MP — Arabidopsis thaliana

Summary

AT1G19850, designated MP (MONOPTEROS) and also known as ARF5 and IAA24, encodes a protein on Arabidopsis thaliana chromosome 1. The product contains B3 DNA-binding, AUX/IAA, and PB1-like domains and exhibits DNA binding, transcription cis-regulatory region binding, identical protein binding, and water channel activity. MP is associated with embryonic meristem initiation, vascular tissue identity specification and development, female and male gametophyte development, periclinal cell division, lateral growth, sieve cell differentiation, tracheary element differentiation, inflorescence phyllotactic patterning, flower formation, stem cell differentiation and renewal, ground tissue patterning, transdifferentiation, cell polarization, and translation reinitiation and termination. The protein localises to the cytoplasm and nucleus. Associations with numerous traits include plant fresh weight, seedling vigor, root branching, adventitious root number, branch angle, inflorescence height, pedicel length, leaf color and curling, phyllotaxy, phototropism, plant male sterility, sulfur content, brassinosteroid content, and relative growth rate.