NAGB_ALISL
ID NAGB_ALISL Reviewed; 266 AA.
AC B6EN78;
DT 14-APR-2009, integrated into UniProtKB/Swiss-Prot.
DT 25-NOV-2008, sequence version 1.
DT 03-AUG-2022, entry version 68.
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=VSAL_I2812;
OS Aliivibrio salmonicida (strain LFI1238) (Vibrio salmonicida (strain
OS LFI1238)).
OC Bacteria; Proteobacteria; Gammaproteobacteria; Vibrionales; Vibrionaceae;
OC Aliivibrio.
OX NCBI_TaxID=316275;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=LFI1238;
RX PubMed=19099551; DOI=10.1186/1471-2164-9-616;
RA Hjerde E., Lorentzen M.S., Holden M.T., Seeger K., Paulsen S., Bason N.,
RA Churcher C., Harris D., Norbertczak H., Quail M.A., Sanders S.,
RA Thurston S., Parkhill J., Willassen N.P., Thomson N.R.;
RT "The genome sequence of the fish pathogen Aliivibrio salmonicida strain
RT LFI1238 shows extensive evidence of gene decay.";
RL BMC Genomics 9:616-616(2008).
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; FM178379; CAQ80496.1; -; Genomic_DNA.
DR RefSeq; WP_012551244.1; NC_011312.1.
DR AlphaFoldDB; B6EN78; -.
DR SMR; B6EN78; -.
DR STRING; 316275.VSAL_I2812; -.
DR EnsemblBacteria; CAQ80496; CAQ80496; VSAL_I2812.
DR KEGG; vsa:VSAL_I2812; -.
DR eggNOG; COG0363; Bacteria.
DR HOGENOM; CLU_049611_0_1_6; -.
DR OMA; FNEPCSS; -.
DR OrthoDB; 1828393at2; -.
DR UniPathway; UPA00629; UER00684.
DR Proteomes; UP000001730; Chromosome 1.
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_1000139753"
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; 29974 MW; 299B30B69675DFD4 CRC64;
MRLIPLNQAE QVGAWSAQHI VNRINEFNPT ADRPFVLGLP TGGTPLNTYK KLIELYKADK
VSFKNVVTFN MDEYIGLDTN HPESYRTFMF ENFFNHVDIQ EENINLLNGN TDNHEEECQR
YEDKIKSYGR INLFMGGVGN DGHIAFNEPA SSLASRTRIK TLTEDTRIAN SRFFDGDIAQ
VPKYALTIGV GTLLDSAEIM ILITGHNKAL ALQAAVEGSV NHMWTVSALQ IHPKSVIVCD
EASQQELKVK TVKYFKELEA ENIKHV
