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Appears in Collections:Aquaculture Journal Articles
Peer Review Status: Refereed
Title: The evolution of apolipoprotein B and its mRNA editing complex. Does the lack of editing contribute to hypertriglyceridemia? (Forthcoming/Available Online)
Authors: Damsteegt, Erin
Davie, Andrew
Lokman, P Mark
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Keywords: Apolipoprotein B
mRNA editing
Issue Date: 12-Oct-2017
Citation: Damsteegt E, Davie A & Lokman PM (2017) The evolution of apolipoprotein B and its mRNA editing complex. Does the lack of editing contribute to hypertriglyceridemia? (Forthcoming/Available Online), Gene.
Abstract: The evolution of apolipoprotein B (Apob) has been intensely researched due to its importance during lipid transport. Mammalian full-length apob100 can be post-transcriptionally edited by the enzyme apolipoprotein B mRNA editing enzyme, catalytic polypeptide-like complex-one (Apobec1) resulting in a truncated Apob, known as Apob48. Whilst both full-length and truncated forms of Apob are important for normal lipid homeostasis in mammals, there is no evidence for the presence of apob mRNA editing prior to the divergence of the mammals, yet, non-mammalian vertebrates appear to function normally with only Apob100. To date, the majority of the research carried out in non-mammalian vertebrates has focused on chickens with only a very limited number examining apob mRNA editing in fish. This study focused on the molecular evolution of Apobec1 and Apob in order to ascertain if apob mRNA editing occurs in eels, a basal teleost which represents an evolutionarily important animal group. No evidence for the presence of Apobec1 or the ability for eel apob to be edited was found. However, an important link between mutant mice and the evident hypertriglyceridemia in the plasma of non-mammalian vertebrates was made. This study has provided imperative evidence to help bridge the evolutionary gap between fish and mammals and provides further support for the lack of apob mRNA editing in non-mammalian vertebrates.
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