5HM3 image
Entry Detail
PDB ID:
5HM3
Title:
2.25 Angstrom Resolution Crystal Structure of Long-chain-fatty-acid-AMP Ligase FadD32 from Mycobacterium tuberculosis in complex with Inhibitor 5'-O-[(11-phenoxyundecanoyl)sulfamoyl]adenosine
Biological Source:
PDB Version:
Deposition Date:
2016-01-15
Release Date:
2016-08-03
Method Details:
Experimental Method:
Resolution:
2.25 Å
R-Value Free:
0.23
R-Value Work:
0.18
R-Value Observed:
0.18
Space Group:
P 21 21 21
Macromolecular Entities
Polymer Type:polypeptide(L)
Description:Long-chain-fatty-acid--AMP ligase FadD32
Chain IDs:A
Chain Length:657
Number of Molecules:1
Biological Source:Mycobacterium tuberculosis (strain ATCC 25618 / H37Rv)
Modified Residue
Compound ID Chain ID Parent Comp ID Details 2D Image
CME A CYS modified residue
MSE A MET modified residue
Primary Citation
Structure of the Essential Mtb FadD32 Enzyme: A Promising Drug Target for Treating Tuberculosis.
Acs Infect Dis. 2 579 591 (2016)
PMID: 27547819 DOI: 10.1021/acsinfecdis.6b00082

Abstact

Mycolic acids are indispensible lipids of Mycobacterium tuberculosis (Mtb), the causative agent of tuberculosis (TB), and contribute to the distinctive architecture and impermeability of the mycobacterial cell envelope. FadD32 plays a pivotal role in mycolic acid biosynthesis by functionally linking fatty acid synthase (FAS) and polyketide synthase (PKS) biosynthetic pathways. FadD32, a fatty acyl-AMP ligase (FAAL), represents one of the best genetically and chemically validated new TB drug targets. We have determined the three-dimensional crystal structure of Mtb FadD32 in complex with a ligand specifically designed to stabilize the catalytically active adenylate-conformation, which provides a foundation for structure-based drug design efforts against this essential protein. The structure also captures the unique interactions of a FAAL-specific insertion sequence and provides insight into the specificity and mechanism of fatty acid transfer.

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Primary Citation of related structures