6BK4

Crystal structure of the HR-1 domain of Drosophila caprin in the P212121 space group

• PDB DOI: https://doi.org/10.2210/pdb6BK4/pdb

• Classification: RNA BINDING PROTEIN
• Organism(s): Drosophila melanogaster
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 2017-11-07 Released: 2018-11-07 
• Deposition Author(s): Zhu, J., Wu, Y., Huang, X., Du, Z.
• Funding Organization(s): National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.80 Å
• R-Value Free: 0.245 
• R-Value Work: 0.215 
• R-Value Observed: 0.217 

Literature

Crystal structure of a dimerization domain of Drosophila Caprin: further supports the assembly of an evolutionarily conserved ribonucleoprotein complex containing Caprin and FMRP

Zhu, J., Wu, Y., Huang, X., Du, Z.

To be published.

Biological Assembly 1  

Global Symmetry: Cyclic - C2  (Explore in 3D)
Global Stoichiometry: Homo 2-mer - A2 

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

Biological Assembly Evidence: gel filtration

Macromolecule Content

• Total Structure Weight: 28.56 kDa 
• Atom Count: 1,714 
• Modelled Residue Count: 201 
• Deposited Residue Count: 248 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Caprin homolog	A, B	124	Drosophila melanogaster	Mutation(s): 0  Gene Names: Capr, CG18811
UniProt
Find proteins for Q9I7D3 (Drosophila melanogaster) Explore Q9I7D3  Go to UniProtKB:  Q9I7D3

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.80 Å
• R-Value Free: 0.245 
• R-Value Work: 0.215 
• R-Value Observed: 0.217 
• Space Group: P 2₁ 2₁ 2₁

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 53.05	α = 90
b = 60.04	β = 90
c = 99.4	γ = 90

Software Package:

Software Name	Purpose
MOSFLM	data collection
SCALA	data scaling
PHENIX	refinement
PDB_EXTRACT	data extraction
iMOSFLM	data reduction
PHASER	phasing

Structure Validation

Entry History & Funding Information

Deposition Data

• Released Date: 2018-11-07 
Deposition Author(s): Zhu, J., Wu, Y., Huang, X., Du, Z.

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Funding Organization	Location	Grant Number
National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)	United States	1R15GM116062-01

Revision History  

• Version 1.0: 2018-11-07
  Type: Initial release
  
• Version 1.1: 2019-02-20
  Changes: Author supporting evidence, Data collection
• Version 1.2: 2020-01-01
  Changes: Author supporting evidence
• Version 1.3: 2023-10-04
  Changes: Data collection, Database references, Refinement description