2QYI | pdb_00002qyi

Crystal structure of a binary complex between an engineered trypsin inhibitor and Bovine trypsin

PDB DOI: https://doi.org/10.2210/pdb2QYI/pdb

Classification: Hydrolase/Hydrolase inhibitor
Organism(s): Bos taurus, Psophocarpus tetragonolobus
Expression System: Escherichia coli
Mutation(s): Yes

Deposited: 2007-08-15 Released: 2008-08-19
Deposition Author(s): Khamrui, S., Dasgupta, J., Dattagupta, J.K., Sen, U.

Experimental Data Snapshot

Method: X-RAY DIFFRACTION
Resolution: 2.60 Å
R-Value Free:
0.268 (Depositor)
R-Value Work:
0.208 (Depositor)

wwPDB Validation 3D Report Full Report

Validation slider image for 2QYI

This is version 1.3 of the entry. See complete history.

Literature

Crystal structure of a binary complex between an engineered trypsin inhibitor and Bovine trypsin

Sen, U.

To be published.

Macromolecule Content

Total Structure Weight: 87.41 kDa
Atom Count: 6,315
Modeled Residue Count: 796
Deposited Residue Count: 812
Unique protein chains: 2

Macromolecules

Find similar proteins by:

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Cationic trypsin	A, C	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 Groups
Sequence Clusters	30% Identity 50% Identity 70% Identity 90% Identity 95% Identity 100% Identity
UniProt Group	P00760
Sequence Annotations Expand
Reference Sequence

Find similar proteins by:

Entity ID: 2
Molecule	Chains	Sequence Length	Organism	Details	Image
Chymotrypsin inhibitor 3	B, D	183	Psophocarpus tetragonolobus	Mutation(s): 1
UniProt
Find proteins for P10822 (Psophocarpus tetragonolobus) Explore P10822 Go to UniProtKB: P10822
Entity Groups
Sequence Clusters	30% Identity 50% Identity 70% Identity 90% Identity 95% Identity 100% Identity
UniProt Group	P10822
Sequence Annotations Expand
Reference Sequence

Small Molecules

Ligands 2 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram	3D Interactions
NI Query on NI Download:Ideal Coordinates CCD File SDF format, chain F [auth B] MOL2 format, chain F [auth B] mmCIF format, chain F [auth B]	F [auth B]	NICKEL (II) ION Ni VEQPNABPJHWNSG-UHFFFAOYSA-N		Interactions Focus chain F [auth B]
CA Query on CA Download:Ideal Coordinates CCD File SDF format, chain G [auth C] SDF format, chain E [auth A] MOL2 format, chain G [auth C] MOL2 format, chain E [auth A] mmCIF format, chain G [auth C] mmCIF format, chain E [auth A]	E [auth A], G [auth C]	CALCIUM ION Ca BHPQYMZQTOCNFJ-UHFFFAOYSA-N		Interactions Focus chain E [auth A] Focus chain G [auth C]

Experimental Data & Validation

Experimental Data

Method: X-RAY DIFFRACTION
Resolution: 2.60 Å
R-Value Free: 0.268 (Depositor)
R-Value Work: 0.208 (Depositor)

Space Group: C 1 2 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 143.694	α = 90
b = 77.437	β = 103
c = 72.907	γ = 90

Software Package:

Software Name	Purpose
CNS	refinement
PDB_EXTRACT	data extraction

Structure Validation

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View more in-depth experimental data

Entry History

Deposition Data

Released Date: 2008-08-19

Deposition Author(s):

Dattagupta, J.K.

Revision History (Full details and data files)

Version 1.0: 2008-08-19
Type: Initial release
Version 1.1: 2011-07-13
Changes: Version format compliance
Version 1.2: 2021-11-10
Changes: Database references, Derived calculations
Version 1.3: 2024-10-16
Changes: Data collection, Structure summary

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RCSB PDB Core Operations are funded by the U.S. National Science Foundation (DBI-2321666), the US Department of Energy (DE-SC0019749), and the National Cancer Institute, National Institute of Allergy and Infectious Diseases, and National Institute of General Medical Sciences of the National Institutes of Health under grant R01GM157729. RCSB PDB uses resources of the National Energy Research Scientific Computing Center (NERSC), a Department of Energy User Facility.