6
Introduction to Sequence Analysis
Nucleotide Analysis
Checking for vector contamination
¥ The EBI provides a vector screening service called BLAST2_EVEC.
¥ It is based on NCBI BLAST2 and uses the latest implementation of the BLAST algorithm and a special sequence databank known as EMVEC to check your sequences for vector contamination.
¥ EMVEC is a sequence collection that contains complete and fragmented sequences of vectors. The main use of this library is to provide support to sequencing teams with the  process of removing vector sequences from their data prior to submission to the EMBL, GenBank or DDBJ databanks.
EMVEC: http://www.ebi.ac.uk/Tools/blastall/vectors.html