TY - JOUR
T1 - Three orthologs in rice, Arabidopsis, and Populus encoding starch branching enzymes (SBEs) are different from other SBE gene families in plants
AU - Han, Yuepeng
AU - Sun, Feng Jie
AU - Rosales-Mendoza, Sergio
AU - Korban, Schuyler S.
N1 - Funding Information:
This work was supported by funds received from the USDA Cooperative State Research, Education and Extension Service — National Research Initiative — Plant Genome Program grant No. 2005-35300-15538. Also, funding was received from the University of Illinois Office of Research.
PY - 2007/10/15
Y1 - 2007/10/15
N2 - Starch branching enzymes (SBEs) play important roles in plant starch synthesis. Three orthologs encoding SBEs in rice, Arabidopsis thaliana, and Populus trichocarpa are described. Putative amino acid sequences of these three SBE genes show ∼ 30% identity to those of SBEI and SBEII from plants such as maize, barley, and wheat. More interestingly, they share ∼ 31% amino acid sequence identity with those of glycogen-branching enzymes from such animals as mouse, horse, and monkey. The three genes have similar genomic structures, but their structural features are quite different from those of genes of both SBEI and SBEII families in plants. Based on phylogenetic analysis and genomic structure comparison, it is proposed that the three SBE genes represent a new family of SBEs.
AB - Starch branching enzymes (SBEs) play important roles in plant starch synthesis. Three orthologs encoding SBEs in rice, Arabidopsis thaliana, and Populus trichocarpa are described. Putative amino acid sequences of these three SBE genes show ∼ 30% identity to those of SBEI and SBEII from plants such as maize, barley, and wheat. More interestingly, they share ∼ 31% amino acid sequence identity with those of glycogen-branching enzymes from such animals as mouse, horse, and monkey. The three genes have similar genomic structures, but their structural features are quite different from those of genes of both SBEI and SBEII families in plants. Based on phylogenetic analysis and genomic structure comparison, it is proposed that the three SBE genes represent a new family of SBEs.
KW - Genomic structure
KW - Phylogeny
KW - Starch
KW - Starch branching enzyme
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U2 - 10.1016/j.gene.2007.06.026
DO - 10.1016/j.gene.2007.06.026
M3 - Article
C2 - 17698298
AN - SCOPUS:34548485577
SN - 0378-1119
VL - 401
SP - 123
EP - 130
JO - Gene
JF - Gene
IS - 1-2
ER -