SMTL ID : 7y03.1

Crystal structure of Ricin A chain bound with (S)-2-(2-amino-4-oxo-3,4-dihydropteridine-7-carboxamido)-2-phenylacetic acid

Coordinates

PDB Format

Method

X-RAY DIFFRACTION 1.35 Å

Oligo State

monomer

Ligands

2 x IF4: (2S)-2-[(2-azanyl-4-oxidanylidene-3H-pteridin-7-yl)carbonylamino]-2-phenyl-ethanoic acid(Non-covalent)

IF4.1: 14 residues within 4Å: Chain A: A.86, Y.87, V.88, F.100, G.128, N.129, Y.130, R.141, I.179, S.183, E.184, R.187, N.216 Ligands: IF4.2 15 PLIP interactions: 15 interactions with chain A Hydrogen bonds: A:V.88, A:V.88, A:V.88, A:Y.130, A:S.183, A:R.187, A:R.187 Water bridges: A:D.131, A:D.131, A:R.141, A:R.141 Salt bridges: A:R.141 pi-Stacking: A:Y.87, A:Y.130 pi-Cation interactions: A:Y.87 IF4.2: 14 residues within 4Å: Chain A: D.82, N.85, Y.87, V.89, H.101, P.102, D.103, D.107, N.129, R.187, W.218, V.263, R.265 Ligands: IF4.1 19 PLIP interactions: 19 interactions with chain A Hydrophobic interactions: A:W.218, A:W.218 Hydrogen bonds: A:N.85, A:D.103 Water bridges: A:R.63, A:D.82, A:T.84, A:D.103, A:D.107, A:D.107, A:D.107, A:R.265, A:R.265 Salt bridges: A:D.82, A:D.103, A:D.107, A:R.265 pi-Stacking: A:Y.87, A:Y.87

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

SO4.3: 2 residues within 4Å: Chain A: T.24, Q.26 2 PLIP interactions: 2 interactions with chain A Water bridges: A:T.24, A:Q.26 SO4.4: 3 residues within 4Å: Chain A: F.126, G.127, R.132 3 PLIP interactions: 3 interactions with chain A Hydrogen bonds: A:G.127 Water bridges: A:R.132 Salt bridges: A:R.132

Links

RCSB   PDBe   PDBe-KB   PDBj   PDBsum   CATH   PLIP

Citation

Goto, M. et al., Conformational change in ricin toxin A-Chain: A critical factor for inhibitor binding to the secondary pocket. Biochem.Biophys.Res.Commun. (2022)

Release Date

2022-12-21

Peptides

Ricin A chain: A

SMTL:PDB

SMTL Chain Id:
PDB Chain Id:

A
A

Ricin A chain

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