Structure of PDB 1o23 Chain B Binding Site BS01

Receptor Information
>1o23 Chain B (length=272) Species: 9913 (Bos taurus) [Search protein sequence] [Download receptor structure] [Download structure with residue number starting from 1] [View receptor structure]
LTACPEESPLLVGPMLIEFNIPVDLKLVEQQNPKVKLGGRYTPMDCISPH
KVAIIIPFRNRQEHLKYWLYYLHPILQRQQLDYGIYVINQAGESMFNRAK
LLNVGFKEALKDYDYNCFVFSDVDLIPMNDHNTYRCFSQPRHISVAMDKF
GFSLPYVQYFGGVSALSKQQFLSINGFPNNYWGWGGEDDDIYNRLAFRGM
SVSRPNAVIGKCRMIRHSRDKKNEPNPQRFDRIAHTKETMLSDGLNSLTY
MVLEVQRYPLYTKITVDIGTPS
Ligand information
Ligand IDMN
InChIInChI=1S/Mn/q+2
InChIKeyWAEMQWOKJMHJLA-UHFFFAOYSA-N
SMILES
SoftwareSMILES
ACDLabs 10.04
OpenEye OEToolkits 1.5.0		[Mn+2]
CACTVS 3.341[Mn++]
FormulaMn
NameMANGANESE (II) ION
ChEMBL
DrugBankDB06757
ZINC
PDB chain1o23 Chain B Residue 807 [Download ligand structure] [Download structure with residue number starting from 1] [View ligand structure]
Receptor-Ligand Complex Structure
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PDB1o23 Alpha-Lactalbumin (La) Stimulates Milk Beta-1,4-Galactosyltransferase I (Beta 4Gal-T1) to Transfer Glucose from Udp-Glucose to N-Acetylglucosamine. Crystal Structure of Beta 4Gal-T1 X La Complex with Udp-Glc.
Resolution2.32 Å
Binding residue
(original residue number in PDB)		D254 M344 H347
Binding residue
(residue number reindexed from 1)		D124 M214 H217
Annotation score1
Enzymatic activity
Catalytic site (original residue number in PDB) D252 D254 W314 E317 D318 M344 H347 R349
Catalytic site (residue number reindexed from 1) D122 D124 W184 E187 D188 M214 H217 R219
Enzyme Commision number 2.4.1.-
2.4.1.22: lactose synthase.
2.4.1.275: neolactotriaosylceramide beta-1,4-galactosyltransferase.
2.4.1.38: beta-N-acetylglucosaminylglycopeptide beta-1,4-galactosyltransferase.
2.4.1.90: N-acetyllactosamine synthase.
Gene Ontology
Molecular Function
GO:0016757 glycosyltransferase activity
Biological Process
GO:0005975 carbohydrate metabolic process

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Molecular Function
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Biological Process
External links
PDB RCSB:1o23, PDBe:1o23, PDBj:1o23
PDBsum1o23
PubMed11485999
UniProtP08037|B4GT1_BOVIN Beta-1,4-galactosyltransferase 1 (Gene Name=B4GALT1)

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