Uncharacterized 28.3 kDa protein in gbd 5'region MPRFAANLSMMYNEHAFLDRFAAAAADGFRAVEFLFPYEHAAAELRARLDANGLTQALFNAAPGDWAAGERGLAALPGREADFRGTIGRALEYAGVIGNDRIHVMAGLIPADADRARCRATYLENLAFAANAAAAQGVTVLIEPINTRDMPGYFLNRQDDGQAICKEVGAANLKVQFDCYHCQIVEGDVAMKLKRDIAGIGHIQIAGVPERHEPDVGELNYPYLFEVMDTLGYDGWIGCEYRPRAGTSAGLGWLKPYLGR 260 ORF4 YGB4_CUPNE