B4GT3_PONAB
ID B4GT3_PONAB Reviewed; 393 AA.
AC Q5NVN3;
DT 21-JUN-2005, integrated into UniProtKB/Swiss-Prot.
DT 04-JAN-2005, sequence version 1.
DT 03-AUG-2022, entry version 87.
DE RecName: Full=Beta-1,4-galactosyltransferase 3;
DE Short=Beta-1,4-GalTase 3;
DE Short=Beta4Gal-T3;
DE Short=b4Gal-T3;
DE EC=2.4.1.- {ECO:0000250|UniProtKB:O60512};
DE AltName: Full=Beta-N-acetylglucosaminyl-glycolipid beta-1,4-galactosyltransferase;
DE AltName: Full=Beta-N-acetylglucosaminylglycopeptide beta-1,4-galactosyltransferase;
DE EC=2.4.1.38 {ECO:0000250|UniProtKB:O60512};
DE AltName: Full=N-acetyllactosamine synthase;
DE EC=2.4.1.90 {ECO:0000250|UniProtKB:O60512};
DE AltName: Full=Nal synthase;
DE AltName: Full=Neolactotriaosylceramide beta-1,4-galactosyltransferase;
DE EC=2.4.1.275;
DE AltName: Full=UDP-Gal:beta-GlcNAc beta-1,4-galactosyltransferase 3;
DE AltName: Full=UDP-galactose:beta-N-acetylglucosamine beta-1,4-galactosyltransferase 3;
GN Name=B4GALT3;
OS Pongo abelii (Sumatran orangutan) (Pongo pygmaeus abelii).
OC Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi; Mammalia;
OC Eutheria; Euarchontoglires; Primates; Haplorrhini; Catarrhini; Hominidae;
OC Pongo.
OX NCBI_TaxID=9601;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE MRNA].
RC TISSUE=Brain cortex;
RG The German cDNA consortium;
RL Submitted (NOV-2004) to the EMBL/GenBank/DDBJ databases.
CC -!- FUNCTION: Responsible for the synthesis of complex-type N-linked
CC oligosaccharides in many glycoproteins as well as the carbohydrate
CC moieties of glycolipids. {ECO:0000250|UniProtKB:O60512}.
CC -!- CATALYTIC ACTIVITY:
CC Reaction=an N-acetyl-beta-D-glucosaminyl derivative + UDP-alpha-D-
CC galactose = a beta-D-galactosyl-(1->4)-N-acetyl-beta-D-glucosaminyl
CC derivative + H(+) + UDP; Xref=Rhea:RHEA:22932, ChEBI:CHEBI:15378,
CC ChEBI:CHEBI:58223, ChEBI:CHEBI:61631, ChEBI:CHEBI:66914,
CC ChEBI:CHEBI:133507; EC=2.4.1.38;
CC Evidence={ECO:0000250|UniProtKB:O60512};
CC PhysiologicalDirection=left-to-right; Xref=Rhea:RHEA:22933;
CC Evidence={ECO:0000250|UniProtKB:O60512};
CC -!- CATALYTIC ACTIVITY:
CC Reaction=N-acetyl-D-glucosamine + UDP-alpha-D-galactose = beta-D-
CC galactosyl-(1->4)-N-acetyl-D-glucosamine + H(+) + UDP;
CC Xref=Rhea:RHEA:17745, ChEBI:CHEBI:15378, ChEBI:CHEBI:58223,
CC ChEBI:CHEBI:60152, ChEBI:CHEBI:66914, ChEBI:CHEBI:506227;
CC EC=2.4.1.90; Evidence={ECO:0000250|UniProtKB:O60512};
CC PhysiologicalDirection=left-to-right; Xref=Rhea:RHEA:17746;
CC Evidence={ECO:0000250|UniProtKB:O60512};
CC -!- CATALYTIC ACTIVITY:
CC Reaction=a beta-D-GlcNAc-(1->3)-beta-D-Gal-(1->4)-beta-D-Glc-(1<->1)-
CC Cer(d18:1(4E)) + UDP-alpha-D-galactose = a neolactoside
CC nLc4Cer(d18:1(4E)) + H(+) + UDP; Xref=Rhea:RHEA:31499,
CC ChEBI:CHEBI:15378, ChEBI:CHEBI:17006, ChEBI:CHEBI:17103,
CC ChEBI:CHEBI:58223, ChEBI:CHEBI:66914; EC=2.4.1.275;
CC Evidence={ECO:0000250|UniProtKB:O60512};
CC PhysiologicalDirection=left-to-right; Xref=Rhea:RHEA:31500;
CC Evidence={ECO:0000250|UniProtKB:O60512};
CC -!- CATALYTIC ACTIVITY:
CC Reaction=beta-D-glucosylceramide + UDP-alpha-D-galactose = beta-D-
CC galactosyl-(1->4)-beta-D-glucosyl-(1<->1)-ceramide + H(+) + UDP;
CC Xref=Rhea:RHEA:62552, ChEBI:CHEBI:15378, ChEBI:CHEBI:58223,
CC ChEBI:CHEBI:66914, ChEBI:CHEBI:79208, ChEBI:CHEBI:83264;
CC Evidence={ECO:0000250|UniProtKB:O60512};
CC PhysiologicalDirection=left-to-right; Xref=Rhea:RHEA:62553;
CC Evidence={ECO:0000250|UniProtKB:O60512};
CC -!- CATALYTIC ACTIVITY:
CC Reaction=a neolactoside IV(3)-beta-GlcNAc-nLc4Cer + UDP-alpha-D-
CC galactose = beta-D-galactosyl-(1->4)-N-acetyl-beta-D-glucosaminyl-
CC (1->3)-beta-D-galactosyl-(1->4)-N-acetyl-beta-D-glucosaminyl-(1->3)-
CC beta-D-galactosyl-(1->4)-beta-D-glucosyl-(1<->1')-ceramide + H(+) +
CC UDP; Xref=Rhea:RHEA:62548, ChEBI:CHEBI:15378, ChEBI:CHEBI:58223,
CC ChEBI:CHEBI:66914, ChEBI:CHEBI:90357, ChEBI:CHEBI:144378;
CC Evidence={ECO:0000250|UniProtKB:O60512};
CC PhysiologicalDirection=left-to-right; Xref=Rhea:RHEA:62549;
CC Evidence={ECO:0000250|UniProtKB:O60512};
CC -!- COFACTOR:
CC Name=Mn(2+); Xref=ChEBI:CHEBI:29035; Evidence={ECO:0000250};
CC -!- PATHWAY: Protein modification; protein glycosylation.
CC {ECO:0000250|UniProtKB:O60512}.
CC -!- SUBCELLULAR LOCATION: Golgi apparatus, Golgi stack membrane
CC {ECO:0000250}; Single-pass type II membrane protein {ECO:0000250}.
CC Note=Trans cisternae of Golgi stack. {ECO:0000250}.
CC -!- SIMILARITY: Belongs to the glycosyltransferase 7 family. {ECO:0000305}.
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DR EMBL; CR925982; CAI29630.1; -; mRNA.
DR RefSeq; NP_001127681.1; NM_001134209.1.
DR AlphaFoldDB; Q5NVN3; -.
DR SMR; Q5NVN3; -.
DR STRING; 9601.ENSPPYP00000000709; -.
DR CAZy; GT7; Glycosyltransferase Family 7.
DR Ensembl; ENSPPYT00000000736; ENSPPYP00000000709; ENSPPYG00000000607.
DR GeneID; 100174763; -.
DR KEGG; pon:100174763; -.
DR CTD; 8703; -.
DR eggNOG; KOG3916; Eukaryota.
DR GeneTree; ENSGT00940000158549; -.
DR InParanoid; Q5NVN3; -.
DR OrthoDB; 1201618at2759; -.
DR UniPathway; UPA00378; -.
DR Proteomes; UP000001595; Chromosome 1.
DR GO; GO:0005829; C:cytosol; IEA:Ensembl.
DR GO; GO:0032580; C:Golgi cisterna membrane; IEA:UniProtKB-SubCell.
DR GO; GO:0000139; C:Golgi membrane; IEA:UniProt.
DR GO; GO:0016021; C:integral component of membrane; IEA:UniProtKB-KW.
DR GO; GO:0003831; F:beta-N-acetylglucosaminylglycopeptide beta-1,4-galactosyltransferase activity; IEA:UniProtKB-EC.
DR GO; GO:0046872; F:metal ion binding; IEA:UniProtKB-KW.
DR GO; GO:0003945; F:N-acetyllactosamine synthase activity; IEA:UniProtKB-EC.
DR GO; GO:0005975; P:carbohydrate metabolic process; IEA:InterPro.
DR GO; GO:0006682; P:galactosylceramide biosynthetic process; IEA:Ensembl.
DR GO; GO:0006486; P:protein glycosylation; IEA:UniProtKB-UniPathway.
DR Gene3D; 3.90.550.10; -; 1.
DR InterPro; IPR003859; Galactosyl_T.
DR InterPro; IPR027791; Galactosyl_T_C.
DR InterPro; IPR027995; Galactosyl_T_N.
DR InterPro; IPR029044; Nucleotide-diphossugar_trans.
DR PANTHER; PTHR19300; PTHR19300; 1.
DR Pfam; PF02709; Glyco_transf_7C; 1.
DR Pfam; PF13733; Glyco_transf_7N; 1.
DR PRINTS; PR02050; B14GALTRFASE.
DR SUPFAM; SSF53448; SSF53448; 1.
PE 2: Evidence at transcript level;
KW Disulfide bond; Glycoprotein; Glycosyltransferase; Golgi apparatus;
KW Lipid metabolism; Manganese; Membrane; Metal-binding; Reference proteome;
KW Signal-anchor; Transferase; Transmembrane; Transmembrane helix.
FT CHAIN 1..393
FT /note="Beta-1,4-galactosyltransferase 3"
FT /id="PRO_0000080539"
FT TOPO_DOM 1..10
FT /note="Cytoplasmic"
FT /evidence="ECO:0000255"
FT TRANSMEM 11..31
FT /note="Helical; Signal-anchor for type II membrane protein"
FT /evidence="ECO:0000255"
FT TOPO_DOM 32..393
FT /note="Lumenal"
FT /evidence="ECO:0000255"
FT REGION 339..393
FT /note="Disordered"
FT /evidence="ECO:0000256|SAM:MobiDB-lite"
FT BINDING 130..134
FT /ligand="UDP-alpha-D-galactose"
FT /ligand_id="ChEBI:CHEBI:66914"
FT /evidence="ECO:0000250"
FT BINDING 169..171
FT /ligand="UDP-alpha-D-galactose"
FT /ligand_id="ChEBI:CHEBI:66914"
FT /evidence="ECO:0000250"
FT BINDING 196..197
FT /ligand="UDP-alpha-D-galactose"
FT /ligand_id="ChEBI:CHEBI:66914"
FT /evidence="ECO:0000250"
FT BINDING 197
FT /ligand="Mn(2+)"
FT /ligand_id="ChEBI:CHEBI:29035"
FT /evidence="ECO:0000250"
FT BINDING 226
FT /ligand="UDP-alpha-D-galactose"
FT /ligand_id="ChEBI:CHEBI:66914"
FT /evidence="ECO:0000250"
FT BINDING 258
FT /ligand="UDP-alpha-D-galactose"
FT /ligand_id="ChEBI:CHEBI:66914"
FT /evidence="ECO:0000250"
FT BINDING 260..263
FT /ligand="N-acetyl-D-glucosamine"
FT /ligand_id="ChEBI:CHEBI:506227"
FT /evidence="ECO:0000250"
FT BINDING 291..293
FT /ligand="UDP-alpha-D-galactose"
FT /ligand_id="ChEBI:CHEBI:66914"
FT /evidence="ECO:0000250"
FT BINDING 291
FT /ligand="Mn(2+)"
FT /ligand_id="ChEBI:CHEBI:29035"
FT /evidence="ECO:0000250"
FT BINDING 303
FT /ligand="N-acetyl-D-glucosamine"
FT /ligand_id="ChEBI:CHEBI:506227"
FT /evidence="ECO:0000250"
FT CARBOHYD 57
FT /note="N-linked (GlcNAc...) asparagine"
FT /evidence="ECO:0000255"
FT CARBOHYD 166
FT /note="N-linked (GlcNAc...) asparagine"
FT /evidence="ECO:0000255"
FT CARBOHYD 337
FT /note="N-linked (GlcNAc...) asparagine"
FT /evidence="ECO:0000255"
FT CARBOHYD 385
FT /note="N-linked (GlcNAc...) asparagine"
FT /evidence="ECO:0000255"
FT DISULFID 77..119
FT /evidence="ECO:0000250"
FT DISULFID 190..209
FT /evidence="ECO:0000250"
SQ SEQUENCE 393 AA; 43922 MW; CA0BF9562D32D1F4 CRC64;
MLRRLLERPC TLALLVGSQL AVMMYLSLGG FRSLSALFGR DQGPTFDYSH PRDVYSNLSH
LPGAPGGPPA PQGLPYCPER SPLLVGPVSV SFSPVPSLAE IVERNPRVEP GGRYRPAGCE
PRSRTAIIVP HRAREHHLRL LLYHLHPFLQ RQQLAYGIYV IHQAGNGTFN RAKLLNVGVR
EALRDEEWDC LFLHDVDLLP ENDHNLYVCD PRGPRHVAVA MNKFGYSLPY PQYFGGVSAL
TPDQYLKMNG FPNEYWGWGG EDDDIATRVR LAGMKISRPP TSVGHYKMVK HRGDKGNEEN
PHRFDLLVRT QNSWTQDGMN SLTYQLLARE LGPLYTNITA DIGTDPRGPR APSGPRYPPG
SSQAFRQEML QRRPPARPGP PPTANHTALR GSH
