SMTL ID : 3gct.1 (1 other biounit)

STRUCTURE OF GAMMA-*CHYMOTRYPSIN IN THE RANGE $P*H 2.0 TO $P*H 10.5 SUGGESTS THAT GAMMA-CHYMOTRYPSIN IS A COVALENT ACYL-ENZYME ADDUCT AT LOW $P*H

Coordinates

PDB Format Compare

Method

X-RAY DIFFRACTION 1.60 Å

Oligo State

hetero-2-2-2-mer

Ligands

2 x UNK- PRO- GLY- ALA- TYR: UNK PRO GLY ALA TYR PEPTIDE(Non-covalent)

UNK-PRO-GLY-ALA-TYR.1: 15 residues within 4Å: Chain B: H.42 Chain C: W.24, K.27, S.41, S.42, C.43, M.44, G.45, S.47, V.65, S.66, W.67, G.68, S.69, S.70 11 PLIP interactions: 11 interactions with chain C Hydrophobic interactions: C:W.24, C:V.65, C:W.67 Hydrogen bonds: C:S.41, C:S.41, C:G.45, C:S.66, C:G.68, C:S.70 Water bridges: C:S.69, C:S.69 UNK-PRO-GLY-ALA-TYR.3: 15 residues within 4Å: Chain E: H.42 Chain F: W.24, K.27, S.41, S.42, C.43, M.44, G.45, S.47, V.65, S.66, W.67, G.68, S.69, S.70 11 PLIP interactions: 11 interactions with chain F Hydrophobic interactions: F:W.24, F:V.65, F:W.67 Hydrogen bonds: F:S.41, F:S.41, F:G.45, F:S.66, F:G.68, F:S.70 Water bridges: F:S.69, F:S.69

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

SO4.2: 4 residues within 4Å: Chain B: N.76, S.77 Chain C: W.89 Chain E: K.21 6 PLIP interactions: 1 interactions with chain C, 2 interactions with chain B, 3 interactions with chain E Hydrogen bonds: C:W.89, B:S.77 Water bridges: B:K.78, E:K.21, E:K.21 Salt bridges: E:K.21 SO4.4: 4 residues within 4Å: Chain B: K.21 Chain E: N.76, S.77 Chain F: W.89 6 PLIP interactions: 2 interactions with chain E, 3 interactions with chain B, 1 interactions with chain F Hydrogen bonds: E:S.77, F:W.89 Water bridges: E:K.78, B:K.21, B:K.21 Salt bridges: B:K.21

Links

RCSB   PDBe   PDBe-KB   PDBj   PDBsum   CATH   PLIP

Citation

Dixon, M.M. et al., Structure of gamma-chymotrypsin in the range pH 2.0 to pH 10.5 suggests that gamma-chymotrypsin is a covalent acyl-enzyme adduct at low pH. Int.J.Biol.Macromol. (1991)

Release Date

1991-10-15

Peptides

GAMMA-CHYMOTRYPSIN A: AD
GAMMA-CHYMOTRYPSIN A: BE
GAMMA-CHYMOTRYPSIN A: CF

SMTL:PDB

SMTL Chain Id:
PDB Chain Id:

A
E

D
E

B
F

E
F

C
G

F
G

GAMMA-CHYMOTRYPSIN A

GAMMA-CHYMOTRYPSIN A

GAMMA-CHYMOTRYPSIN A

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