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LACG_STRP1
ID   LACG_STRP1              Reviewed;         468 AA.
AC   Q99Y18; Q48WM5;
DT   28-NOV-2006, integrated into UniProtKB/Swiss-Prot.
DT   01-JUN-2001, sequence version 1.
DT   25-MAY-2022, entry version 132.
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};
GN   OrderedLocusNames=SPy_1916, M5005_Spy1632;
OS   Streptococcus pyogenes serotype M1.
OC   Bacteria; Firmicutes; Bacilli; Lactobacillales; Streptococcaceae;
OC   Streptococcus.
OX   NCBI_TaxID=301447;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC 700294 / SF370 / Serotype M1;
RX   PubMed=11296296; DOI=10.1073/pnas.071559398;
RA   Ferretti J.J., McShan W.M., Ajdic D.J., Savic D.J., Savic G., Lyon K.,
RA   Primeaux C., Sezate S., Suvorov A.N., Kenton S., Lai H.S., Lin S.P.,
RA   Qian Y., Jia H.G., Najar F.Z., Ren Q., Zhu H., Song L., White J., Yuan X.,
RA   Clifton S.W., Roe B.A., McLaughlin R.E.;
RT   "Complete genome sequence of an M1 strain of Streptococcus pyogenes.";
RL   Proc. Natl. Acad. Sci. U.S.A. 98:4658-4663(2001).
RN   [2]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC BAA-947 / MGAS5005 / Serotype M1;
RX   PubMed=16088826; DOI=10.1086/432514;
RA   Sumby P., Porcella S.F., Madrigal A.G., Barbian K.D., Virtaneva K.,
RA   Ricklefs S.M., Sturdevant D.E., Graham M.R., Vuopio-Varkila J., Hoe N.P.,
RA   Musser J.M.;
RT   "Evolutionary origin and emergence of a highly successful clone of serotype
RT   M1 group A Streptococcus involved multiple horizontal gene transfer
RT   events.";
RL   J. Infect. Dis. 192:771-782(2005).
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}.
CC   -!- SEQUENCE CAUTION:
CC       Sequence=AAZ52250.1; Type=Erroneous initiation; Evidence={ECO:0000305};
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DR   EMBL; AE004092; AAK34620.1; -; Genomic_DNA.
DR   EMBL; CP000017; AAZ52250.1; ALT_INIT; Genomic_DNA.
DR   RefSeq; NP_269899.1; NC_002737.2.
DR   AlphaFoldDB; Q99Y18; -.
DR   SMR; Q99Y18; -.
DR   STRING; 1314.HKU360_01755; -.
DR   CAZy; GH1; Glycoside Hydrolase Family 1.
DR   PaxDb; Q99Y18; -.
DR   EnsemblBacteria; AAK34620; AAK34620; SPy_1916.
DR   KEGG; spy:SPy_1916; -.
DR   KEGG; spz:M5005_Spy1632; -.
DR   PATRIC; fig|160490.10.peg.1665; -.
DR   HOGENOM; CLU_001859_1_3_9; -.
DR   OMA; DWVYVVP; -.
DR   UniPathway; UPA00542; UER00605.
DR   Proteomes; UP000000750; 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; Reference proteome.
FT   CHAIN           1..468
FT                   /note="6-phospho-beta-galactosidase"
FT                   /id="PRO_0000260734"
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;  53788 MW;  C9EEDECAE68BA3F4 CRC64;
     MTKTLPKDFI FGGATAAYQA EGATHTDGKG PVAWDKYLED NYWYTAEPAS DFYNRYPVDL
     KLSEEFGVNG IRISIAWSRI FPTGKGEVNP KGVEYYHNLF AECHKRHVEP FVTLHHFDTP
     EALHSDGDFL NRENIEHFVN YAEFCFKEFS EVNYWTTFNE IGPIGDGQYL VGKFPPGIQY
     DLAKVFQSHH NMMVSHARAV KLFKDSGYSG EIGVVHALPT KYPFDANNPD DVRAAELEDI
     IHNKFILDAT YLGKYSDKTM EGVNHILEVN GGELDLREED FAALDAAKDL NDFLGINYYM
     SDWMQAFDGE TEIIHNGKGE KGSSKYQIKG VGRRKAPVDV PKTDWDWIIF PQGLYDQIMR
     VKADYPNYKK IYITENGLGY KDEFVDNTVY DGGRIDYVKK HLEVISDAIS DGANVKGYFM
     WSLMDVFSWS NGYEKRYGLF YVDFETQERY PKKSAYWYKK VAETQVIE
 
 
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