Molecular mechanism of light-driven sodium pumping

K Kovalev, R Astashkin, I Gushchin, P Orekhov… - Nature …, 2020 - nature.com
… Here we present crystal structure of the O-intermediate of the physiologically … light-driven
Na + pump KR2 was identified in Krokinobacter eikastus in 2013 2 . Its functional and structural

Structure of the lightdriven sodium pump KR 2 and its implications for optogenetics

I Gushchin, V Shevchenko, V Polovinkin… - The FEBS …, 2016 - Wiley Online Library
… of the crystal structures, potassium-translocating variants were designed [12, 13], representing
the first examples of outwardly directed light-driven potassium pumps. Such pumps are …

Femtosecond-to-millisecond structural changes in a light-driven sodium pump

P Skopintsev, D Ehrenberg, T Weinert, D James… - Nature, 2020 - nature.com
Light-driven sodium pumps actively transport small cations across cellular membranes 1 .
These pumps … The serial crystallographic structure of the KR2 resting state closely resembles …

The lightdriven sodium ion pump: A new player in rhodopsin research

HE Kato, K Inoue, H Kandori, O Nureki - BioEssays, 2016 - Wiley Online Library
structure-function relationships in these three light-driven pumps, mainly focusing on Na +
pumps. … Gushchin et al. solved crystal structures of KR2 32, 33, and now we can compare the …

Crystal structure of the N112A mutant of the light-driven sodium pump KR2

N Maliar, K Kovalev, C Baeken, T Balandin… - Crystals, 2020 - mdpi.com
… However, no structural data on the functional conversions of the light-driven sodium pumps
are available at the moment. Here we present the crystal structure of the N112A mutant of …

Light-driven sodium-pumping rhodopsin: a new concept of active transport

H Kandori, K Inoue, SP Tsunoda - Chemical reviews, 2018 - ACS Publications
… To better understand the molecular mechanism, structural information is very important,
and next X-ray crystallographic structures of a light-driven sodium pump will be introduced. …

Role of Asn112 in a light-driven sodium ion-pumping rhodopsin

R Abe-Yoshizumi, K Inoue, HE Kato, O Nureki… - Biochemistry, 2016 - ACS Publications
Crystal structures of KR2 at acidic and neutral pHs displayed a change in the orientation of
D116, suggesting that D116 interacts with the Schiff base in the dark, while protonated D116 …

Energetics and dynamics of a light-driven sodium-pumping rhodopsin

CM Suomivuori… - Proceedings of the …, 2017 - National Acad Sciences
… (7) also found that these residues form contacts with Asp116 in crystal structures obtained
under acidic conditions. The flipping of Asp116 occurs concertedly with the closing motion of …

Identification of intermediate conformations in the photocycle of the light-driven sodium-pumping rhodopsin KR2

M Tsujimura, H Ishikita - Journal of Biological Chemistry, 2021 - ASBMB
Na + pumping is unknown, in part because KR2 adopts both pentamer and monomer forms
in crystal structures and in part because these structures … for each crystal structure, using a …

K+-Dependent Photocycle and Photocurrent Reveal the Uptake of K+ in Light-Driven Sodium Pump

J Xu, Q Yang, B Ma, L Li, F Kong, L Xiao… - International Journal of …, 2023 - mdpi.com
… However, the crystal structure of mutant G263F, which can pump K + , has demonstrated a
dramatically reduced ion uptake cavity rather than an enlarged one as would be expected to …