Amino acid sequence alignment of Arabidopsis CML42, CML43, and conserved CaM (CaM2). Black shading indicates identical amino acids, gray shading indicates conserved amino acids. Black bars and roman numerals above the residues indicate the CaM2 Ca2+-binding EF-hands. The non-canonical EF hand (II) of CML42 and CML43 is marked with an asterisk. GenBankTM accessions are Q9SVG9, Q9FI19, and NP_850344 for CML42, CML43, and CaM2, respectively.