4rxd

From Proteopedia

T. Brucei Farnesyl Diphosphate Synthase Complexed with Risedronate

Structural highlights

4rxd is a 3 chain structure with sequence from Trypanosoma brucei. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Method:	X-ray diffraction, Resolution 2Å
Ligands:	,
Resources:	FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

Q86C09_9TRYP

Publication Abstract from PubMed

Farnesyl diphosphate synthase (FPPS) is an important drug target for bone resorption, cancer, and some infectious diseases. Here, we report five new structures including two having unique bound ligand geometries. The diamidine inhibitor 7 binds to human FPPS close to the homoallylic (S2) and allosteric (S3) sites and extends into a new site, here called S4. With the bisphosphonate inhibitor 8, two molecules bind to Trypanosoma brucei FPPS, one molecule in the allylic site (S1) and the other close to S2, the first observation of two bisphosphonate molecules bound to FPPS. We also report the structures of apo-FPPS from T. brucei, together with two more bisphosphonate-bound structures (2,9), for purposes of comparison. The diamidine structure is of particular interest because 7 could represent a new lead for lipophilic FPPS inhibitors, while 8 has low micromolar activity against T. brucei, the causative agent of human African trypanosomiasis.

Farnesyl diphosphate synthase inhibitors with unique ligand-binding geometries.,Liu YL, Cao R, Wang Y, Oldfield E ACS Med Chem Lett. 2015 Jan 29;6(3):349-54. doi: 10.1021/ml500528x. eCollection, 2015 Mar 12. PMID:25815158^[1]

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

References

↑ Liu YL, Cao R, Wang Y, Oldfield E. Farnesyl diphosphate synthase inhibitors with unique ligand-binding geometries. ACS Med Chem Lett. 2015 Jan 29;6(3):349-54. doi: 10.1021/ml500528x. eCollection, 2015 Mar 12. PMID:25815158 doi:http://dx.doi.org/10.1021/ml500528x