ID   LACB_STRP2              Reviewed;         171 AA.
AC   Q04KC2;
DT   05-FEB-2008, integrated into UniProtKB/Swiss-Prot.
DT   14-NOV-2006, sequence version 1.
DT   16-JUN-2009, entry version 15.
DE   RecName: Full=Galactose-6-phosphate isomerase subunit lacB;
DE            EC=5.3.1.26;
GN   Name=lacB; OrderedLocusNames=SPD_1052;
OS   Streptococcus pneumoniae serotype 2 (strain D39 / NCTC 7466).
OC   Bacteria; Firmicutes; Lactobacillales; Streptococcaceae;
OC   Streptococcus.
OX   NCBI_TaxID=373153;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RX   PubMed=17041037; DOI=10.1128/JB.01148-06;
RA   Lanie J.A., Ng W.-L., Kazmierczak K.M., Andrzejewski T.M.,
RA   Davidsen T.M., Wayne K.J., Tettelin H., Glass J.I., Winkler M.E.;
RT   "Genome sequence of Avery's virulent serotype 2 strain D39 of
RT   Streptococcus pneumoniae and comparison with that of unencapsulated
RT   laboratory strain R6.";
RL   J. Bacteriol. 189:38-51(2007).
CC   -!- CATALYTIC ACTIVITY: D-galactose 6-phosphate = D-tagatose 6-
CC       phosphate.
CC   -!- PATHWAY: Carbohydrate metabolism; galactose degradation; D-
CC       tagatose 6-phosphate from D-galactose 6-phosphate: step 1/1.
CC   -!- SUBUNIT: Heteromultimeric protein consisting of lacA and lacB (By
CC       similarity).
CC   -!- SIMILARITY: Belongs to the lacAB/rpiB family.
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DR   EMBL; CP000410; ABJ55425.1; -; Genomic_DNA.
DR   RefSeq; YP_816526.1; -.
DR   GeneID; 4442367; -.
DR   GenomeReviews; CP000410_GR; SPD_1052.
DR   KEGG; spd:SPD_1052; -.
DR   OMA; Q04KC2; ETHHANQ.
DR   GO; GO:0050044; F:galactose-6-phosphate isomerase activity; IEA:HAMAP.
DR   GO; GO:0019512; P:lactose catabolic process via tagatose-6-ph...; IEA:HAMAP.
DR   HAMAP; MF_01556; -; 1.
DR   InterPro; IPR004784; LacB.
DR   InterPro; IPR003500; Rib/Gal_isomrase.
DR   Gene3D; G3DSA:3.40.1400.10; Rib/Gal_isomrase; 1.
DR   Pfam; PF02502; LacAB_rpiB; 1.
DR   PIRSF; PIRSF005384; RpiB_LacA_B; 1.
DR   TIGRFAMs; TIGR01119; lacB; 1.
DR   TIGRFAMs; TIGR00689; rpiB_lacA_lacB; 1.
PE   3: Inferred from homology;
KW   Complete proteome; Isomerase; Lactose metabolism.
FT   CHAIN         1    171       Galactose-6-phosphate isomerase subunit
FT                                lacB.
FT                                /FTId=PRO_1000068928.
SQ   SEQUENCE   171 AA;  18958 MW;  4134A777467D2C39 CRC64;
     MRIAIGCDHI VTDEKMAVSE FLKSKGYEVI DFGTYDHTRT HYPIFGKKVG EAVTSGQADL
     GVCICGTGVG INNAVNKVPG VRSALVRDMT TALYAKEQLN ANVIGFGGKI TGELLMCDII
     EAFIHAEYKP SEENKKLIAK IEHLESHNAQ QTDANFFTEF LEKWDRGEYH D
//