5UJA

Cryo-EM structure of bovine multidrug resistance protein 1 (MRP1) bound to leukotriene C4

5UJA の概要

• エントリーDOI: 10.2210/pdb5uja/pdb
• 関連するPDBエントリー: 5UJ9
• EMDBエントリー: 8559 8560
• 分子名称: bovine multidrug resistance protein 1 (MRP1),Multidrug resistance-associated protein 1, (5~{S},6~{R},7~{E},9~{E},11~{Z},14~{Z})-6-[(2~{R})-2-[[(4~{S})-4-azanyl-5-oxidanyl-5-oxidanylidene-pentanoyl]amino]-3-( 2-hydroxy-2-oxoethylamino)-3-oxidanylidene-propyl]sulfanyl-5-oxidanyl-icosa-7,9,11,14-tetraenoic acid (2 entities in total)
• 機能のキーワード: abc transporter, multidrug resistance, leukotriene c4, ltc4, protein transport
• 由来する生物種: Bos taurus; 詳細
• タンパク質・核酸の鎖数: 1
• 化学式量合計: 160327.70

構造登録者

Johnson, Z.L.,Chen, J. (登録日: 2017-01-17, 公開日: 2017-02-22, 最終更新日: 2024-03-13)

主引用文献

Johnson, Z.L.,Chen, J.
Structural Basis of Substrate Recognition by the Multidrug Resistance Protein MRP1.
Cell, 168:1075-1085.e9, 2017

PubMed Abstract: The multidrug resistance protein MRP1 is an ATP-binding cassette (ABC) transporter that confers resistance to many anticancer drugs and plays a role in the disposition and efficacy of several opiates, antidepressants, statins, and antibiotics. In addition, MRP1 regulates redox homeostasis, inflammation, and hormone secretion. Using electron cryomicroscopy, we determined the molecular structures of bovine MRP1 in two conformations: an apo form at 3.5 Å without any added substrate and a complex form at 3.3 Å with one of its physiological substrates, leukotriene C. These structures show that by forming a single bipartite binding site, MRP1 can recognize a spectrum of substrates with different chemical structures. We also observed large conformational changes induced by leukotriene C, explaining how substrate binding primes the transporter for ATP hydrolysis. Structural comparison of MRP1 and P-glycoprotein advances our understanding of the common and unique properties of these two important molecules in multidrug resistance to chemotherapy.

PubMed: 28238471
DOI: 10.1016/j.cell.2017.01.041

実験手法

ELECTRON MICROSCOPY (3.34 Å)