RBCS — Oryza sativa Japonica

Summary

Os12g0291400, also known as RBCS, RbcS5 or RBCS3B, encodes a protein containing a RuBisCO small subunit domain in rice. The gene product is annotated with RuBisCO activity, RuBisCO assembly, regulation of photosynthesis, photorespiration, and starch and sucrose metabolism. It is associated with leaf net photosynthesis rate, CO2 assimilation, quantum yield, grain filling period, grain number, and starch content. The protein localises to the thylakoid lumen, chloroplast thylakoid membrane, and chloroplast envelope. The gene is also linked to responses to thermal, light, boron, zinc, and herbicide stress, as well as meristem growth, stomatal closure, and male and female gamete generation. Studies of related genes in other species link the family to photosynthetic capacity, photoinhibition, and temperature stress tolerance.