ISDA: 6ULX

Deposition Date 2019-10-08

Release Date 2020-02-19

Last Version Date 2024-03-13

Entry Detail

PDB ID:

6ULX

Keywords:

BIOSYNTHETIC PROTEIN

Title:

Adenylation domain of a keto acid-selecting NRPS module bound to keto acyl adenylate space group P43212

Biological Source:

Source Organism:

Bacillus stratosphericus LAMA 585 (Taxon ID: 1236481)

Host Organism:

Escherichia coli BL21(DE3)

Method Details:

Experimental Method:

X-RAY DIFFRACTION

Resolution:

2.31 Å

R-Value Free:

0.24

R-Value Work:

0.22

R-Value Observed:

0.22

Space Group:

P 43 21 2

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Macromolecular Entities

Polymer Type:polypeptide(L)
Molecule:Amino acid adenylation domain-containing protein
Chain IDs:A
Chain Length:576
Number of Molecules:1
Biological Source:Bacillus stratosphericus LAMA 585

Ligand Molecules

QA7

SO4

Primary Citation

Structural basis of keto acid utilization in nonribosomal depsipeptide synthesis.

Alonzo, D.A, Chiche-Lapierre, C, Tarry, M.J, Wang, J, Schmeing, T.M, Afonine, P.V, Grosse-Kunstleve, R.W, Echols, N, Headd, J.J, Moriarty, N.W, Mustyakimov, M, Terwilliger, T.C, Urzhumtsev, A, Zwart, P.H, Adams, P.D, Adams, P.D, Afonine, P.V, Bunkoczi, G, Chen, V.B, Davis, I.W, Echols, N, Headd, J.J, Hung, L.W, Kapral, G.J, Grosse-Kunstleve, R.W, McCoy, A.J, Moriarty, N.W, Oeffner, R, Read, R.J, Richardson, D.C, Richardson, J.S, Terwilliger, T.C, Zwart, P.H, McCoy, A.J, Grosse-Kunstleve, R.W, Adams, P.D, Winn, M.D, Storoni, L.C, Read, R.J.Show

Nat.Chem.Biol. 16 493 496 (2020)

PMID: 32066969 DOI: 10.1038/s41589-020-0481-5

Abstact

Nonribosomal depsipeptides are natural products composed of amino and hydroxy acid residues. The hydroxy acid residues often derive from α-keto acids, reduced by ketoreductase domains in the depsipeptide synthetases. Biochemistry and structures reveal the mechanism of discrimination for α-keto acids and a remarkable architecture: flanking intact adenylation and ketoreductase domains are sequences separated by >1,100 residues that form a split 'pseudoAsub' domain, structurally important for the depsipeptide module's synthetic cycle.

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Primary Citation of related structures

Abstact

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