wget ftp://ftp-trace.ncbi.nlm.nih.gov/sra/sra-instant/reads/ByExp/sra/SRX/SRX386/SRX386677/SRR1042411/SRR1042411.sra -O Beaf-32-GSM1278639.sra
wget ftp://ftp-trace.ncbi.nlm.nih.gov/sra/sra-instant/reads/ByExp/sra/SRX/SRX386/SRX386678/SRR1042412/SRR1042412.sra -O IgG-GSM1278640.sra