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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An adeno-associated viral vector expressing channelrhodopsin-2 fused to a V5 epitope and the ligand-binding domain of estrogen receptor (ChRERa) from a CaMKii promoter, for use in PET imaging
An adeno-associated viral vector expressing Cre-dependent channelrhodopsin-2 fused to a V5 epitope and the ligand-binding domain of estrogen receptor (ChRERa) from a synapsin promoter, for use in PET
Can be used to generate AAV virus that will express the ChR2(H134R)-EYFP channelrhodopsin fusion protein in neurons under intersectional control by Flp and Cre recombinases
Can be used to generate AAV virus that will express the ChR2(H134R)-EYFP channelrhodopsin fusion protein in neurons under intersectional control by Dre and Cre recombinases
Ready-to-use AAV PHP.eB particles produced from pAAV_BiPVe3_ChR2_mCherry (#213941). In addition to the viral particles, you will also receive purified pAAV_BiPVe3_ChR2_mCherry plasmid DNA.
Expression of mCherry-tagged channelrhodopsin-2 under the control of the PV+ basket cell-targeting enhancer E3. 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.