1M8X image
Deposition Date 2002-07-26
Release Date 2002-09-25
Last Version Date 2024-02-14
Entry Detail
PDB ID:
1M8X
Title:
CRYSTAL STRUCTURE OF THE PUMILIO-HOMOLOGY DOMAIN FROM HUMAN PUMILIO1 IN COMPLEX WITH NRE1-14 RNA
Biological Source:
Source Organism:
Homo sapiens (Taxon ID: 9606)
(Taxon ID: )
Method Details:
Experimental Method:
Resolution:
2.20 Å
R-Value Free:
0.29
R-Value Work:
0.23
R-Value Observed:
0.23
Space Group:
C 1 2 1
Macromolecular Entities
Polymer Type:polypeptide(L)
Molecule:Pumilio 1
Gene (Uniprot):PUM1
Chain IDs:C (auth: A), D (auth: B)
Chain Length:349
Number of Molecules:2
Biological Source:Homo sapiens
Polymer Type:polyribonucleotide
Molecule:5'-R(P*UP*UP*GP*UP*AP*UP*AP*U)-3'
Chain IDs:A (auth: C)
Chain Length:8
Number of Molecules:1
Biological Source:
Polymer Type:polyribonucleotide
Molecule:5'-R(P*UP*GP*UP*AP*UP*AP*U)-3'
Chain IDs:B (auth: D)
Chain Length:7
Number of Molecules:1
Biological Source:
Primary Citation
MODULAR RECOGNITION OF RNA BY A HUMAN PUMILIO-HOMOLOGY DOMAIN
CELL(CAMBRIDGE,MASS.) 110 501 512 (2002)
PMID: 12202039 DOI: 10.1016/S0092-8674(02)00873-5

Abstact

Puf proteins are developmental regulators that control mRNA stability and translation by binding sequences in the 3' untranslated regions of their target mRNAs. We have determined the structure of the RNA binding domain of the human Puf protein, Pumilio1, bound to a high-affinity RNA ligand. The RNA binds the concave surface of the molecule, where each of the protein's eight repeats makes contacts with a different RNA base via three amino acid side chains at conserved positions. We have mutated these three side chains in one repeat, thereby altering the sequence specificity of Pumilio1. Thus, the high affinity and specificity of the PUM-HD for RNA is achieved using multiple copies of a simple repeated motif.

Legend

Protein

Chemical

Disease

Primary Citation of related structures