ID A0A091W9J8_OPIHO Unreviewed; 389 AA.
AC A0A091W9J8;
DT 26-NOV-2014, integrated into UniProtKB/TrEMBL.
DT 26-NOV-2014, sequence version 1.
DT 27-MAR-2024, entry version 24.
DE RecName: Full=Beta-hexosaminidase subunit beta {ECO:0000256|ARBA:ARBA00040637};
DE EC=3.2.1.52 {ECO:0000256|ARBA:ARBA00012663};
DE AltName: Full=Beta-N-acetylhexosaminidase subunit beta {ECO:0000256|ARBA:ARBA00042342};
DE AltName: Full=N-acetyl-beta-glucosaminidase subunit beta {ECO:0000256|ARBA:ARBA00042832};
DE Flags: Fragment;
GN ORFNames=N306_04949 {ECO:0000313|EMBL:KFR12189.1};
OS Opisthocomus hoazin (Hoatzin) (Phasianus hoazin).
OC Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi;
OC Archelosauria; Archosauria; Dinosauria; Saurischia; Theropoda;
OC Coelurosauria; Aves; Neognathae; Opisthocomiformes; Opisthocomidae;
OC Opisthocomus.
OX NCBI_TaxID=30419 {ECO:0000313|EMBL:KFR12189.1, ECO:0000313|Proteomes:UP000053605};
RN [1] {ECO:0000313|EMBL:KFR12189.1, ECO:0000313|Proteomes:UP000053605}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=BGI_N306 {ECO:0000313|EMBL:KFR12189.1};
RA Zhang G., Li C.;
RT "Genome evolution of avian class.";
RL Submitted (APR-2014) to the EMBL/GenBank/DDBJ databases.
CC -!- CATALYTIC ACTIVITY:
CC Reaction=H2O + N-acetyl-beta-D-6-sulfogalactosaminyl-(1->4)-alpha-L-
CC iduronyl-(1->3)-N-acetyl-D-6-sulfogalactosamine = alpha-L-iduronyl-
CC (1->3)-N-acetyl-D-6-sulfogalactosamine + N-acetyl-D-6-
CC sulfogalactosamine; Xref=Rhea:RHEA:64384, ChEBI:CHEBI:15377,
CC ChEBI:CHEBI:152567, ChEBI:CHEBI:152568, ChEBI:CHEBI:153064;
CC Evidence={ECO:0000256|ARBA:ARBA00023541};
CC PhysiologicalDirection=left-to-right; Xref=Rhea:RHEA:64385;
CC Evidence={ECO:0000256|ARBA:ARBA00023541};
CC -!- CATALYTIC ACTIVITY:
CC Reaction=H2O + N-acetyl-beta-D-galactosaminyl-(1->4)-beta-D-3-
CC sulfogalactosyl-(1->4)-beta-D-glucosyl-(1<->1')-ceramide = a beta-D-
CC 3-sulfogalactosyl-(1->4)-beta-D-glucosyl-(1<->1')-ceramide + N-
CC acetyl-beta-D-galactosamine; Xref=Rhea:RHEA:48276, ChEBI:CHEBI:15377,
CC ChEBI:CHEBI:28497, ChEBI:CHEBI:90163, ChEBI:CHEBI:90164;
CC Evidence={ECO:0000256|ARBA:ARBA00023953};
CC PhysiologicalDirection=left-to-right; Xref=Rhea:RHEA:48277;
CC Evidence={ECO:0000256|ARBA:ARBA00023953};
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:0000256|ARBA:ARBA00001231};
CC -!- CATALYTIC ACTIVITY:
CC Reaction=a ganglioside GM2 (d18:1(4E)) + H2O = a ganglioside GM3
CC (d18:1(4E)) + N-acetyl-beta-D-galactosamine; Xref=Rhea:RHEA:47940,
CC ChEBI:CHEBI:15377, ChEBI:CHEBI:28497, ChEBI:CHEBI:60065,
CC ChEBI:CHEBI:71502; Evidence={ECO:0000256|ARBA:ARBA00043767};
CC PhysiologicalDirection=left-to-right; Xref=Rhea:RHEA:47941;
CC Evidence={ECO:0000256|ARBA:ARBA00043767};
CC -!- CATALYTIC ACTIVITY:
CC Reaction=a ganglioside GM2 + H2O = a ganglioside GM3 + N-acetyl-beta-D-
CC galactosamine; Xref=Rhea:RHEA:47968, ChEBI:CHEBI:15377,
CC ChEBI:CHEBI:28497, ChEBI:CHEBI:79210, ChEBI:CHEBI:79218;
CC Evidence={ECO:0000256|ARBA:ARBA00043827};
CC PhysiologicalDirection=left-to-right; Xref=Rhea:RHEA:47969;
CC Evidence={ECO:0000256|ARBA:ARBA00043827};
CC -!- CATALYTIC ACTIVITY:
CC Reaction=beta-D-GalNAc-(1->4)-alpha-L-IdoA-(1->3)-beta-D-GalNAc-4-
CC sulfate-(1->4)-alpha-L-IdoA-(1->3)-D-GalNAc-4-sulfate + H2O = alpha-
CC L-IdoA-(1->3)-beta-D-GalNAc-4-sulfate-(1->4)-alpha-L-IdoA-(1->3)-D-
CC GalNAc-4-sulfate + N-acetyl-D-galactosamine; Xref=Rhea:RHEA:64372,
CC ChEBI:CHEBI:15377, ChEBI:CHEBI:28037, ChEBI:CHEBI:152565,
CC ChEBI:CHEBI:152566; Evidence={ECO:0000256|ARBA:ARBA00023505};
CC PhysiologicalDirection=left-to-right; Xref=Rhea:RHEA:64373;
CC Evidence={ECO:0000256|ARBA:ARBA00023505};
CC -!- SUBCELLULAR LOCATION: Cytoplasmic vesicle, secretory vesicle, Cortical
CC granule {ECO:0000256|ARBA:ARBA00037865}. Lysosome
CC {ECO:0000256|ARBA:ARBA00004371}.
CC -!- SIMILARITY: Belongs to the glycosyl hydrolase 20 family.
CC {ECO:0000256|ARBA:ARBA00006285}.
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DR EMBL; KK735061; KFR12189.1; -; Genomic_DNA.
DR AlphaFoldDB; A0A091W9J8; -.
DR STRING; 30419.A0A091W9J8; -.
DR PhylomeDB; A0A091W9J8; -.
DR Proteomes; UP000053605; Unassembled WGS sequence.
DR GO; GO:0060473; C:cortical granule; IEA:UniProtKB-SubCell.
DR GO; GO:0005764; C:lysosome; IEA:UniProtKB-SubCell.
DR GO; GO:0004563; F:beta-N-acetylhexosaminidase activity; IEA:UniProtKB-EC.
DR GO; GO:0102148; F:N-acetyl-beta-D-galactosaminidase activity; IEA:UniProtKB-EC.
DR GO; GO:1901135; P:carbohydrate derivative metabolic process; IEA:UniProt.
DR GO; GO:0005975; P:carbohydrate metabolic process; IEA:InterPro.
DR CDD; cd06562; GH20_HexA_HexB-like; 1.
DR Gene3D; 3.30.379.10; Chitobiase/beta-hexosaminidase domain 2-like; 1.
DR Gene3D; 3.20.20.80; Glycosidases; 1.
DR InterPro; IPR025705; Beta_hexosaminidase_sua/sub.
DR InterPro; IPR015883; Glyco_hydro_20_cat.
DR InterPro; IPR017853; Glycoside_hydrolase_SF.
DR InterPro; IPR029018; Hex-like_dom2.
DR PANTHER; PTHR22600; BETA-HEXOSAMINIDASE; 1.
DR PANTHER; PTHR22600:SF38; BETA-HEXOSAMINIDASE SUBUNIT BETA; 1.
DR Pfam; PF00728; Glyco_hydro_20; 1.
DR PRINTS; PR00738; GLHYDRLASE20.
DR SUPFAM; SSF51445; (Trans)glycosidases; 1.
DR SUPFAM; SSF55545; beta-N-acetylhexosaminidase-like domain; 1.
PE 3: Inferred from homology;
KW Hydrolase {ECO:0000256|ARBA:ARBA00022801};
KW Reference proteome {ECO:0000313|Proteomes:UP000053605}.
FT DOMAIN 51..367
FT /note="Glycoside hydrolase family 20 catalytic"
FT /evidence="ECO:0000259|Pfam:PF00728"
FT ACT_SITE 206
FT /note="Proton donor"
FT /evidence="ECO:0000256|PIRSR:PIRSR625705-1"
FT NON_TER 1
FT /evidence="ECO:0000313|EMBL:KFR12189.1"
FT NON_TER 389
FT /evidence="ECO:0000313|EMBL:KFR12189.1"
SQ SEQUENCE 389 AA; 44762 MW; 7A2ACB12381548A7 CRC64;
HLTVTEPVAV LKAAEVWGAL RGLETFSQLV YEDYYGSFLV NESEINDFPR FAHRGILLDT
SRHYLPLKSI LTNLDAMAFN KFNVLHWHIV DDQSFPYQSI YFPELSDKGA YSYNHIYTPT
DVRLVIEYAR LRGIRVIPEF DTPGHTESWG KGQKDLLTPC YSGKQPTGSF GPVNPILNTT
YDFMTKFFKE ISSVFPDAYI HLGGDEVNFD CWKSNPEVKE FMKKQGFGFD YAKLESYYIQ
KILDIVSSYN KGYMVWQEVF DNKAQLKPDT VVEVWMGNNY ALELSSVTGA GFTAILAAPW
YLDYISYGQD WKKYYSVEPL NFPGSEKQKK LLIGGEACLW GEYVDATNLT PRLWPRASAV
GERLWSSRNV TNLQDVCKRL TNHRCRMLR
//
