

Cross-referencesi

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
CP000886 Genomic DNA. Translation: ABX66642.1.
RefSeqiWP_000089042.1. NC_010102.1.

3D structure databases

ProteinModelPortaliA9MU86.
SMRiA9MU86.
ModBaseiSearch...
MobiDBiSearch...

Protein family/group databases

CAZyiGT20. Glycosyltransferase Family 20.

Protocols and materials databases

Structural Biology KnowledgebaseSearch...

Genome annotation databases

EnsemblBacteriaiABX66642; ABX66642; SPAB_01230.
KEGGispq:SPAB_01230.
PATRICifig|1016998.12.peg.1159.

Phylogenomic databases

HOGENOMiHOG000191478.
KOiK00697.
OMAiIEFMPIH.

Enzyme and pathway databases

UniPathwayiUPA00299.

Family and domain databases

CDDicd03788. GT1_TPS. 1 hit.
InterProiView protein in InterPro
IPR001830. Glyco_trans_20.
IPR012766. Trehalose_OtsA.
PfamiView protein in Pfam
PF00982. Glyco_transf_20. 1 hit.
TIGRFAMsiTIGR02400. trehalose_OtsA. 1 hit.
ProtoNetiSearch...

Entry informationi

Entry nameiOTSA_SALPB
AccessioniPrimary (citable) accession number: A9MU86
Entry historyiIntegrated into UniProtKB/Swiss-Prot: September 2, 2008
Last sequence update: February 5, 2008
Last modified: June 7, 2017
This is version 54 of the entry and version 1 of the sequence. See complete history.
Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programProkaryotic Protein Annotation Program

Miscellaneousi

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.