SMTL ID : 1pca.1

THREE DIMENSIONAL STRUCTURE OF PORCINE PANCREATIC PROCARBOXYPEPTIDASE A. A COMPARISON OF THE A AND B ZYMOGENS AND THEIR DETERMINANTS FOR INHIBITION AND ACTIVATION

Coordinates

PDB Format

Method

X-RAY DIFFRACTION 2.00 Å

Oligo State

monomer

Ligands

1 x ZN: ZINC ION(Non-covalent)

ZN.1: 3 residues within 4Å: Chain A: H.164, E.167, H.291 5 PLIP interactions: 4 interactions with chain A, 1 Ligand-Water interactions Metal complexes: A:H.164, A:E.167, A:E.167, A:H.291, H2O.1

1 x CIT: CITRIC ACID(Non-functional Binders)

CIT.2: 6 residues within 4Å: Chain A: D.17, A.19, Q.20, K.23, H.67, I.69 4 PLIP interactions: 4 interactions with chain A Hydrogen bonds: A:Q.20, A:H.67, A:H.67 Salt bridges: A:K.23

1 x VAL: VALINE(Non-covalent)

VAL.3: 8 residues within 4Å: Chain A: H.164, R.222, N.239, R.240, I.338, Y.343, A.345, E.365 10 PLIP interactions: 10 interactions with chain A, Hydrophobic interactions: A:I.338, A:Y.343, A:A.345 Hydrogen bonds: A:N.239, A:E.365 Water bridges: A:R.222, A:R.222 Salt bridges: A:H.164, A:R.222, A:R.240

Links

RCSB   PDBe   PDBe-KB   PDBj   PDBsum   CATH   PLIP

Citation

Guasch, A. et al., Three-dimensional structure of porcine pancreatic procarboxypeptidase A. A comparison of the A and B zymogens and their determinants for inhibition and activation. J.Mol.Biol. (1992)

Release Date

1993-10-31

Peptides

PROCARBOXYPEPTIDASE A PCPA: A

SMTL:PDB

SMTL Chain Id:
PDB Chain Id:

A
A

PROCARBOXYPEPTIDASE A PCPA