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Phylogenetic analysis of the Kinesin superfamily from physcomitrella.

Shen Z, Collatos AR, Bibeau JP, Furt F, Vidali L - Front Plant Sci (2012)

Bottom Line: We found a remarkable conservation of families and subfamily classes with Arabidopsis, which is important for future comparative analysis of function.Some of the families, such as kinesins 14s are composed of fewer members in moss, while other families, such as the kinesin 12s are greatly expanded.To improve the comparison between species, and to simplify communication between research groups, we propose a classification of subfamilies based on our phylogenetic analysis.

View Article: PubMed Central - PubMed

Affiliation: Department of Biology and Biotechnology, Worcester Polytechnic Institute Worcester, MA, USA.

ABSTRACT
Kinesins are an ancient superfamily of microtubule dependent motors. They participate in an extensive and diverse list of essential cellular functions, including mitosis, cytokinesis, cell polarization, cell elongation, flagellar development, and intracellular transport. Based on phylogenetic relationships, the kinesin superfamily has been subdivided into 14 families, which are represented in most eukaryotic phyla. The functions of these families are sometimes conserved between species, but important variations in function across species have been observed. Plants possess most kinesin families including a few plant specific families. With the availability of an ever increasing number of genome sequences from plants, it is important to document the complete complement of kinesins present in a given organism. This will help develop a molecular framework to explore the function of each family using genetics, biochemistry, and cell biology. The moss Physcomitrella patens has emerged as a powerful model organism to study gene function in plants, which makes it a key candidate to explore complex gene families, such as the kinesin superfamily. Here we report a detailed phylogenetic characterization of the 71 kinesins of the kinesin superfamily in Physcomitrella. We found a remarkable conservation of families and subfamily classes with Arabidopsis, which is important for future comparative analysis of function. Some of the families, such as kinesins 14s are composed of fewer members in moss, while other families, such as the kinesin 12s are greatly expanded. To improve the comparison between species, and to simplify communication between research groups, we propose a classification of subfamilies based on our phylogenetic analysis.

No MeSH data available.


Related in: MedlinePlus

Sub-region of the phylogenetic tree based on their motor domain showing kinesin 14s. The amino acid sequences of the motor domain were aligned using ClustalW and the phylogenetic tree was constructed using the maximum likelihood method (PhyML) and a 1000 bootstrap resampling value. Numbers on the nodes show the statistical support of values above 50%. The scale shows the estimated branch length corresponding to the number of substitutions per site. The Physcomitrella numbers correspond to the Phypa number uniquely associated with each gene model (version 1.6) at cosmoss.org.
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Figure 12: Sub-region of the phylogenetic tree based on their motor domain showing kinesin 14s. The amino acid sequences of the motor domain were aligned using ClustalW and the phylogenetic tree was constructed using the maximum likelihood method (PhyML) and a 1000 bootstrap resampling value. Numbers on the nodes show the statistical support of values above 50%. The scale shows the estimated branch length corresponding to the number of substitutions per site. The Physcomitrella numbers correspond to the Phypa number uniquely associated with each gene model (version 1.6) at cosmoss.org.

Mentions: Members of this family have been associated with functions in re-arrangement of the MT arrays at various stages of the cell cycle as well as in organelle transport (Miki et al., 2005; Richardson et al., 2006; Zhu and Dixit, 2011a). Kinesin 14s were initially divided in two groups, kinesin 14A and kinesin 14B, according to their structure and function (Miki et al., 2005). However, this family is vastly expanded in plants with 21 and 15 members in Arabidopsis and Physcomitrella, respectively, compared to 4 in humans (Richardson et al., 2006). In addition, the fact that plant kinesins 14 display some specific structural motifs prompted us to propose a new classification for the plant kinesin 14s, divided in six different classes (Figure 12).


Phylogenetic analysis of the Kinesin superfamily from physcomitrella.

Shen Z, Collatos AR, Bibeau JP, Furt F, Vidali L - Front Plant Sci (2012)

Sub-region of the phylogenetic tree based on their motor domain showing kinesin 14s. The amino acid sequences of the motor domain were aligned using ClustalW and the phylogenetic tree was constructed using the maximum likelihood method (PhyML) and a 1000 bootstrap resampling value. Numbers on the nodes show the statistical support of values above 50%. The scale shows the estimated branch length corresponding to the number of substitutions per site. The Physcomitrella numbers correspond to the Phypa number uniquely associated with each gene model (version 1.6) at cosmoss.org.
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC3472504&req=5

Figure 12: Sub-region of the phylogenetic tree based on their motor domain showing kinesin 14s. The amino acid sequences of the motor domain were aligned using ClustalW and the phylogenetic tree was constructed using the maximum likelihood method (PhyML) and a 1000 bootstrap resampling value. Numbers on the nodes show the statistical support of values above 50%. The scale shows the estimated branch length corresponding to the number of substitutions per site. The Physcomitrella numbers correspond to the Phypa number uniquely associated with each gene model (version 1.6) at cosmoss.org.
Mentions: Members of this family have been associated with functions in re-arrangement of the MT arrays at various stages of the cell cycle as well as in organelle transport (Miki et al., 2005; Richardson et al., 2006; Zhu and Dixit, 2011a). Kinesin 14s were initially divided in two groups, kinesin 14A and kinesin 14B, according to their structure and function (Miki et al., 2005). However, this family is vastly expanded in plants with 21 and 15 members in Arabidopsis and Physcomitrella, respectively, compared to 4 in humans (Richardson et al., 2006). In addition, the fact that plant kinesins 14 display some specific structural motifs prompted us to propose a new classification for the plant kinesin 14s, divided in six different classes (Figure 12).

Bottom Line: We found a remarkable conservation of families and subfamily classes with Arabidopsis, which is important for future comparative analysis of function.Some of the families, such as kinesins 14s are composed of fewer members in moss, while other families, such as the kinesin 12s are greatly expanded.To improve the comparison between species, and to simplify communication between research groups, we propose a classification of subfamilies based on our phylogenetic analysis.

View Article: PubMed Central - PubMed

Affiliation: Department of Biology and Biotechnology, Worcester Polytechnic Institute Worcester, MA, USA.

ABSTRACT
Kinesins are an ancient superfamily of microtubule dependent motors. They participate in an extensive and diverse list of essential cellular functions, including mitosis, cytokinesis, cell polarization, cell elongation, flagellar development, and intracellular transport. Based on phylogenetic relationships, the kinesin superfamily has been subdivided into 14 families, which are represented in most eukaryotic phyla. The functions of these families are sometimes conserved between species, but important variations in function across species have been observed. Plants possess most kinesin families including a few plant specific families. With the availability of an ever increasing number of genome sequences from plants, it is important to document the complete complement of kinesins present in a given organism. This will help develop a molecular framework to explore the function of each family using genetics, biochemistry, and cell biology. The moss Physcomitrella patens has emerged as a powerful model organism to study gene function in plants, which makes it a key candidate to explore complex gene families, such as the kinesin superfamily. Here we report a detailed phylogenetic characterization of the 71 kinesins of the kinesin superfamily in Physcomitrella. We found a remarkable conservation of families and subfamily classes with Arabidopsis, which is important for future comparative analysis of function. Some of the families, such as kinesins 14s are composed of fewer members in moss, while other families, such as the kinesin 12s are greatly expanded. To improve the comparison between species, and to simplify communication between research groups, we propose a classification of subfamilies based on our phylogenetic analysis.

No MeSH data available.


Related in: MedlinePlus