Amino acid sequence analysis of pepper CaRING1 and the RING-H2 finger domain. A, Alignment of deduced amino acid sequences of pepper CaRING1 and other RING-H2 finger proteins from Arabidopsis (accession nos. NP_173506, NP_177767, AAM_63811, and NP_195273) and field mustard (accession no. ABK56013). Identical amino acids are shown in black boxes, and conserved amino acids are shaded in gray. Black boxes indicate the TM and RING domains. B, Alignment of RING domains. Sequences include CaRING1, Arabidopsis ATL8 (accession no. NP_177767), rice EL5 (accession no. Q9LRB7; Takai et al., 2002), Nicotiana benthamiana ACRE132 (accession no. AAG43550; Durrant et al., 2000), Arabidopsis ATL2 (accession no. NP_188294; Serrano and Guzmán, 2004), and Arabidopsis ATL6 (accession no. NP_566249). Identical amino acids are shown in black boxes. Conserved Cys (C) and His (H) residues are indicated by asterisks.