ID   CSN6B_BRAOL             Reviewed;          58 AA.
AC   P68357;
DT   23-NOV-2004, integrated into UniProtKB/Swiss-Prot.
DT   23-NOV-2004, sequence version 1.
DT   25-MAY-2022, entry version 40.
DE   RecName: Full=COP9 signalosome complex subunit 6b;
DE            Short=Signalosome subunit 6b;
DE   Flags: Fragments;
GN   Name=CSN6B;
OS   Brassica oleracea (Wild cabbage).
OC   Eukaryota; Viridiplantae; Streptophyta; Embryophyta; Tracheophyta;
OC   Spermatophyta; Magnoliopsida; eudicotyledons; Gunneridae; Pentapetalae;
OC   rosids; malvids; Brassicales; Brassicaceae; Brassiceae; Brassica.
OX   NCBI_TaxID=3712;
RN   [1]
RP   PROTEIN SEQUENCE OF 1-12 AND 16-58, AND COMPONENT OF THE CSN COMPLEX WITH
RP   CSN1; CSN2; CSN3; CSN4; CSN5; CSN7 AND CSN8.
RX   PubMed=10521526; DOI=10.2307/3871091;
RA   Serino G., Tsuge T., Kwok S., Matsui M., Wei N., Deng X.-W.;
RT   "Arabidopsis cop8 and fus4 mutations define the same gene that encodes
RT   subunit 4 of the COP9 signalosome.";
RL   Plant Cell 11:1967-1980(1999).
RN   [2]
RP   PROTEIN SEQUENCE OF 1-39.
RX   PubMed=11701877; DOI=10.2307/3871583;
RA   Peng Z., Serino G., Deng X.-W.;
RT   "Molecular characterization of subunit 6 of the COP9 signalosome and its
RT   role in multifaceted developmental processes in Arabidopsis.";
RL   Plant Cell 13:2393-2407(2001).
CC   -!- FUNCTION: Component of the COP9 signalosome complex (CSN), a complex
CC       involved in various cellular and developmental processes such as
CC       photomorphogenesis and auxin and jasmonate responses. The CSN complex
CC       is an essential regulator of the ubiquitin (Ubl) conjugation pathway by
CC       mediating the deneddylation of the cullin subunits of SCF-type E3
CC       ligase complexes, leading to decrease the Ubl ligase activity of SCF.
CC       It is involved in repression of photomorphogenesis in darkness by
CC       regulating the activity of COP1-containing Ubl ligase complexes (By
CC       similarity). {ECO:0000250}.
CC   -!- SUBUNIT: Component of the CSN complex, probably composed of CSN1, CSN2,
CC       CSN3, CSN4, CSN5 (CSN5A or CSN5B), CSN6 (CSN6A or CSN6B), CSN7 and
CC       CSN8.
CC   -!- SUBCELLULAR LOCATION: Cytoplasm. Nucleus.
CC   -!- MISCELLANEOUS: Although strongly related to metalloprotease proteins,
CC       it lacks the JAMM motif that probably constitutes the catalytic center.
CC       Its function as protease is therefore unsure.
CC   -!- SIMILARITY: Belongs to the peptidase M67A family. CSN6 subfamily.
CC       {ECO:0000305}.
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DR   AlphaFoldDB; P68357; -.
DR   IntAct; P68357; 1.
DR   GO; GO:0008180; C:COP9 signalosome; IEA:UniProtKB-KW.
DR   GO; GO:0005737; C:cytoplasm; IEA:UniProtKB-SubCell.
DR   GO; GO:0009585; P:red, far-red light phototransduction; IEA:UniProtKB-KW.
PE   1: Evidence at protein level;
KW   Cytoplasm; Developmental protein; Direct protein sequencing; Nucleus;
KW   Phytochrome signaling pathway; Signalosome.
FT   CHAIN           <1..>58
FT                   /note="COP9 signalosome complex subunit 6b"
FT                   /id="PRO_0000194868"
FT   NON_CONS        15..16
FT                   /evidence="ECO:0000305"
FT   NON_CONS        39..40
FT                   /evidence="ECO:0000305"
FT   NON_TER         1
FT   NON_TER         58
SQ   SEQUENCE   58 AA;  6707 MW;  B7B203190B57E9FE CRC64;
     KLHPLVMLNI SDHLTKALMD INESPVYVLL NPTINHAQKK MLNSRIRVLH QYLGSMQK