Open Mass Spectrometry Search Algorithm (OMSSA)
Probe Database Debut
New Structure Link from Protein
BLAST Download Update
New Microbial Genomes in GenBank
NCBI 4-Pack Course
RefSeq Release 14
New Organisms in UniGene
GenBank Passes 100 Gigabases
New BLAST Formatter
Splign Alignment Tool
GenBank Release 150
New Genome Builds
Entrez Nucleotide Database Splits
NCBI's traditional Nucleotide database has been divided into three component databases: "EST" containing Expressed Sequence Tags (ESTs); "GSS" containing Genome Survey Sequences (GSS); and "CoreNucleotide" containing the remaining nucleotide sequences. This division will facilitate more tightly focused searches.
A statistics line shows the results for the three component nucleotide databases and is shown in Figure 1. The new component databases are included within the Entrez linking scheme and links within and between databases can be selected as usual.
Entrez features such as the Limits, Preview/ Index, History, and MyNCBI tabs are maintained separately. Because unique search fields are available for each new Nucleotide component database more precise searches are possible. See the Entrez help document for more information and for searching details:
A more detailed article on the split of the Entrez Nucleotide database will appear in the next issue of the NCBI news.
Figure 1. Results of the search "All[filter]" is shown in the statistics line below the filter tabs, indicating a total of 62.2 million records in the Entire Nucleotide division of the database info.