SMTL ID : 7qhp.1

Structure of I-Ag7 with a bound hybrid insulin peptide

Coordinates

PDB Format Compare

Method

X-RAY DIFFRACTION 1.82 Å

Oligo State

hetero-1-1-1-mer

Ligands

2 x GOL: GLYCEROL(Non-functional Binders)

GOL.1: 5 residues within 4Å: Chain A: F.112, L.152 Chain B: L.172, I.173, R.174 3 PLIP interactions: 2 interactions with chain B, 1 interactions with chain A Hydrogen bonds: B:L.172, B:R.174 Water bridges: A:H.150 GOL.3: 6 residues within 4Å: Chain B: I.152, K.153, V.154, S.169, V.182, V.184 5 PLIP interactions: 5 interactions with chain B Hydrogen bonds: B:V.154, B:V.154, B:S.169, B:S.169 Water bridges: B:S.169

1 x SO4: SULFATE ION(Non-functional Binders)

SO4.2: 1 residues within 4Å: Chain B: R.94 1 PLIP interactions: 1 interactions with chain B Salt bridges: B:R.94

2 x NA: SODIUM ION(Non-functional Binders)

NA.4: 4 residues within 4Å: Chain B: Q.90, Y.91, E.93, R.94 3 PLIP interactions: 3 interactions with chain B Hydrogen bonds: B:Y.91, B:E.93, B:R.94 NA.5: 4 residues within 4Å: Chain B: K.153, R.155, H.199, E.201 3 PLIP interactions: 3 interactions with chain B Hydrogen bonds: B:K.153, B:R.155, B:E.201

Links

RCSB   PDBe   PDBe-KB   PDBj   PDBsum   CATH   PLIP

Citation

Erausquin, E. et al., Structural plasticity in I-A g7 links autoreactivity to hybrid insulin peptides in type I diabetes. Front Immunol (2022)

Release Date

2022-07-20

Peptides

H-2 class II histocompatibility antigen, A-D alpha chain: A
Murine MHC class II I-A beta g7: B
Insulin-1: C

SMTL:PDB

SMTL Chain Id:
PDB Chain Id:

A
A

B
B

C
T

H-2 class II histocompatibility antigen, A-D alpha chain

Murine MHC class II I-A beta g7

Insulin-1

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