1KPV

High resolution crystal structure of the MHC class I complex H-2Kb/SEV9

• PDB DOI: https://doi.org/10.2210/pdb1KPV/pdb

• Classification: IMMUNE SYSTEM
• Organism(s): Mus musculus, Sendai virus (strain Enders)
• Expression System: Drosophila melanogaster
• Mutation(s): No 


• Deposited: 2002-01-02 Released: 2003-06-10 
• Deposition Author(s): Rudolph, M.G., Wilson, I.A.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.71 Å
• R-Value Free: 0.204 
• R-Value Work: 0.187 
• R-Value Observed: 0.188 

Starting Model: experimental

Literature

High Resolution Crystal Structure of H-2Kb/VSV8

Rudolph, M.G., Wilson, I.A.

To be published.

Biological Assembly 1  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Hetero 3-mer - A1B1C1 

Biological assembly 1 assigned by authors and generated by PISA (software)

Biological Assembly 2  

Global Symmetry: Cyclic - C2  (Explore in 3D)
Global Stoichiometry: Hetero 6-mer - A2B2C2 Pseudo Symmetry: Asymmetric - C1 
Pseudo Stoichiometry: Hetero 6-mer - A2B2C1D1 

Biological assembly 2 generated by PISA (software)

Macromolecule Content

• Total Structure Weight: 45.42 kDa 
• Atom Count: 3,552 
• Modelled Residue Count: 381 
• Deposited Residue Count: 382 
• Unique protein chains: 3

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
H-2 class I histocompatibility antigen, K-B alpha chain	A	274	Mus musculus	Mutation(s): 0
UniProt
Find proteins for P01901 (Mus musculus) Explore P01901  Go to UniProtKB:  P01901
Glycosylation
Glycosylation Sites: 1		Go to GlyGen: P01901-1

Entity ID: 2
Molecule	Chains	Sequence Length	Organism	Details	Image
beta-2-microglobulin	B	99	Mus musculus	Mutation(s): 0
UniProt & NIH Common Fund Data Resources
Find proteins for P01887 (Mus musculus) Explore P01887  Go to UniProtKB:  P01887
IMPC:  MGI:88127

Entity ID: 3
Molecule	Chains	Sequence Length	Organism	Details	Image
Nucleocapsid protein	C [auth P]	9	N/A	Mutation(s): 0
UniProt
Find proteins for P04857 (Sendai virus (strain Enders)) Explore P04857  Go to UniProtKB:  P04857

Oligosaccharides

Help

Entity ID: 4
Molecule	Chains	Length	2D Diagram	Glycosylation	3D Interactions
2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-[alpha-L-fucopyranose-(1-6)]2-acetamido-2-deoxy-beta-D-glucopyranose	D [auth C]	3		N-Glycosylation
Glycosylation Resources
GlyTouCan:  G21290RB GlyCosmos:  G21290RB GlyGen:  G21290RB

Small Molecules

Ligands 2 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
MPD	G [auth A], H [auth B], I [auth B]	(4S)-2-METHYL-2,4-PENTANEDIOL C6 H14 O2 SVTBMSDMJJWYQN-YFKPBYRVSA-N
PO4	E [auth A], F [auth A]	PHOSPHATE ION O4 P NBIIXXVUZAFLBC-UHFFFAOYSA-K

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.71 Å
• R-Value Free: 0.204 
• R-Value Work: 0.187 
• R-Value Observed: 0.188 
• Space Group: P 2₁ 2₁ 2

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 136.287	α = 90
b = 88.342	β = 90
c = 45.322	γ = 90

Software Package:

Software Name	Purpose
REFMAC	refinement
SCALEPACK	data scaling
CNS	refinement
DENZO	data reduction
CNS	phasing

Structure Validation

Entry History 

Deposition Data

• Released Date: 2003-06-10 
Deposition Author(s): Rudolph, M.G., Wilson, I.A.

Revision History  

• Version 1.0: 2003-06-10
  Type: Initial release
  
• Version 1.1: 2008-04-27
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Non-polymer description, Version format compliance
• Version 1.3: 2019-07-24
  Changes: Data collection, Derived calculations, Refinement description
• Version 2.0: 2020-07-29
  Type: Remediation
  Reason: Carbohydrate remediation
  Changes: Advisory, Atomic model, Data collection, Derived calculations, Structure summary
• Version 2.1: 2023-08-16
  Changes: Data collection, Database references, Derived calculations, Refinement description, Structure summary
• Version 2.2: 2024-10-16
  Changes: Structure summary