ArticleProceedings of the National Academy of Sciences of the United States of America1995
Chimeric Na+/H+ exchangers: an epithelial membrane-bound N-terminal domain requires an epithelial cytoplasmic C-terminal domain for regulation by protein kinases.
Article in Proceedings of the National Academy of Sciences of the United States of America, 1995. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
9 citing papers in PubMed, 31 citations in OpenAlex.
- Nonsynonymous single nucleotide polymorphisms of NHE3 differentially decrease NHE3 transporter activity.American journal of physiology. Cell physiology · 2015Article
- AKT and GSK-3 are necessary for direct ezrin binding to NHE3 as part of a C-terminal stimulatory complex: role of a novel Ser-rich NHE3 C-terminal motif in NHE3 activity and trafficking.The Journal of biological chemistry · 2014Article
- Mechanisms of the regulation of the intestinal Na+/H+ exchanger NHE3.Journal of biomedicine & biotechnology · 2010Review
- Responses of sodium-hydrogen exchange to nitric oxide in porcine cultured nonpigmented ciliary epithelium.Investigative ophthalmology & visual science · 2009Article
- Luminal Na(+)/H (+) exchange in the proximal tubule.Pflugers Archiv : European journal of physiology · 2009Review
- IRBIT, inositol 1,4,5-triphosphate (IP3) receptor-binding protein released with IP3, binds Na+/H+ exchanger NHE3 and activates NHE3 activity in response to calcium.The Journal of biological chemistry · 2008Article
- PKC stimulated by glucagon decreases UT-A1 urea transporter expression in rat IMCD.Pflugers Archiv : European journal of physiology · 2008Article
- Different ionic conditions prompt NHE2 and NHE3 translocation to the plasma membrane.Biochimica et biophysica acta · 2007Article
- Concerted roles of SGK1 and the Na+/H+ exchanger regulatory factor 2 (NHERF2) in regulation of NHE3.Cellular physiology and biochemistry : international journal of experimental cellular physiology, biochemistry, and pharmacology · 2003Review
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
3 authors at 2 institutions in 1 country.
Funding
Abstract
All cloned members of the mammalian Na+/H+ exchanger gene family encode proteins that consist of two functionally distinct domains: a membrane-bound N terminus and a cytoplasmic C terminus, which are required for ion transport and regulation of transport, respectively. Despite their similarity in structure, three members of this family, designated NHE1, NHE2, and NHE3, exhibit different kinetic mechanisms in response to growth factors and protein kinases. For instance, growth factors stimulate NHE1 by a change in the affinity constant for intracellular H+, K'(Hi+), and regulate NHE2 and NHE3 by a change in Vmax. We have constructed chimeric Na+/H+ exchangers by exchanging the N and C termini among three cloned rabbit Na+/H+ exchangers (NHE1 to NHE3) to determine which domain is responsible for the above Vmax-vs.-K'(H(i)+) effect of the Na+/H+ isoforms. All of the chimeras had functional exchange activity and basal kinetic properties similar to those of wild-type exchangers. Studies with serum showed that the N terminus is responsible for the Vmax-vs.-K'(H(i)+) stimulation of the Na+/H+ exchanger isoforms. Moreover, phorbol 12-myristate 13-acetate and fibroblast growth factor altered Na+/H+ exchange only in chimeras that had an epithelial N-terminal domain matched with an epithelial C-terminal domain. Therefore, the protein kinase-induced regulation of Na+/H+ exchangers is mediated through a specific interaction between the N- and C-termini, whcih is restricted so that epithelial N- and epithelial N-and C-terminal portions of the exchangers are required for regulation.
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.