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Protein

6-phospho-beta-galactosidase

Gene

lacG

Organism
Streptococcus pyogenes serotype M4 (strain MGAS10750)
Status
Reviewed-Annotation score: Annotation score: 2 out of 5-Protein inferred from homologyi

Functioni

Catalytic activityi

A 6-phospho-beta-D-galactoside + H2O = 6-phospho-D-galactose + an alcohol.UniRule annotation

Pathway:ilactose degradation

This protein is involved in step 1 of the subpathway that synthesizes D-galactose 6-phosphate and beta-D-glucose from lactose 6-phosphate.UniRule annotation
Proteins known to be involved in this subpathway in this organism are:
  1. 6-phospho-beta-galactosidase (lacG)
This subpathway is part of the pathway lactose 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-galactose 6-phosphate and beta-D-glucose from lactose 6-phosphate, the pathway lactose degradation and in Carbohydrate metabolism.

Sites

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Active sitei160 – 1601Proton donorUniRule annotation
Active sitei375 – 3751NucleophileUniRule annotation

GO - Molecular functioni

GO - Biological processi

Complete GO annotation...

Keywords - Molecular functioni

Glycosidase, Hydrolase

Enzyme and pathway databases

BioCyciSPYO370554:GI3S-1804-MONOMER.
UniPathwayiUPA00542; UER00605.

Protein family/group databases

CAZyiGH1. Glycoside Hydrolase Family 1.

Names & Taxonomyi

Protein namesi
Recommended name:
6-phospho-beta-galactosidaseUniRule annotation (EC:3.2.1.85UniRule annotation)
Alternative name(s):
Beta-D-phosphogalactoside galactohydrolaseUniRule annotation
Short name:
PGALaseUniRule annotation
P-beta-GalUniRule annotation
Short name:
PBGUniRule annotation
Gene namesi
Name:lacGUniRule annotation
Ordered Locus Names:MGAS10750_Spy1729
OrganismiStreptococcus pyogenes serotype M4 (strain MGAS10750)
Taxonomic identifieri370554 [NCBI]
Taxonomic lineageiBacteriaFirmicutesBacilliLactobacillalesStreptococcaceaeStreptococcus
ProteomesiUP000002434 Componenti: Chromosome

PTM / Processingi

Molecule processing

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Chaini1 – 4684686-phospho-beta-galactosidasePRO_0000260741Add
BLAST

Structurei

3D structure databases

ProteinModelPortaliQ1J4Q7.
SMRiQ1J4Q7. Positions 1-468.
ModBaseiSearch...
MobiDBiSearch...

Family & Domainsi

Sequence similaritiesi

Belongs to the glycosyl hydrolase 1 family.UniRule annotation

Phylogenomic databases

eggNOGiCOG2723.
HOGENOMiHOG000088632.
KOiK01220.
OrthoDBiEOG60658J.

Family and domain databases

Gene3Di3.20.20.80. 1 hit.
HAMAPiMF_01574. LacG.
InterProiIPR005928. 6P-beta-galactosidase.
IPR001360. Glyco_hydro_1.
IPR018120. Glyco_hydro_1_AS.
IPR013781. Glyco_hydro_catalytic_dom.
IPR017853. Glycoside_hydrolase_SF.
[Graphical view]
PANTHERiPTHR10353. PTHR10353. 1 hit.
PfamiPF00232. Glyco_hydro_1. 1 hit.
[Graphical view]
PRINTSiPR00131. GLHYDRLASE1.
SUPFAMiSSF51445. SSF51445. 1 hit.
TIGRFAMsiTIGR01233. lacG. 1 hit.
PROSITEiPS00572. GLYCOSYL_HYDROL_F1_1. 1 hit.
PS00653. GLYCOSYL_HYDROL_F1_2. 1 hit.
[Graphical view]

Sequencei

Sequence statusi: Complete.

Q1J4Q7-1 [UniParc]FASTAAdd to basket

« Hide

        10         20         30         40         50
MTKTLPKDFI FGGATAAYQA EGATHTDGKG PVAWDKYLED NYWYTAEPAS
60 70 80 90 100
DFYNRYPVDL KLSEEFGVNG IRISIAWSRI FPTGKGDVNP KGVEYYHNLF
110 120 130 140 150
AECHKRHVEP FVTLHHFDTP EALHSDGDFL NRENIEHFVN YAEFCFKEFS
160 170 180 190 200
EVNYWTTFNE IGPIGDGQYL VGKFPPGIQY DLAKVFQSHH NMMVSHARAV
210 220 230 240 250
KLFKDGGYSG EIGVVHALPT KYPFDANNPD DVRAAELEDI IHNKFILDAT
260 270 280 290 300
YLGKYSDKTM EGVNHILEVN GGELDLREED FVALDAAKDL NDFLGINYYM
310 320 330 340 350
SDWMQAFDGE TEIIHNGKGE KGSSKYQIKG VGRRKAPVDV PKTDWDWIIF
360 370 380 390 400
PQGLYDQIMR VKADYPNYKK IYITENGLGY KDEFVDNTVY DDGRIDYVKK
410 420 430 440 450
HLEVISDAIS DGANVKGYFM WSLMDVFSWS NGYEKLYGLF YVDFETQERY
460
PKKSAYWYKK VAETQVIE
Length:468
Mass (Da):53,787
Last modified:November 28, 2006 - v2
Checksum:i251F1703B3385D9A
GO

Sequence cautioni

The sequence ABF38679.1 differs from that shown. Reason: Erroneous initiation. Curated

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
CP000262 Genomic DNA. Translation: ABF38679.1. Different initiation.
RefSeqiWP_011528999.1. NC_008024.1.

Genome annotation databases

EnsemblBacteriaiABF38679; ABF38679; MGAS10750_Spy1729.
KEGGispi:MGAS10750_Spy1729.
PATRICi19729800. VBIStrPyo25933_1774.

Cross-referencesi

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
CP000262 Genomic DNA. Translation: ABF38679.1. Different initiation.
RefSeqiWP_011528999.1. NC_008024.1.

3D structure databases

ProteinModelPortaliQ1J4Q7.
SMRiQ1J4Q7. Positions 1-468.
ModBaseiSearch...
MobiDBiSearch...

Protein family/group databases

CAZyiGH1. Glycoside Hydrolase Family 1.

Protocols and materials databases

Structural Biology KnowledgebaseSearch...

Genome annotation databases

EnsemblBacteriaiABF38679; ABF38679; MGAS10750_Spy1729.
KEGGispi:MGAS10750_Spy1729.
PATRICi19729800. VBIStrPyo25933_1774.

Phylogenomic databases

eggNOGiCOG2723.
HOGENOMiHOG000088632.
KOiK01220.
OrthoDBiEOG60658J.

Enzyme and pathway databases

UniPathwayiUPA00542; UER00605.
BioCyciSPYO370554:GI3S-1804-MONOMER.

Family and domain databases

Gene3Di3.20.20.80. 1 hit.
HAMAPiMF_01574. LacG.
InterProiIPR005928. 6P-beta-galactosidase.
IPR001360. Glyco_hydro_1.
IPR018120. Glyco_hydro_1_AS.
IPR013781. Glyco_hydro_catalytic_dom.
IPR017853. Glycoside_hydrolase_SF.
[Graphical view]
PANTHERiPTHR10353. PTHR10353. 1 hit.
PfamiPF00232. Glyco_hydro_1. 1 hit.
[Graphical view]
PRINTSiPR00131. GLHYDRLASE1.
SUPFAMiSSF51445. SSF51445. 1 hit.
TIGRFAMsiTIGR01233. lacG. 1 hit.
PROSITEiPS00572. GLYCOSYL_HYDROL_F1_1. 1 hit.
PS00653. GLYCOSYL_HYDROL_F1_2. 1 hit.
[Graphical view]
ProtoNetiSearch...

Publicationsi

  1. "Molecular genetic anatomy of inter- and intraserotype variation in the human bacterial pathogen group A Streptococcus."
    Beres S.B., Richter E.W., Nagiec M.J., Sumby P., Porcella S.F., DeLeo F.R., Musser J.M.
    Proc. Natl. Acad. Sci. U.S.A. 103:7059-7064(2006) [PubMed] [Europe PMC] [Abstract]
    Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
    Strain: MGAS10750.

Entry informationi

Entry nameiLACG_STRPF
AccessioniPrimary (citable) accession number: Q1J4Q7
Entry historyi
Integrated into UniProtKB/Swiss-Prot: November 28, 2006
Last sequence update: November 28, 2006
Last modified: July 22, 2015
This is version 67 of the entry and version 2 of the sequence. [Complete history]
Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programProkaryotic Protein Annotation Program

Miscellaneousi

Keywords - Technical termi

Complete proteome

Documents

  1. Glycosyl hydrolases
    Classification of glycosyl hydrolase families and list of entries
  2. PATHWAY comments
    Index of metabolic and biosynthesis pathways
  3. SIMILARITY comments
    Index of protein domains and families

External Data

Dasty 3

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 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.