Protein Name Alternative oxidase family protein
Organism Arabidopsis thaliana
Gene ID 828321
Gene Symbol


UniProt Q56X52 (AOX4_ARATH)
Relationships Total Number of functionally related compound(s) : 24
Total Number of Articles : 16

Alternative oxidase family protein

Gene Summary

Similar to mitochondrial alternative oxidase. im mutants have a variegated phenotype and fail to differentiate chloroplasts in the majority of their cells under high light intensity continuous illumination. The white tissues of immutans accumulate phytoene, a non-colored C40 carotenoid intermediate. This suggests that immutans controls, either directly or indirectly, the activity of phytoene desaturase (PDS), the enzyme that converts phytoene to zeta-carotene in higher plants. However, im is not the structural gene for PDS. It is located in the lumenar face of the thylakoid membrane. IM is expressed ubiquitously in plant tissues.

  • Alternative oxidase family protein
  • AT4G22260
  • IM1
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