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PDBsum entry 1hja
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protein ligands Protein-protein interface(s) links
Complex (hydrolase/inhibitor) PDB id
1hja

 

 

 

 

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Contents
Protein chains
131 a.a. *
97 a.a. *
51 a.a. *
Ligands
CYS-GLY-VAL-PRO-
ALA-ILE-GLN-PRO-
VAL-LEU
Waters ×99
* Residue conservation analysis
PDB id:
1hja
Name: Complex (hydrolase/inhibitor)
Title: Lys 18 variant of turkey ovomucoid inhibitor third domain complexed with alpha-chymotrypsin
Structure: Alpha-chymotrypsin. Chain: a. Alpha-chymotrypsin. Chain: b. Engineered: yes. Alpha-chymotrypsin. Chain: c. Engineered: yes. Ovomucoid inhibitor.
Source: Bos taurus. Cattle. Organism_taxid: 9913. Other_details: commercial product of worthington biochemical corporation. Expressed in: escherichia coli. Expression_system_taxid: 562. Meleagris gallopavo. Turkey.
Biol. unit: Tetramer (from PQS)
Resolution:
2.30Å     R-factor:   0.193     R-free:   0.246
Authors: J.-H.Ding,M.N.G.James
Key ref: J.Ding et al. Crystal structure of lys18 variant of turkey ovomucoid inhibitor third domain complexed with alpha-Chymotrypsin at 2.3 a. To be published, .
Date:
09-Jul-97     Release date:   14-Jan-98    
PROCHECK
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 Headers
 References

Protein chain
Pfam   ArchSchema ?
P00766  (CTRA_BOVIN) -  Chymotrypsinogen A from Bos taurus
Seq:
Struc: 		245 a.a.
131 a.a.
Protein chain
Pfam   ArchSchema ?
P00766  (CTRA_BOVIN) -  Chymotrypsinogen A from Bos taurus
Seq:
Struc: 		245 a.a.
97 a.a.
Protein chain
Pfam   ArchSchema ?
P68390  (IOVO_MELGA) -  Ovomucoid from Meleagris gallopavo
Seq:
Struc: 		185 a.a.
51 a.a.*
Key:    PfamA domain  Secondary structure  CATH domain
* PDB and UniProt seqs differ at 1 residue position (black cross)

 Enzyme reactions 
   Enzyme class: Chains B, C: E.C.3.4.21.1  - chymotrypsin.
[IntEnz]   [ExPASy]   [KEGG]   [BRENDA]
      Reaction: Preferential cleavage: Tyr-|-Xaa, Trp-|-Xaa, Phe-|-Xaa, Leu-|-Xaa.

 

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