Alignment of SCAmpPs precursor proteins and structure of SCAmpPs genes. (a) Alignment of the precursor deduced amino acid sequences SCAmpPs-1 (NCBI accession EF175924), SCAmpPs-2 (EF175926), SCAmpPs-3 (EF175925), SCAmpPs-4 (EF175927), Citrus aurantium-1 (EY850721), Citrus aurantium-2 (EY848546) and Citrus natsudaidai (BB999724). Boxes indicate predicted cyclic peptide product domains. (b) Representation of a model citrus SCAmpPs gene. Locations of precursor codons are indicated in dark blue, cyclic peptide product codons in light blue. Exon and intron positions indicated by brown and white boxes. (c) Deduced amino acid sequences of C. clementina SCAmpPs located on chromosome 5 at positions 7.138 (NCBI accession FC928056) and 1.003 Mb (FC872825).