Amino acid sequence alignment of MdSSK1 and plant Skp1-like proteins.

<p>Amino acid sequences were aligned using Clustal W. MdSSK1 (AB898683), PbSSK1 (CCH26218), PbSSK2 (CCH26217), PavSSK1 (AFJ21661), PiSSK1 (AEE39461), PhSSK1 (ACT35733), AhSSK1 (ABC84199), ASK1 (NP565123), ASK2 (NP_568603) were from <i>Malus</i> × <i>domestica, Pyrus bretschneideri, Prunus avium</i>, <i>Petunia inflata</i>, <i>Petunia hybrida</i>, <i>Antirrhinum hispanicum</i> and <i>Arabidopsis thaliana</i>, respectively. Conserved sites and relatively conservative sites are marked with asterisks and dots, respectively. Arrows represent the secondary structure. S: β-sheet; H: α-helix, predicted by Phyre2 (<a href="http://www.sbg.bio.ic.ac.uk/phyre2" target="_blank">http://www.sbg.bio.ic.ac.uk/phyre2</a>). The Skp1-POZ and Skp1 domains detected by Pfam (<a href="http://pfam.sanger.ac.uk" target="_blank">http://pfam.sanger.ac.uk</a>) are denoted by lines.