ISDA: 4FH1

Deposition Date 2012-06-05

Release Date 2013-01-09

Last Version Date 2023-09-13

Entry Detail

PDB ID:

4FH1

Keywords:

LIGASE

Title:

S. cerevisiae Ubc13-N79A

Biological Source:

Source Organism(s):

Saccharomyces cerevisiae (Taxon ID: 559292)

Expression System(s):

Escherichia coli

Method Details:

Experimental Method:

X-RAY DIFFRACTION

Resolution:

2.61 Å

R-Value Free:

0.24

R-Value Work:

0.21

R-Value Observed:

0.21

Space Group:

P 31 2 1

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Macromolecular Entities

Structures with similar UniProt ID

Protein Blast

Polymer Type:polypeptide(L)
Molecule:Ubiquitin-conjugating enzyme E2 13
Gene (Uniprot):UBC13
Mutagens:N79A, C87S
Chain IDs:A
Chain Length:153
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae

UniProt ID:P52490 Pfam ID:PF00179

Ligand Molecules

NHE

Primary Citation

A conserved asparagine has a structural role in ubiquitin-conjugating enzymes.

Berndsen, C.E, Wiener, R, Yu, I.W, Ringel, A.E, Wolberger, C.Show

Nat.Chem.Biol. 9 154 156 (2013)

PMID: 23292652 DOI: 10.1038/nchembio.1159

Abstact

It is widely accepted that ubiquitin-conjugating enzymes contain an active site asparagine that serves as an oxyanion hole, thereby stabilizing a negatively charged transition state intermediate and promoting ubiquitin transfer. Using structural and biochemical approaches to study the role of the conserved asparagine to ubiquitin conjugation by Ubc13-Mms2, we conclude that the importance of this residue stems primarily from its structural role in stabilizing an active site loop.

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Primary Citation of related structures

Abstact

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