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CD4 — CD80

Pathways - manually collected, often from reviews:

• NCI Pathway Database TCR signaling in naïve CD4+ T cells: TCR/CD3/MHC II/CD4/LCK complex (CD3E-CD3G-CD3D-HLA-DRA-HLA-DRB1-CD4-LCK-CD247) → B7 family/CD28 complex (CD28-CD80_CD86) (modification, collaborate)
  Pelosi et al., J Biol Chem 1999, Iwashima et al., Science 1994, Chan et al., J Immunol 1994, van Oers et al., J Exp Med 1996, Tuosto et al., Eur J Immunol 1998
  Evidence: mutant phenotype, assay
• NCI Pathway Database TCR signaling in naïve CD4+ T cells: B7 family/CD28 complex (CD28-CD80_CD86) → TCR/CD3/MHC II/CD4/LCK/ZAP-70 complex (CD247-CD3E-CD3G-CD3D-HLA-DRA-HLA-DRB1-CD4-LCK-ZAP70) (modification, activates)
  Pelosi et al., J Biol Chem 1999, Iwashima et al., Science 1994, Chan et al., J Immunol 1994, van Oers et al., J Exp Med 1996, Tuosto et al., Eur J Immunol 1998
  Evidence: mutant phenotype, assay
• NCI Pathway Database TCR signaling in naïve CD4+ T cells: TCR/CD3/MHC II/CD4/LCK complex (CD3E-CD3G-CD3D-HLA-DRA-HLA-DRB1-CD4-LCK-CD247) → B7 family/CD28 complex (CD28-CD80_CD86) (modification, activates)
  Woods et al., EMBO J 2001, Wilcox et al., J Biol Chem 2003, August et al., Proc Natl Acad Sci U S A 1994, Raab et al., Proc Natl Acad Sci U S A 1995, Gibson et al., J Biol Chem 1996, Heyeck et al., J Biol Chem 1997
  Evidence: mutant phenotype, assay, physical interaction
• NCI Pathway Database TCR signaling in naïve CD4+ T cells: B7 family/CD28 complex (CD28-CD80_CD86) → TCR/CD3/MHC II/CD4 complex (CD247-CD3E-CD3G-CD3D-HLA-DRA-HLA-DRB1-CD4) (modification, activates)
  Housden et al., Eur J Biochem 2003, Barber et al., Proc Natl Acad Sci U S A 1989, van Oers et al., J Exp Med 1996, Kersh et al., Science 1998, Tuosto et al., Eur J Immunol 1998, Viola et al., Science 1999
  Evidence: mutant phenotype, assay
• NCI Pathway Database TCR signaling in naïve CD4+ T cells: TCR/CD3/MHC II/CD4/LCK complex (CD3E-CD3G-CD3D-HLA-DRA-HLA-DRB1-CD4-LCK-CD247) → B7 family/CD28 complex (CD28-CD80_CD86) (modification, activates)
  Raab et al., Proc Natl Acad Sci U S A 1995
  Evidence: mutant phenotype, assay

Text-mined interactions from Literome

Edgtton et al., J Am Soc Nephrol 2008 : Blocking both CD86 and CD80 profoundly inhibited CD4 ( + ) cell proliferation, but CD86 was the dominant CD28 ligand in the early proliferative response of CD4 ( + ) cells
Fuse et al., Cell Immunol 2011 (Vaccinia) : Differential requirements for CD80/86-CD28 costimulation in primary and memory CD4 T cell responses to vaccinia virus