1NLQ image
Deposition Date 2003-01-07
Release Date 2003-03-01
Last Version Date 2024-02-14
Entry Detail
PDB ID:
1NLQ
Title:
The crystal structure of Drosophila NLP-core provides insight into pentamer formation and histone binding
Biological Source:
Source Organism:
Method Details:
Experimental Method:
Resolution:
1.50 Å
R-Value Free:
0.25
R-Value Work:
0.23
Space Group:
P 1 21 1
Macromolecular Entities
Polymer Type:polypeptide(L)
Molecule:Nucleoplasmin-like protein
Gene (Uniprot):Nlp
Chain IDs:A, B, C, D, E
Chain Length:108
Number of Molecules:5
Biological Source:Drosophila melanogaster
Ligand Molecules
Primary Citation
The crystal structure of Drosophila NLP-core Provides Insight into Pentamer Formation and Histone Binding
Structure 11 175 186 (2003)
PMID: 12575937 DOI: 10.1016/S0969-2126(03)00007-8

Abstact

The nucleoplasmin-like protein from Drosophila (dNLP) functions as a chaperone for core histones and may remodel chromatin in embryos. We now report the crystal structure of a dNLP-core pentamer at 1.5 A resolution. The monomer has an eight-stranded, beta barrel topology that is similar to nucleoplasmin (Np). However, a signature beta hairpin is tucked in along the lateral surface of the dNLP-core pentamer, while it extends outward in the Np-core decamer. Drosophila NLP and Np both assemble histone octamers. This process may require each chaperone to form a decamer, which would create symmetric binding sites for the histones. Conformational differences between dNLP and Np may reflect their different oligomeric states, while a conserved, nonpolar subunit interface may allow conformational plasticity during histone binding.

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Primary Citation of related structures