Table 1. Summary of the COP/DET/FUS loci and their respective molecular identities.

COP/DET/FUS locus name

Other protein names

Function

COP1

Putative ubiquitin ligase component; promotes HY5 & HYH degradation(a)

DET1

Nuclear protein required for HY5 & HYH degradation(b),

COP10

E2 variant(c)

COP16

Not cloned(d)

COP11

CSN1

COP9 signalosome subunit 1(e)

FUS12

CSN2

COP9 signalosome subunit 2(f)

FUS11

CSN3

COP9 signalosome subunit 3(g)

COP8

CSN4

COP9 signalosome subunit 4(h)

FUS5

CSN7

COP9 signalosome subunit 7(i)

COP9

CSN8

COP9 signalosome subunit 8(k)

 

Table 2. CSN subunit composition and identity in Arabidopsis and human.

Subunit

MW (kDa) Arabidopsis

Motif

Other names Arabidopsis

Other names mammals

Identity (%) with human

CSN1

50

PCI

COP11/FUS6(a)

GPS1(i)

44.7

CSN2

51

PCI

FUS12/COP12(b)

TRIP15(l), ALIEN

61.1

CSN3

47

PCI

FUS11/COP13(c)

42.0

CSN4

45

PCI

COP8/FUS4(d)

49.5

CSN5

40

MPN

AJH1(e), AJH2

JAB1(m)

62.0

CSN6

35

MPN

CSN6a(f), CSN6b

HVIP(n)

39.8

CSN7

25

PCI

FUS5/COP15(g)

34.4

CSN8

22

PCI

COP9/FUS7/FUS8(h)

32.3

 

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last updated: 01/04/2003