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LACG_STRP6
ID   LACG_STRP6              Reviewed;         468 AA.
AC   Q5X9Y7;
DT   28-NOV-2006, integrated into UniProtKB/Swiss-Prot.
DT   23-NOV-2004, sequence version 1.
DT   25-MAY-2022, entry version 98.
DE   RecName: Full=6-phospho-beta-galactosidase {ECO:0000255|HAMAP-Rule:MF_01574};
DE            EC=3.2.1.85 {ECO:0000255|HAMAP-Rule:MF_01574};
DE   AltName: Full=Beta-D-phosphogalactoside galactohydrolase {ECO:0000255|HAMAP-Rule:MF_01574};
DE            Short=PGALase {ECO:0000255|HAMAP-Rule:MF_01574};
DE   AltName: Full=P-beta-Gal {ECO:0000255|HAMAP-Rule:MF_01574};
DE            Short=PBG {ECO:0000255|HAMAP-Rule:MF_01574};
GN   Name=lacG {ECO:0000255|HAMAP-Rule:MF_01574}; OrderedLocusNames=M6_Spy1641;
OS   Streptococcus pyogenes serotype M6 (strain ATCC BAA-946 / MGAS10394).
OC   Bacteria; Firmicutes; Bacilli; Lactobacillales; Streptococcaceae;
OC   Streptococcus.
OX   NCBI_TaxID=286636;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC BAA-946 / MGAS10394;
RX   PubMed=15272401; DOI=10.1086/422697;
RA   Banks D.J., Porcella S.F., Barbian K.D., Beres S.B., Philips L.E.,
RA   Voyich J.M., DeLeo F.R., Martin J.M., Somerville G.A., Musser J.M.;
RT   "Progress toward characterization of the group A Streptococcus metagenome:
RT   complete genome sequence of a macrolide-resistant serotype M6 strain.";
RL   J. Infect. Dis. 190:727-738(2004).
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=a 6-phospho-beta-D-galactoside + H2O = an alcohol + D-
CC         galactose 6-phosphate; Xref=Rhea:RHEA:24568, ChEBI:CHEBI:15377,
CC         ChEBI:CHEBI:30879, ChEBI:CHEBI:58534, ChEBI:CHEBI:91004; EC=3.2.1.85;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_01574};
CC   -!- PATHWAY: Carbohydrate metabolism; lactose degradation; D-galactose 6-
CC       phosphate and beta-D-glucose from lactose 6-phosphate: step 1/1.
CC       {ECO:0000255|HAMAP-Rule:MF_01574}.
CC   -!- SIMILARITY: Belongs to the glycosyl hydrolase 1 family.
CC       {ECO:0000255|HAMAP-Rule:MF_01574}.
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DR   EMBL; CP000003; AAT87776.1; -; Genomic_DNA.
DR   RefSeq; WP_011184962.1; NC_006086.1.
DR   AlphaFoldDB; Q5X9Y7; -.
DR   SMR; Q5X9Y7; -.
DR   CAZy; GH1; Glycoside Hydrolase Family 1.
DR   EnsemblBacteria; AAT87776; AAT87776; M6_Spy1641.
DR   KEGG; spa:M6_Spy1641; -.
DR   HOGENOM; CLU_001859_1_3_9; -.
DR   OMA; DWVYVVP; -.
DR   UniPathway; UPA00542; UER00605.
DR   Proteomes; UP000001167; Chromosome.
DR   GO; GO:0033920; F:6-phospho-beta-galactosidase activity; IEA:UniProtKB-UniRule.
DR   GO; GO:0019512; P:lactose catabolic process via tagatose-6-phosphate; IEA:InterPro.
DR   HAMAP; MF_01574; LacG; 1.
DR   InterPro; IPR005928; 6P-beta-galactosidase.
DR   InterPro; IPR001360; Glyco_hydro_1.
DR   InterPro; IPR018120; Glyco_hydro_1_AS.
DR   InterPro; IPR033132; Glyco_hydro_1_N_CS.
DR   InterPro; IPR017853; Glycoside_hydrolase_SF.
DR   PANTHER; PTHR10353; PTHR10353; 1.
DR   Pfam; PF00232; Glyco_hydro_1; 1.
DR   PRINTS; PR00131; GLHYDRLASE1.
DR   SUPFAM; SSF51445; SSF51445; 1.
DR   TIGRFAMs; TIGR01233; lacG; 1.
DR   PROSITE; PS00572; GLYCOSYL_HYDROL_F1_1; 1.
DR   PROSITE; PS00653; GLYCOSYL_HYDROL_F1_2; 1.
PE   3: Inferred from homology;
KW   Glycosidase; Hydrolase.
FT   CHAIN           1..468
FT                   /note="6-phospho-beta-galactosidase"
FT                   /id="PRO_0000260742"
FT   ACT_SITE        160
FT                   /note="Proton donor"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01574"
FT   ACT_SITE        375
FT                   /note="Nucleophile"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01574"
SQ   SEQUENCE   468 AA;  53869 MW;  36844A974A45B00D CRC64;
     MTKTLPKDFI FGGATAAYQA EGATHTDGKG PVAWDKYLED NYWYTAEPAS DFYNRYPVDL
     KLSEEFGVNG IRISIAWSRI FPTGKGEVNP KGVEYYHNLF AECHKRHVEP FVTLHHFDTP
     EALHSNGDFL NRENIEHFVN YAELCFKEFS EVNYWTTFNE IGPIGDGQYL VGKFPPGIQY
     DLAKVFQSHH NMMVSHARAV KLFKDSGYSG EIGVVHALPT KYPFDANNPD DVRAAELEDI
     IHNKFILDAT YLGKYSDKTM EGVNHILEVN GGELDLREED FVALDAAKDL NDFLGINYYM
     SDWMQAFDGE TEIIHNGKGE KGSSKYQIKG VGRRKAPVDV PKTDWDWIIF PQGLYDQIMR
     VKADYPNYKK IYITENGLGY KDEFVDNTVY DDGRIDYVKK HLEVISDAIS DGTNVKGYFM
     WSLMDVFSWS NGYEKRYGLF YVDFETQERY PKKSAYWYKK VAETQVIE
 
 
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