Table 2.

Consensus Sequences for Cyclin and the Destruction Box in Arabidopsis Cyclins

SubclassCyclin Box SignatureDestruction Box
Cyclin A1MR-(I/V)L(I/V)DWRAPL(G/S)(D/N)ITN
Cyclin A2MR-(I/V)L(I/V)DWRAVL(K/G)(D/E)(I/V)(T/S)N
Cyclin A3aMR-(I/V)L(I/V)DWRVVLGEL(P/L)N
Cyclin B1MR-IL(I/V/F)DWR-(A/V)LGDIGN
Cyclin B2MR-IL(I/V/F)DWRR(A/V)L–IN
Cyclin B3TRGILINWN.D.b
Cyclin D1REDSVAWN.D.
Cyclin D2RNQALDWN.D.
Cyclin D3R(E/K)(E/K)A(L/V)(D/G)WN.D.
Cyclin D4R(R/I)(D/Q)AL(N/G)WN.D.
Cyclin D5RLIAIDWN.D.
Cyclin D6RNQAISSN.D.
Cyclin D7RFHAFQWN.D.
Cyclin HcMRAFYEAKN.D.
  • a In CYCA3;1, cyclin box KRGVLVDW was not included in the consensus; no destruction box was detected.

  • b N.D., not detected.

  • c Plant cyclin H consensus for cyclin box MR(A/V)(F/Y)YE-K (based on the sequence of Arath;CYCH, Orysa;CYCH, and cyclin H of poplar).