SRS822446 SAMN03264209 Metagenomic sequence derived from stool sample GBAB-247-0125797424 408170 human gut metagenome 454 GS FLX Titanium 16S sequence bioproject 264177 host Homo sapiens collection_date missing geo_loc_name missing lat_lon missing sample id 0125797424 host_phenotype normal case-control_status control source_sample stool BioSampleModel Metagenome or environmental