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NAGB_MALP2
ID   NAGB_MALP2              Reviewed;         242 AA.
AC   Q8EWM7;
DT   23-MAY-2003, integrated into UniProtKB/Swiss-Prot.
DT   01-MAR-2003, sequence version 1.
DT   03-AUG-2022, entry version 101.
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=MYPE1760;
OS   Malacoplasma penetrans (strain HF-2) (Mycoplasma penetrans).
OC   Bacteria; Tenericutes; Mycoplasmoidales; Mycoplasmoidaceae; Malacoplasma.
OX   NCBI_TaxID=272633;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=HF-2;
RX   PubMed=12466555; DOI=10.1093/nar/gkf667;
RA   Sasaki Y., Ishikawa J., Yamashita A., Oshima K., Kenri T., Furuya K.,
RA   Yoshino C., Horino A., Shiba T., Sasaki T., Hattori M.;
RT   "The complete genomic sequence of Mycoplasma penetrans, an intracellular
RT   bacterial pathogen in humans.";
RL   Nucleic Acids Res. 30:5293-5300(2002).
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; BA000026; BAC43967.1; -; Genomic_DNA.
DR   RefSeq; WP_011077003.1; NC_004432.1.
DR   AlphaFoldDB; Q8EWM7; -.
DR   SMR; Q8EWM7; -.
DR   STRING; 272633.26453635; -.
DR   EnsemblBacteria; BAC43967; BAC43967; BAC43967.
DR   KEGG; mpe:MYPE1760; -.
DR   eggNOG; COG0363; Bacteria.
DR   HOGENOM; CLU_049611_1_1_14; -.
DR   OMA; FNEPCSS; -.
DR   OrthoDB; 1828393at2; -.
DR   UniPathway; UPA00629; UER00684.
DR   Proteomes; UP000002522; 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   Carbohydrate metabolism; Hydrolase; Reference proteome.
FT   CHAIN           1..242
FT                   /note="Glucosamine-6-phosphate deaminase"
FT                   /id="PRO_0000160155"
FT   ACT_SITE        71
FT                   /note="Proton acceptor; for enolization step"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01241"
FT   ACT_SITE        142
FT                   /note="For ring-opening step"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01241"
FT   ACT_SITE        144
FT                   /note="Proton acceptor; for ring-opening step"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01241"
FT   ACT_SITE        149
FT                   /note="For ring-opening step"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01241"
SQ   SEQUENCE   242 AA;  27304 MW;  D4D72F5977BFBA60 CRC64;
     MNNNINFIKC SSYEELSKKT ANDFITVIKN KPNSVLGLAT GSSPMGVYKE LIKAYENKEI
     SFRDCVSFNL DEYIGLKKEY EDQTYKYFMN DNLFSKIDIN KDNTFFPIDA FSTNMNQDFE
     SYDSKIDSYN GLDILILGIG NNGHIGFNEP GSLIDSKTRM IDLTESTIKA NSRFFKSEND
     VPRKSVTMGL STILKAKKIV LVVVGDSKKE ALNALMNSKS FDSNWPCTAL VNHDNVVVYY
     IG
 
 
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