Protein
E3 ubiquitin-protein ligase MBR1
Organism
Arabidopsis thaliana
Function
E3 ubiquitin-protein ligase that functions as regulator of MED25 stability by targeting MED25 for degradation in a RING-H2-dependent way. Proteasome-dependent degradation of MED25 seems to activate its function as positive regulator of FLOWERING LOCUS T (FT) and is important to induce the expression of FT and consequently to promote flowering.
Similarity
Belongs to the RING-type zinc finger family.
Sequence
MNPMQGPRSIGGSSTEVNQVDGESIYCTETSLNTMLNPADTGFPNNSTPSGRPTYASSSSHAAQDHTWWRFGESSSIPGPSDQVNSIGIKTSHQLPQDGTHHFVGYGSEGRQTGLNGMMVDGGVHAGSHIRNVPSFLRGSSSNPMPQHVDMSMDMDSDNCNAQTSGVVIRHNSYGSSLGSSVQAAGESSSGPASPFGGWGSSCKRKALEGSPSHYFSGETPNRIVQTENSASHASLSQYGASSSLSLATPSQSSPNVTNHFGRTEQMFGSGGGRAVAASAFHSTRNTDTLSRAGRRLNPRQPQESVAFSVSHGGTSVRPTGSLQQNLPLNSPFVDPPDVRSSSITSGSNTGENQTNIVHLPALTRNIHQYAWDASFSSRASNPSGIGMPAERLGPQWETPRSNQEQPLFAPATDMRQPVHDLWNFARGSPGSSVDSLFVPRAGPSSAIHTPQPNPTWIPPQNAPPHNPSRTSELSPWSLFPSIESPSASHGGPLPLLPAGPSVSSNEVTMPSSSNSRSHRSRHRRSGLLLERQNELLHLRHIGRSLAADGNGRNQIISEIRQVLHAMRRGENLRVEDYMVFDPLIYQGMTDMHDRHREMRLDVDNMSYEELLALGERIGDVSTGLSEEVILKAMKQHKHTSSSPSSVELHQNIEPCCICQEEYVEGDNLGTLKCGHEFHKDCIKQWVMIKNLCPICKTEALKTP