3UI2: Crystal Structure Of The Cpsrp54 Tail Bound To Cpsrp43

Chromodomains typically recruit protein complexes to chromatin and read the epigenetic histone code by recognizing lysine methylation in histone tails. We report the crystal structure of the chloroplast signal recognition particle (cpSRP) core from Arabidopsis thaliana, with the cpSRP54 tail comprising an arginine-rich motif bound to the second chromodomain of cpSRP43. A twinned aromatic cage reads out two neighboring nonmethylated arginines and adapts chromodomains to a non-nuclear function in post-translational targeting.
PDB ID: 3UI2Download
MMDB ID: 96376
PDB Deposition Date: 2011/11/4
Updated in MMDB: 2012/06
Experimental Method:
x-ray diffraction
Resolution: 3.18  Å
Source Organism:
Similar Structures:
Biological Unit for 3UI2: dimeric; determined by author and by software (PISA)
Molecular Components in 3UI2
Label Count Molecule
Proteins (2 molecules)
Signal Recognition Particle 43 KDA Protein, Chloroplastic(Gene symbol: CAO)
Molecule annotation
Signal Recognition Particle 54 KDA Protein, Chloroplastic(Gene symbol: CPSRP54)
Molecule annotation
* Click molecule labels to explore molecular sequence information.

Citing MMDB