Protein
Serine/threonine protein phosphatase 2A 57 kDa regulatory subunit B' alpha isoform
Organism
Arabidopsis thaliana
Function
The B regulatory subunit may modulate substrate selectivity and catalytic activity, and also may direct the localization of the catalytic enzyme to a particular subcellular compartment (By similarity). Required for the formation of the PP2A holoenzyme that positively regulates brassinosteroid signaling by dephosphorylating and activating BZR1 (PubMed:21258370).
Similarity
Belongs to the phosphatase 2A regulatory subunit B56 family.
Sequence
MFKKIMKGANRKASKAEANDSSMYGFDPPGRSGPGSNMIVNHASRGSLVPSSPNSMAAATTQPPPMYSVEPLPLFRDVSVSERQSLFLRKLQICCFQFDFTDTLKNAREKEIKRQTLLELVDFIQSGAGKLTEVCQEEMVKMISVNIFRCLPPASHENTGQEPADLEEEEPYLEPSWPHLQLIYELLLRYIVPSDTDTKVAKRYIDHSFVLRLLELFETEDPREREYLKTILHRIYGKFMVHRPFIRKAMNHIFYRFIYETERHSGIGELLEILGSIINGFALPMKEEHKLFLIRALIPLHKPKPIAMYHQQLSYCIVQFVEKDYKLADTVIRGLLKFWPVTNCTKEVLFLGELEEVLEATQTVEFQRCMVPLFQQIARCLSSSNFQVAERALFLWNNEHVVGLIAQNRGVILPIIFASLEKNIESHWNQAVHGLSANIKRMFMEMDPELFEECQQQYEEKQAKSKQVEEQRQNRWRRLDEAVEEREREDPMITS