Phylogenetic analysis of plant calreticulin homologs

Phylogenetic analysis of plant calreticulin homologs

[Display omitted] •The CRT gene duplication is a widespread in plant genomes.•The Arabidopsis genome, in contrast to other plant genomes, has only 3 CRT homologs.•The CRT isoforms reveal a functional specialization. Calreticulin (CRT) is an multifunctional resident endoplasmic reticulum (ER) luminal...

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Bibliographic Details
Published in:Molecular phylogenetics and evolution Vol. 134; pp. 99 - 110
Main Authors: Wasąg, Piotr, Grajkowski, Tomasz, Suwińska, Anna, Lenartowska, Marta, Lenartowski, Robert
Format: Journal Article
Language:English
Published: United States Elsevier Inc 01-05-2019
Subjects:
CRT1/2
CRT3
Dicotyledons
Duplication
Molecular phylogeny
Monocotyledons
Molecular phylogeny
Duplication
CRT
Monocotyledons
Dicotyledons
ER
CRT1/2
CRT3
UTR
Ca2
APG
NCBI
KEGG
cDNA
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Summary:[Display omitted] •The CRT gene duplication is a widespread in plant genomes.•The Arabidopsis genome, in contrast to other plant genomes, has only 3 CRT homologs.•The CRT isoforms reveal a functional specialization. Calreticulin (CRT) is an multifunctional resident endoplasmic reticulum (ER) luminal protein implicated in regulating a variety of cellular processes, including Ca2+ storage/mobilization and protein folding. These multiple functions may be carried out by different CRT genes and protein isoforms. The plant CRT family consist of three genes: CRT1 and CRT2 classified in the common subclass (CRT1/2), and CRT3. These genes are highly conserved during evolution and encode three different protein products (CRT1, 2 and 3). The aim of the current study was to conduct a comparative analysis and sequence-based classification of the plant CRT genes. We used nucleotide and amino acid sequences to phylogenetically cluster the genes and examine potential glycosylation patterns. Additionally, we analyzed phylogenetic relationships within the CRT subclasses. Finally, we analyzed intraspecific CRT duplication events among mono- and dicotyledon species. Our results confirm that each of the CRT genes exist in multiple copies in plant genomes, and that CRT gene duplication is a widespread process in plants.
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ISSN:1055-7903
1095-9513
DOI:10.1016/j.ympev.2019.01.014