user-defined upper limit for the number of target sequences returned
Alignment
region of similarity between target and query sequences
E-value
a BLAST statistic representing the significance of an alignment, values close to zero
indicate high sequence similarity with low probability of the similarity occurring by chance
Identities
the number of exact nucleotide matches over the alignment, expressed as a fraction
and a percentage
Query Coverage
the length of the query sequence that matches the target sequence in the
alignment
Bit Score
a BLAST statistic measuring the quality of an alignment, higher values indicate a
more significant match
Span
the length of the alignment, including gaps
About Search by Sequence
Search by Sequence performs a nucleotide-nucleotide BLAST search against Addgene’s plasmid sequence database.
BLAST returns plasmids with similarity to the query sequence.
Results are sorted by E-value, a statistic from BLAST that describes the significance of a match.
Lower values are considered better matches.
FASTA headers and numbers at the beginning of each line will be removed.
The query should only contain DNA characters.
Tips for Success
Enter a distinct sequence that is an important, differentiating feature. For example, the coding region of
a gene, instead of the plasmid origin of replication.
Inspect the percent identity, query coverage, and alignment details to determine if a result match is satisfactory.
Visit the corresponding plasmid webpage to view additional details about a matching plasmid.
If no results are returned:
Try a different isoform or region of the desired sequence.
Choose a different BLAST database. Try the general “All Addgene Plasmids” (default selection),
instead of a specific database, such as “Plant Expression Plasmids”
Try selecting a different BLAST algorithm:
megablast: Designed for comparing sequences within the same, or closely related, species.
Default selection.
blastn: Designed for comparing sequences from different species. May return additional results,
if exact species match is not required.
blastn-short: Optimized for searching with shorter sequences (<= 30 nucleotides)
but can still be effective with slightly larger sequences.
There may not be a match in our database.
You can adjust the Max Results setting on the results page from 25 to 500. If many sequences share the same top E-value,
only a truncated set of equally high-scoring matches will be shown. Set the Max Results to 500 to see more matches.
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Encodes codon-optimized AF mutant of M. mazei-derived pyrrolysine (Pyl) tRNA synthetase fused to a nuclear export signal (NESPylRSAF) & tRNACUAPyl used for amber codon suppression in mammalian cells
A CAGGS driven, piggybac compatible, tet-on expression vector containing a luciferase reporter followed by a P2A cleavage peptide and H2A fused mCherry for nuclear labeling.
A Tol2 based expression vector for RU486 inducible expression of GFP in the nucleus with a destablized lex transactivator and a c-fos minimal promoter.
A PiggyBac vector with a cre-dependent dual luciferase / nuclear mCherry reporter. In the presence of cre, this tet-off vector will be ubiquitously expressed in the absence of dox/tet
A gateway compatible 5' entry clone containing the crestin gene followed by the mus musculus c Fos minimal promoter and then a rabbit beta globin intron to drive neural crest-specific gene expression
A CAGGS-driven expression vector containing a vhh-Lamin nanobody for nuclear lamina labeling followed by an IRES and a myristoylated TagBFP for labeling the cell membrane.
Mammalian expression of S protein of SARS-CoV2 under CMV promoter, tagged with 6His and released extracellular environment after expression for protein purification
Expression of spCas9, gRNA targeting the end of Tubb3 gene and donor GFP(Y39TAG). Can be used for amber codon suppression and click chemistry labeling of endogenous beta-3 tubulin in mammalian cells.
Contains a donor sequence with a part of Nefl intron 3, whole Nefl exon 4 and linkerA6TAG-3xFLAG. Can be used as a donor for the tagging of endogenous NFL via TKIT approach and click labeling of NFL.