Evolutionary analyses of mitochondrial carrier family of dictyostelids

Ming Gong, Qiuming Zhu, Qi Tan

Research output: Contribution to journalArticle

Abstract

The transportation of solutes across the inner membrane of the mitochondria is catalyzed by a nuclear-coded family of transport proteins called mitochondrial carriers (MCs). Sequences from dictyostelid genome projects have facilitated analysis of the evolution of the dictyostelid mitochondrial carrier family (MCF). The average evolutionary distances between various regions in the MCF shows that the transmembrane region (TR) and conical pit region (CPR) are the only two conserved structural regions. A phylogenetic tree built using the concatenated orthologous TR and CPR sequences of 7 MCs showed that dictyostelids are similar to metazoans in this way. A close evolutionary relationship was observed between dictyostelids and metazoans in 4 MCs known to be related to ADP/ATP transport (MAA). This was further evidenced by the fact that dictyostelids have undergone gene expansion similar to that of metazoans during the evolution of MAA. Sequence logo analysis of CPR in MAA showed that dictyostelids have motifs similar to those of Metazoa. Combined with the conserved substrate binding site of 7 MCs in eukaryotes, it is postulated that dictyostelids are closely related to Metazoa with respect to the evolution of MAA.

Original languageEnglish (US)
Article number1465
JournalSpringerPlus
Volume5
Issue number1
DOIs
StatePublished - Dec 1 2016

Fingerprint

Animalia
nuclear family
transport proteins
solutes
eukaryotic cells
binding sites
mitochondria
sequence analysis
genome
phylogeny
genes

Keywords

  • ADP/ATP
  • Dictyostelids
  • Metabolic activity
  • Mitochondrial carriers
  • Solute transport

ASJC Scopus subject areas

  • General

Cite this

Evolutionary analyses of mitochondrial carrier family of dictyostelids. / Gong, Ming; Zhu, Qiuming; Tan, Qi.

In: SpringerPlus, Vol. 5, No. 1, 1465, 01.12.2016.

Research output: Contribution to journalArticle

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