NAGB_COREF
ID NAGB_COREF Reviewed; 253 AA.
AC Q8FMI6;
DT 23-MAY-2003, integrated into UniProtKB/Swiss-Prot.
DT 23-MAY-2003, sequence version 2.
DT 03-AUG-2022, entry version 92.
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=CE2518;
OS Corynebacterium efficiens (strain DSM 44549 / YS-314 / AJ 12310 / JCM 11189
OS / NBRC 100395).
OC Bacteria; Actinobacteria; Corynebacteriales; Corynebacteriaceae;
OC Corynebacterium.
OX NCBI_TaxID=196164;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=DSM 44549 / YS-314 / AJ 12310 / JCM 11189 / NBRC 100395;
RX PubMed=12840036; DOI=10.1101/gr.1285603;
RA Nishio Y., Nakamura Y., Kawarabayasi Y., Usuda Y., Kimura E., Sugimoto S.,
RA Matsui K., Yamagishi A., Kikuchi H., Ikeo K., Gojobori T.;
RT "Comparative complete genome sequence analysis of the amino acid
RT replacements responsible for the thermostability of Corynebacterium
RT efficiens.";
RL Genome Res. 13:1572-1579(2003).
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 -!- SEQUENCE CAUTION:
CC Sequence=BAC19328.1; Type=Erroneous initiation; Evidence={ECO:0000305};
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DR EMBL; BA000035; BAC19328.1; ALT_INIT; Genomic_DNA.
DR RefSeq; WP_035109340.1; NC_004369.1.
DR AlphaFoldDB; Q8FMI6; -.
DR SMR; Q8FMI6; -.
DR STRING; 196164.23494361; -.
DR EnsemblBacteria; BAC19328; BAC19328; BAC19328.
DR KEGG; cef:CE2518; -.
DR eggNOG; COG0363; Bacteria.
DR HOGENOM; CLU_049611_1_1_11; -.
DR UniPathway; UPA00629; UER00684.
DR Proteomes; UP000001409; 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..253
FT /note="Glucosamine-6-phosphate deaminase"
FT /id="PRO_0000160141"
FT ACT_SITE 65
FT /note="Proton acceptor; for enolization step"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01241"
FT ACT_SITE 133
FT /note="For ring-opening step"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01241"
FT ACT_SITE 135
FT /note="Proton acceptor; for ring-opening step"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01241"
FT ACT_SITE 140
FT /note="For ring-opening step"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01241"
SQ SEQUENCE 253 AA; 27694 MW; F1C9ED0D7D1E1DCA CRC64;
MDIIIRADAQ EVGKEAAAIM APFIKQGRTI GLATGSSPLT TYRELIRMYE SGELTFKTIQ
AFLLDEYVGL ARDDKNSYFR TIRDEFTAHV DFVDANVHSP DSTDPDPYHA AALYEQKIID
TGVAIQLLGV GVNGHIGFNE PTSALQGPTK VQALHPQTIK DNARFFNDCI ENVPTHAMTQ
GLGTITRAEN IIMVATGEAK ADAIHRIVEG PLTALCPGSV LQLHADVTIV VDEAAASKLE
HADYYRTMER IRL
