C3H4 — Phaseolus vulgaris

Summary

PvC3H4 (PHAVU_008G282900) on chromosome 8 of French bean encodes a CCCH-type zinc finger protein with RNA recognition motifs, annotated with pre-mRNA, U6 snRNA, poly-A, and mRNA binding, DNA binding transcription factor activity, and zinc binding. It is associated with alternative mRNA splicing via the spliceosome, polyamine metabolism, detoxification, cellular response to heat, transition from vegetative to reproductive phase, embryo development ending in seed dormancy, and defence responses to bacteria and fungi. The protein localises to the major catalytic step 2 spliceosome, Prp19 complex, stress granule, nucleolus, mitochondria, cytosol, and nucleus. Associations include starch grain synthesis, meristem tissue development, transpiration rate, flowering time, plant embryo development, disease resistance, plant immunity, boron tolerance, and growth repression. Studies of related genes in other species link the family to flowering time, cell death, and starch biosynthesis.