This FASTA file is the NCBI Nt (Nucleotide) database (public domain) used for holistic metagenomic screening of ancient DNA data at the Department of Archaeogenetics at the Max Planck Institute for the Science of Human History. We offer here the FASTA file used to construct MALT databases (https://uni-tuebingen.de/fakultaeten/mathematisch-naturwissenschaftliche-fakultaet/fachbereiche/informatik/lehrstuehle/algorithms-in-bioinformatics/software/malt/), which are generally too large for uploading. Please see each relevent publications that use the database for MALT database construction commands. NCBI does not retain older versions of this database which is why this has been uploaded here. It was downloaded on 2017-10-26 12:39 from: ftp://ftp-trace.ncbi.nih.gov/blast/db/FASTA/nt.gz. The NCBI Nt database is released into the public domain as per https://www.ncbi.nlm.nih.gov/home/about/policies/.