Expression of human apolipoprotein B100 in transgenic mice: Editing of human apolipoprotein B100 mRNA

Giulia Chiesa, David F. Johnson, Zemin Yao, Thomas L. Innerarity, Robert W. Mahley, Stephen G. Young, Robert E Hammer, Helen H Hobbs

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Abstract

Apolipoprotein B (apoB) is a large glycoprotein that circulates in plasma as a major constituent of numerous lipoproteins. ApoB exists in two forms: apoB48 and apoB100. ApoB48 is identical in sequence to the N-terminal region of apoB100 and is generated by sequence-specific mRNA editing of the apoB100 transcript. Here, we describe the development of a line of mice expressing a human apoB transgene driven by promoter/enhancer sequences from the transthyretin gene. In these mice, immunodetectable human apoB100 is synthesized by the liver, kidney, and brain. Human apoB100 is found in low concentration (∼0.1 mg/dl) in the plasma of the transgenic mice and circulates in the low density lipoprotein fraction. The hepatic human apoB100 transcripts undergo mRNA editing at only slightly lower efficiency than the endogenous mouse apoB100 message. Therefore, there is no absolute species specificity to the apoB100 mRNA editing process.

Original languageEnglish (US)
Pages (from-to)23747-23750
Number of pages4
JournalJournal of Biological Chemistry
Volume268
Issue number32
StatePublished - Nov 15 1993

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Apolipoproteins
Apolipoproteins B
Apolipoprotein B-48
Transgenic Mice
Messenger RNA
Plasmas
Prealbumin
LDL Lipoproteins
Species Specificity
Liver
Lipoproteins
Brain
Glycoproteins
Genes
Transgenes
Kidney

ASJC Scopus subject areas

  • Biochemistry

Cite this

Chiesa, G., Johnson, D. F., Yao, Z., Innerarity, T. L., Mahley, R. W., Young, S. G., ... Hobbs, H. H. (1993). Expression of human apolipoprotein B100 in transgenic mice: Editing of human apolipoprotein B100 mRNA. Journal of Biological Chemistry, 268(32), 23747-23750.

Expression of human apolipoprotein B100 in transgenic mice : Editing of human apolipoprotein B100 mRNA. / Chiesa, Giulia; Johnson, David F.; Yao, Zemin; Innerarity, Thomas L.; Mahley, Robert W.; Young, Stephen G.; Hammer, Robert E; Hobbs, Helen H.

In: Journal of Biological Chemistry, Vol. 268, No. 32, 15.11.1993, p. 23747-23750.

Research output: Contribution to journalArticle

Chiesa, G, Johnson, DF, Yao, Z, Innerarity, TL, Mahley, RW, Young, SG, Hammer, RE & Hobbs, HH 1993, 'Expression of human apolipoprotein B100 in transgenic mice: Editing of human apolipoprotein B100 mRNA', Journal of Biological Chemistry, vol. 268, no. 32, pp. 23747-23750.
Chiesa G, Johnson DF, Yao Z, Innerarity TL, Mahley RW, Young SG et al. Expression of human apolipoprotein B100 in transgenic mice: Editing of human apolipoprotein B100 mRNA. Journal of Biological Chemistry. 1993 Nov 15;268(32):23747-23750.
Chiesa, Giulia ; Johnson, David F. ; Yao, Zemin ; Innerarity, Thomas L. ; Mahley, Robert W. ; Young, Stephen G. ; Hammer, Robert E ; Hobbs, Helen H. / Expression of human apolipoprotein B100 in transgenic mice : Editing of human apolipoprotein B100 mRNA. In: Journal of Biological Chemistry. 1993 ; Vol. 268, No. 32. pp. 23747-23750.
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