NCBI Accession #
NP_001328575.1
NCBI GenBank Nucleotide #
NM_001342225.1
NCBI Official Full Name
UvrB/UvrC domain protein (DUF3506)
NCBI Official Synonym Symbols
EXECUTER1; T16L1.120; T16L1_120
NCBI Protein Information
UvrB/UvrC domain protein (DUF3506)
NCBI Summary
Encodes one of the two plastid proteins EXECUTER (EX1, AT4G33630) and EX2 (AT1G27510). Mediates singlet oxygen induced programmed cell death.
UniProt Synonym Gene Names
AtEX1
UniProt Protein Name
Protein EXECUTER 1, chloroplastic
UniProt Primary Accession #
Q93YW0
UniProt Secondary Accession #
O81880
UniProt Related Accession #
Q93YW0
UniProt Comments
Together with EX2, enables higher plants to perceive singlet oxygen as a stress signal in plastid that activates a genetically determined nuclear stress response program which triggers a programmed cell death (PCD). This transfer of singlet oxygen-induced stress-related signals from the plastid to the nucleus that triggers genetically controlled PCD pathway is unique to photosynthetic eukaryotes and operates under mild stress conditions, impeding photosystem II (PSII) without causing photooxidative damage of the plant.