Table 2.

Isotope Exchange Activity of JAR1 on JA and Related Substrates

SubstrateActivity (Percentage of ATP/Total)
None4.2 ± 0.6
Linolenate1.9 ± 0.6
HPOE2.6 ± 0.6
OPDA2.0 ± 0.7
OCPOA2.6 ± 0.6
JA42.3 ± 1.8
  • Data shown are means (±se) of five experiments expressed as a percentage of total radioactivity exchanged into ATP. HPOE, 13-hydroperoxy-linolenic acid; OCPOA, 3-oxo-cyclopentane octanoic acid.