ISDA: 6LKP

Deposition Date 2019-12-19

Release Date 2020-03-25

Last Version Date 2023-11-22

Entry Detail

PDB ID:

6LKP

Keywords:

DNA BINDING PROTEIN

Title:

Crystal structure of Dps1 from the thermophilic non-heterocystous filamentous cyanobacterium Thermoleptolyngbya sp. O-77

Biological Source:

Source Organism:

Leptolyngbya sp. O-77 (Taxon ID: 1080068)

Method Details:

Experimental Method:

X-RAY DIFFRACTION

Resolution:

2.90 Å

R-Value Free:

0.31

R-Value Work:

0.25

R-Value Observed:

0.25

Space Group:

P 43 2 2

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Macromolecular Entities

Polymer Type:polypeptide(L)
Molecule:DNA protection during starvation protein
Chain IDs:A, B, C, D, E, F
Chain Length:184
Number of Molecules:6
Biological Source:Leptolyngbya sp. O-77

Ligand Molecules

Primary Citation

Biochemical and structural characterization of a thermostable Dps protein with His-type ferroxidase centers and outer metal-binding sites.

Minato, T, Teramoto, T, Kakuta, Y, Ogo, S, Yoon, K.S.Show

Febs Open Bio 10 1219 1229 (2020)

PMID: 32170832 DOI: 10.1002/2211-5463.12837

Abstact

The DNA-binding protein from starved cells (Dps) is found in a wide range of microorganisms, and it has been well characterized. However, little is known about Dps proteins from nonheterocystous filamentous cyanobacteria. In this study, a Dps protein from the thermophilic nonheterocystous filamentous cyanobacterium Thermoleptolyngbya sp. O-77 (TlDps1) was purified and characterized. PAGE and CD analyses of TlDps1 demonstrated that it had higher thermostability than previously reported Dps proteins. X-ray crystallographic analysis revealed that TlDps1 possessed His-type ferroxidase centers within the cavity and unique metal-binding sites located on the surface of the protein, which presumably contributed to its exceedingly high thermostability.

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Chemical

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Primary Citation of related structures

Abstact

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