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 or amino acid 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 or protein-translated 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.
tblastn: Designed for comparing protein sequences against a translated nucleotide sequence database.
Helpful for finding plasmids with codon-optimized sequences.
tblastn-fast: A faster version of tblastn that may return results more quickly, but is less sensitive
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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Part of REGA-SIGN, a NanoBRET-based G protein biosensor. It encodes GNAI1 tagged with NanoLuciferase and is meant to be paired with Ggamma2 labeled with LSS-mKATE2
Ready-to-use AAV5 particles produced from pAAV-GFAP-hM3D(Gq)-mCherry (#50478). In addition to the viral particles, you will also receive purified pAAV-GFAP-hM3D(Gq)-mCherry plasmid DNA.
GFAP-driven hM4D(Gq) receptor with an mCherry reporter for CNO-induced neuronal activation. These AAV preparations are suitable purity for injection into animals.
Ready-to-use AAV Retrograde particles produced from pAAV-CAG-tdTomato (codon diversified) (#59462). In addition to the viral particles, you will also receive purified pAAV-CAG-tdTomato (codon diversified) plasmid DNA.
tdTomato expression control. These AAV were produced with a retrograde serotype, which permits retrograde access to projection neurons.
These AAV preparations are suitable purity for injection into animals.
Ready-to-use AAV9 particles produced from pAAV-hSyn-GRAB_ACh3.0 (#121922). In addition to the viral particles, you will also receive purified pAAV-hSyn-GRAB_ACh3.0 plasmid DNA.
Syn-driven expression of the genetically-encoded fluorescent acethycholine(ACh) sensor GRAB-ACh3.0. These AAV preparations are suitable purity for injection into animals.
Lentiviral vector for overexpressing transcription factor ORFs with unique 24-bp barcodes. Barcodes facilitate identification of transcription factors in pooled screens.
Ready-to-use AAV PHP.eB particles produced from pGP-AAV-syn-jGCaMP8m-WPRE (#162375). In addition to the viral particles, you will also receive purified pGP-AAV-syn-jGCaMP8m-WPRE plasmid DNA.
Syn-driven expression of calcium sensor GCaMP8m (faster, more sensitive). These AAV preparations are suitable purity for injection into animals.
Ready-to-use AAV9 particles produced from pAAV-EF1a-double floxed-hChR2(H134R)-EYFP-WPRE-HGHpA (#20298). In addition to the viral particles, you will also receive purified pAAV-EF1a-double floxed-hChR2(H134R)-EYFP-WPRE-HGHpA plasmid DNA.
EF1a-driven, Cre-dependent, humanized channelrhodopsin H134R mutant fused to EYFP, for optogenetic activation.
These AAV preparations are suitable purity for injection into animals.
Ready-to-use AAV Retrograde particles produced from AAV-pgk-Cre (#24593). In addition to the viral particles, you will also receive purified AAV-pgk-Cre plasmid DNA.
Cre expression under the PGK promoter. These AAV were produced with a retrograde serotype, which permits retrograde access to projection neurons.
Ready-to-use AAV PHP.eB particles produced from pAAV-S5E2-dTom-nlsdTom (#135630). In addition to the viral particles, you will also receive purified pAAV-S5E2-dTom-nlsdTom plasmid DNA.
Bicistronic expression of dTomato and nuclear-targeted dTomato under the control of the E2 regulatory element. These AAV were produced with the PHPeB serotype, which permits efficient transduction of the central nervous system. These AAV preparations are suitable purity for injection into animals.
Ready-to-use AAV8 particles produced from pAAV-hSyn-hM3D(Gq)-mCherry (#50474). In addition to the viral particles, you will also receive purified pAAV-hSyn-hM3D(Gq)-mCherry plasmid DNA.
hSyn-driven hM3D(Gq) receptor with an mCherry reporter for CNO-induced neuronal activation. These AAV preparations are suitable purity for injection into animals.