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

APOSTREPTAVIDIN PH 2.0 I222 COMPLEX

Coordinates

PDB Format

Method

X-RAY DIFFRACTION 1.40 Å

Oligo State

homo-tetramer

Ligands

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

NA.1: 4 residues within 4Å: Chain A: T.78, W.80, W.96 Ligands: CL.2 No protein-ligand interaction detected (PLIP) NA.5: 6 residues within 4Å: Chain B: L.13, T.78, W.80, W.96, D.116 Ligands: CL.4 1 PLIP interactions: 1 interactions with chain B Hydrogen bonds: B:D.116 NA.6: 4 residues within 4Å: Chain C: T.78, W.80, W.96 Ligands: CL.7 No protein-ligand interaction detected (PLIP) NA.10: 6 residues within 4Å: Chain D: L.13, T.78, W.80, W.96, D.116 Ligands: CL.9 1 PLIP interactions: 1 interactions with chain D Hydrogen bonds: D:D.116

6 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.3: 5 residues within 4Å: Chain B: V.35, G.36, N.37, L.98 Chain C: W.108 Ligand excluded by PLIP CL.4: 7 residues within 4Å: Chain B: N.11, L.13, S.15, Y.31, V.35, W.80 Ligands: NA.5 Ligand excluded by PLIP CL.7: 9 residues within 4Å: Chain C: N.11, L.13, S.15, Y.31, S.33, V.35, W.80, D.116 Ligands: NA.6 Ligand excluded by PLIP CL.8: 5 residues within 4Å: Chain A: W.108 Chain D: V.35, G.36, N.37, L.98 Ligand excluded by PLIP CL.9: 7 residues within 4Å: Chain D: N.11, L.13, S.15, Y.31, V.35, W.80 Ligands: NA.10 Ligand excluded by PLIP

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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