ATF3 GI:95102483 activating transcription factor 3 isoform 2 1 mmlqhpgqvs asevsasaiv pclsppgslv fedfanltpf vkeelrfaiq 50 51 nkhlchrmss alesvtvsdr plgvsitkae vapeederkk rrrernkiaa 100 101 akcrnkkkek teclqklprp fwvqktciwa vdsck