Identification of a truncated ratp28-related protein expressed in kidney

Valerie Leel, Lucy J. Elrick, J. Solares, N. Ingram, Keith Alan Charlton, Andrew Justin Radcliffe Porter, Matthew Christopher Wright

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

An RT-PCR based strategy to clone the membrane-associated steroid binding protein ratp28 additionally amplified a novel sequence-related PCR product termed HC5. The HC5 PCR product was cloned and sequenced and showed 94%, nucleotide sequence similarity to ratp28. The HC5 cDNA sequence open reading frame encodes a predicted 75 amino acid (8.0 kDa) protein, and is therefore truncated compared to ratp28 (195 amino acids, 21.6kDa). In vitro transcription and translation of the HC5 cDNA resulted in the production of 2 proteins of approximately 8 and 6 kDa. Restriction digests from various tissues demonstrated that liver and heart expressed primarily ratp28 mRNA whereas kidney and blood contained both ratp28 and HC5 transcripts. Phage display was employed to generate an antibody fragment to a peptide sequence conserved in ratp28 and HC5. Western blotting identified a 10kDa protein in cytosolic fractions of rat kidney. The function of HC5 remains to be determined. (C) 2004 Elsevier Inc. All rights reserved.

Original languageEnglish
Pages (from-to)872-877
Number of pages6
JournalBiochemical and Biophysical Research Communications
Volume316
Issue number3
DOIs
Publication statusPublished - 9 Apr 2004

Keywords

  • ratp28
  • steroid
  • membrane
  • hpr6.6
  • non-genomic
  • glucocorticoid-binding sites
  • single-chain antibody
  • rat liver-microsomes
  • phage display
  • Escherichia coli
  • progesterone
  • receptor
  • microcystin
  • fragments
  • induction

Cite this

Identification of a truncated ratp28-related protein expressed in kidney. / Leel, Valerie; Elrick, Lucy J.; Solares, J.; Ingram, N.; Charlton, Keith Alan; Porter, Andrew Justin Radcliffe; Wright, Matthew Christopher.

In: Biochemical and Biophysical Research Communications, Vol. 316, No. 3, 09.04.2004, p. 872-877.

Research output: Contribution to journalArticle

Leel, Valerie ; Elrick, Lucy J. ; Solares, J. ; Ingram, N. ; Charlton, Keith Alan ; Porter, Andrew Justin Radcliffe ; Wright, Matthew Christopher. / Identification of a truncated ratp28-related protein expressed in kidney. In: Biochemical and Biophysical Research Communications. 2004 ; Vol. 316, No. 3. pp. 872-877.
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AU - Solares, J.

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AU - Charlton, Keith Alan

AU - Porter, Andrew Justin Radcliffe

AU - Wright, Matthew Christopher

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KW - rat liver-microsomes

KW - phage display

KW - Escherichia coli

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KW - receptor

KW - microcystin

KW - fragments

KW - induction

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