Table II.
Extensin motifs and repeats
| Protein | Total Lengtha | Specific Motifsb | No. of Repeats |
|---|---|---|---|
| AtLRX1 | 367 | SPPPPssKMSPsVRay | 4 |
| SPPPPYVYS | 6 | ||
| SPPPPspvYYppvt(p/q) | 10 | ||
| PTSYFPPMPSVSYDASPPPPPSYY | 1 (C terminus) | ||
| AtLRX2 | 407 | SPPPPssKMSPsfrat | 6 |
| SPPPPspYIYS | 2 | ||
| SPPPpppvYYppvtq | 10 | ||
| YEDTPLPPIRGVSYASPPPPSIPYY | 1 (C terminus) | ||
| AtLRX3 | 372 | SPPPPpPPPPppVy | 7 |
| SPPPpvYhy | 9 | ||
| YEGPLPPVIGVSYASPPPPPFY | 1 (C terminus) | ||
| AtLRX4 | 98 | SPPpppV(h/y) | 4 |
| FEGPLPPVIGVSYASPPPPPFY | 1 (C terminus) | ||
| AtLRX5 | 458 | SPpTTPsPGGSPPS | 6 |
| YEGPLPPIPGISYASPPPPPFY | 1 (C terminus) | ||
| AtLRX6 | 96 | SP29YVY | 1 |
| No other repeat | |||
| AtLRX7 | 60 | No repeat [two S(P)n motifs)] | – |
| LeLRX | 310 | KP | 4 |
| SyEHPktp | 7 | ||
| FYENIPLPPVIGVSYASPPPPVIPYY | 1 (C terminus) | ||
| OsLRX1 | 314 | TpSYP | 4 |
| KLPFPPVYGVSYASPPPPVKPYN | 1 (C terminus) | ||
| OsLRX2 | 176 | SPSS | 3 |
| KLPFPPVyGVAYSSPPPP | 2 | ||
| KLPFPPVYGVAYSSPPPPSKPYN | 1 (C terminus) | ||
| OsLRX3 | 93 | No repeats | – |
| OsLRX4 | 148 | WPP(v/i)(h/g)VPYGSPPPPPLH | 2 |
| OsLRX5 | 178 | PyYEVSPEDRYL | 2 |
| SPPPPPAY | 2 | ||
| AtPEX1 | 559 | PK(q/p)E | 17 |
| DPYDASPxxxRR | 1 (Similar to AtPEX2) | ||
| PKqEtPKPEESPKPQP | 3 | ||
| SPPPPVh | 24 | ||
| ILPPNIGHQYASPPPPMFPGY | 1 (C terminus) | ||
| AtPEX2 | 463 | PK (11) KP(4) Q(8) | 1 (Similar to AtPEX1) |
| DPYDASPxxxRR | 12 | ||
| SPPPpv(hyf) | 13 | ||
| Q(av)pt | 1 (C terminus) | ||
| VLPPHIGFQYASPPPPMFQGY | |||
| AtPEX3 | 342 | PVxKPQPPKESPQPxDPYxQSPVxxRR | 2 (Similar to AtPEX4) |
| SPPPPV(h/y) | 23 | ||
| IIPPFIGHQYASPPPPMFQGY | 1 (C terminus) | ||
| AtPEX4 | 287 | PVhkPsPVptT | 5 |
| PVxKPQPPKESPQPxDPYxQSPVxxRR | 1 (Similar to AtPEX3 | ||
| SPPPpxxxV(h/y) | 17 | ||
| IIPPFIGHQYASPPPPMFAGY | 1 (C terminus) | ||
| LePEX | 322 | PK | 6 |
| V(h/aSPPPP) | 32 | ||
| ALPPTLGSLYASPPPPIFQGY | 1 (C terminus) | ||
| OsPEX1 | 983 | SPPTPESKA | 3 |
| KSPPSHTPESSSPPSkESEPPPTPTPKSSPPSHEEYVPPSPAKSTPP | 2 | ||
| vKSpPPpAPVilppp | 11 | ||
| VLLPPVMAHQYASPPPPQFQGY | 1 (C terminus) | ||
| OsPEX2 | 378 | vksPPPPAPvSSPPPP | 14 |
| ILPPILSHSYASPPPPQFEGY | 1 (C terminus) | ||
| OsPEX3 | 106 | SPPPPpppAPV | 2 |
| ILPPILSAKYQSPPPPFFEGY | 1 (C terminus) | ||
| ZmPEX1 | 782 | vKsppPpapvaSPPPPvKssPPapVSSPPptpksspppapvsspppp | 10 |
| ILPPIMANKYASPPPPQFQGY | 1 (C terminus) | ||
| ZmPEX2 | 907 | vKsPPpPapvaspppp | 8 |
| SPPPTPKSSPPLAPVSSPPQVEKTSPPPAPVS | 3 | ||
| vKssPPpapvSsPPp(t/a/p)pkssppapvsspp | 13 | ||
| ILPPIMANKYASPPPPLFQGY | 1 (C terminus) |
a
The total length of the extensin domain is given in amino acids.
b
Upper and lower case letters indicate 100% or more than 50% conservation between all the repeats, respectively. Lower case letters in parentheses indicate amino acids that are individually present in less than 50% of the repeats but collectively make more than 50% of the residues at this position. Lower case x represents any amino acid or a gap.