1K6U

Crystal Structure of Cyclic Bovine Pancreatic Trypsin Inhibitor

PDB DOI: https://doi.org/10.2210/pdb1K6U/pdb

Classification: hydrolase inhibitor
Organism(s): Bos taurus
Mutation(s): Yes

Deposited: 2001-10-17 Released: 2001-12-19
Deposition Author(s): Botos, I., Wu, Z., Lu, W., Wlodawer, A.

Experimental Data Snapshot

Method: X-RAY DIFFRACTION
Resolution: 1.00 Å
R-Value Free: 0.162
R-Value Work: 0.118
R-Value Observed: 0.128

Starting Model: experimental
View more details

wwPDB Validation 3D Report Full Report

This is version 1.5 of the entry. See complete history.

Literature

Crystal structure of a cyclic form of bovine pancreatic trypsin inhibitor.

Botos, I., Wu, Z., Lu, W., Wlodawer, A.

(2001) FEBS Lett 509: 90-94

PubMed: 11734212 Search on PubMed
DOI: https://doi.org/10.1016/s0014-5793(01)03113-1
Primary Citation of Related Structures:
1K6U

PubMed Abstract:
The crystal structure of a cyclic form of a mutant of bovine pancreatic trypsin inhibitor has been solved at 1.0 A resolution. The protein was synthesized by native chemical ligation and its structure is almost indistinguishable from the previously described recombinant form of the same mutant; however, the new loop containing the former termini became much better ordered.

Organizational Affiliation

Protein Structure Section, Macromolecular Crystallography Laboratory, National Cancer Institute at Frederick, MD 21702, USA.

Macromolecule Content

Total Structure Weight: 7.28 kDa
Atom Count: 673
Modelled Residue Count: 58
Deposited Residue Count: 58
Unique protein chains: 1

Macromolecules

Find similar proteins by:

(by identity cutoff) | 3D Structure

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
PANCREATIC TRYPSIN INHIBITOR	A	58	N/A	Mutation(s): 4
UniProt
Find proteins for P00974 (Bos taurus) Explore P00974 Go to UniProtKB: P00974
Entity Groups
Sequence Clusters	30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt Group	P00974
Sequence Annotations Expand
Reference Sequence

Small Molecules

Ligands 2 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram	3D Interactions
SO4 Query on SO4 Download Ideal Coordinates CCD File SDF format, chain B [auth A] SDF format, chain C [auth A] SDF format, chain D [auth A] SDF format, chain E [auth A] SDF format, chain F [auth A] SDF format, chain G [auth A] SDF format, chain H [auth A] MOL2 format, chain B [auth A] MOL2 format, chain C [auth A] MOL2 format, chain D [auth A] MOL2 format, chain E [auth A] MOL2 format, chain F [auth A] MOL2 format, chain G [auth A] MOL2 format, chain H [auth A] mmCIF format, chain B [auth A] mmCIF format, chain C [auth A] mmCIF format, chain D [auth A] mmCIF format, chain E [auth A] mmCIF format, chain F [auth A] mmCIF format, chain G [auth A] mmCIF format, chain H [auth A]	B [auth A] C [auth A] D [auth A] E [auth A] F [auth A] B [auth A], C [auth A], D [auth A], E [auth A], F [auth A], G [auth A], H [auth A]	SULFATE ION O₄ S QAOWNCQODCNURD-UHFFFAOYSA-L		Interactions Focus chain B [auth A] Focus chain C [auth A] Focus chain D [auth A] Focus chain E [auth A] Focus chain F [auth A] Focus chain G [auth A] Focus chain H [auth A] Interactions & Density Focus chain B [auth A] Focus chain C [auth A] Focus chain D [auth A] Focus chain E [auth A] Focus chain F [auth A] Focus chain G [auth A] Focus chain H [auth A]
EDO Query on EDO Download Ideal Coordinates CCD File SDF format, chain I [auth A] SDF format, chain J [auth A] MOL2 format, chain I [auth A] MOL2 format, chain J [auth A] mmCIF format, chain I [auth A] mmCIF format, chain J [auth A]	I [auth A], J [auth A]	1,2-ETHANEDIOL C₂ H₆ O₂ LYCAIKOWRPUZTN-UHFFFAOYSA-N		Interactions Focus chain I [auth A] Focus chain J [auth A] Interactions & Density Focus chain I [auth A] Focus chain J [auth A]