2I7B

Structure of the naturally occuring mutant of human ABO(H) Blood group B glycosyltransferase: GTB/A268T

PDB DOI: https://doi.org/10.2210/pdb2I7B/pdb

Classification: TRANSFERASE
Organism(s): Homo sapiens
Expression System: Escherichia coli BL21
Mutation(s): Yes

Deposited: 2006-08-30 Released: 2007-05-22
Deposition Author(s): Letts, J.A., Evans, S.V.

Experimental Data Snapshot

Method: X-RAY DIFFRACTION
Resolution: 1.99 Å
R-Value Free: 0.231
R-Value Work: 0.185
R-Value Observed: 0.187

wwPDB Validation 3D Report Full Report

This is version 1.3 of the entry. See complete history.

Literature

Structural basis for red cell phenotypic changes in newly identified, naturally occurring subgroup mutants of the human blood group B glycosyltransferase.

Hosseini-Maaf, B., Letts, J.A., Persson, M., Smart, E., Lepennec, P.Y., Hustinx, H., Zhao, Z., Palcic, M.M., Evans, S.V., Chester, M.A., Olsson, M.L.

(2007) Transfusion 47: 864-875

PubMed: 17465952 Search on PubMed
DOI: https://doi.org/10.1111/j.1537-2995.2007.01203.x
Primary Citation of Related Structures:
2I7B

PubMed Abstract:
Four amino-acid-changing polymorphisms differentiate the blood group A and B alleles. Multiple missense mutations are associated with weak expression of A and B antigens but the structural changes causing subgroups have not been studied.

Organizational Affiliation

Division of Hematology and Transfusion Medicine, Department of Laboratory Medicine, Lund University and Blood Center, Lund University Hospital, Lund, Sweden.

Macromolecule Content

Total Structure Weight: 34.84 kDa
Atom Count: 2,335
Modelled Residue Count: 262
Deposited Residue Count: 292
Unique protein chains: 1

Macromolecules

Find similar proteins by:

(by identity cutoff) | 3D Structure

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
alpha 1-3-galactosyltransferase	A	292	Homo sapiens	Mutation(s): 1 Gene Names: ABO
UniProt & NIH Common Fund Data Resources
Find proteins for P16442 (Homo sapiens) Explore P16442 Go to UniProtKB: P16442
PHAROS: P16442
Entity Groups
Sequence Clusters	30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt Group	P16442
Sequence Annotations Expand
Reference Sequence

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram	3D Interactions
HG Query on HG Download Ideal Coordinates CCD File SDF format, chain B [auth A] SDF format, chain C [auth A] SDF format, chain D [auth A] SDF format, chain E [auth A] MOL2 format, chain B [auth A] MOL2 format, chain C [auth A] MOL2 format, chain D [auth A] MOL2 format, chain E [auth A]	B [auth A], C [auth A], D [auth A], E [auth A]	MERCURY (II) ION Hg BQPIGGFYSBELGY-UHFFFAOYSA-N		Interactions Focus chain B [auth A] Focus chain C [auth A] Focus chain D [auth A] Focus chain E [auth A] Interactions & Density Focus chain B [auth A] Focus chain C [auth A] Focus chain D [auth A] Focus chain E [auth A]

Experimental Data & Validation

Experimental Data

Method: X-RAY DIFFRACTION
Resolution: 1.99 Å
R-Value Free: 0.231
R-Value Work: 0.185
R-Value Observed: 0.187
Space Group: C 2 2 2₁

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 52.54	α = 90
b = 148.95	β = 90
c = 80	γ = 90

Software Package:

Software Name	Purpose
REFMAC	refinement
CrystalClear	data collection
d*TREK	data reduction
d*TREK	data scaling
MOLREP	phasing

Structure Validation

View Full Validation Report

Entry History

Deposition Data

Released Date: 2007-05-22

Deposition Author(s):

Letts, J.A.

Evans, S.V.

Revision History (Full details and data files)

Version 1.0: 2007-05-22
Type: Initial release
Version 1.1: 2008-05-01
Changes: Version format compliance
Version 1.2: 2011-07-13
Changes: Derived calculations, Version format compliance
Version 1.3: 2023-08-30
Changes: Data collection, Database references, Derived calculations, Refinement description