1YPH | pdb_00001yph

High resolution structure of bovine alpha-chymotrypsin

• PDB DOI: https://doi.org/10.2210/pdb1YPH/pdb

• Classification: HYDROLASE
• Organism(s): Bos taurus
• Mutation(s): No 


• Deposited: 2005-01-31 Released: 2006-02-14 
• Deposition Author(s): Razeto, A., Galunsky, B., Kasche, V., Wilson, K.S., Lamzin, V.S.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.34 Å
• R-Value Free: 
  0.189 (Depositor), 0.150 (DCC) 
• R-Value Work: 
  0.139 (Depositor), 0.140 (DCC) 
• R-Value Observed: 
  0.139 (Depositor) 

Starting Model: experimental

Literature

High resolution structure of native bovine alpha-chymotrypsin

Razeto, A., Galunsky, B., Kasche, V., Wilson, K.S., Lamzin, V.S.

To be published.

Biological Assembly 1  

Global Symmetry: Cyclic - C2  (Explore in 3D)
Global Stoichiometry: Hetero 6-mer - A2B2C2 Pseudo Symmetry: Asymmetric - C1 
Pseudo Stoichiometry: Hetero 6-mer - A2B2C1D1 

Biological assembly 1 assigned by authors and generated by PISA (software)

Macromolecule Content 

• Total Structure Weight: 51.01 kDa 
• Atom Count: 4,288 
• Modeled Residue Count: 478 
• Deposited Residue Count: 482 
• Unique protein chains: 3

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
CHYMOTRYPSIN A, chain A	A, D [auth B]	13	Bos taurus	Mutation(s): 0  EC: 3.4.21.1
UniProt
Find proteins for P00766 (Bos taurus) Explore P00766  Go to UniProtKB:  P00766

Entity ID: 2
Molecule	Chains	Sequence Length	Organism	Details	Image
CHYMOTRYPSIN A, chain B	B [auth C], E [auth D]	131	Bos taurus	Mutation(s): 0  EC: 3.4.21.1
UniProt
Find proteins for P00766 (Bos taurus) Explore P00766  Go to UniProtKB:  P00766

Entity ID: 3
Molecule	Chains	Sequence Length	Organism	Details	Image
CHYMOTRYPSIN A, chain C	C [auth E], F	97	Bos taurus	Mutation(s): 0  EC: 3.4.21.1
UniProt
Find proteins for P00766 (Bos taurus) Explore P00766  Go to UniProtKB:  P00766

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
SO4	G [auth C], H [auth E], I [auth D], J [auth D], K [auth F]	SULFATE ION O4 S QAOWNCQODCNURD-UHFFFAOYSA-L

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.34 Å
• R-Value Free:  0.189 (Depositor), 0.150 (DCC) 
• R-Value Work:  0.139 (Depositor), 0.140 (DCC) 
• R-Value Observed: 0.139 (Depositor) 

Space Group: P 1 2₁ 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 43.83	α = 90
b = 77.51	β = 106.3
c = 62.77	γ = 90

Software Package:

Software Name	Purpose
DENZO	data reduction
SCALEPACK	data scaling
AMoRE	phasing
REFMAC	refinement

Structure Validation

Entry History 

Deposition Data

• Released Date: 2006-02-14 
Deposition Author(s): Razeto, A., Galunsky, B., Kasche, V., Wilson, K.S., Lamzin, V.S.

Revision History  

• Version 1.0: 2006-02-14
  Type: Initial release
  
• Version 1.1: 2008-04-30
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Version format compliance
• Version 1.3: 2023-10-25
  Changes: Data collection, Database references, Derived calculations, Refinement description
• Version 1.4: 2024-10-30
  Changes: Structure summary