Biological Assembly 1  

 3D View: Structure | 1D-3D View | Electron Density | Validation Report | Ligand Interaction

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

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

Biological Assembly 2  

 3D View: Structure | 1D-3D View | Electron Density | Validation Report | Ligand Interaction

Global Symmetry: Cyclic - C2  (3D View)
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: 45.65 kDa 
• Atom Count: 3677 
• Modelled Residue Count: 382 
• Deposited Residue Count: 382 
• Unique protein chains: 3

1FZK

MHC CLASS I NATURAL MUTANT H-2KBM1 HEAVY CHAIN COMPLEXED WITH BETA-2 MICROGLOBULIN AND SENDAI VIRUS NUCLEOPROTEIN

• PDB DOI: 10.2210/pdb1FZK/pdb

• Classification: IMMUNE SYSTEM
• Organism(s): Mus musculus
• Expression System: Drosophila melanogaster
• Mutation(s): Yes 


• Deposited: 2000-10-03 Released: 2001-03-28 
• Deposition Author(s): Rudolph, M.G., Speir, J.A., Brunmark, A., Mattsson, N., Jackson, M.R., Peterson, P.A., Teyton, L., Wilson, I.A.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.70 Å
• R-Value Free: 0.213 
• R-Value Work: 0.204 
• R-Value Observed: 0.204 

Literature

The crystal structures of K(bm1) and K(bm8) reveal that subtle changes in the peptide environment impact thermostability and alloreactivity.

Rudolph, M.G., Speir, J.A., Brunmark, A., Mattsson, N., Jackson, M.R., Peterson, P.A., Teyton, L., Wilson, I.A.

(2001) Immunity 14: 231-242

• PubMed: 11290333 
• DOI: 10.1016/s1074-7613(01)00105-4
• Primary Citation of Related Structures:  
  1FZJ, 1FZK, 1FZM, 1FZO


• PubMed Abstract: 
  

The K(bm1) and K(bm8) natural mutants of the murine MHC class I molecule H-2K(b) were originally identified by allograft rejection. They also bind viral peptides VSV8 and SEV9 with high affinity, but their peptide complexes have substantially decreased thermostability, and the K(bm1) complexes do not elicit alloreactive T cell responses. Crystal structures of the four mutant complexes at 1.7-1.9 A resolution are similar to the corresponding wild-type K(b) structures, except in the vicinity of the mutated residues, which alter the electrostatic potential, topology, hydrogen bonding, and local water structure of the peptide binding groove. Thus, these natural K(b) mutations define the minimal perturbations in the peptide environment that alter antigen presentation to T cells and abolish alloreactivity.

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Organizational Affiliation: 

Department of Molecular Biology, The Scripps Research Institute, La Jolla, CA 92037, USA.

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): 4  Gene Names: H2-K1, H2-K
UniProt
Find proteins for P01901 (Mus musculus) Explore P01901  Go to UniProtKB:  P01901

Entity ID: 2
Molecule	Chains	Sequence Length	Organism	Details	Image
PROTEIN (BETA-2-MICROGLOBULIN)	B	99	Mus musculus	Mutation(s): 0  Gene Names: B2m
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
PROTEIN (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	Chain Length	2D Diagram	Glycosylation
2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-[beta-L-fucopyranose-(1-6)]2-acetamido-2-deoxy-beta-D-glucopyranose	D [auth C]	3		N-Glycosylation
Glycosylation Resources
GlyTouCan:  G28454KX GlyCosmos:  G28454KX GlyGen:  G28454KX

Small Molecules

Ligands 4 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
NAG	E [auth A]	2-acetamido-2-deoxy-beta-D-glucopyranose C8 H15 N O6 OVRNDRQMDRJTHS-FMDGEEDCSA-N
MPD	I [auth A], J [auth A]	(4S)-2-METHYL-2,4-PENTANEDIOL C6 H14 O2 SVTBMSDMJJWYQN-YFKPBYRVSA-N
MRD	H [auth A]	(4R)-2-METHYLPENTANE-2,4-DIOL C6 H14 O2 SVTBMSDMJJWYQN-RXMQYKEDSA-N
PO4	F [auth A], G [auth A]	PHOSPHATE ION O4 P NBIIXXVUZAFLBC-UHFFFAOYSA-K

Modified Residues  1 Unique
ID	Chains	Type	Formula	2D Diagram	Parent
CSO	A	L-PEPTIDE LINKING	C3 H7 N O3 S		CYS

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.70 Å
• R-Value Free: 0.213 
• R-Value Work: 0.204 
• R-Value Observed: 0.204 
• Space Group: P 2₁ 2₁ 2

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 136.75	α = 90
b = 87.92	β = 90
c = 45.99	γ = 90

Software Package:

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

Structure Validation

Entry History 

Deposition Data

• Deposited Date: 2000-10-03 
• Released Date: 2001-03-28 
Deposition Author(s): Rudolph, M.G., Speir, J.A., Brunmark, A., Mattsson, N., Jackson, M.R., Peterson, P.A., Teyton, L., Wilson, I.A.

Revision History  

• Version 1.0: 2001-03-28
  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 2.0: 2020-07-29
  Type: Remediation
  Reason: Carbohydrate remediation
  Changes: Atomic model, Data collection, Database references, Derived calculations, Structure summary
• Version 2.1: 2021-11-03
  Changes: Database references, Structure summary