DEG_SCF_TIR1_1 - This degron motif is present in Aux/IAA transcriptional repressor proteins and binds to TIR1/AFB F-box proteins of the SCF E3 ubiquitin ligase in an auxin-dependent manner. |
| IAA7_ARATH | 82 | 93 | Pre‑assembly | Composite binding site formation | Binding of Auxin-responsive protein IAA7 (IAA7) to Protein TRANSPORT INHIBITOR RESPONSE 1 (TIR1), an F-box substrate recognition subunit of the SCF E3 ubiquitin ligase, depends on binding of the plant hormone auxin to TIR1, as this pre-assembled complex provides a composite binding site for the degron motif in IAA7. Subsequent ubiquitylation of IAA7 by the SCF targets this transcriptional repressor for proteasomal degradation, a pre-requisite for the transcriptional response to auxin. | details |
| IAA17_ARATH | 82 | 93 | Pre‑assembly | Composite binding site formation | Binding of Auxin-responsive protein IAA17 (IAA17) to Protein TRANSPORT INHIBITOR RESPONSE 1 (TIR1), an F-box substrate recognition subunit of the SCF E3 ubiquitin ligase, depends on binding of the plant hormone auxin to TIR1, as this pre-assembled complex provides a composite binding site for the degron motif in IAA17. Subsequent ubiquitylation of IAA17 by the SCF targets this transcriptional repressor for proteasomal degradation, a pre-requisite for the transcriptional response to auxin. | details |
| IAA1_ARATH | 55 | 66 | Pre‑assembly | Composite binding site formation | Binding of Auxin-responsive protein IAA1 (IAA1) to Protein TRANSPORT INHIBITOR RESPONSE 1 (TIR1), an F-box substrate recognition subunit of the SCF E3 ubiquitin ligase, depends on binding of the plant hormone auxin to TIR1, as this pre-assembled complex provides a composite binding site for the degron motif in IAA1. Subsequent ubiquitylation of IAA1 by the SCF targets this transcriptional repressor for proteasomal degradation, a pre-requisite for the transcriptional response to auxin. | details |
| IAA28_ARATH | 48 | 59 | Pre‑assembly | Composite binding site formation | Binding of Auxin-responsive protein IAA28 (IAA28) to Protein TRANSPORT INHIBITOR RESPONSE 1 (TIR1), an F-box substrate recognition subunit of the SCF E3 ubiquitin ligase, depends on binding of the plant hormone auxin to TIR1, as this pre-assembled complex provides a composite binding site for the degron motif in IAA28. Subsequent ubiquitylation of IAA28 by the SCF targets this transcriptional repressor for proteasomal degradation, a pre-requisite for the transcriptional response to auxin. | details |
| IAA12_ARATH | 69 | 80 | Pre‑assembly | Composite binding site formation | Binding of Auxin-responsive protein IAA12 (IAA12) to Protein TRANSPORT INHIBITOR RESPONSE 1 (TIR1), an F-box substrate recognition subunit of the SCF E3 ubiquitin ligase, depends on binding of the plant hormone auxin to TIR1, as this pre-assembled complex provides a composite binding site for the degron motif in IAA12. Subsequent ubiquitylation of IAA12 by the SCF targets this transcriptional repressor for proteasomal degradation, a pre-requisite for the transcriptional response to auxin. | details |
| IAA3_ARATH | 64 | 75 | Pre‑assembly | Composite binding site formation | Binding of Auxin-responsive protein IAA3 (IAA3) to Protein TRANSPORT INHIBITOR RESPONSE 1 (TIR1), an F-box substrate recognition subunit of the SCF E3 ubiquitin ligase, depends on binding of the plant hormone auxin to TIR1, as this pre-assembled complex provides a composite binding site for the degron motif in IAA3. Subsequent ubiquitylation of IAA3 by the SCF targets this transcriptional repressor for proteasomal degradation, a pre-requisite for the transcriptional response to auxin. | details |
