SMTL ID : 7su0.2 (1 other biounit)

Crystal structure of an acidic pH-selective Ipilimumab variant Ipi.105 in complex with CTLA-4

Coordinates

PDB Format Compare

Method

X-RAY DIFFRACTION 2.41 Å

Oligo State

hetero-1-1-1-mer

Ligands

1 x NAG: 2-acetamido-2-deoxy-beta-D-glucopyranose(Post Translational Modification)

NAG.1: 3 residues within 4Å: Chain A: S.20, V.22, N.78 2 PLIP interactions: 2 interactions with chain A Hydrophobic interactions: A:V.22 Hydrogen bonds: A:T.80

1 x FLC: CITRATE ANION(Non-covalent)

FLC.2: 11 residues within 4Å: Chain A: Q.45, V.46 Chain B: G.100, W.101, L.102, G.103, P.104, D.106 Chain C: Y.50, A.56, T.57 7 PLIP interactions: 2 interactions with chain C, 2 interactions with chain A, 3 interactions with chain B Hydrophobic interactions: C:Y.50, B:L.102 Hydrogen bonds: C:T.57, A:Q.45, A:V.46, B:L.102, B:G.103

1 x PEG: DI(HYDROXYETHYL)ETHER(Non-functional Binders)

PEG.3: 6 residues within 4Å: Chain B: G.42 Chain C: G.9, V.86, Y.88, Q.101, G.102 2 PLIP interactions: 2 interactions with chain C Hydrogen bonds: C:G.9, C:Y.88

Links

RCSB   PDBe   PDBe-KB   PDBj   PDBsum   CATH   PLIP

Citation

Lee, P.S. et al., Improved therapeutic index of an acidic pH-selective antibody. Mabs (2022)

Release Date

2022-03-02

Peptides

Cytotoxic T-lymphocyte protein 4: A
Fab heavy chain: B
Fab light chain: C

SMTL:PDB

SMTL Chain Id:
PDB Chain Id:

A
D

B
I

C
M

Cytotoxic T-lymphocyte protein 4

Fab heavy chain

Fab light chain

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