ID   NAGZ_ACTP7              Reviewed;         345 AA.
AC   B3GXZ7;
DT   14-APR-2009, integrated into UniProtKB/Swiss-Prot.
DT   22-JUL-2008, sequence version 1.
DT   03-AUG-2022, entry version 68.
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=APP7_1168;
OS   Actinobacillus pleuropneumoniae serotype 7 (strain AP76).
OC   Bacteria; Proteobacteria; Gammaproteobacteria; Pasteurellales;
OC   Pasteurellaceae; Actinobacillus.
OX   NCBI_TaxID=537457;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=AP76;
RA   Linke B., Buettner F., Martinez-Arias R., Goesmann A., Baltes N.,
RA   Tegetmeyer H., Singh M., Gerlach G.F.;
RT   "Genome and proteome analysis of A. pleuropneumoniae serotype 7.";
RL   Submitted (JUN-2008) to the EMBL/GenBank/DDBJ databases.
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; CP001091; ACE61820.1; -; Genomic_DNA.
DR   RefSeq; WP_011848533.1; NC_010939.1.
DR   AlphaFoldDB; B3GXZ7; -.
DR   SMR; B3GXZ7; -.
DR   CAZy; GH3; Glycoside Hydrolase Family 3.
DR   EnsemblBacteria; ACE61820; ACE61820; APP7_1168.
DR   KEGG; apa:APP7_1168; -.
DR   PATRIC; fig|416269.6.peg.1159; -.
DR   HOGENOM; CLU_008392_0_0_6; -.
DR   OMA; WQMAAEM; -.
DR   BioCyc; APLE537457:APP7_RS05945-MON; -.
DR   UniPathway; UPA00544; -.
DR   Proteomes; UP000001226; 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..345
FT                   /note="Beta-hexosaminidase"
FT                   /id="PRO_1000121051"
FT   ACT_SITE        175
FT                   /note="Proton donor/acceptor"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00364"
FT   ACT_SITE        247
FT                   /note="Nucleophile"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00364"
FT   BINDING         60
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00364"
FT   BINDING         68
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00364"
FT   BINDING         132
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00364"
FT   BINDING         162..163
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00364"
FT   SITE            173
FT                   /note="Important for catalytic activity"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00364"
SQ   SEQUENCE   345 AA;  38994 MW;  AB16DBBA7B4F3CDD CRC64;
     MLLIDIKDKE LSQEEVEILE HPLVSGLILF SRNFHDKVQL EALVKSIRQR VKKPLLITVD
     QEGGRVQRFR EGFTKLPAMQ AFHTLAKNPQ ESTALARQTG WLMAAEMFAL DIDLSFAPVL
     DLGHQCKAIG DRSFGENPDA MLPIAEAFID GMREMGMATT GKHFPGHGHV LADSHLETPF
     DDRPKEAIFN RDILPFKQLI SKGKLSAIMP AHVIYTQCDS QPASGSEYWL KQVLRNQLNF
     NGVIFSDDLG MKGAGFMGNF VERSEKAIHA GCDLLLLCNE PEGVIQVLDG LKYQPTKTQT
     ERHISLMKRK TVRWNELEAS PRYQQAQQRL TALQNDWLEY KAQHC