>sp|O23969|SF21_HELAN Pollen-specific protein SF21 OS=Helianthus annuus GN=SF21 MADSGHSISVTFPSFHSGGKEHIIRTGCGSVSVTVCGDQEKPPLITYPDLALNHMSCFQG LFVSPESASLLLHNFCIYHINPPGHELGAASIGIDDPVPSIEDLCDQILVVLNYFRLGSV MCMGAMAGAYILTLFSIKYSERVTGLILISPICKAPSWTERFYNKLTSKTLYYYGMCDLV KELLIHRYFSKEVCGNPEIPESDMVLACRKLLDERDSVNVWRYLQAIDSRRDITEELKSL ECKTIIFVGDSSPFHDEALQIAEKLGTNCSALVEVHACGSMVTQEQPHAMLIPLENFLKG FGLYRPCRYSNSPRSPLGPSSIDPELLYPEKMGLKLRPIKLRVSPQPRAHKN