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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Ready-to-use AAV1 particles produced from pAAV-EF1a-N-CretrcintG (#69570). In addition to the viral particles, you will also receive purified pAAV-EF1a-N-CretrcintG plasmid DNA.
EF1a-driven expression of optimized N-terminal component of Cre recombinase dependent on GFP (Cre-DOG OPT); to be coinjected with pAAV-EF1a-C-CreintG (Addgene catalog# 69571) and GFP (or for use with transgenic GFP animals). These AAV preparations are suitable purity for injection into animals.
Ready-to-use AAV1 particles produced from pAAV-TREtight-mTagBFP2-B19G (#100799). In addition to the viral particles, you will also receive purified pAAV-TREtight-mTagBFP2-B19G plasmid DNA.
Helper virus for monosynaptic tracing with rabies virus; to be coinjected with pAAV-syn-FLEX-splitTVA-EGFP-tTA (Addgene# 100798). These AAV preparations are suitable purity for injection into animals.
Ready-to-use AAV Retrograde particles produced from pENN.AAV.hSyn.Cre.WPRE.hGH (#105553). In addition to the viral particles, you will also receive purified pENN.AAV.hSyn.Cre.WPRE.hGH plasmid DNA.
hSyn-driven Cre expression. 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 AAV Retrograde particles produced from AAV.rTH.PI.Cre.SV40 (#107788). In addition to the viral particles, you will also receive purified AAV.rTH.PI.Cre.SV40 plasmid DNA.
rTH promoter driving Cre expression. These AAV preparations are suitable purity for injection into animals.
Ready-to-use AAV Retrograde particles produced from pENN.AAV.EF1a.eGFP.WPRE.rBG (#105547). In addition to the viral particles, you will also receive purified pENN.AAV.EF1a.eGFP.WPRE.rBG plasmid DNA.
EF1a-driven EGFP expression. 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 AAV Retrograde particles produced from pENN.AAV.hSyn.HI.eGFP-Cre.WPRE.SV40 (#105540). In addition to the viral particles, you will also receive purified pENN.AAV.hSyn.HI.eGFP-Cre.WPRE.SV40 plasmid DNA.
Expression of EGFP-Cre from hSyn promoter. 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 AAV Retrograde particles produced from pAAV.Syn.NES-jRGECO1a.WPRE.SV40 (#100854). In addition to the viral particles, you will also receive purified pAAV.Syn.NES-jRGECO1a.WPRE.SV40 plasmid DNA.
Synapsin-driven GECO1a calcium sensor. 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 AAV Retrograde particles produced from pAAV.Syn.Flex.NES-jRGECO1a.WPRE.SV40 (#100853). In addition to the viral particles, you will also receive purified pAAV.Syn.Flex.NES-jRGECO1a.WPRE.SV40 plasmid DNA.
Synapsin-driven, Cre-dependent GECO1a calcium sensor. 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 AAV Retrograde particles produced from pENN.AAV.CamKII.HI.GFP-Cre.WPRE.SV40 (#105551). In addition to the viral particles, you will also receive purified pENN.AAV.CamKII.HI.GFP-Cre.WPRE.SV40 plasmid DNA.
Expression of GFP-Cre from CamKII promoter. 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 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 Retrograde particles produced from pAAV-EF1a-Cre (#55636). In addition to the viral particles, you will also receive purified pAAV-EF1a-Cre plasmid DNA.
EF1a-driven expression of Cre recombinase. 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 AAV Retrograde particles produced from pAAV-EF1a-vCre (#55638). In addition to the viral particles, you will also receive purified pAAV-EF1a-vCre plasmid DNA.
EF1a-driven expression of VCre. 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 AAV Retrograde particles produced from pAAV-hSyn-mCherry (#114472). In addition to the viral particles, you will also receive purified pAAV-hSyn-mCherry plasmid DNA.
Synapsin-driven mCherry control vector. 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 AAV Retrograde 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 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 AAV Retrograde particles produced from pAAV-CAG-GFP (#37825). In addition to the viral particles, you will also receive purified pAAV-CAG-GFP plasmid DNA.
GFP 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 AAV Retrograde particles produced from pAAV-hSyn-EGFP (#50465). In addition to the viral particles, you will also receive purified pAAV-hSyn-EGFP plasmid DNA.
Synapsin-driven EGFP-expression control.
These AAV preparations are suitable purity for injection into animals. These AAV were produced with a retrograde serotype, which permits retrograde access to projection neurons.
Ready-to-use AAV Retrograde particles produced from pAAV-FLEX-tdTomato (#28306). In addition to the viral particles, you will also receive purified pAAV-FLEX-tdTomato plasmid DNA.
Cre-dependent (FLEX) tdTomato expression. 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 AAV Retrograde particles produced from pAAV-CaMKIIa-mCherry (#114469). In addition to the viral particles, you will also receive purified pAAV-CaMKIIa-mCherry plasmid DNA.
CamKIIa-driven expression of mCherry. 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.