NAGZ_ECOSE
ID NAGZ_ECOSE Reviewed; 341 AA.
AC B6I9I5;
DT 14-APR-2009, integrated into UniProtKB/Swiss-Prot.
DT 16-DEC-2008, sequence version 1.
DT 03-AUG-2022, entry version 72.
DE RecName: Full=Beta-hexosaminidase {ECO:0000255|HAMAP-Rule:MF_00364};
DE EC=3.2.1.52 {ECO:0000255|HAMAP-Rule:MF_00364};
DE AltName: Full=Beta-N-acetylhexosaminidase {ECO:0000255|HAMAP-Rule:MF_00364};
DE AltName: Full=N-acetyl-beta-glucosaminidase {ECO:0000255|HAMAP-Rule:MF_00364};
GN Name=nagZ {ECO:0000255|HAMAP-Rule:MF_00364}; OrderedLocusNames=ECSE_1172;
OS Escherichia coli (strain SE11).
OC Bacteria; Proteobacteria; Gammaproteobacteria; Enterobacterales;
OC Enterobacteriaceae; Escherichia.
OX NCBI_TaxID=409438;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=SE11;
RX PubMed=18931093; DOI=10.1093/dnares/dsn026;
RA Oshima K., Toh H., Ogura Y., Sasamoto H., Morita H., Park S.-H., Ooka T.,
RA Iyoda S., Taylor T.D., Hayashi T., Itoh K., Hattori M.;
RT "Complete genome sequence and comparative analysis of the wild-type
RT commensal Escherichia coli strain SE11 isolated from a healthy adult.";
RL DNA Res. 15:375-386(2008).
CC -!- FUNCTION: Plays a role in peptidoglycan recycling by cleaving the
CC terminal beta-1,4-linked N-acetylglucosamine (GlcNAc) from peptide-
CC linked peptidoglycan fragments, giving rise to free GlcNAc, anhydro-N-
CC acetylmuramic acid and anhydro-N-acetylmuramic acid-linked peptides.
CC {ECO:0000255|HAMAP-Rule:MF_00364}.
CC -!- CATALYTIC ACTIVITY:
CC Reaction=Hydrolysis of terminal non-reducing N-acetyl-D-hexosamine
CC residues in N-acetyl-beta-D-hexosaminides.; EC=3.2.1.52;
CC Evidence={ECO:0000255|HAMAP-Rule:MF_00364};
CC -!- PATHWAY: Cell wall biogenesis; peptidoglycan recycling.
CC {ECO:0000255|HAMAP-Rule:MF_00364}.
CC -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000255|HAMAP-Rule:MF_00364}.
CC -!- SIMILARITY: Belongs to the glycosyl hydrolase 3 family. NagZ subfamily.
CC {ECO:0000255|HAMAP-Rule:MF_00364}.
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DR EMBL; AP009240; BAG76696.1; -; Genomic_DNA.
DR RefSeq; WP_000529331.1; NC_011415.1.
DR AlphaFoldDB; B6I9I5; -.
DR SMR; B6I9I5; -.
DR CAZy; GH3; Glycoside Hydrolase Family 3.
DR EnsemblBacteria; BAG76696; BAG76696; ECSE_1172.
DR GeneID; 66670627; -.
DR KEGG; ecy:ECSE_1172; -.
DR HOGENOM; CLU_008392_0_0_6; -.
DR OMA; WQMAAEM; -.
DR UniPathway; UPA00544; -.
DR Proteomes; UP000008199; Chromosome.
DR GO; GO:0005737; C:cytoplasm; IEA:UniProtKB-SubCell.
DR GO; GO:0004563; F:beta-N-acetylhexosaminidase activity; IEA:UniProtKB-UniRule.
DR GO; GO:0102148; F:N-acetyl-beta-D-galactosaminidase activity; IEA:UniProtKB-EC.
DR GO; GO:0005975; P:carbohydrate metabolic process; IEA:InterPro.
DR GO; GO:0007049; P:cell cycle; IEA:UniProtKB-KW.
DR GO; GO:0051301; P:cell division; IEA:UniProtKB-KW.
DR GO; GO:0071555; P:cell wall organization; IEA:UniProtKB-KW.
DR GO; GO:0009252; P:peptidoglycan biosynthetic process; IEA:UniProtKB-KW.
DR GO; GO:0009254; P:peptidoglycan turnover; IEA:UniProtKB-UniRule.
DR GO; GO:0008360; P:regulation of cell shape; IEA:UniProtKB-KW.
DR Gene3D; 3.20.20.300; -; 1.
DR HAMAP; MF_00364; NagZ; 1.
DR InterPro; IPR022956; Beta_hexosaminidase_bac.
DR InterPro; IPR019800; Glyco_hydro_3_AS.
DR InterPro; IPR001764; Glyco_hydro_3_N.
DR InterPro; IPR036962; Glyco_hydro_3_N_sf.
DR InterPro; IPR017853; Glycoside_hydrolase_SF.
DR Pfam; PF00933; Glyco_hydro_3; 1.
DR SUPFAM; SSF51445; SSF51445; 1.
DR PROSITE; PS00775; GLYCOSYL_HYDROL_F3; 1.
PE 3: Inferred from homology;
KW Cell cycle; Cell division; Cell shape; Cell wall biogenesis/degradation;
KW Cytoplasm; Glycosidase; Hydrolase; Peptidoglycan synthesis.
FT CHAIN 1..341
FT /note="Beta-hexosaminidase"
FT /id="PRO_1000121059"
FT ACT_SITE 176
FT /note="Proton donor/acceptor"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00364"
FT ACT_SITE 248
FT /note="Nucleophile"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00364"
FT BINDING 62
FT /ligand="substrate"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00364"
FT BINDING 70
FT /ligand="substrate"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00364"
FT BINDING 133
FT /ligand="substrate"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00364"
FT BINDING 163..164
FT /ligand="substrate"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00364"
FT SITE 174
FT /note="Important for catalytic activity"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00364"
SQ SEQUENCE 341 AA; 37575 MW; 4655EF360F7AAC00 CRC64;
MGPVMLDVKG YELDAEEREI LAHPLVGGLI LFTRNYHDPA QLRELVRQIR AASRNHLVVA
VDQEGGRVQR FREGFTRLPA AQSFAALSGM EEGGKLAQEA GWLMASEMIA MDIDISFAPV
LDVGHISAAI GERSYHADPQ KALAIASRFI DGMHEAGMKT TGKHFPGHGA VTADSHKETP
CDPRPQAEIR AKDMSVFSSL IRENKLDAIM PAHVIYSDVD PRPASGSPYW LKTVLRQELG
FDGVIFSDDL SMEGAAIMGS YAERGQASLD AGCDMILVCN NRKGAVSVLD NLSPIKAERV
TRLYHKGSFS RQELMDSARW KAISTRLNQL HERWQEEKAG H