8GQQ

The three-dimensional structure of Cystatin A2, a cysteine protease inhibitor from Dictyostelium discoideum

PDB DOI: https://doi.org/10.2210/pdb8GQQ/pdb

Classification: STRUCTURAL PROTEIN
Organism(s): Dictyostelium discoideum AX3
Expression System: Escherichia coli 'BL21-Gold(DE3)pLysS AG
Mutation(s): No

Deposited: 2022-08-30 Released: 2023-09-06
Deposition Author(s): Dinh, T.T., Dao, O., Lee, K.H.
Funding Organization(s): National Research Foundation (NRF, Korea)

Experimental Data Snapshot

Method: X-RAY DIFFRACTION
Resolution: 1.07 Å
R-Value Free: 0.190
R-Value Work: 0.179
R-Value Observed: 0.179

wwPDB Validation 3D Report Full Report

This is version 1.0 of the entry. See complete history.

Literature

The three-dimensional structure of Cystatin A2, a cysteine protease inhibitor from Dictyostelium discoideum

Dinh, T.T., Dao, O., Lee, K.H.

To be published.

Macromolecule Content

Total Structure Weight: 10.85 kDa
Atom Count: 894
Modelled Residue Count: 99
Deposited Residue Count: 99
Unique protein chains: 1

Macromolecules

Find similar proteins by:

(by identity cutoff) | 3D Structure

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Cystatin-A2	A	99	Dictyostelium discoideum AX3	Mutation(s): 0 Gene Names: cpiB, DDB_G0280439
UniProt
Find proteins for Q65YR7 (Dictyostelium discoideum) Explore Q65YR7 Go to UniProtKB: Q65YR7
Entity Groups
Sequence Clusters	30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt Group	Q65YR7
Sequence Annotations Expand
Reference Sequence

Experimental Data & Validation

Experimental Data

Method: X-RAY DIFFRACTION
Resolution: 1.07 Å
R-Value Free: 0.190
R-Value Work: 0.179
R-Value Observed: 0.179
Space Group: P 2₁ 2₁ 2

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 59.273	α = 90
b = 63.274	β = 90
c = 24.911	γ = 90

Software Package:

Software Name	Purpose
HKL-2000	data scaling
PHENIX	refinement
PDB_EXTRACT	data extraction
HKL-2000	data reduction
Coot	model building

Structure Validation

View Full Validation Report

Entry History & Funding Information

Deposition Data

Released Date: 2023-09-06

Deposition Author(s):

Funding Organization	Location	Grant Number
National Research Foundation (NRF, Korea)	Korea, Republic Of	--

Revision History (Full details and data files)

Version 1.0: 2023-09-06
Type: Initial release

RCSB PDB Core Operations are funded by the National Science Foundation (DBI-1832184), 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 R01GM133198.