1AQ7

TRYPSIN WITH INHIBITOR AERUGINOSIN 98-B

• PDB DOI: https://doi.org/10.2210/pdb1AQ7/pdb

• Classification: HYDROLASE/HYDROLASE INHIBITOR
• Organism(s): Bos taurus, Microcystis aeruginosa NIES-98
• Mutation(s): No 


• Deposited: 1997-08-07 Released: 1998-02-25 
• Deposition Author(s): Sandler, B., Murakami, M., Clardy, J.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.20 Å
• R-Value Free: 0.237 
• R-Value Work: 0.164 
• R-Value Observed: 0.164 

Starting Model: experimental

Literature

Atomic Structure of the Trypsin-Aeruginosin 98-B Complex

Sandler, B., Murakami, M., Clardy, J.

(1998) J Am Chem Soc 120: 595-596

Biological Assembly 1  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Monomer - A1 

Biological assembly 1 assigned by authors.

Macromolecule Content

• Total Structure Weight: 23.98 kDa 
• Atom Count: 1,886 
• Modelled Residue Count: 227 
• Deposited Residue Count: 227 
• Unique protein chains: 2

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
TRYPSIN	A	223	Bos taurus	Mutation(s): 0  EC: 3.4.21.4
UniProt
Find proteins for P00760 (Bos taurus) Explore P00760  Go to UniProtKB:  P00760

Entity ID: 2
Molecule	Chains	Sequence Length	Organism	Details	Image
AERUGINOSIN 98-B	B	4	Microcystis aeruginosa NIES-98	Mutation(s): 0

Small Molecules

Modified Residues  1 Unique
ID	Chains	Type	Formula	2D Diagram	Parent
XPR	B	L-PEPTIDE LINKING	C9 H15 N O6 S		PRO

Biologically Interesting Molecules (External Reference) 1 Unique

Entity ID: 2
ID	Chains	Name	Type/Class	2D Diagram	3D Interactions
PRD_000556	B	AERUGINOSIN 98-B	Oligopeptide / Thrombin inhibitor, Trypsin inhibitor

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.20 Å
• R-Value Free: 0.237 
• R-Value Work: 0.164 
• R-Value Observed: 0.164 
• Space Group: P 6₁

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 48.3	α = 90
b = 48.3	β = 90
c = 145.2	γ = 120

Software Package:

Software Name	Purpose
DENZO	data reduction
SCALEPACK	data scaling
X-PLOR	model building
X-PLOR	refinement
X-PLOR	phasing

Structure Validation

Entry History 

Deposition Data

• Released Date: 1998-02-25 
Deposition Author(s): Sandler, B., Murakami, M., Clardy, J.

Revision History  

• Version 1.0: 1998-02-25
  Type: Initial release
  
• Version 1.1: 2008-03-03
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Atomic model, Database references, Derived calculations, Non-polymer description, Structure summary, Version format compliance
• Version 1.3: 2012-12-12
  Changes: Other
• Version 1.4: 2023-08-02
  Changes: Advisory, Database references, Derived calculations, Refinement description