SMTL ID : 2gct.1

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

Coordinates

PDB Format Compare

Method

X-RAY DIFFRACTION 1.80 Å

Oligo State

hetero-2-2-2-mer

Ligands

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

UNK-PRO-GLY-ALA-TYR.1: 16 residues within 4Å: Chain B: H.42 Chain C: W.24, K.27, S.41, S.42, C.43, M.44, G.45, D.46, S.47, V.65, S.66, W.67, G.68, S.69 Ligands: UNK-PRO-GLY-ALA-TYR.4 13 PLIP interactions: 13 interactions with chain C Hydrophobic interactions: C:W.24, C:W.67, C:W.67 Hydrogen bonds: C:S.41, C:G.45, C:D.46, C:S.47, C:S.66, C:G.68, C:G.68, C:S.69 Water bridges: C:S.41, C:S.70 UNK-PRO-GLY-ALA-TYR.4: 16 residues within 4Å: Chain E: H.42 Chain F: W.24, K.27, S.41, S.42, C.43, M.44, G.45, D.46, S.47, V.65, S.66, W.67, G.68, S.69 Ligands: UNK-PRO-GLY-ALA-TYR.1 13 PLIP interactions: 13 interactions with chain F Hydrophobic interactions: F:W.24, F:W.67, F:W.67 Hydrogen bonds: F:S.41, F:G.45, F:D.46, F:S.47, F:S.66, F:G.68, F:G.68, F:S.69 Water bridges: F:S.41, F:S.70

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

SO4.2: 3 residues within 4Å: Chain B: S.77 Chain C: W.89 Chain E: K.21 4 PLIP interactions: 1 interactions with chain C, 2 interactions with chain B, 1 interactions with chain E Hydrogen bonds: C:W.89, B:S.77, B:S.77 Salt bridges: E:K.21 SO4.3: 7 residues within 4Å: Chain B: Q.19, H.25, E.55, Q.58, S.60, I.65, K.67 4 PLIP interactions: 4 interactions with chain B Hydrogen bonds: B:Q.19, B:S.60 Salt bridges: B:H.25, B:K.67 SO4.5: 3 residues within 4Å: Chain B: K.21 Chain E: S.77 Chain F: W.89 4 PLIP interactions: 2 interactions with chain E, 1 interactions with chain B, 1 interactions with chain F Hydrogen bonds: E:S.77, E:S.77, F:W.89 Salt bridges: B:K.21 SO4.6: 7 residues within 4Å: Chain E: Q.19, H.25, E.55, Q.58, S.60, I.65, K.67 4 PLIP interactions: 4 interactions with chain E Hydrogen bonds: E:Q.19, E:S.60 Salt bridges: E:H.25, E:K.67

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
A

D
A

B
B

E
B

C
C

F
C

GAMMA-CHYMOTRYPSIN A

GAMMA-CHYMOTRYPSIN A

GAMMA-CHYMOTRYPSIN A

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