NCBI Accession #
NP_566101.1
NCBI GenBank Nucleotide #
NM_130313.3
NCBI Official Full Name
chloroplast signal recognition particle component (CAO)
NCBI Official Synonym Symbols
CHAOS; CHLOROPLAST SIGNAL RECOGNITION PARTICLE 43; CPSRP43; T30B22.25
NCBI Protein Information
chloroplast signal recognition particle component (CAO)
NCBI Summary
A component of the chloroplast signal recognition particle pathway that is involved in LHCP targeting. It is downregulated in response to high light. It recognizes the DPLG motif in Lhcb1.
UniProt Synonym Gene Names
CPSRP43; CpSRP43
UniProt Protein Name
Signal recognition particle 43 kDa protein, chloroplastic
UniProt Synonym Protein Names
Chromo protein SRP43; CpSRP43
UniProt Primary Accession #
O22265
UniProt Secondary Accession #
Q93V50; Q940I7; Q9SAU3
UniProt Related Accession #
O22265
UniProt Comments
Component of the chloroplast signal recognition particle pathway. Required for post-translational targeting of proteins into the thylakoid membrane but seems to be dispensable for co-translational targeting with a translating ribosome present. May be able to function independently of cpFTSY and FFC/cpSRP54 in targeting LHCPs to the thylakoids. Acts as a highly specific chaperone for LHCPs, preventing aggregation and being able to dissolve aggregates.