ID   NAGB_LISW6              Reviewed;         234 AA.
AC   A0AH75;
DT   05-FEB-2008, integrated into UniProtKB/Swiss-Prot.
DT   28-NOV-2006, sequence version 1.
DT   03-AUG-2022, entry version 84.
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}; OrderedLocusNames=lwe0939;
OS   Listeria welshimeri serovar 6b (strain ATCC 35897 / DSM 20650 / CIP 8149 /
OS   NCTC 11857 / SLCC 5334 / V8).
OC   Bacteria; Firmicutes; Bacilli; Bacillales; Listeriaceae; Listeria.
OX   NCBI_TaxID=386043;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC 35897 / DSM 20650 / CIP 8149 / NCTC 11857 / SLCC 5334 / V8;
RX   PubMed=16936040; DOI=10.1128/jb.00758-06;
RA   Hain T., Steinweg C., Kuenne C.T., Billion A., Ghai R., Chatterjee S.S.,
RA   Domann E., Kaerst U., Goesmann A., Bekel T., Bartels D., Kaiser O.,
RA   Meyer F., Puehler A., Weisshaar B., Wehland J., Liang C., Dandekar T.,
RA   Lampidis R., Kreft J., Goebel W., Chakraborty T.;
RT   "Whole-genome sequence of Listeria welshimeri reveals common steps in
RT   genome reduction with Listeria innocua as compared to Listeria
RT   monocytogenes.";
RL   J. Bacteriol. 188:7405-7415(2006).
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}.
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DR   EMBL; AM263198; CAK20357.1; -; Genomic_DNA.
DR   RefSeq; WP_011701769.1; NC_008555.1.
DR   AlphaFoldDB; A0AH75; -.
DR   SMR; A0AH75; -.
DR   STRING; 386043.lwe0939; -.
DR   EnsemblBacteria; CAK20357; CAK20357; lwe0939.
DR   GeneID; 61188830; -.
DR   KEGG; lwe:lwe0939; -.
DR   eggNOG; COG0363; Bacteria.
DR   HOGENOM; CLU_049611_1_0_9; -.
DR   OMA; NSYRYYM; -.
DR   OrthoDB; 1828393at2; -.
DR   UniPathway; UPA00629; UER00684.
DR   Proteomes; UP000000779; 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.
FT   CHAIN           1..234
FT                   /note="Glucosamine-6-phosphate deaminase"
FT                   /id="PRO_1000067001"
FT   ACT_SITE        63
FT                   /note="Proton acceptor; for enolization step"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01241"
FT   ACT_SITE        129
FT                   /note="For ring-opening step"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01241"
FT   ACT_SITE        131
FT                   /note="Proton acceptor; for ring-opening step"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01241"
FT   ACT_SITE        136
FT                   /note="For ring-opening step"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01241"
SQ   SEQUENCE   234 AA;  25511 MW;  47A90BF677074C30 CRC64;
     MQLITTENKL AGSKKALEII EKGITTGEVN TLGLATGSTP ETLYAELVKS DVDTTNVTTT
     NLDEYVGLAA SDPNSYHYYM NNLLFSKKAF KESFLPNGEA TDAEAECARY EEILTEHPID
     IQVLGIGTNG HIGFNEPGTS FDSLTHKVVL TDSTREANKR FFEREEDVPT HAYSMGIKSI
     MNAKKIILLA FGENKAQAIK ETIKGPVDVN CPASVLQNHP DVTVILDNEA ASLL