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NAGB_PECCP
ID   NAGB_PECCP              Reviewed;         266 AA.
AC   C6DBY4;
DT   22-SEP-2009, integrated into UniProtKB/Swiss-Prot.
DT   01-SEP-2009, sequence version 1.
DT   03-AUG-2022, entry version 72.
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=PC1_1203;
OS   Pectobacterium carotovorum subsp. carotovorum (strain PC1).
OC   Bacteria; Proteobacteria; Gammaproteobacteria; Enterobacterales;
OC   Pectobacteriaceae; Pectobacterium.
OX   NCBI_TaxID=561230;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=PC1;
RG   US DOE Joint Genome Institute;
RA   Lucas S., Copeland A., Lapidus A., Glavina del Rio T., Tice H., Bruce D.,
RA   Goodwin L., Pitluck S., Munk A.C., Brettin T., Detter J.C., Han C.,
RA   Tapia R., Larimer F., Land M., Hauser L., Kyrpides N., Mikhailova N.,
RA   Balakrishnan V., Glasner J., Perna N.T.;
RT   "Complete sequence of Pectobacterium carotovorum subsp. carotovorum PC1.";
RL   Submitted (JUL-2009) to the EMBL/GenBank/DDBJ databases.
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   -!- ACTIVITY REGULATION: Allosterically activated by N-acetylglucosamine 6-
CC       phosphate (GlcNAc6P). {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   -!- SUBUNIT: Homohexamer. {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; CP001657; ACT12251.1; -; Genomic_DNA.
DR   RefSeq; WP_015839483.1; NC_012917.1.
DR   AlphaFoldDB; C6DBY4; -.
DR   SMR; C6DBY4; -.
DR   STRING; 561230.PC1_1203; -.
DR   PRIDE; C6DBY4; -.
DR   EnsemblBacteria; ACT12251; ACT12251; PC1_1203.
DR   KEGG; pct:PC1_1203; -.
DR   eggNOG; COG0363; Bacteria.
DR   HOGENOM; CLU_049611_0_1_6; -.
DR   OMA; FNEPCSS; -.
DR   OrthoDB; 1828393at2; -.
DR   UniPathway; UPA00629; UER00684.
DR   Proteomes; UP000002736; 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   TIGRFAMs; TIGR00502; nagB; 1.
DR   PROSITE; PS01161; GLC_GALNAC_ISOMERASE; 1.
PE   3: Inferred from homology;
KW   Allosteric enzyme; Carbohydrate metabolism; Hydrolase.
FT   CHAIN           1..266
FT                   /note="Glucosamine-6-phosphate deaminase"
FT                   /id="PRO_1000214087"
FT   ACT_SITE        72
FT                   /note="Proton acceptor; for enolization step"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01241"
FT   ACT_SITE        141
FT                   /note="For ring-opening step"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01241"
FT   ACT_SITE        143
FT                   /note="Proton acceptor; for ring-opening step"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01241"
FT   ACT_SITE        148
FT                   /note="For ring-opening step"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01241"
FT   SITE            151
FT                   /note="Part of the allosteric site"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01241"
FT   SITE            158
FT                   /note="Part of the allosteric site"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01241"
FT   SITE            160
FT                   /note="Part of the allosteric site"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01241"
FT   SITE            161
FT                   /note="Part of the allosteric site"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01241"
FT   SITE            254
FT                   /note="Part of the allosteric site"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01241"
SQ   SEQUENCE   266 AA;  29619 MW;  78C2FAC8A68340D7 CRC64;
     MRLIPLTTAA DVGKWAARHI VEKINAFKPS AERPFILGLP TGSSPLEAYK SLVAMHQAGL
     VSFKHVVTFN MDEYVGLPTD HPESYHTFMH QNFFNHIDIP RENINLLNGN AEDTTAECRR
     YEEKIKSYGK IHLFMGGVGN DGHIAFNEPA SSLASRTRIK TLTEETRIAN SRFFGGDVSL
     VPKFALTVGV GTLLDAEEVM ILVTGRNKAL ALQAAVEGNV NHMWTISCLQ LHAKAIMVCD
     EPSTMELKVK TVKYFRELET ESMKNL
 
 
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