Evidence map›Paper›PMID 23324176›Full record

ArticleAmerican journal of physiology. Renal physiology2013

Expression of the ammonia transporter family member, Rh B Glycoprotein, in the human kidney.

Ki-Hwan Han, Hyun-Wook Lee, Mary E Handlogten, Florence Whitehill, Gunars Osis, Byron P Croker, William L Clapp, Jill W Verlander, I David Weiner

Open access · greenAbstract read
In one paragraph

Article in American journal of physiology. Renal physiology, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed
1.9field-weighted citation impact, top 14% of its field
1 · What the graph read from it

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.

2 · The registry

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.

3 · Its place in the literature

Who cites it

21 citing papers in PubMed, 32 citations in OpenAlex.

  1. Article
  2. Rhbg interaction with CA-IV and its effects on NHAmerican journal of physiology. Cell physiology · 2025
    Article
  3. Lack of a role of NHE4 in renal ammonia metabolism.American journal of physiology. Renal physiology · 2025
    Article
  4. Article
  5. Role of the renal androgen receptor in sex differences in ammonia metabolism.American journal of physiology. Renal physiology · 2021
    Article
  6. Testosterone modulates renal ammonia metabolism.American journal of physiology. Renal physiology · 2020
    Article
  7. NBCe1-A is required for the renal ammonia and KAmerican journal of physiology. Renal physiology · 2020
    Article
  8. Article
  9. Review
  10. Article
  11. Differences in renal ammonia metabolism in male and female kidney.American journal of physiology. Renal physiology · 2018
    Article
  12. Renal Tubular Acidosis: HAdvances in chronic kidney disease · 2018
    Review
  13. Review
  14. Review
  15. Article
  16. Glycosylation of solute carriers: mechanisms and functional consequences.Pflugers Archiv : European journal of physiology · 2016
    Review
  17. Mechanisms of ammonia and ammonium transport by rhesus-associated glycoproteins.American journal of physiology. Cell physiology · 2015
    Article
  18. Effect of dietary protein restriction on renal ammonia metabolism.American journal of physiology. Renal physiology · 2015
    Article
  19. Review
  20. Ammonia transport in the kidney by Rhesus glycoproteins.American journal of physiology. Renal physiology · 2014
    Review
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

9 authors at 4 institutions in 2 countries.

Ki-Hwan HanDepartment of Anatomy, Ewha Womans University, Seoul, Korea.
Hyun-Wook Lee
Mary E Handlogten
Florence Whitehill
Gunars Osis
Byron P Croker
William L Clapp
Jill W Verlander
I David Weiner
Florida College · USNorth Florida/South Georgia Veterans Health System · USUniversity of Florida · USEwha Womans University · KR

Funding

H/HCO3 transport in the collecting ductR01DK045788 · NIDDK · UNIVERSITY OF FLORIDA · PI WEINER, I. DAVID · 2000 to 2017
$4.4M
H/HCO3 transport in the collecting ductR56DK045788 · NIDDK · UNIVERSITY OF FLORIDA · PI WEINER, I. DAVID · 2008 to 2008
$205k
Molecular mechanisms of ammonia metabolismI01BX000818 · VA · VETERANS HEALTH ADMINISTRATION · PI WEINER, I. DAVID · 2011 to 2014
–
H+/HCO3- TRANSPORT BY THE COLLECTING DUCTR29DK045788 · NIDDK · UNIVERSITY OF FLORIDA · PI WEINER, I. DAVID · 1993 to 1997
–
BLRD VA I01 BX000818NIDDK NIH HHS DK-045788NIDDK NIH HHS R01 DK045788NIDDK NIH HHS R56 DK045788
6 · The paper itself

Abstract

The ammonia transporter family member, Rh B Glycoprotein (RhBG/Rhbg), is essential for ammonia transport by the rodent kidney, but in the human kidney mRNA but not protein expression has been reported. Because ammonia transport is fundamental for acid-base homeostasis, the current study addressed RhBG expression in the human kidney. Two distinct RhBG mRNA sequences have been reported, with different numbers of consecutive cytosines at nt1265 and thus encoding different carboxy-tails. Sequencing the region of difference in both human kidney and liver mRNA showed eight sequential cytosines, not seven as in some reports. Knowing the correct mRNA sequence for RhBG, we then assessed RhBG protein expression using antibodies against the correct amino acid sequence. Immunoblot analysis demonstrated RhBG protein expression in human kidney and immunohistochemistry identified basolateral RhBG in connecting segment (CNT) and the cortical and outer medullary collecting ducts. Colocalization of RhBG with multiple cell-specific markers demonstrated that that CNT cells and collecting duct type A intercalated cells express high levels of RhBG, and type B intercalated cells and principal cells do not express detectable RhBG. Thus, these studies identify the correct mRNA and thus protein sequence for human RhBG and show that the human kidney expresses basolateral RhBG protein in CNT, type A intercalated cells, and non-A, non-B cells. We conclude that RhBG can mediate an important role in human renal ammonia transport.

Indexed as

Amino Acid SequenceAmmoniaAnimalsBase SequenceGlycoproteinsHumansKidneyKidney Tubules, CollectingLiverMembrane Transport ProteinsMiceMice, KnockoutMolecular Sequence DataRNA, MessengerSequence AlignmentAmmoniaGlycoproteinsMembrane Transport ProteinsRHBG protein, humanRhBG protein, mouseRNA, Messenger

Identifiers

PMID23324176
PMCPMC3625849
OpenAlexW2143599530

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

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.