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Crystal structure of bovine CD1b3 with endogenously bound ligands

Source organism: Bos taurus
Biochemical function: peptide antigen binding
Biological process: positive regulation of T cell activation
Cellular component: MHC class II protein complex

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GO terms

Sequence families

Pfam Protein families (Pfam)
PF07654
Domain description: Immunoglobulin C1-set domain
Occurring in:
  1. CD1b3
  2. Beta-2-microglobulin
The deposited structure of PDB entry 3l9r contains 4 copies of Pfam domain PF07654 (Immunoglobulin C1-set domain) in Ig-like domain-containing protein. Showing 1 copy in chain A.
The deposited structure of PDB entry 3l9r contains 4 copies of Pfam domain PF07654 (Immunoglobulin C1-set domain) in Beta-2-microglobulin. Showing 1 copy in chain D.

PF16497
Domain description: MHC-I family domain
Occurring in:
  1. CD1b3
The deposited structure of PDB entry 3l9r contains 4 copies of Pfam domain PF16497 (MHC-I family domain) in Ig-like domain-containing protein. Showing 1 copy in chain A.

InterPro InterPro annotations
IPR003597
Domain description: Immunoglobulin C1-set
Occurring in:
  1. CD1b3
  2. Beta-2-microglobulin
IPR015707
Domain description: Beta-2-Microglobulin
Occurring in:
  1. Beta-2-microglobulin
IPR036179
Domain description: Immunoglobulin-like domain superfamily
Occurring in:
  1. CD1b3
  2. Beta-2-microglobulin
IPR013783
Domain description: Immunoglobulin-like fold
Occurring in:
  1. CD1b3
  2. Beta-2-microglobulin
IPR007110
Domain description: Immunoglobulin-like domain
Occurring in:
  1. CD1b3
  2. Beta-2-microglobulin
IPR003006
Domain description: Immunoglobulin/major histocompatibility complex, conserved site
Occurring in:
  1. Beta-2-microglobulin
IPR011162
Domain description: MHC classes I/II-like antigen recognition protein
Occurring in:
  1. CD1b3
IPR011161
Domain description: MHC class I-like antigen recognition-like
Occurring in:
  1. CD1b3
IPR037055
Domain description: MHC class I-like antigen recognition-like superfamily
Occurring in:
  1. CD1b3

Structure domains

CATH CATH domains
2.60.40.10
Class: Mainly Beta
Architecture: Sandwich
Topology: Immunoglobulin-like
Homology: Immunoglobulins
Occurring in:
  1. CD1b3
  2. Beta-2-microglobulin
The deposited structure of PDB entry 3l9r contains 4 copies of CATH domain 2.60.40.10 (Immunoglobulin-like) in Ig-like domain-containing protein. Showing 1 copy in chain A.
The deposited structure of PDB entry 3l9r contains 4 copies of CATH domain 2.60.40.10 (Immunoglobulin-like) in Beta-2-microglobulin. Showing 1 copy in chain D.
3.30.500.10
Class: Alpha Beta
Architecture: 2-Layer Sandwich
Topology: Murine Class I Major Histocompatibility Complex, H2-DB; Chain A, domain 1
Homology: MHC class I-like antigen recognition-like
Occurring in:
  1. CD1b3
The deposited structure of PDB entry 3l9r contains 4 copies of CATH domain 3.30.500.10 (Murine Class I Major Histocompatibility Complex, H2-DB; Chain A, domain 1) in Ig-like domain-containing protein. Showing 1 copy in chain A.

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