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- PDB-2a8u: Crystal Structure of Human Galactosyltransferase (GTB) Complexed ... -

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Basic information

Entry
Database: PDB / ID: 2a8u
TitleCrystal Structure of Human Galactosyltransferase (GTB) Complexed with Beta-Methyl Lactoside
ComponentsABO blood group (transferase A, alpha 1-3-N-acetylgalactosaminyltransferase; transferase B, alpha 1-3-galactosyltransferase)
KeywordsTRANSFERASE / GTB / Blood group / ABO(H) / glycosyltransferase / retaining
Function / homology
Function and homology information


fucosylgalactoside 3-alpha-galactosyltransferase / glycoprotein-fucosylgalactoside alpha-N-acetylgalactosaminyltransferase / glycoprotein-fucosylgalactoside alpha-N-acetylgalactosaminyltransferase activity / fucosylgalactoside 3-alpha-galactosyltransferase activity / ABO blood group biosynthesis / lipid glycosylation / Golgi cisterna membrane / protein glycosylation / antigen binding / manganese ion binding ...fucosylgalactoside 3-alpha-galactosyltransferase / glycoprotein-fucosylgalactoside alpha-N-acetylgalactosaminyltransferase / glycoprotein-fucosylgalactoside alpha-N-acetylgalactosaminyltransferase activity / fucosylgalactoside 3-alpha-galactosyltransferase activity / ABO blood group biosynthesis / lipid glycosylation / Golgi cisterna membrane / protein glycosylation / antigen binding / manganese ion binding / vesicle / carbohydrate metabolic process / Golgi membrane / nucleotide binding / Golgi apparatus / extracellular region
Similarity search - Function
Glycosyl transferase, family 6 / Glycosyltransferase family 6 / Spore Coat Polysaccharide Biosynthesis Protein SpsA; Chain A / Spore Coat Polysaccharide Biosynthesis Protein SpsA; Chain A / Nucleotide-diphospho-sugar transferases / Alpha-Beta Complex / Alpha Beta
Similarity search - Domain/homology
Beta-Methyl Lactoside / : / : / URIDINE-5'-DIPHOSPHATE / Histo-blood group ABO system transferase
Similarity search - Component
Biological speciesHomo sapiens (human)
MethodX-RAY DIFFRACTION / MOLECULAR REPLACEMENT / Resolution: 1.69 Å
AuthorsLetts, J.A. / Rose, N.L. / Fang, Y.R. / Barry, C.H. / Borisova, S.N. / Seto, N.O. / Palcic, M.M. / Evans, S.V.
CitationJournal: J.Biol.Chem. / Year: 2006
Title: Differential Recognition of the Type I and II H Antigen Acceptors by the Human ABO(H) Blood Group A and B Glycosyltransferases.
Authors: Letts, J.A. / Rose, N.L. / Fang, Y.R. / Barry, C.H. / Borisova, S.N. / Seto, N.O. / Palcic, M.M. / Evans, S.V.
History
DepositionJul 9, 2005Deposition site: RCSB / Processing site: RCSB
Revision 1.0Dec 13, 2005Provider: repository / Type: Initial release
Revision 1.1Apr 30, 2008Group: Version format compliance
Revision 1.2Jul 13, 2011Group: Derived calculations / Version format compliance
Revision 2.0Jul 29, 2020Group: Atomic model / Data collection ...Atomic model / Data collection / Database references / Derived calculations / Non-polymer description / Structure summary
Category: atom_site / chem_comp ...atom_site / chem_comp / entity / entity_name_com / pdbx_branch_scheme / pdbx_chem_comp_identifier / pdbx_entity_branch / pdbx_entity_branch_descriptor / pdbx_entity_branch_link / pdbx_entity_branch_list / pdbx_entity_nonpoly / pdbx_molecule_features / pdbx_nonpoly_scheme / pdbx_struct_conn_angle / struct_asym / struct_conn / struct_conn_type / struct_ref_seq_dif / struct_site / struct_site_gen
Item: _atom_site.B_iso_or_equiv / _atom_site.Cartn_x ..._atom_site.B_iso_or_equiv / _atom_site.Cartn_x / _atom_site.Cartn_y / _atom_site.Cartn_z / _atom_site.auth_asym_id / _atom_site.auth_atom_id / _atom_site.auth_comp_id / _atom_site.auth_seq_id / _atom_site.label_asym_id / _atom_site.label_atom_id / _atom_site.label_comp_id / _atom_site.label_entity_id / _atom_site.occupancy / _atom_site.type_symbol / _chem_comp.formula / _chem_comp.formula_weight / _chem_comp.id / _chem_comp.mon_nstd_flag / _chem_comp.name / _chem_comp.pdbx_synonyms / _chem_comp.type / _entity.formula_weight / _entity.pdbx_description / _entity.pdbx_number_of_molecules / _entity.src_method / _entity.type / _pdbx_struct_conn_angle.ptnr1_auth_comp_id / _pdbx_struct_conn_angle.ptnr1_auth_seq_id / _pdbx_struct_conn_angle.ptnr1_label_asym_id / _pdbx_struct_conn_angle.ptnr1_label_atom_id / _pdbx_struct_conn_angle.ptnr1_label_comp_id / _pdbx_struct_conn_angle.ptnr1_label_seq_id / _pdbx_struct_conn_angle.ptnr2_auth_comp_id / _pdbx_struct_conn_angle.ptnr2_auth_seq_id / _pdbx_struct_conn_angle.ptnr2_label_asym_id / _pdbx_struct_conn_angle.ptnr2_label_atom_id / _pdbx_struct_conn_angle.ptnr2_label_comp_id / _pdbx_struct_conn_angle.ptnr3_auth_comp_id / _pdbx_struct_conn_angle.ptnr3_auth_seq_id / _pdbx_struct_conn_angle.ptnr3_label_asym_id / _pdbx_struct_conn_angle.ptnr3_label_atom_id / _pdbx_struct_conn_angle.ptnr3_label_comp_id / _pdbx_struct_conn_angle.ptnr3_label_seq_id / _pdbx_struct_conn_angle.value / _struct_asym.entity_id / _struct_ref_seq_dif.details
Description: Carbohydrate remediation / Provider: repository / Type: Remediation
Revision 2.1Aug 23, 2023Group: Data collection / Database references ...Data collection / Database references / Refinement description / Structure summary
Category: chem_comp / chem_comp_atom ...chem_comp / chem_comp_atom / chem_comp_bond / database_2 / pdbx_initial_refinement_model
Item: _chem_comp.pdbx_synonyms / _database_2.pdbx_DOI / _database_2.pdbx_database_accession
Revision 2.2Nov 29, 2023Group: Database references / Category: pdbx_database_related / Item: _pdbx_database_related.db_name

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

Downloads & links

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Assembly

Deposited unit
A: ABO blood group (transferase A, alpha 1-3-N-acetylgalactosaminyltransferase; transferase B, alpha 1-3-galactosyltransferase)
hetero molecules


Theoretical massNumber of molelcules
Total (without water)36,01010
Polymers34,1561
Non-polymers1,8549
Water3,189177
1


  • Idetical with deposited unit
  • defined by author
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
2
A: ABO blood group (transferase A, alpha 1-3-N-acetylgalactosaminyltransferase; transferase B, alpha 1-3-galactosyltransferase)
hetero molecules

A: ABO blood group (transferase A, alpha 1-3-N-acetylgalactosaminyltransferase; transferase B, alpha 1-3-galactosyltransferase)
hetero molecules


Theoretical massNumber of molelcules
Total (without water)72,02120
Polymers68,3132
Non-polymers3,70818
Water362
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
crystal symmetry operation3_655-x+1,y,-z+1/21
Buried area9330 Å2
ΔGint-343 kcal/mol
Surface area21880 Å2
MethodPISA, PQS
Unit cell
Length a, b, c (Å)52.480, 150.690, 79.250
Angle α, β, γ (deg.)90.00, 90.00, 90.00
Int Tables number20
Space group name H-MC2221

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Components

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Protein / Sugars , 2 types, 2 molecules A

#1: Protein ABO blood group (transferase A, alpha 1-3-N-acetylgalactosaminyltransferase; transferase B, alpha 1-3-galactosyltransferase)


Mass: 34156.445 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Plasmid: PCW DELTA 1AC (E-H) / Production host: Escherichia coli (E. coli) / Strain (production host): BL21Gold / References: UniProt: P16442
#2: Polysaccharide beta-D-galactopyranose-(1-4)-methyl beta-D-glucopyranoside / Beta-Methyl Lactoside


Type: oligosaccharide, Oligosaccharide / Class: Glycan component / Mass: 356.323 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Details: oligosaccharide / References: Beta-Methyl Lactoside
DescriptorTypeProgram
DGalpb1-4DGlcp[1Me]b1-OMEGlycam Condensed SequenceGMML 1.0
WURCS=2.0/2,2,1/[a2122h-1b_1-5_1*OC][a2112h-1b_1-5]/1-2/a4-b1WURCSPDB2Glycan 1.1.0
[][methyl]{[(1+1)][b-D-Glcp]{[(4+1)][b-D-Galp]{}}}LINUCSPDB-CARE

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Non-polymers , 5 types, 185 molecules

#3: Chemical ChemComp-UDP / URIDINE-5'-DIPHOSPHATE / Uridine diphosphate


Type: RNA linking / Mass: 404.161 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: C9H14N2O12P2 / Comment: UDP*YM
#4: Chemical
ChemComp-HG / MERCURY (II) ION / Mercury (element)


Mass: 200.590 Da / Num. of mol.: 5 / Source method: obtained synthetically / Formula: Hg
#5: Chemical ChemComp-CL / CHLORIDE ION / Chloride


Mass: 35.453 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: Cl
#6: Chemical ChemComp-MN / MANGANESE (II) ION


Mass: 54.938 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: Mn
#7: Water ChemComp-HOH / water / Water


Mass: 18.015 Da / Num. of mol.: 177 / Source method: isolated from a natural source / Formula: H2O

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Experimental details

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Experiment

ExperimentMethod: X-RAY DIFFRACTION / Number of used crystals: 1

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Sample preparation

CrystalDensity Matthews: 2.29 Å3/Da / Density % sol: 46.37 %

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Data collection

DiffractionMean temperature: 113 K
Diffraction sourceSource: ROTATING ANODE / Type: RIGAKU MICROMAX-002 / Wavelength: 1.5418 / Wavelength: 1.5418 Å
DetectorType: RIGAKU RAXIS IV++ / Detector: IMAGE PLATE / Date: Apr 12, 2005
RadiationProtocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelengthWavelength: 1.5418 Å / Relative weight: 1
ReflectionResolution: 1.69→20 Å / Num. all: 35620 / Num. obs: 35513 / % possible obs: 99.7 % / Observed criterion σ(I): 16.6
Reflection shellResolution: 1.69→1.75 Å / % possible all: 99.5

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Processing

Software
NameVersionClassification
CrystalCleardata collection
CrystalClear(MSC/RIGAKU)data reduction
CNSrefinement
CrystalClear(MSC/RIGAKU)data scaling
CNSphasing
RefinementMethod to determine structure: MOLECULAR REPLACEMENT
Starting model: 1LZ7

1lz7


Resolution: 1.69→20 Å
RfactorNum. reflection
Rfree0.232 -
Rwork0.208 -
all-35513
obs-35404
Refinement stepCycle: LAST / Resolution: 1.69→20 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms2154 0 56 177 2387
Refine LS restraints
Refine-IDTypeDev ideal
X-RAY DIFFRACTIONc_bond_d0.005
X-RAY DIFFRACTIONc_angle_deg1.3

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