ID   LACA_STREM              Reviewed;         141 AA.
AC   B4U1F8;
DT   14-APR-2009, integrated into UniProtKB/Swiss-Prot.
DT   23-SEP-2008, sequence version 1.
DT   25-MAY-2022, entry version 64.
DE   RecName: Full=Galactose-6-phosphate isomerase subunit LacA {ECO:0000255|HAMAP-Rule:MF_01555};
DE            EC=5.3.1.26 {ECO:0000255|HAMAP-Rule:MF_01555};
GN   Name=lacA {ECO:0000255|HAMAP-Rule:MF_01555}; OrderedLocusNames=Sez_0453;
OS   Streptococcus equi subsp. zooepidemicus (strain MGCS10565).
OC   Bacteria; Firmicutes; Bacilli; Lactobacillales; Streptococcaceae;
OC   Streptococcus.
OX   NCBI_TaxID=552526;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=MGCS10565;
RX   PubMed=18716664; DOI=10.1371/journal.pone.0003026;
RA   Beres S.B., Sesso R., Pinto S.W.L., Hoe N.P., Porcella S.F., Deleo F.R.,
RA   Musser J.M.;
RT   "Genome sequence of a lancefield group C Streptococcus zooepidemicus strain
RT   causing epidemic nephritis: new information about an old disease.";
RL   PLoS ONE 3:E3026-E3026(2008).
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=aldehydo-D-galactose 6-phosphate = keto-D-tagatose 6-
CC         phosphate; Xref=Rhea:RHEA:13033, ChEBI:CHEBI:58255,
CC         ChEBI:CHEBI:134283; EC=5.3.1.26; Evidence={ECO:0000255|HAMAP-
CC         Rule:MF_01555};
CC   -!- PATHWAY: Carbohydrate metabolism; D-galactose 6-phosphate degradation;
CC       D-tagatose 6-phosphate from D-galactose 6-phosphate: step 1/1.
CC       {ECO:0000255|HAMAP-Rule:MF_01555}.
CC   -!- SUBUNIT: Heteromultimeric protein consisting of LacA and LacB.
CC       {ECO:0000255|HAMAP-Rule:MF_01555}.
CC   -!- SIMILARITY: Belongs to the LacAB/RpiB family. {ECO:0000255|HAMAP-
CC       Rule:MF_01555}.
CC   ---------------------------------------------------------------------------
CC   Copyrighted by the UniProt Consortium, see https://www.uniprot.org/terms
CC   Distributed under the Creative Commons Attribution (CC BY 4.0) License
CC   ---------------------------------------------------------------------------
DR   EMBL; CP001129; ACG61825.1; -; Genomic_DNA.
DR   RefSeq; WP_012515101.1; NC_011134.1.
DR   AlphaFoldDB; B4U1F8; -.
DR   SMR; B4U1F8; -.
DR   EnsemblBacteria; ACG61825; ACG61825; Sez_0453.
DR   GeneID; 64011614; -.
DR   KEGG; sez:Sez_0453; -.
DR   HOGENOM; CLU_091396_4_2_9; -.
DR   OMA; RCAIVSE; -.
DR   UniPathway; UPA00702; UER00714.
DR   Proteomes; UP000001873; Chromosome.
DR   GO; GO:0050044; F:galactose-6-phosphate isomerase activity; IEA:UniProtKB-UniRule.
DR   GO; GO:0019388; P:galactose catabolic process; IEA:UniProtKB-UniPathway.
DR   GO; GO:0019512; P:lactose catabolic process via tagatose-6-phosphate; IEA:UniProtKB-UniRule.
DR   Gene3D; 3.40.1400.10; -; 1.
DR   HAMAP; MF_01555; LacA; 1.
DR   InterPro; IPR004783; LacA.
DR   InterPro; IPR003500; RpiB_LacA_LacB.
DR   InterPro; IPR036569; RpiB_LacA_LacB_sf.
DR   PANTHER; PTHR30345; PTHR30345; 1.
DR   Pfam; PF02502; LacAB_rpiB; 1.
DR   PIRSF; PIRSF005384; RpiB_LacA_B; 1.
DR   SUPFAM; SSF89623; SSF89623; 1.
DR   TIGRFAMs; TIGR01118; lacA; 1.
DR   TIGRFAMs; TIGR00689; rpiB_lacA_lacB; 1.
PE   3: Inferred from homology;
KW   Isomerase; Lactose metabolism.
FT   CHAIN           1..141
FT                   /note="Galactose-6-phosphate isomerase subunit LacA"
FT                   /id="PRO_1000147081"
SQ   SEQUENCE   141 AA;  15247 MW;  4427500610AEBA72 CRC64;
     MAIILGADAH GNELKEVLKS FLQQEGFDVT DVTDIDKDFI DNTLAVAQAV NDKDTNLGIM
     VDAYGAGPFM VATKLKGMIA AEVSDERSAY MTRGHNNARM ITLGARIVGE ELAKNIAKAF
     VVGSYDGGRH QIRVDMLNKM A