Purification and reconstitution of polyspecific H+/organic cation antiporter human MATE1.
Purification and reconstitution of polyspecific H+/organic cation antiporter human MATE1.
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多特异性 H /有机阳离子逆向转运蛋白人 MATE1 的纯化和重建。
DOI:
10.1016/j.bbamem.2018.07.005
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发表时间:
2018
期刊:
影响因子:
--
通讯作者:
Nabekura T. & MoriyamaY
中科院分区:
文献类型:
--
作者:
Kawasaki T.;Matsumoto T.;Iwai Y.;Kawakami M.;Juge N.;Omote H.;Nabekura T. & MoriyamaY
Human MATE1 (multidrugandtoxinextrusion 1, hMATE1) is a H+/organic cation (OC) exchanger responsible for the final step of toxic organic cation excretion in the kidney and liver. To investigate the mechanism of transport, we have established anin vitroassay procedure that includes its expression in insect cells, solubilization with octyl glucoside, purification, and reconstitution into liposomes. The resultant proteoliposomes containing hMATE1 as the sole protein component took up radiolabeled tetraethylammonium (TEA) in a ∆pH-dependent and electroneutral fashion. Furthermore, lipid-detergent micelle containing hMATE1 showed ∆pH-dependent TEA binding similar to transport. Mutated hMATE1 with replacement E273Q completely lacked these TEA binding and transport. In the case of divalent substrates, transport was electrogenic. These observations indicate that the stoichiometry of OC/H+exchange is independent of substrate charge. Purification and reconstitution of hMATE1 is considered to be suitable for understanding the detailed molecular mechanisms of hMATE1. The results suggest that Glu273 of hMATE1 plays essential roles in substrate binding and transport.
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影响因子:
5.8
作者:
Tanihara, Yuko;Masuda, Satohiro;Inui, Ken-ichi
通讯作者:
Inui, Ken-ichi
DOI:
10.1016/0005-2736(92)90334-i
发表时间:
1992-06-11
期刊:
BIOCHIMICA ET BIOPHYSICA ACTA
影响因子:
--
作者:
SAEKI, T;SHIMABUKU, AM;KOMANO, T
通讯作者:
KOMANO, T
DOI:
10.1152/ajprenal.00075.2011
发表时间:
2011-09-01
影响因子:
4.2
作者:
Dangprapai, Yodying;Wright, Stephen H.
通讯作者:
Wright, Stephen H.
影响因子:
5.5
作者:
Hiasa, Miki;Matsumoto, Takuya;Moriyama, Yoshinori
通讯作者:
Moriyama, Yoshinori
影响因子:
5.5
作者:
Matsumoto, Takuya;Kanamoto, Takuji;Moriyama, Yoshinori
通讯作者:
Moriyama, Yoshinori