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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Ready-to-use AAV9 particles produced from pENN.AAV.CamKII 0.4.Cre.SV40 (#105558). In addition to the viral particles, you will also receive purified pENN.AAV.CamKII 0.4.Cre.SV40 plasmid DNA.
CamKII-driven Cre expression. 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.
Ready-to-use AAV5 particles produced from pAAV-CaMKIIa-hChR2(H134R)-EYFP (#26969). In addition to the viral particles, you will also receive purified pAAV-CaMKIIa-hChR2(H134R)-EYFP plasmid DNA.
CaMKIIa-driven, humanized channelrhodopsin H134R mutant fused to EYFP for optogenetic activation.
These AAV preparations are suitable purity for injection into animals.
Ready-to-use AAV9 particles produced from pAAV-hSyn-DIO-ChrimsonR-mRuby2-ST (#105448). In addition to the viral particles, you will also receive purified pAAV-hSyn-DIO-ChrimsonR-mRuby2-ST plasmid DNA.
hSyn-driven expression of ChrimsonR fused to mRuby2 fluorophore and targeted to the neuronal soma and proximal dendrites for optogenetic activation. These AAV preparations are suitable purity for injection into animals.
Ready-to-use AAV1 particles produced from pAAV-EF1a-Flpo (#55637). In addition to the viral particles, you will also receive purified pAAV-EF1a-Flpo plasmid DNA.
EF1a-driven Flpo recombinase expression. These AAV preparations are suitable purity for injection into animals.
Ready-to-use AAV1 particles produced from pAAV.Syn.GCaMP6f.WPRE.SV40 (#100837). In addition to the viral particles, you will also receive purified pAAV.Syn.GCaMP6f.WPRE.SV40 plasmid DNA.
Syn-driven GCaMP6f calcium sensor.
These AAV preparations are suitable purity for injection into animals.
Ready-to-use AAV5 particles produced from pZac2.1 gfaABC1D-tdTomato (#44332). In addition to the viral particles, you will also receive purified pZac2.1 gfaABC1D-tdTomato plasmid DNA.
GfaABC1D-driven tdTomato expression control. These AAV preparations are suitable purity for injection into animals.
Ready-to-use AAV9 particles produced from pAAV-hSyn-EGFP (#50465). In addition to the viral particles, you will also receive purified pAAV-hSyn-EGFP plasmid DNA.
hSyn-driven EGFP expression. These AAV preparations are suitable purity for injection into animals.
Ready-to-use AAV9 particles produced from pAAV-hsyn-GRAB_DA2m (#140553). In addition to the viral particles, you will also receive purified pAAV-hsyn-GRAB_DA2m plasmid DNA.
Synapsin-driven expression of 2nd generation medium affinity dopamine sensor GRAB_rDA2m. These AAV preparations are suitable purity for injection into animals.
Ready-to-use AAV PHP.eB particles produced from pAAV.GFAP.Cre.WPRE.hGH (#105550). In addition to the viral particles, you will also receive purified pAAV.GFAP.Cre.WPRE.hGH plasmid DNA.
GFAP-driven expression of Cre. 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 AAV Retrograde particles produced from pGP-AAV-syn-FLEX-jGCaMP8s-WPRE (#162377). In addition to the viral particles, you will also receive purified pGP-AAV-syn-FLEX-jGCaMP8s-WPRE plasmid DNA.
Syn-driven, Cre-dependent expression of calcium sensor GCaMP8s (more sensitive). 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.
SEE DEPOSITOR COMMENTS BELOW. Plasmid for IPTG-inducible expression and purification of protein A-Hia5-6xHis (pA-Hia5) for antibody directed DNA (adenine) methylation (as in DiMeLo-seq)
Ready-to-use Concentrated Lentiviral Prep particles produced from dCAS9-VP64_GFP (#61422). In addition to the viral particles, you will also receive purified dCAS9-VP64_GFP plasmid DNA.
Ready-to-use AAV5 particles produced from AAV-GfaABC1D-Cre-4x6T (#196410). In addition to the viral particles, you will also receive purified AAV-GfaABC1D-Cre-4x6T plasmid DNA.
GfaABC1D driven expression of Cre recombinase in astrocytes. These AAV preparations are suitable purity for injection into animals.