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Database: UniProt
Entry: LACB_STAES
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ID   LACB_STAES              Reviewed;         171 AA.
AC   Q8CRJ3;
DT   28-NOV-2003, integrated into UniProtKB/Swiss-Prot.
DT   01-MAR-2003, sequence version 1.
DT   27-MAR-2024, entry version 105.
DE   RecName: Full=Galactose-6-phosphate isomerase subunit LacB {ECO:0000255|HAMAP-Rule:MF_01556};
DE            EC=5.3.1.26 {ECO:0000255|HAMAP-Rule:MF_01556};
GN   Name=lacB {ECO:0000255|HAMAP-Rule:MF_01556}; OrderedLocusNames=SE_1786;
OS   Staphylococcus epidermidis (strain ATCC 12228 / FDA PCI 1200).
OC   Bacteria; Bacillota; Bacilli; Bacillales; Staphylococcaceae;
OC   Staphylococcus.
OX   NCBI_TaxID=176280;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC 12228 / FDA PCI 1200;
RX   PubMed=12950922; DOI=10.1046/j.1365-2958.2003.03671.x;
RA   Zhang Y.-Q., Ren S.-X., Li H.-L., Wang Y.-X., Fu G., Yang J., Qin Z.-Q.,
RA   Miao Y.-G., Wang W.-Y., Chen R.-S., Shen Y., Chen Z., Yuan Z.-H.,
RA   Zhao G.-P., Qu D., Danchin A., Wen Y.-M.;
RT   "Genome-based analysis of virulence genes in a non-biofilm-forming
RT   Staphylococcus epidermidis strain (ATCC 12228).";
RL   Mol. Microbiol. 49:1577-1593(2003).
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_01556};
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_01556}.
CC   -!- SUBUNIT: Heteromultimeric protein consisting of LacA and LacB.
CC       {ECO:0000255|HAMAP-Rule:MF_01556}.
CC   -!- SIMILARITY: Belongs to the LacAB/RpiB family. {ECO:0000255|HAMAP-
CC       Rule:MF_01556}.
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DR   EMBL; AE015929; AAO05427.1; -; Genomic_DNA.
DR   RefSeq; NP_765341.1; NC_004461.1.
DR   RefSeq; WP_001829777.1; NZ_WBME01000007.1.
DR   AlphaFoldDB; Q8CRJ3; -.
DR   SMR; Q8CRJ3; -.
DR   GeneID; 50018110; -.
DR   KEGG; sep:SE_1786; -.
DR   PATRIC; fig|176280.10.peg.1743; -.
DR   eggNOG; COG0698; Bacteria.
DR   HOGENOM; CLU_091396_2_0_9; -.
DR   OrthoDB; 1778624at2; -.
DR   UniPathway; UPA00702; UER00714.
DR   Proteomes; UP000001411; 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; Sugar-phosphate isomerase, RpiB/LacA/LacB; 1.
DR   HAMAP; MF_01556; LacB; 1.
DR   InterPro; IPR004784; LacB.
DR   InterPro; IPR003500; RpiB_LacA_LacB.
DR   InterPro; IPR036569; RpiB_LacA_LacB_sf.
DR   NCBIfam; TIGR01119; lacB; 1.
DR   NCBIfam; TIGR00689; rpiB_lacA_lacB; 1.
DR   PANTHER; PTHR30345:SF0; DNA DAMAGE-REPAIR_TOLERATION PROTEIN DRT102; 1.
DR   PANTHER; PTHR30345; RIBOSE-5-PHOSPHATE ISOMERASE B; 1.
DR   Pfam; PF02502; LacAB_rpiB; 1.
DR   PIRSF; PIRSF005384; RpiB_LacA_B; 1.
DR   SUPFAM; SSF89623; Ribose/Galactose isomerase RpiB/AlsB; 1.
PE   3: Inferred from homology;
KW   Isomerase; Lactose metabolism.
FT   CHAIN           1..171
FT                   /note="Galactose-6-phosphate isomerase subunit LacB"
FT                   /id="PRO_0000208143"
SQ   SEQUENCE   171 AA;  18903 MW;  0CF3B0A59420B477 CRC64;
     MKIAIGCDHI VTDTKMEVSQ HLKSQGHEVI DVGTYDFTRT HYPIYGKKVG EKVASGEADL
     GVCICGTGVG ISNAANKVPG VRTALVRDMT SALYSKEELN ANVVSFGGKV AGELFIFDIV
     DAFIEAEYKP TEENKKLIAK INHLEAHNND QADPHFFDEF LEKWNKGEYH D
//
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