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6I86

Crocagin biosynthetic gene J

Summary for 6I86
Entry DOI10.2210/pdb6i86/pdb
DescriptorUncharacterized protein, GLYCEROL (3 entities in total)
Functional Keywordscgnj, biosynthetic protein, domain of unknown function, crocagin, ripps
Biological sourceChondromyces crocatus
Total number of polymer chains3
Total formula weight52769.91
Authors
Adam, S.,Koehnke, J. (deposition date: 2018-11-19, release date: 2019-03-13, Last modification date: 2024-05-15)
Primary citationAdam, S.,Klein, A.,Surup, F.,Koehnke, J.
The structure of CgnJ, a domain of unknown function protein from the crocagin gene cluster.
Acta Crystallogr.,Sect.F, 75:205-211, 2019
Cited by
PubMed Abstract: Natural products often contain interesting new chemical entities that are introduced into the structure of a compound by the enzymatic machinery of the producing organism. The recently described crocagins are novel polycyclic peptides which belong to the class of ribosomally synthesized and post-translationally modified peptide natural products. They have been shown to bind to the conserved prokaryotic carbon-storage regulator A in vitro. In efforts to understand crocagin biosynthesis, the putative biosynthetic genes were expressed and purified. Here, the first crystal structure of a protein from the crocagin-biosynthetic gene cluster, CgnJ, a domain of unknown function protein, is reported. Possible functions of this protein were explored by structural and sequence homology analyses. Even though the sequence homology to proteins in the Protein Data Bank is low, the protein shows significant structural homology to a protein with known function within the competency system of Bacillus subtilis, ComJ, leading to the hypothesis of a similar role of the protein within the producing organism.
PubMed: 30839296
DOI: 10.1107/S2053230X19000712
PDB entries with the same primary citation
Experimental method
X-RAY DIFFRACTION (2 Å)
Structure validation

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