SMTL ID : 2rtq.2 (1 other biounit)

STREPTAVIDIN-2-IMINOBIOTIN COMPLEX, PH 3.25, SPACE GROUP I222, CRYSTALLIZED FROM 4.3 M AMMONIUM SULFATE

Coordinates

PDB Format Compare

Method

X-RAY DIFFRACTION 1.39 Å

Oligo State

homo-octamer

Ligands

8 x IMI: 2-IMINOBIOTIN(Non-covalent)

IMI.1: 20 residues within 4Å: Chain A: N.23, L.25, S.27, Y.43, S.45, A.46, V.47, G.48, N.49, A.50, W.79, A.86, S.88, T.90, W.92, W.108, L.110, D.128, F.130 Chain H: W.120 15 PLIP interactions: 15 interactions with chain A Hydrophobic interactions: A:V.47, A:A.50, A:W.79, A:W.79, A:W.79 Hydrogen bonds: A:N.23, A:S.27, A:S.27, A:Y.43, A:Y.43, A:S.45, A:N.49, A:S.88, A:S.88 Salt bridges: A:D.128 IMI.2: 20 residues within 4Å: Chain B: N.23, L.25, S.27, Y.43, S.45, A.46, V.47, G.48, N.49, A.50, W.79, A.86, S.88, T.90, W.92, W.108, L.110, D.128, F.130 Chain G: W.120 13 PLIP interactions: 13 interactions with chain B Hydrophobic interactions: B:A.50, B:W.79, B:W.79, B:W.79, B:L.110 Hydrogen bonds: B:N.23, B:S.27, B:S.27, B:Y.43, B:S.45, B:N.49, B:S.88 Salt bridges: B:D.128 IMI.3: 20 residues within 4Å: Chain C: N.23, L.25, S.27, Y.43, S.45, A.46, V.47, G.48, N.49, A.50, W.79, A.86, S.88, T.90, W.92, W.108, L.110, D.128, F.130 Chain F: W.120 15 PLIP interactions: 15 interactions with chain C Hydrophobic interactions: C:V.47, C:A.50, C:W.79, C:W.79, C:W.79 Hydrogen bonds: C:N.23, C:S.27, C:S.27, C:Y.43, C:Y.43, C:S.45, C:N.49, C:S.88, C:S.88 Salt bridges: C:D.128 IMI.4: 20 residues within 4Å: Chain D: N.23, L.25, S.27, Y.43, S.45, A.46, V.47, G.48, N.49, A.50, W.79, A.86, S.88, T.90, W.92, W.108, L.110, D.128, F.130 Chain E: W.120 13 PLIP interactions: 13 interactions with chain D Hydrophobic interactions: D:A.50, D:W.79, D:W.79, D:W.79, D:L.110 Hydrogen bonds: D:N.23, D:S.27, D:S.27, D:Y.43, D:S.45, D:N.49, D:S.88 Salt bridges: D:D.128 IMI.5: 20 residues within 4Å: Chain D: W.120 Chain E: N.23, L.25, S.27, Y.43, S.45, A.46, V.47, G.48, N.49, A.50, W.79, A.86, S.88, T.90, W.92, W.108, L.110, D.128, F.130 15 PLIP interactions: 15 interactions with chain E Hydrophobic interactions: E:V.47, E:A.50, E:W.79, E:W.79, E:W.79 Hydrogen bonds: E:N.23, E:S.27, E:S.27, E:Y.43, E:Y.43, E:S.45, E:N.49, E:S.88, E:S.88 Salt bridges: E:D.128 IMI.6: 20 residues within 4Å: Chain C: W.120 Chain F: N.23, L.25, S.27, Y.43, S.45, A.46, V.47, G.48, N.49, A.50, W.79, A.86, S.88, T.90, W.92, W.108, L.110, D.128, F.130 13 PLIP interactions: 13 interactions with chain F Hydrophobic interactions: F:A.50, F:W.79, F:W.79, F:W.79, F:L.110 Hydrogen bonds: F:N.23, F:S.27, F:S.27, F:Y.43, F:S.45, F:N.49, F:S.88 Salt bridges: F:D.128 IMI.7: 20 residues within 4Å: Chain B: W.120 Chain G: N.23, L.25, S.27, Y.43, S.45, A.46, V.47, G.48, N.49, A.50, W.79, A.86, S.88, T.90, W.92, W.108, L.110, D.128, F.130 15 PLIP interactions: 15 interactions with chain G Hydrophobic interactions: G:V.47, G:A.50, G:W.79, G:W.79, G:W.79 Hydrogen bonds: G:N.23, G:S.27, G:S.27, G:Y.43, G:Y.43, G:S.45, G:N.49, G:S.88, G:S.88 Salt bridges: G:D.128 IMI.8: 20 residues within 4Å: Chain A: W.120 Chain H: N.23, L.25, S.27, Y.43, S.45, A.46, V.47, G.48, N.49, A.50, W.79, A.86, S.88, T.90, W.92, W.108, L.110, D.128, F.130 13 PLIP interactions: 13 interactions with chain H Hydrophobic interactions: H:A.50, H:W.79, H:W.79, H:W.79, H:L.110 Hydrogen bonds: H:N.23, H:S.27, H:S.27, H:Y.43, H:S.45, H:N.49, H:S.88 Salt bridges: H:D.128

Links

RCSB   PDBe   PDBe-KB   PDBj   PDBsum   CATH   PLIP

Citation

Katz, B.A., Binding of biotin to streptavidin stabilizes intersubunit salt bridges between Asp61 and His87 at low pH. J.Mol.Biol. (1997)

Release Date

1998-10-14

Peptides

STREPTAVIDIN: ABCDEFGH

SMTL:PDB

SMTL Chain Id:
PDB Chain Id:

A
B

B
D

C
B

D
D

E
B

F
D

G
B

H
D

STREPTAVIDIN

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