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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Expresses enzymatically monobiotinylated full-length RH5 with no N-linked glycans upon cotransfection with BirA in mammalian cells. Contains a C-terminal rat Cd4 d3+4 tag.
Cyan color luminescent Ca2+ indicator targeted to endoplasmic reticulum. Calreticulin and a KDEL signal for ER retention located at the N-terminus and C-terminus of CeNL(Ca2+)_110μ
Plasmid ensures constitutive expression of the C-terminal fragment of split TRbeta (aa 413-460), fused to the catalytically inactive Cas9 (dCas9) protein, a flexible GS linker and the SV40 NLS signal at the N-terminus
Baculovirus Expression of LFn-Needle fusion. The LFn domain acts as a signal sequence that targets proteins for cytosolic translocation via the co-administered protective antigen (PA) channel protein
Bacterial expression of fluorescent reporter for calcium signaling, based off of GCaMP6s. Contains a stable reference Large Stokes Shift (LSS) mOrange nested within the reporting cpEGFP.
Encodes C-terminal (substrate) fragment of bimolecular AMPK/BRSK activity reporter (bimABKAR); cytosol targeted; use in conjunction with pcDNA3-Cerulean-FHA1-NES
Baculovirus Expression of LFn -Fla fusion. The LFn
domain acts as a signal sequence that targets proteins for cytosolic translocation via the co-administered protective antigen (PA)
channel protein