ERX3456218 webin-reads-SAMEA5282669 ERP113526 PRJEB31019 "These reads were simulated using a forked version of BEAR with mean insert length of 250 and a standard deviation of 50. For taxonomic composition (.comp files) please refer to the SEPATH paper supplementary information." ERS3089936 SAMEA5282669 Synthetic WGS METAGENOMIC other unspecified