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

APOSTREPTAVIDIN PH 3.08 I222 COMPLEX

Coordinates

PDB Format

Method

X-RAY DIFFRACTION 1.57 Å

Oligo State

homo-tetramer

Ligands

2 x NA: SODIUM ION(Non-functional Binders)

NA.1: 9 residues within 4Å: Chain A: N.11, L.13, S.15, Y.31, S.33, V.35, W.80, D.116 Ligands: CL.2 4 PLIP interactions: 4 interactions with chain A Hydrogen bonds: A:N.11, A:S.15, A:Y.31, A:D.116 NA.7: 9 residues within 4Å: Chain C: N.11, L.13, S.15, Y.31, S.33, V.35, W.80, D.116 Ligands: CL.8 4 PLIP interactions: 4 interactions with chain C Hydrogen bonds: C:N.11, C:S.15, C:Y.31, C:S.33

4 x CL: CHLORIDE ION(Non-functional Binders)

CL.2: 9 residues within 4Å: Chain A: N.11, L.13, S.15, Y.31, S.33, V.35, W.80, D.116 Ligands: NA.1 Ligand excluded by PLIP CL.5: 7 residues within 4Å: Chain B: N.11, L.13, S.15, Y.31, W.80, D.116 Ligands: NH4.4 Ligand excluded by PLIP CL.8: 9 residues within 4Å: Chain C: N.11, L.13, S.15, Y.31, S.33, V.35, W.80, D.116 Ligands: NA.7 Ligand excluded by PLIP CL.11: 7 residues within 4Å: Chain D: N.11, L.13, S.15, Y.31, W.80, D.116 Ligands: NH4.10 Ligand excluded by PLIP

4 x FMT: FORMIC ACID(Non-functional Binders)

FMT.3: 7 residues within 4Å: Chain A: G.36, N.37, W.67, A.74, S.76, L.98 Chain D: W.108 1 PLIP interactions: 1 interactions with chain A Hydrogen bonds: A:N.37 FMT.6: 6 residues within 4Å: Chain B: G.36, N.37, A.74, S.76, L.98 Chain C: W.108 4 PLIP interactions: 4 interactions with chain B Hydrogen bonds: B:N.37, B:S.76, B:S.76 Water bridges: B:S.100 FMT.9: 7 residues within 4Å: Chain B: W.108 Chain C: G.36, N.37, W.67, A.74, S.76, L.98 1 PLIP interactions: 1 interactions with chain C Hydrogen bonds: C:N.37 FMT.12: 6 residues within 4Å: Chain A: W.108 Chain D: G.36, N.37, A.74, S.76, L.98 4 PLIP interactions: 4 interactions with chain D Hydrogen bonds: D:N.37, D:S.76, D:S.76 Water bridges: D:S.100

2 x NH4: AMMONIUM ION(Non-functional Binders)

NH4.4: 9 residues within 4Å: Chain B: N.11, L.13, S.15, Y.31, T.78, W.80, W.96, D.116 Ligands: CL.5 2 PLIP interactions: 2 interactions with chain B Hydrogen bonds: B:Y.31, B:Y.31 NH4.10: 9 residues within 4Å: Chain D: N.11, L.13, S.15, Y.31, T.78, W.80, W.96, D.116 Ligands: CL.11 2 PLIP interactions: 2 interactions with chain D Hydrogen bonds: D:Y.31, D:Y.31

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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