5TJK

Crystal structure of GTA + A trisaccharide (native)

• PDB DOI: https://doi.org/10.2210/pdb5TJK/pdb

• Classification: TRANSFERASE
• Organism(s): Homo sapiens
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 2016-10-04 Released: 2017-06-14 
• Deposition Author(s): Legg, M.S.G., Gagnon, S.M.L., Evans, S.V.
• Funding Organization(s): Canadian Institutes of Health Research (CIHR)

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.45 Å
• R-Value Free: 0.193 
• R-Value Work: 0.182 
• R-Value Observed: 0.182 

Biological Assembly 1  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Monomer - A1 

Biological assembly 1 assigned by authors.

Biological Assembly 2  

Global Symmetry: Cyclic - C2  (Explore in 3D)
Global Stoichiometry: Homo 2-mer - A2 

Biological assembly 2 generated by PISA (software)

Macromolecule Content

• Total Structure Weight: 35.3 kDa 
• Atom Count: 2,576 
• Modelled Residue Count: 284 
• Deposited Residue Count: 297 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Histo-blood group ABO system transferase	A	297	Homo sapiens	Mutation(s): 0  Gene Names: ABO EC: 2.4.1.40 (PDB Primary Data), 2.4.1.37 (PDB Primary Data)
UniProt & NIH Common Fund Data Resources
Find proteins for P16442 (Homo sapiens) Explore P16442  Go to UniProtKB:  P16442
PHAROS:  P16442

Oligosaccharides

Help

Entity ID: 2
Molecule	Chains	Length	2D Diagram	Glycosylation	3D Interactions
alpha-L-fucopyranose-(1-2)-[2-acetamido-2-deoxy-alpha-D-galactopyranose-(1-3)]octyl beta-D-galactopyranoside	B	3	N/A	N/A
Glycosylation Resources
GlyTouCan:  G91316CJ GlyCosmos:  G91316CJ

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
GOL	C [auth A]	GLYCEROL C3 H8 O3 PEDCQBHIVMGVHV-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.45 Å
• R-Value Free: 0.193 
• R-Value Work: 0.182 
• R-Value Observed: 0.182 
• Space Group: C 2 2 2₁

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 52.55	α = 90
b = 148.66	β = 90
c = 79.79	γ = 90

Software Package:

Software Name	Purpose
REFMAC	refinement
d*TREK	data scaling
PDB_EXTRACT	data extraction
d*TREK	data reduction
PHASER	phasing

Structure Validation

Entry History & Funding Information

Deposition Data

• Released Date: 2017-06-14 
Deposition Author(s): Legg, M.S.G., Gagnon, S.M.L., Evans, S.V.

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Funding Organization	Location	Grant Number
Canadian Institutes of Health Research (CIHR)	Canada	MOP-77655

Revision History  

• Version 1.0: 2017-06-14
  Type: Initial release
  
• Version 1.1: 2017-09-27
  Changes: Database references
• Version 1.2: 2018-03-07
  Changes: Data collection
• Version 1.3: 2020-01-08
  Changes: Author supporting evidence
• Version 2.0: 2020-07-29
  Type: Remediation
  Reason: Carbohydrate remediation
  Changes: Advisory, Atomic model, Data collection, Derived calculations, Non-polymer description, Structure summary
• Version 2.1: 2023-10-04
  Changes: Data collection, Database references, Refinement description, Structure summary