SMTL ID : 5bir.3 (2 other biounits)

DISECTING HISTIDINE INTERACTIONS IN RIBONUCLEASE T1 USING ASN AND GLN MUTATIONS

Coordinates

PDB Format

Method

X-RAY DIFFRACTION 2.00 Å

Oligo State

homo-dimer

Ligands

4 x CA: CALCIUM ION(Non-covalent)

CA.1: 1 residues within 4Å: Chain A: Q.85 No protein-ligand interaction detected (PLIP) CA.2: 3 residues within 4Å: Chain A: G.47, D.49 Chain B: Y.45 5 PLIP interactions: 2 interactions with chain A, 1 interactions with chain B, 2 Ligand-Water interactions Metal complexes: A:G.47, A:D.49, B:Y.45, H2O.5, H2O.6 CA.4: 1 residues within 4Å: Chain B: Q.85 No protein-ligand interaction detected (PLIP) CA.5: 3 residues within 4Å: Chain A: Y.45 Chain B: G.47, D.49 5 PLIP interactions: 2 interactions with chain B, 1 interactions with chain A, 2 Ligand-Water interactions Metal complexes: B:G.47, B:D.49, A:Y.45, H2O.2, H2O.3

2 x 2GP: GUANOSINE-2'-MONOPHOSPHATE(Non-covalent)

2GP.3: 11 residues within 4Å: Chain A: Y.38, H.40, K.41, Y.42, N.43, N.44, Y.45, E.46, E.58, N.98, F.100 6 PLIP interactions: 6 interactions with chain A Hydrogen bonds: A:N.43, A:N.44, A:Y.45, A:N.98 Salt bridges: A:H.40, A:E.46 2GP.6: 11 residues within 4Å: Chain B: Y.38, H.40, K.41, Y.42, N.43, N.44, Y.45, E.46, E.58, N.98, F.100 7 PLIP interactions: 7 interactions with chain B Hydrogen bonds: B:Y.38, B:N.43, B:N.44, B:Y.45, B:N.98 Salt bridges: B:H.40, B:E.46

Links

RCSB   PDBe   PDBe-KB   PDBj   PDBsum   CATH   PLIP

Citation

De Vos, S. et al., Dissecting histidine interactions of ribonuclease T1 with asparagine and glutamine replacements: analysis of double mutant cycles at one position. J.Mol.Biol. (1998)

Release Date

1997-12-31

Peptides

RIBONUCLEASE T1: AB

SMTL:PDB

SMTL Chain Id:
PDB Chain Id:

A
B

B
B

RIBONUCLEASE T1

Related Entries With Identical Sequence