1AH1

CTLA-4, NMR, 20 STRUCTURES

• PDB DOI: https://doi.org/10.2210/pdb1AH1/pdb

• Classification: IMMUNORECEPTOR
• Organism(s): Homo sapiens
• Expression System: Cricetulus griseus
• Mutation(s): No 


• Deposited: 1997-04-11 Released: 1998-04-15 
• Deposition Author(s): Metzler, W.J., Bajorath, J., Fenderson, W., Shaw, S.-Y., Peach, R., Constantine, K.L., Naemura, J., Leytze, G., Lavoie, T.B., Mueller, L., Linsley, P.S.

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Experimental Data Snapshot

• Method: SOLUTION NMR
• Conformers Calculated: 50 
• Conformers Submitted: 20 
• Selection Criteria: LEAST RESTRAINT VIOLATION 

Literature

Solution structure of human CTLA-4 and delineation of a CD80/CD86 binding site conserved in CD28.

Metzler, W.J., Bajorath, J., Fenderson, W., Shaw, S.Y., Constantine, K.L., Naemura, J., Leytze, G., Peach, R.J., Lavoie, T.B., Mueller, L., Linsley, P.S.

(1997) Nat Struct Biol 4: 527-531

• PubMed: 9228944 
• DOI: https://doi.org/10.1038/nsb0797-527
• Primary Citation of Related Structures:  
  1AH1


• PubMed Abstract: 
  

  The structure of human CTLA-4 reveals that residues Met 99, Tyr 100 and Tyr 104 of the M99YPPPY104 motif are adjacent to a patch of charged surface residues on the A'GFCC' face of the protein. Mutation of these residues, which are conserved in the CTLA-4/CD28 family, significantly reduces binding to CD80 and/or CD86, implicating this patch as a ligand binding site.

Biological Assembly 1  

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

Biological assembly 1 assigned by authors.

Macromolecule Content

• Total Structure Weight: 15.33 kDa 
• Atom Count: 1,063 
• Modelled Residue Count: 129 
• Deposited Residue Count: 129 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
CTLA-4	A	129	Homo sapiens	Mutation(s): 0
UniProt & NIH Common Fund Data Resources
Find proteins for P16410 (Homo sapiens) Explore P16410  Go to UniProtKB:  P16410
PHAROS:  P16410 GTEx:  ENSG00000163599
Glycosylation
Glycosylation Sites: 2		Go to GlyGen: P16410-1

Oligosaccharides

Help

Entity ID: 2
Molecule	Chains	Length	2D Diagram	Glycosylation	3D Interactions
beta-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-[beta-L-fucopyranose-(1-6)]2-acetamido-2-deoxy-beta-D-glucopyranose	B	4		N-Glycosylation
Glycosylation Resources
GlyTouCan:  G86566TX GlyCosmos:  G86566TX GlyGen:  G86566TX

Entity ID: 3
Molecule	Chains	Length	2D Diagram	Glycosylation	3D Interactions
beta-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-[alpha-L-fucopyranose-(1-6)]2-acetamido-2-deoxy-beta-D-glucopyranose	C	4		N-Glycosylation
Glycosylation Resources
GlyTouCan:  G32152BH GlyCosmos:  G32152BH GlyGen:  G32152BH

Experimental Data & Validation

Experimental Data

• Method: SOLUTION NMR
• Conformers Calculated: 50 
• Conformers Submitted: 20 
• Selection Criteria: LEAST RESTRAINT VIOLATION 

Structure Validation

Entry History 

Deposition Data

• Released Date: 1998-04-15 
Deposition Author(s): Metzler, W.J., Bajorath, J., Fenderson, W., Shaw, S.-Y., Peach, R., Constantine, K.L., Naemura, J., Leytze, G., Lavoie, T.B., Mueller, L., Linsley, P.S.

Revision History  

• Version 1.0: 1998-04-15
  Type: Initial release
  
• Version 1.1: 2008-03-24
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Non-polymer description, Version format compliance
• Version 2.0: 2020-07-29
  Type: Remediation
  Reason: Carbohydrate remediation
  Changes: Advisory, Atomic model, Data collection, Database references, Derived calculations, Other, Structure summary
• Version 2.1: 2024-11-20
  Changes: Data collection, Database references, Structure summary