First-pass extracted concept

23-kD D1 fragment

Candidate: toolkit item1 source documents3 linked claims
Live refresh every 5sNext refresh in 5s

Aliases

23-kD fragment, primary light-induced cleavage product of the D1 protein

Evidence Snippets

The primary light-induced cleavage product of the D1 protein, a 23-kD fragment, was found to be degraded in isolated thylakoids in the dark
Evidence 1Source 1DOIPubMedprovenance

Supporting Sources

Linked Claims

Claim 1activitysupports2000Source 1DOIPubMed

Purified FtsH degrades the 23-kD D1 fragment in isolated photosystem II core complexes and in thylakoid membranes depleted of endogenous FtsH.

Quoted textsource-backed
Purified FtsH degraded the 23-kD D1 fragment present in isolated photosystem II core complexes, as well as that in thylakoid membranes depleted of endogenous FtsH.
Claim 2mechanismsupports2000Source 1DOIPubMed

Degradation of the 23-kD D1 fragment in isolated thylakoids is dependent on ATP hydrolysis and divalent metal ions, suggesting involvement of FtsH protease.

Quoted textsource-backed
The primary light-induced cleavage product of the D1 protein, a 23-kD fragment, was found to be degraded in isolated thylakoids in the dark during a process dependent on ATP hydrolysis and divalent metal ions, suggesting the involvement of FtsH.
Claim 3substrate classificationsupports2000Source 1DOIPubMed

The 23-kD D1 fragment is presented as a novel class of FtsH substrate consisting of functionally assembled proteins that have undergone irreversible photooxidative damage and cleavage.

Quoted textsource-backed
the 23-kD D1 fragment represents a novel class of FtsH substrate-functionally assembled proteins that have undergone irreversible photooxidative damage and cleavage.