ID   NAGB_LACPL              Reviewed;         237 AA.
AC   Q88ZS6; F9UT30;
DT   23-MAY-2003, integrated into UniProtKB/Swiss-Prot.
DT   23-MAY-2003, sequence version 1.
DT   03-AUG-2022, entry version 99.
DE   RecName: Full=Glucosamine-6-phosphate deaminase {ECO:0000255|HAMAP-Rule:MF_01241};
DE            EC=3.5.99.6 {ECO:0000255|HAMAP-Rule:MF_01241};
DE   AltName: Full=GlcN6P deaminase {ECO:0000255|HAMAP-Rule:MF_01241};
DE            Short=GNPDA {ECO:0000255|HAMAP-Rule:MF_01241};
DE   AltName: Full=Glucosamine-6-phosphate isomerase {ECO:0000255|HAMAP-Rule:MF_01241};
GN   Name=nagB {ECO:0000255|HAMAP-Rule:MF_01241}; Synonyms=gnp;
GN   OrderedLocusNames=lp_0226;
OS   Lactiplantibacillus plantarum (strain ATCC BAA-793 / NCIMB 8826 / WCFS1)
OS   (Lactobacillus plantarum).
OC   Bacteria; Firmicutes; Bacilli; Lactobacillales; Lactobacillaceae;
OC   Lactiplantibacillus.
OX   NCBI_TaxID=220668;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC BAA-793 / NCIMB 8826 / WCFS1;
RX   PubMed=12566566; DOI=10.1073/pnas.0337704100;
RA   Kleerebezem M., Boekhorst J., van Kranenburg R., Molenaar D., Kuipers O.P.,
RA   Leer R., Tarchini R., Peters S.A., Sandbrink H.M., Fiers M.W.E.J.,
RA   Stiekema W., Klein Lankhorst R.M., Bron P.A., Hoffer S.M.,
RA   Nierop Groot M.N., Kerkhoven R., De Vries M., Ursing B., De Vos W.M.,
RA   Siezen R.J.;
RT   "Complete genome sequence of Lactobacillus plantarum WCFS1.";
RL   Proc. Natl. Acad. Sci. U.S.A. 100:1990-1995(2003).
RN   [2]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA], AND GENOME REANNOTATION.
RC   STRAIN=ATCC BAA-793 / NCIMB 8826 / WCFS1;
RX   PubMed=22156394; DOI=10.1128/jb.06275-11;
RA   Siezen R.J., Francke C., Renckens B., Boekhorst J., Wels M.,
RA   Kleerebezem M., van Hijum S.A.;
RT   "Complete resequencing and reannotation of the Lactobacillus plantarum
RT   WCFS1 genome.";
RL   J. Bacteriol. 194:195-196(2012).
CC   -!- FUNCTION: Catalyzes the reversible isomerization-deamination of
CC       glucosamine 6-phosphate (GlcN6P) to form fructose 6-phosphate (Fru6P)
CC       and ammonium ion. {ECO:0000255|HAMAP-Rule:MF_01241}.
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=alpha-D-glucosamine 6-phosphate + H2O = beta-D-fructose 6-
CC         phosphate + NH4(+); Xref=Rhea:RHEA:12172, ChEBI:CHEBI:15377,
CC         ChEBI:CHEBI:28938, ChEBI:CHEBI:57634, ChEBI:CHEBI:75989; EC=3.5.99.6;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_01241};
CC   -!- PATHWAY: Amino-sugar metabolism; N-acetylneuraminate degradation; D-
CC       fructose 6-phosphate from N-acetylneuraminate: step 5/5.
CC       {ECO:0000255|HAMAP-Rule:MF_01241}.
CC   -!- SIMILARITY: Belongs to the glucosamine/galactosamine-6-phosphate
CC       isomerase family. NagB subfamily. {ECO:0000255|HAMAP-Rule:MF_01241}.
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; AL935263; CCC77761.1; -; Genomic_DNA.
DR   RefSeq; WP_003641817.1; NC_004567.2.
DR   RefSeq; YP_004888275.1; NC_004567.2.
DR   AlphaFoldDB; Q88ZS6; -.
DR   SMR; Q88ZS6; -.
DR   STRING; 220668.lp_0226; -.
DR   EnsemblBacteria; CCC77761; CCC77761; lp_0226.
DR   GeneID; 57027048; -.
DR   GeneID; 66448338; -.
DR   KEGG; lpl:lp_0226; -.
DR   PATRIC; fig|220668.9.peg.188; -.
DR   eggNOG; COG0363; Bacteria.
DR   HOGENOM; CLU_049611_1_0_9; -.
DR   OMA; FNEPCSS; -.
DR   PhylomeDB; Q88ZS6; -.
DR   BioCyc; LPLA220668:G1GW0-183-MON; -.
DR   UniPathway; UPA00629; UER00684.
DR   Proteomes; UP000000432; Chromosome.
DR   GO; GO:0005737; C:cytoplasm; IEA:UniProt.
DR   GO; GO:0004342; F:glucosamine-6-phosphate deaminase activity; IEA:UniProtKB-UniRule.
DR   GO; GO:0005975; P:carbohydrate metabolic process; IEA:UniProtKB-KW.
DR   GO; GO:0006044; P:N-acetylglucosamine metabolic process; IEA:UniProtKB-UniRule.
DR   GO; GO:0019262; P:N-acetylneuraminate catabolic process; IEA:UniProtKB-UniPathway.
DR   CDD; cd01399; GlcN6P_deaminase; 1.
DR   HAMAP; MF_01241; GlcN6P_deamin; 1.
DR   InterPro; IPR006148; Glc/Gal-6P_isomerase.
DR   InterPro; IPR004547; Glucosamine6P_isomerase.
DR   InterPro; IPR018321; Glucosamine6P_isomerase_CS.
DR   InterPro; IPR037171; NagB/RpiA_transferase-like.
DR   PANTHER; PTHR11280; PTHR11280; 1.
DR   Pfam; PF01182; Glucosamine_iso; 1.
DR   SUPFAM; SSF100950; SSF100950; 1.
DR   PROSITE; PS01161; GLC_GALNAC_ISOMERASE; 1.
PE   3: Inferred from homology;
KW   Carbohydrate metabolism; Hydrolase; Reference proteome.
FT   CHAIN           1..237
FT                   /note="Glucosamine-6-phosphate deaminase"
FT                   /id="PRO_0000160151"
FT   ACT_SITE        62
FT                   /note="Proton acceptor; for enolization step"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01241"
FT   ACT_SITE        128
FT                   /note="For ring-opening step"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01241"
FT   ACT_SITE        130
FT                   /note="Proton acceptor; for ring-opening step"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01241"
FT   ACT_SITE        135
FT                   /note="For ring-opening step"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01241"
SQ   SEQUENCE   237 AA;  25881 MW;  0BCD10BCF569A603 CRC64;
     MKVIVVKDQA AGGKEGFKVF KNALDNGAKV FGLATGSTPV TTYKEIVNSD LDFSDCTSVN
     LDEYVGIAPD NDQSYKYFMQ THLFNDKPFK ESFLPNGLAS DPEAEVKRYD KVIDEHPIDL
     QILGIGRNGH IGFNEPGTPR DITTHVVDLT ESTIEANARF FASENDVPKQ AFSMGLASIM
     KSKHLLLEAF GENKADAVKG MIEGPDTPEL PASILQNHPD VTVIIDEAAA SKLSKKY