Sequences from GenBank (1) can be searched in and retrieved from three Entrez databases: Nucleotide, EST and Genome Survey Sequence (GSS) (specified as nuccore, nucest and nucgss within the E-utilities). Entrez Nucleotide contains all GenBank sequences except those within the EST or GSS GenBank divisions. The database also contains whole genome shotgun (WGS) sequences, Third Party Annotation sequences and sequences imported from the Entrez Structure database. Conceptual translations of any coding sequences in these records are placed in the Entrez Protein database. The EST database contains all records within the EST division of GenBank, a collection of first-pass single-read cDNA sequences that include no annotated biological features. Similarly, the GSS database corresponds to the GSS division of GenBank, which contains first-pass single-read genomic sequences that rarely include annotated biological features.
