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Protein

6-phospho-beta-galactosidase 2

Gene

lacG2

Organism
Streptococcus pneumoniae serotype 4 (strain ATCC BAA-334 / TIGR4)
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: lactose 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 2 (lacG2), 6-phospho-beta-galactosidase 1 (lacG1)
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

BioCyciSPNE170187:GHGN-1189-MONOMER.
UniPathwayiUPA00542; UER00605.

Protein family/group databases

CAZyiGH1. Glycoside Hydrolase Family 1.

Names & Taxonomyi

Protein namesi
Recommended name:
6-phospho-beta-galactosidase 2UniRule annotation (EC:3.2.1.85UniRule annotation)
Alternative name(s):
Beta-D-phosphogalactoside galactohydrolase 2UniRule annotation
Short name:
PGALase 2UniRule annotation
P-beta-Gal 2UniRule annotation
Short name:
PBG 2UniRule annotation
Gene namesi
Name:lacG2UniRule annotation
Synonyms:lacG-2
Ordered Locus Names:SP_1184
OrganismiStreptococcus pneumoniae serotype 4 (strain ATCC BAA-334 / TIGR4)
Taxonomic identifieri170187 [NCBI]
Taxonomic lineageiBacteriaFirmicutesBacilliLactobacillalesStreptococcaceaeStreptococcus

PTM / Processingi

Molecule processing

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Chaini1 – 4684686-phospho-beta-galactosidase 2PRO_0000260731Add
BLAST

Interactioni

Protein-protein interaction databases

STRINGi170187.SpneT_02001277.

Structurei

3D structure databases

ProteinModelPortaliQ97QL9.
SMRiQ97QL9. Positions 1-468.
ModBaseiSearch...
MobiDBiSearch...

Family & Domainsi

Sequence similaritiesi

Belongs to the glycosyl hydrolase 1 family.UniRule annotation

Phylogenomic databases

eggNOGiCOG2723.
HOGENOMiHOG000088632.
KOiK01220.
OMAiVKRFATF.
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.

Q97QL9-1 [UniParc]FASTAAdd to basket

« Hide

        10         20         30         40         50
MTKTLPKDFI FGGATAAYQA EGATHTDGKG PVAWDKYLED NYWYTAEPAS
60 70 80 90 100
DFYNRYPVDL KLAEEYGVNG IRISIAWSRI FPTGYGQVNA KGVEFYHNLF
110 120 130 140 150
AECHKRHVEP FVTLHHFDTP EALHSNGDFL NRENIEHFVD YAAFCFEEFP
160 170 180 190 200
EVNYWTTFNE IGPIGDGQYL VGKFPPGIQY DLAKVFQSHH NMMVSHARAV
210 220 230 240 250
KLYKEKGYKG EIGVVHALPT KYPLDPENPA DVRAAELEDI IHNKFILDAT
260 270 280 290 300
YLGRYSAETM EGVNHILLVN GGSLDLREED FTALEAAKDL NDFLGINYYM
310 320 330 340 350
SDWMEAFDGE TEIIHNGKGE KGSSKYQIKG VGRRVAPDYV PRTDWDWIIY
360 370 380 390 400
PQGLYDQIMR VKKDYPNYKK IYITENGLGY KDEFVDNTVY DDGRIDYVKQ
410 420 430 440 450
HLEVLSDAIA DGANVKGYFI WSLMDVFSWS NGYEKRYGLF YVDFETQERY
460
PKKSAHWYKK VAETQIID
Length:468
Mass (Da):53,914
Last modified:October 1, 2001 - v1
Checksum:iBCCB944228B0E90F
GO

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
AE005672 Genomic DNA. Translation: AAK75293.1.
PIRiD95137.
RefSeqiNP_345653.1. NC_003028.3.
WP_000169265.1. NZ_AKVY01000001.1.

Genome annotation databases

EnsemblBacteriaiAAK75293; AAK75293; SP_1184.
KEGGispn:SP_1184.
PATRICi19706767. VBIStrPne105772_1228.

Cross-referencesi

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
AE005672 Genomic DNA. Translation: AAK75293.1.
PIRiD95137.
RefSeqiNP_345653.1. NC_003028.3.
WP_000169265.1. NZ_AKVY01000001.1.

3D structure databases

ProteinModelPortaliQ97QL9.
SMRiQ97QL9. Positions 1-468.
ModBaseiSearch...
MobiDBiSearch...

Protein-protein interaction databases

STRINGi170187.SpneT_02001277.

Protein family/group databases

CAZyiGH1. Glycoside Hydrolase Family 1.

Protocols and materials databases

Structural Biology KnowledgebaseSearch...

Genome annotation databases

EnsemblBacteriaiAAK75293; AAK75293; SP_1184.
KEGGispn:SP_1184.
PATRICi19706767. VBIStrPne105772_1228.

Phylogenomic databases

eggNOGiCOG2723.
HOGENOMiHOG000088632.
KOiK01220.
OMAiVKRFATF.
OrthoDBiEOG60658J.

Enzyme and pathway databases

UniPathwayiUPA00542; UER00605.
BioCyciSPNE170187:GHGN-1189-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. Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
    Strain: ATCC BAA-334 / TIGR4.

Entry informationi

Entry nameiLACG2_STRPN
AccessioniPrimary (citable) accession number: Q97QL9
Entry historyi
Integrated into UniProtKB/Swiss-Prot: November 28, 2006
Last sequence update: October 1, 2001
Last modified: June 24, 2015
This is version 92 of the entry and version 1 of the sequence. [Complete history]
Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programProkaryotic Protein Annotation Program

Miscellaneousi

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.