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Literature summary for 3.4.21.102 extracted from

  • Che, Y.; Fu, A.; Hou, X.; McDonald, K.; Buchanan, B.B.; Huang, W.; Luan, S.
    C-terminal processing of reaction center protein D1 is essential for the function and assembly of photosystem II in Arabidopsis (2013), Proc. Natl. Acad. Sci. USA, 110, 16247-16252.
    View publication on PubMedView publication on EuropePMC
Search for more literature for 3.4.21.102

Localization

Localization Comment Organism GeneOntology No. Textmining
chloroplast chloroplast thylakoid lumen Arabidopsis thaliana 9507
-

Organism

Organism UniProt Comment Textmining
Arabidopsis thaliana O23614
-
-

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
D1 protein precursor + H2O
-
 Arabidopsis thaliana mature D1 protein + ?
-
 ?

Synonyms

Synonyms Comment Organism
At4g17740
-
 Arabidopsis thaliana
carboxyl-terminal-processing peptidase 2
-
 Arabidopsis thaliana
CtpA
-
 Arabidopsis thaliana

General Information

General Information Comment Organism
physiological function a mutant lacking CtpA retains all D1 protein in precursor form, confirming that CtpA is solely responsible for processing. A knockout Ctpa mutant is lethal under normal growth conditions but is viable with sucrose under low-light conditions. Viable plants show deficiencies in PSII and thylakoid stacking. The mutant retains both monomer and dimer forms of the PSII complexes that, although nonfunctional, contain both the core and extrinsic subunits. This mutant is also essentially devoid of PSII supercomplexes. A knock-down mutant expressing about 2% wild-type level of CtpA shows normal growth under low light but is stunted and accumulats D1 protein precursor under high light Arabidopsis thaliana