ISDA: 2WX1

Deposition Date 2009-10-30

Release Date 2009-11-24

Last Version Date 2024-10-09

Entry Detail

PDB ID:

2WX1

Keywords:

PROTEIN BINDING

Title:

TAB2 NZF DOMAIN IN COMPLEX WITH Lys63-linked tri-ubiquitin, P212121

Biological Source:

Source Organism:

HOMO SAPIENS (Taxon ID: 9606)
BOS TAURUS (Taxon ID: 9913)

Host Organism:

ESCHERICHIA COLI

Method Details:

Experimental Method:

X-RAY DIFFRACTION

Resolution:

3.00 Å

R-Value Free:

0.26

R-Value Work:

0.22

R-Value Observed:

0.22

Space Group:

P 21 21 21

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Macromolecular Entities

Structures with similar UniProt ID

Protein Blast

Polymer Type:polypeptide(L)
Molecule:UBIQUITIN
Chain IDs:A, B
Chain Length:76
Number of Molecules:2
Biological Source:BOS TAURUS

UniProt ID:P0CH28 Pfam ID:PF00240

Structures with similar UniProt ID

Protein Blast

Polymer Type:polypeptide(L)
Molecule:MITOGEN-ACTIVATED PROTEIN KINASE KINASE KINASE 7-INTERACTING PROTEIN 2
Gene (Uniprot):TAB2
Chain IDs:C
Chain Length:31
Number of Molecules:1
Biological Source:HOMO SAPIENS

UniProt ID:Q9NYJ8

Ligand Molecules

Primary Citation

Two-Sided Ubiquitin Binding Explains Specificity of the Tab2 Nzf Domain

Kulathu, Y, Akutsu, M, Bremm, A, Hofmann, K, Komander, D.Show

Nat.Struct.Mol.Biol. 16 1328 ? (2009)

PMID: 19935683 DOI: 10.1038/NSMB.1731

Abstact

The protein kinase TAK1 is activated by binding to Lys63 (K63)-linked ubiquitin chains through its subunit TAB2. Here we analyze crystal structures of the TAB2 NZF domain bound to Lys63-linked di- and triubiquitin, revealing that TAB2 binds adjacent ubiquitin moieties via two distinct binding sites. The conformational constraints imposed by TAB2 on a Lys63 dimer cannot be adopted by linear chains, explaining why TAK1 cannot be activated by linear ubiquitination events.

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Primary Citation of related structures