ISDA

Deposition Date 2012-03-05

Release Date 2012-03-21

Last Version Date 2024-11-20

Entry Detail

PDB ID:

4E0Q

Keywords:

UNKNOWN FUNCTION

Title:

Crystal structure of MPN domain from COP9 signalosome

Biological Source:

Source Organism:

Drosophila melanogaster (Taxon ID: 7227)

Host Organism:

Escherichia coli

Method Details:

Experimental Method:

X-RAY DIFFRACTION

Resolution:

2.50 Å

R-Value Free:

0.26

R-Value Work:

0.23

R-Value Observed:

0.23

Space Group:

P 43 21 2

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Macromolecular Entities

Structures with similar UniProt ID

Protein Blast

Polymer Type:polypeptide(L)
Molecule:COP9 signalosome complex subunit 6
Gene (Uniprot):CSN6
Chain IDs:A, B
Chain Length:141
Number of Molecules:2
Biological Source:Drosophila melanogaster

UniProt ID:Q9VCY3 Pfam ID:PF01398

Modified Residue

Compound ID	Chain ID	Parent Comp ID	Details	2D Image
MSE	A	MET	SELENOMETHIONINE

Primary Citation

The crystal structure of the MPN domain from the COP9 signalosome subunit CSN6

Zhang, H, Gao, Z.Q, Wang, W.J, Liu, G.F, Shtykova, E.V, Xu, J.H, Li, L.F, Su, X.D, Dong, Y.H.Show

Febs Lett. 586 1147 1153 (2012)

PMID: 22575649 DOI: 10.1016/j.febslet.2012.03.029

Abstact

The COP9 signalosome (CSN) is a multiprotein complex containing eight subunits and is highly conserved from fungi to human. CSN is proposed to widely participate in many physiological processes, including protein degradation, DNA damage response and signal transduction. Among those subunits, only CSN5 and CSN6 belong to JAMM family. CSN5 possesses isopeptidase activity, but CSN6 lacks this ability. Here we report the 2.5Å crystal structure of MPN domain from Drosophila melanogaster CSN6. Structural comparison with other MPN domains, along with bioinformation analysis, suggests that MPN domain from CSN6 may serve as a scaffold instead of a metalloprotease.

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