NCBI Accession #
NP_568839.1
NCBI GenBank Nucleotide #
NM_125011.4
NCBI Official Full Name
COP9 signalosome subunit 6A
NCBI Official Symbol
CSN6A
NCBI Official Synonym Symbols
COP9 signalosome subunit 6A; MXK23.2; MXK23_2
NCBI Protein Information
COP9 signalosome subunit 6A
NCBI Summary
one of two genes encoding subunit 6 of COP9 signalosome complex. Protein contains a MPR1p and PAD1p N-terminal (MPN) domain at the N-terminal region and belongs to the Mov34 superfamily. Mutant and antisense expression result in a number of developmental defects and in ubiquitin/proteasome-mediated protein degradation.
UniProt Synonym Gene Names
Signalosome subunit 6a
UniProt Protein Name
COP9 signalosome complex subunit 6a
UniProt Primary Accession #
Q8W206
UniProt Secondary Accession #
Q84WB5; Q941I1; Q9FG76
UniProt Related Accession #
Q8W206
UniProt Comments
Component of the COP9 signalosome complex (CSN), a complex involved in various cellular and developmental processes such as photomorphogenesis and auxin and jasmonate responses. The CSN complex is an essential regulator of the ubiquitin (Ubl) conjugation pathway by mediating the deneddylation of the cullin subunits of SCF-type E3 ligase complexes, leading to decrease the Ubl ligase activity of SCF. It is involved in repression of photomorphogenesis in darkness by regulating the activity of COP1-containing Ubl ligase complexes. The complex is also required for degradation of PSIAA6 by regulating the activity of the Ubl ligase SCF-TIR complex. Essential for the structural integrity of the CSN holocomplex (PubMed:17307927).