ISDA

Deposition Date 2017-07-28

Release Date 2018-05-23

Last Version Date 2023-10-04

Entry Detail

PDB ID:

5WM5

Keywords:

LIGASE

Title:

Crystal Structure of CahJ in Complex with 5-Methylsalicyl Adenylate

Biological Source:

Source Organism:

Streptomyces gandocaensis (Taxon ID: 1649596)

Host Organism:

Escherichia coli

Method Details:

Experimental Method:

X-RAY DIFFRACTION

Resolution:

1.80 Å

R-Value Free:

0.19

R-Value Work:

0.15

R-Value Observed:

0.15

Space Group:

P 32 2 1

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Macromolecular Entities

Protein Blast

Polymer Type:polypeptide(L)
Molecule:Salicylate-AMP ligase
Gene (Uniprot):cahJ
Chain IDs:A
Chain Length:564
Number of Molecules:1
Biological Source:Streptomyces gandocaensis

UniProt ID:A0A140DJY3 Pfam ID:PF00501, PF13193

Primary Citation

A Defined and Flexible Pocket Explains Aryl Substrate Promiscuity of the Cahuitamycin Starter Unit-Activating Enzyme CahJ.

Tripathi, A, Park, S.R, Sikkema, A.P, Cho, H.J, Wu, J, Lee, B, Xi, C, Smith, J.L, Sherman, D.H.Show

Chembiochem 19 1595 1600 (2018)

PMID: 29742306 DOI: 10.1002/cbic.201800233

Abstact

Cahuitamycins are biofilm inhibitors assembled by a convergent nonribosomal peptide synthetase pathway. Previous genetic analysis indicated that a discrete enzyme, CahJ, serves as a gatekeeper for cahuitamycin structural diversification. Here, the CahJ protein was probed structurally and functionally to guide the formation of new analogues by mutasynthetic studies. This analysis enabled the in vivo production of a new cahuitamycin congener through targeted precursor incorporation.

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Primary Citation of related structures