Table 1.
Structures of plant immune receptors or their domains covered in this review
| Receptor | Type: Cell-surface | Plant host | Ligand | Ligand type | Co-receptor | PDB code | References |
|---|---|---|---|---|---|---|---|
| FLS2 | LRR-RLK | Arabidopsis thaliana | flg22 | MAMP | BAK1 | 4MN8 | 12 |
| PEPR1 | LRR-RLK | A. thaliana | Atpep | DAMP | BAK1 | 5GR8 | 13 |
| CERK1 | LysM-RLK | A. thaliana | PGN | MAMP | LYM3/1 | 4EBY | 10 |
| SOBIR1 | LRR-RLK | A. thaliana | NAa | NA | LRR-RLP, BAK1 | 6R1H | 19 |
| BIR3 | Pseudokinase | A. thaliana | NA | NA | BRI1/S.E.RK1 | 6FG8 | 24 |
| BIK1 | RLCK | A. thaliana | NA | NA | BAK1, FLS2 | 5TOS | 25 |
| CEBiP | LysM-RLP | Oryza sativa | Chitin | MAMP | OsCERK1 | 5JCD, 5JCE | 26 |
| Receptor | Type: Intracellular | Plant host | Ligand(s) | Ligand type | Co-receptor | PDB code | References |
| MLA10 CC | CC-NLR | Hordeum vulgare | NA | NA | NA | 3QFL, 5T1Y | 27, 28 |
| Pikp-1 HMA | CC-NLR | O. sativa | AVR-PikD, AVR-PikE, AVR-PikA, AVR-Pia | MAX effector | Pikp-2 | 5A6W, 5A6P, 6G11, 6G10, 6Q76 | 11, 29, 30 |
| Pikm-1 HMA | CC-NLR | O. sativa | AVR-PikE, AVR-PikA, AVR-PikD | MAX effector | Pikm-2 | 6FUB, 6FUD, 6FU9 | 29 |
| Pia HMA | CC-NLR | O. sativa | Avr1-CO39 | MAX effector | RGA4 | 5ZNG, 5ZNE | 31 |
| RRS1 WRKY | TIR-NLR | A. thaliana | PopP2 | T3SE | RPS4 | 5W3X | 17 |
| ZAR1 | CC-NLR | A. thaliana | Avr-AC | T3SE | RKS1 | 6J5T, 6J6I, 6J5W, 6J5V | 14, 15 |
| RPS4 TIR | TIR-NLR | A. thaliana | NA | NA | RRS1 | 4C6T, 4C6R, | 16 |
| RRS1 TIR | TIR-NLR | A. thaliana | NA | NA | RPS4 | 4C6T,4C6S | 16 |
| SNC1 TIR | TIR-NLR | A. thaliana | NA | NA | NA | 5TEC | 32 |
| SNC1 TIR | TIR-NLR | A. thaliana | NA | NA | NA | 5H3C | 33 |
| Sr33 CC | CC-NLR | Aegilops tauschii | NA | NA | NA | 2NCG | 28 |
| RPP1 TIR | TIR-NLR | A. thaliana | NA | NA | NA | 5TEB | 32 |
| NRC1 NB-ARC | TIR-NLR | Solanum lycopersicum | NA | NA | NA | 6S2P | 34 |
| RUN1 TIR | TIR-NLR | Vitis rotundifolia | NA | NA | NA | 60OW | 35 |
| Rx CC | CC-NLR | Solanum tuberosum | NA | NA | RanGAP2 | 4M70 | 18 |
| RPV1 TIR | TIR-NLR | Vitis rotundifolia | NA | NA | NA | 5KU7 | 36 |
| L6 TIR | TIR-NLR | Linum usitatissimumm | NA | NA | NA | 3OZI | 37 |
| Pto | Kinase | Solanum pimpinellifolium | AvrPtoB | T3SE | Prf | 3HGK | 38 |
aNA, not applicable.