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Protein

Galactose-6-phosphate isomerase subunit LacB

Gene

lacB

Organism
Streptococcus pneumoniae serotype 19F (strain G54)
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 LacB (lacB), Galactose-6-phosphate isomerase subunit LacA (lacA)
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 LacBUniRule annotation (EC:5.3.1.26UniRule annotation)
Gene namesi
Name:lacBUniRule annotation
Ordered Locus Names:SPG_1087
OrganismiStreptococcus pneumoniae serotype 19F (strain G54)
Taxonomic identifieri512566 [NCBI]
Taxonomic lineageiBacteriaFirmicutesBacilliLactobacillalesStreptococcaceaeStreptococcus

PTM / Processingi

Molecule processing

Feature keyPosition(s)DescriptionActionsGraphical viewLength
ChainiPRO_10001470861 – 171Galactose-6-phosphate isomerase subunit LacBAdd BLAST171

Interactioni

Subunit structurei

Heteromultimeric protein consisting of LacA and LacB.UniRule annotation

Structurei

3D structure databases

ProteinModelPortaliB5E4T1.
SMRiB5E4T1.
ModBaseiSearch...
MobiDBiSearch...

Family & Domainsi

Sequence similaritiesi

Belongs to the LacAB/RpiB family.UniRule annotation

Phylogenomic databases

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.

B5E4T1-1 [UniParc]FASTAAdd to basket

« Hide

        10         20         30         40         50
MRIAIGCDHI VTDEKMAVSE FLKSKGYEVI DFGTYDHTRT HYPIFGKKVG
60 70 80 90 100
EAVTSGQADL GVCICGTGVG INNAVNKVPG VRSALVRDMT TALYAKEQLN
110 120 130 140 150
ANVIGFGGKI TGELLMCDII EAFIHAEYKP TEENKKLIAK IEHVESHNAQ
160 170
QTDANFFTEF LEKWDRGEYH D
Length:171
Mass (Da):18,958
Last modified:October 14, 2008 - v1
Checksum:i47827C07E7C72C39
GO

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
CP001015 Genomic DNA. Translation: ACF55132.1.
RefSeqiWP_001216918.1. NC_011072.1.

Genome annotation databases

EnsemblBacteriaiACF55132; ACF55132; SPG_1087.
KEGGispx:SPG_1087.
PATRICi19687789. VBIStrPne77426_1146.

Cross-referencesi

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
CP001015 Genomic DNA. Translation: ACF55132.1.
RefSeqiWP_001216918.1. NC_011072.1.

3D structure databases

ProteinModelPortaliB5E4T1.
SMRiB5E4T1.
ModBaseiSearch...
MobiDBiSearch...

Protocols and materials databases

Structural Biology KnowledgebaseSearch...

Genome annotation databases

EnsemblBacteriaiACF55132; ACF55132; SPG_1087.
KEGGispx:SPG_1087.
PATRICi19687789. VBIStrPne77426_1146.

Phylogenomic databases

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 nameiLACB_STRP4
AccessioniPrimary (citable) accession number: B5E4T1
Entry historyi
Integrated into UniProtKB/Swiss-Prot: April 14, 2009
Last sequence update: October 14, 2008
Last modified: November 2, 2016
This is version 47 of the entry and version 1 of the sequence. [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.