Protein
Metallothionein-like protein 2B
Organism
Arabidopsis thaliana
Function
Metallothioneins have a high content of cysteine residues that bind various heavy metals (Probable). Functions as metal chelator of copper (Cu) and zinc (Zn). Functions cooperatively with the phytochelatin synthase PCS1 to protect plants from Cu and cadmium toxicity (PubMed:18287486). Plays a role in Cu homeostasis, specifically in the remobilization of Cu from senescing leaves. The mobilization of Cu from internal sources is important for seed development (PubMed:24635746).
Similarity
Belongs to the metallothionein superfamily. Type 15 family.
Sequence
MSCCGGSCGCGSACKCGNGCGGCKRYPDLENTATETLVLGVAPAMNSQYEASGETFVAENDACKCGSDCKCNPCTCK