Dheeraj Mittal, Yasuaki Enoki, Dhruv Lavania, Amanjot Singh, Hiroshi Sakurai and Anil Grover
In 1 kb promoter region, 953 rice genes contain perfect-, 695 genes gap- and 1584 genes step-type HSE sequences. OsHsfA2c, OsHsfA9 and OsHsfB4b proteins form homotrimers and differentially recognize various model HSEs as a function of varying reaction temperatures. OsHsfB4b shows heteromeric interactions with OsHsfA2a, OsHsfA7, OsHsfB4c and OsHsf26. OsHsfA2c, OsHsfA2d, OsHsfA9, OsHsfC1a and OsHsfC1b show transactivation activity.