Function and Biology

CRYSTAL STRUCTURE OF A COMPLEX OF A HUMAN ALPHA/BETA-T CELL RECEPTOR, INFLUENZA HA ANTIGEN PEPTIDE, AND MHC CLASS II MOLECULE, HLA-DR1

Source organisms:
Biochemical function: not assigned
Biological process: antigen processing and presentation
Cellular component: MHC class II protein complex

GO terms

Biochemical function:
  • not assigned
Biological process:
Cellular component:

Sequence families

CATH Protein families (Pfam)
PF09291
Domain description: Domain of unknown function (DUF1968)
Occurring in:
  1. T-cell receptor alpha chain C region
1 copy of Pfam domain PF09291 (Domain of unknown function (DUF1968)) in T-cell receptor alpha chain C region in PDB 1fyt.

PF00969
Domain description: Class II histocompatibility antigen, beta domain
Occurring in:
  1. HLA class II histocompatibility antigen, DRB1-1 beta chain
1 copy of Pfam domain PF00969 (Class II histocompatibility antigen, beta domain) in HLA class II histocompatibility antigen, DRB1-1 beta chain in PDB 1fyt.

PF00993
Domain description: Class II histocompatibility antigen, alpha domain
Occurring in:
  1. HLA class II histocompatibility antigen, DR alpha chain
1 copy of Pfam domain PF00993 (Class II histocompatibility antigen, alpha domain) in HLA class II histocompatibility antigen, DR alpha chain in PDB 1fyt.

CATH InterPro annotations
IPR000353
Domain description: MHC class II, beta chain, N-terminal
Occurring in:
  1. HLA class II histocompatibility antigen, DRB1-1 beta chain
IPR014745
Domain description: MHC class II, alpha/beta chain, N-terminal
Occurring in:
  1. HLA class II histocompatibility antigen, DR alpha chain
  2. HLA class II histocompatibility antigen, DRB1-1 beta chain
IPR011162
Domain description: MHC classes I/II-like antigen recognition protein
Occurring in:
  1. HLA class II histocompatibility antigen, DR alpha chain
  2. HLA class II histocompatibility antigen, DRB1-1 beta chain
IPR003006
Domain description: Immunoglobulin/major histocompatibility complex, conserved site
Occurring in:
  1. HLA class II histocompatibility antigen, DR alpha chain
  2. HLA class II histocompatibility antigen, DRB1-1 beta chain
IPR001003
Domain description: MHC class II, alpha chain, N-terminal
Occurring in:
  1. HLA class II histocompatibility antigen, DR alpha chain
IPR013106
Domain description: Immunoglobulin V-set domain
Occurring in:
  1. T-cell receptor alpha chain C region
  2. T-cell receptor beta-1 chain C region
IPR015370
Domain description: T-cell receptor alpha chain, constant domain
Occurring in:
  1. T-cell receptor alpha chain C region
IPR003599
Domain description: Immunoglobulin subtype
Occurring in:
  1. T-cell receptor alpha chain C region
  2. T-cell receptor beta-1 chain C region

Structure domains

CATH CATH domains
2.60.40.10
2 copies of CATH domain 2.60.40.10 (Immunoglobulin-like) in HLA class II histocompatibility antigen, DRB1-1 beta chain in PDB 1fyt.
1 copy of CATH domain 2.60.40.10 (Immunoglobulin-like) in HLA class II histocompatibility antigen, DR alpha chain in PDB 1fyt.
6 copies of CATH domain 2.60.40.10 (Immunoglobulin-like) in T-cell receptor beta-1 chain C region in PDB 1fyt.
4 copies of CATH domain 2.60.40.10 (Immunoglobulin-like) in T-cell receptor alpha chain C region in PDB 1fyt.
3.10.320.10
Class: Alpha Beta
Architecture: Roll
Topology: Class II Histocompatibility Antigen, M Beta Chain; Chain B, domain 1
Homology: Class II Histocompatibility Antigen, M Beta Chain; Chain B, domain 1
Occurring in:
  1. HLA class II histocompatibility antigen, DR alpha chain
  2. HLA class II histocompatibility antigen, DRB1-1 beta chain
2 copies of CATH domain 3.10.320.10 (Class II Histocompatibility Antigen, M Beta Chain; Chain B, domain 1) in HLA class II histocompatibility antigen, DRB1-1 beta chain in PDB 1fyt.
1 copy of CATH domain 3.10.320.10 (Class II Histocompatibility Antigen, M Beta Chain; Chain B, domain 1) in HLA class II histocompatibility antigen, DR alpha chain in PDB 1fyt.
SCOP SCOP annotations
2 copies of SCOP domain 48942 (C1 set domains (antibody constant domain-like)) in HLA class II histocompatibility antigen, DRB1-1 beta chain in PDB 1fyt.
1 copy of SCOP domain 48942 (C1 set domains (antibody constant domain-like)) in HLA class II histocompatibility antigen, DR alpha chain in PDB 1fyt.
4 copies of SCOP domain 48942 (C1 set domains (antibody constant domain-like)) in T-cell receptor beta-1 chain C region in PDB 1fyt.
3 copies of SCOP domain 48942 (C1 set domains (antibody constant domain-like)) in T-cell receptor alpha chain C region in PDB 1fyt.
54453
Class: Alpha and beta proteins (a+b)
Fold: MHC antigen-recognition domain
Superfamily: MHC antigen-recognition domain
Occurring in:
  1. HLA class II histocompatibility antigen, DR alpha chain
  2. HLA class II histocompatibility antigen, DRB1-1 beta chain
2 copies of SCOP domain 54453 (MHC antigen-recognition domain) in HLA class II histocompatibility antigen, DRB1-1 beta chain in PDB 1fyt.
1 copy of SCOP domain 54453 (MHC antigen-recognition domain) in HLA class II histocompatibility antigen, DR alpha chain in PDB 1fyt.
48727
Class: All beta proteins
Fold: Immunoglobulin-like beta-sandwich
Superfamily: Immunoglobulin
Occurring in:
  1. T-cell receptor alpha chain C region
  2. T-cell receptor beta-1 chain C region
2 copies of SCOP domain 48727 (V set domains (antibody variable domain-like)) in T-cell receptor beta-1 chain C region in PDB 1fyt.
1 copy of SCOP domain 48727 (V set domains (antibody variable domain-like)) in T-cell receptor alpha chain C region in PDB 1fyt.