NCBI Accession #
YP_009161363.1
NCBI GenBank Nucleotide #
NC_027678.1
NCBI Official Full Name
PsaB (chloroplast)
NCBI Official Symbol
psaB
NCBI Protein Information
PsaB
UniProt Protein Name
Photosystem I P700 chlorophyll a apoprotein A2
UniProt Synonym Protein Names
PSI-B
UniProt Primary Accession #
P0C357
UniProt Secondary Accession #
P12156; Q6QXU8; Q6QY75
UniProt Related Accession #
P0C357
UniProt Comments
PsaA and PsaB bind P700, the primary electron donor of photosystem I (PSI), as well as the electron acceptors A0, A1 and FX. PSI is a plastocyanin-ferredoxin oxidoreductase, converting photonic excitation into a charge separation, which transfers an electron from the donor P700 chlorophyll pair to the spectroscopically characterized acceptors A0, A1, FX, FA and FB in turn. Oxidized P700 is reduced on the lumenal side of the thylakoid membrane by plastocyanin.