ISDA

Deposition Date 2009-05-07

Release Date 2009-11-03

Last Version Date 2024-10-30

Entry Detail

PDB ID:

3HDE

Keywords:

HYDROLASE

Title:

Crystal structure of full-length endolysin R21 from phage 21

Biological Source:

Source Organism:

Enterobacteria phage P21 (Taxon ID: 10711)

Host Organism:

Escherichia coli

Method Details:

Experimental Method:

X-RAY DIFFRACTION

Resolution:

1.95 Å

R-Value Free:

0.24

R-Value Work:

0.21

Space Group:

P 21 21 21

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Macromolecular Entities

Protein Blast

Polymer Type:polypeptide(L)
Molecule:Lysozyme
Gene (Uniprot):R
Chain IDs:A, B, C, D
Chain Length:165
Number of Molecules:4
Biological Source:Enterobacteria phage P21

UniProt ID:P27359 Pfam ID:PF00959

Primary Citation

Regulation of a muralytic enzyme by dynamic membrane topology.

Sun, Q, Kuty, G.F, Arockiasamy, A, Xu, M, Young, R, Sacchettini, J.C.Show

Nat.Struct.Mol.Biol. 16 1192 1194 (2009)

PMID: 19881499 DOI: 10.1038/nsmb.1681

Abstact

R(21), the lysozyme of coliphage 21, has an N-terminal signal-anchor-release (SAR) domain that directs its secretion in a membrane-tethered, inactive form and then its release and activation in the periplasm. Both genetic and crystallographic studies show that the SAR domain, once extracted from the bilayer, refolds into the body of the enzyme and effects muralytic activation by repositioning one residue of the canonical lysozyme catalytic triad.

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