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Protein

Galactose-6-phosphate isomerase subunit LacB 1

Gene

lacB1

Organism
Streptococcus agalactiae serotype III (strain NEM316)
Status
Reviewed-Annotation score: Annotation score: 2 out of 5-Protein inferred from homologyi

Functioni

Catalytic activityi

D-galactose 6-phosphate = D-tagatose 6-phosphate.UniRule annotation

Pathwayi: D-galactose 6-phosphate degradation

This protein is involved in step 1 of the subpathway that synthesizes D-tagatose 6-phosphate from D-galactose 6-phosphate.UniRule annotation
Proteins known to be involved in this subpathway in this organism are:
  1. Galactose-6-phosphate isomerase subunit LacA 1 (lacA1), Galactose-6-phosphate isomerase subunit LacB 1 (lacB1), Galactose-6-phosphate isomerase subunit LacA 2 (lacA2), Galactose-6-phosphate isomerase subunit LacB 2 (lacB2)
This subpathway is part of the pathway D-galactose 6-phosphate degradation, which is itself part of Carbohydrate metabolism.
View all proteins of this organism that are known to be involved in the subpathway that synthesizes D-tagatose 6-phosphate from D-galactose 6-phosphate, the pathway D-galactose 6-phosphate degradation and in Carbohydrate metabolism.

GO - Molecular functioni

GO - Biological processi

Complete GO annotation...

Keywords - Molecular functioni

Isomerase

Keywords - Biological processi

Lactose metabolism

Enzyme and pathway databases

UniPathwayiUPA00702; UER00714.

Names & Taxonomyi

Protein namesi
Recommended name:
Galactose-6-phosphate isomerase subunit LacB 1UniRule annotation (EC:5.3.1.26UniRule annotation)
Gene namesi
Name:lacB1UniRule annotation
Ordered Locus Names:gbs1335
OrganismiStreptococcus agalactiae serotype III (strain NEM316)
Taxonomic identifieri211110 [NCBI]
Taxonomic lineageiBacteriaFirmicutesBacilliLactobacillalesStreptococcaceaeStreptococcus
Proteomesi
  • UP000000823 Componenti: Chromosome

PTM / Processingi

Molecule processing

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Chaini1 – 171171Galactose-6-phosphate isomerase subunit LacB 1PRO_0000208147Add
BLAST

Interactioni

Subunit structurei

Heteromultimeric protein consisting of LacA and LacB.UniRule annotation

Protein-protein interaction databases

STRINGi211110.gbs1335.

Structurei

3D structure databases

ProteinModelPortaliQ8E4R6.
ModBaseiSearch...
MobiDBiSearch...

Family & Domainsi

Sequence similaritiesi

Belongs to the LacAB/RpiB family.UniRule annotation

Phylogenomic databases

eggNOGiCOG0698. LUCA.
HOGENOMiHOG000226301.
OMAiETHHANQ.

Family and domain databases

Gene3Di3.40.1400.10. 1 hit.
HAMAPiMF_01556. LacB. 1 hit.
InterProiIPR004784. LacB.
IPR003500. RpiB_LacA_LacB.
[Graphical view]
PANTHERiPTHR30345. PTHR30345. 1 hit.
PfamiPF02502. LacAB_rpiB. 1 hit.
[Graphical view]
PIRSFiPIRSF005384. RpiB_LacA_B. 1 hit.
SUPFAMiSSF89623. SSF89623. 1 hit.
TIGRFAMsiTIGR01119. lacB. 1 hit.
TIGR00689. rpiB_lacA_lacB. 1 hit.

Sequencei

Sequence statusi: Complete.

Q8E4R6-1 [UniParc]FASTAAdd to basket

« Hide

        10         20         30         40         50
MKIAIGCDHI VTNEKMAVVD FLKSKGYEVQ DYGTYDHVRT HYPIYGKKVG
60 70 80 90 100
EAVASGKAEL GICICGTGVG INNAVNKVPG IRSALVRDMT SALYAKEELN
110 120 130 140 150
ANVIGFGGKI TGELLMCDII EALLHAEYKP SEENKKLIAK IAHVESKNDN
160 170
QTNPDFFKEF LEKWDRGEYH D
Length:171
Mass (Da):18,939
Last modified:March 1, 2003 - v1
Checksum:iA9AA0856C033E556
GO

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
AL766850 Genomic DNA. Translation: CAD46994.1.
RefSeqiWP_000684126.1. NC_004368.1.

Genome annotation databases

EnsemblBacteriaiCAD46994; CAD46994; CAD46994.
PATRICi19638555. VBIStrAga3577_1366.

Cross-referencesi

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
AL766850 Genomic DNA. Translation: CAD46994.1.
RefSeqiWP_000684126.1. NC_004368.1.

3D structure databases

ProteinModelPortaliQ8E4R6.
ModBaseiSearch...
MobiDBiSearch...

Protein-protein interaction databases

STRINGi211110.gbs1335.

Protocols and materials databases

Structural Biology KnowledgebaseSearch...

Genome annotation databases

EnsemblBacteriaiCAD46994; CAD46994; CAD46994.
PATRICi19638555. VBIStrAga3577_1366.

Phylogenomic databases

eggNOGiCOG0698. LUCA.
HOGENOMiHOG000226301.
OMAiETHHANQ.

Enzyme and pathway databases

UniPathwayiUPA00702; UER00714.

Family and domain databases

Gene3Di3.40.1400.10. 1 hit.
HAMAPiMF_01556. LacB. 1 hit.
InterProiIPR004784. LacB.
IPR003500. RpiB_LacA_LacB.
[Graphical view]
PANTHERiPTHR30345. PTHR30345. 1 hit.
PfamiPF02502. LacAB_rpiB. 1 hit.
[Graphical view]
PIRSFiPIRSF005384. RpiB_LacA_B. 1 hit.
SUPFAMiSSF89623. SSF89623. 1 hit.
TIGRFAMsiTIGR01119. lacB. 1 hit.
TIGR00689. rpiB_lacA_lacB. 1 hit.
ProtoNetiSearch...

Entry informationi

Entry nameiLACB1_STRA3
AccessioniPrimary (citable) accession number: Q8E4R6
Entry historyi
Integrated into UniProtKB/Swiss-Prot: January 10, 2006
Last sequence update: March 1, 2003
Last modified: September 7, 2016
This is version 74 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

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.