SMTL ID : 2izg.1

STREPTAVIDIN-BIOTIN PH 2.0 I222 COMPLEX

Coordinates

PDB Format

Method

X-RAY DIFFRACTION 1.36 Å

Oligo State

homo-tetramer

Ligands

4 x BTN: BIOTIN(Non-covalent)

BTN.1: 19 residues within 4Å: Chain A: N.11, L.13, S.15, Y.31, S.33, A.34, V.35, G.36, N.37, A.38, W.67, A.74, S.76, T.78, W.80, W.96, L.98, D.116 Chain D: W.108 10 PLIP interactions: 10 interactions with chain A Hydrophobic interactions: A:W.67, A:W.67, A:W.67 Hydrogen bonds: A:N.11, A:S.15, A:Y.31, A:S.33, A:N.37, A:S.76, A:D.116 BTN.3: 19 residues within 4Å: Chain B: N.11, L.13, S.15, Y.31, S.33, A.34, V.35, G.36, N.37, A.38, W.67, A.74, S.76, T.78, W.80, W.96, L.98, D.116 Chain C: W.108 11 PLIP interactions: 11 interactions with chain B Hydrophobic interactions: B:A.38, B:W.67, B:W.67, B:W.67, B:L.98 Hydrogen bonds: B:N.11, B:S.15, B:Y.31, B:S.33, B:N.37, B:D.116 BTN.4: 19 residues within 4Å: Chain B: W.108 Chain C: N.11, L.13, S.15, Y.31, S.33, A.34, V.35, G.36, N.37, A.38, W.67, A.74, S.76, T.78, W.80, W.96, L.98, D.116 10 PLIP interactions: 10 interactions with chain C Hydrophobic interactions: C:W.67, C:W.67, C:W.67 Hydrogen bonds: C:N.11, C:S.15, C:Y.31, C:S.33, C:N.37, C:S.76, C:D.116 BTN.6: 19 residues within 4Å: Chain A: W.108 Chain D: N.11, L.13, S.15, Y.31, S.33, A.34, V.35, G.36, N.37, A.38, W.67, A.74, S.76, T.78, W.80, W.96, L.98, D.116 11 PLIP interactions: 11 interactions with chain D Hydrophobic interactions: D:A.38, D:W.67, D:W.67, D:W.67, D:L.98 Hydrogen bonds: D:N.11, D:S.15, D:Y.31, D:S.33, D:N.37, D:D.116

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

SO4.2: 5 residues within 4Å: Chain B: V.35, G.36 Chain C: N.106, W.108, K.109 3 PLIP interactions: 1 interactions with chain B, 2 interactions with chain C Hydrogen bonds: B:G.36, C:W.108 Salt bridges: C:K.109 SO4.5: 5 residues within 4Å: Chain A: N.106, W.108, K.109 Chain D: V.35, G.36 3 PLIP interactions: 1 interactions with chain D, 2 interactions with chain A Hydrogen bonds: D:G.36, A:W.108 Salt bridges: A:K.109

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

1998-09-16

Peptides

STREPTAVIDIN: ABCD

SMTL:PDB

SMTL Chain Id:
PDB Chain Id:

A
B

B
D

C
B

D
D

STREPTAVIDIN

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