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July 1, 1996Journal of Biological ChemistryOpen Access

Extracellular K+ and Intracellular pH Allosterically Regulate Renal Kir1.1 Channels

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Key result

ROMK1 (Kir1.1) channels are allosterically regulated by extracellular K+ and intracellular pH, with K+ regulation determined by the core region and pH coupling by the N terminus.

Population

Renal Kir1.1 (ROMK1) channels

Design

Preclinical

Authors

TDTadashi DoiKansai Medical UniversityBFBernd FaklerMax Planck SocietyJSJobst H. SchultzUniversity of Tübingen

Discussion

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Overview

May link renal K+ and pH homeostasis via ROMK1; extends channel biology but leaves open human translation.

Structured PICO

P
Population
Renal Kir1.1 (ROMK1) channels
I
Intervention
Extracellular K+ concentration and intracellular pH regulation, including structural modification (exchanging N terminus of ROMK1 with IRK1)
O
Outcome
Channel regulation and coupling to pHsurrogate

Extracellular K+ and intracellular pH allosterically regulate renal ROMK1 channels, providing a novel link between K+ homeostasis and pH control.

Cite This Study

Doi et al. (1996) studied this question. ROMK1 (Kir1.1) channels are allosterically regulated by extracellular K+ and intracellular pH, with K+ regulation determined by the core region and pH coupling by the N terminus.

synapsesocial.com/papers/6a08d68b720b08f65a5b6cd4https://doi.org/10.1074/jbc.271.29.17261
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