SMTL ID : 2g9h.1

Crystal Structure of Staphylococcal Enterotoxin I (SEI) in Complex with a Human MHC class II Molecule

Coordinates

PDB Format

Method

X-RAY DIFFRACTION 2.00 Å

Oligo State

hetero-1-1-1-1-mer

Ligands

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

SO4.1: 5 residues within 4Å: Chain A: V.116, N.118, E.166, H.167, W.168 2 PLIP interactions: 2 interactions with chain A Hydrogen bonds: A:W.168, A:W.168 SO4.2: 3 residues within 4Å: Chain A: R.123, N.124, K.126 5 PLIP interactions: 5 interactions with chain A Hydrogen bonds: A:N.124 Water bridges: A:R.123, A:R.123 Salt bridges: A:R.123, A:K.126 SO4.6: 3 residues within 4Å: Chain A: S.53 Chain C: P.1, K.2 3 PLIP interactions: 2 interactions with chain C, 1 interactions with chain A Hydrogen bonds: C:P.1, A:S.53 Salt bridges: C:K.2 SO4.8: 2 residues within 4Å: Chain D: K.174, S.175 3 PLIP interactions: 1 interactions with chain B, 2 interactions with chain D Water bridges: B:E.87 Hydrogen bonds: D:S.175, D:S.175

1 x EPE: 4-(2-HYDROXYETHYL)-1-PIPERAZINE ETHANESULFONIC ACID(Non-functional Binders)

EPE.3: 6 residues within 4Å: Chain A: P.96, V.97, E.98, F.180 Chain B: Y.102, K.105 4 PLIP interactions: 3 interactions with chain A, 1 interactions with chain B Hydrogen bonds: A:V.97 Salt bridges: A:E.98, A:E.98, B:K.105

2 x DIO: 1,4-DIETHYLENE DIOXIDE(Non-covalent)

DIO.4: 6 residues within 4Å: Chain A: N.84, W.168 Chain B: D.2, T.3, R.4, R.6 3 PLIP interactions: 2 interactions with chain B, 1 interactions with chain A Water bridges: B:R.6, B:R.6 Hydrogen bonds: A:N.84 DIO.5: 2 residues within 4Å: Chain A: K.111, R.140 3 PLIP interactions: 3 interactions with chain A Hydrogen bonds: A:R.140, A:R.140 Water bridges: A:K.111

1 x ZN: ZINC ION(Non-covalent)

ZN.7: 4 residues within 4Å: Chain B: H.81 Chain D: H.169, H.207, D.209 5 PLIP interactions: 4 interactions with chain D, 1 interactions with chain B Metal complexes: D:H.169, D:H.207, D:D.209, D:D.209, B:H.81

Links

RCSB   PDBe   PDBe-KB   PDBj   PDBsum   CATH   PLIP

Citation

Fernandez, M.M. et al., Crystal structure of staphylococcal enterotoxin I (SEI) in complex with a human major histocompatibility complex class II molecule. J.Biol.Chem. (2006)

Release Date

2006-07-11

Peptides

HLA class II histocompatibility antigen, DR alpha chain: A
HLA class II histocompatibility antigen, DRB1-1 beta chain: B
Hemagglutinin: C
extracellular enterotoxin type I: D

SMTL:PDB

SMTL Chain Id:
PDB Chain Id:

A
A

B
B

C
C

D
D

HLA class II histocompatibility antigen, DR alpha chain

HLA class II histocompatibility antigen, DRB1-1 beta chain

Hemagglutinin

extracellular enterotoxin type I

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