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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For insulated expression in Synechocystis 6803. As pCK306 (rhaBAD rhamnose-inducible promoter, YFP, an E. coli-Synechocystis shuttle vector, chromosomal-integration sites) + ilvBN terminator
Expression vector for a transcript origination from a D. pse core promoter, which is used as trasfection control (normalization), i.e. STAP-seq screening vector containing one specific core promoter
Expression vector for a transcript origination from a D. pse core promoter, which is used as trasfection control (normalization), i.e. STAP-seq screening vector containing one specific core promoter
Short hairpin RNAs were designed to target murine Cit (encoding Citron Rho-interacting kinase) and were subcloned into the Banshee-GFP vector for expression under control of the H1 promoter.
Short hairpin RNAs were designed to target murine Cit (encoding Citron Rho-interacting kinase) and were subcloned into the Banshee-GFP vector for expression under control of the H1 promoter.
AAV vector plasmid expressing mBaoJin under the human synapsin (SYN) promoter. It also contains an optimised and truncated version of WPRE as a regulatory element.
AAV vector plasmid expressing mBaoJin under a short variant of the CAG (sCAG) promoter. It also contains an optimised and truncated version of WPRE as a regulatory element.
Lentiviral construct for the expression of Cas9 protein and puromycin resistance from EFS promoter and two guide RNAs targeting for deletion PROX1 start codon sequence.
Expresses S. pyogenes CRISPR chimeric RNA element with customizable sgRNA from U6 promoter and DsREd from EF-1a promoter. 3rd generation lentiviral backbone.
A recombinant AAV2 plasmid encoding the PiGM-Iq system with CRY2PHR, CIBN and EGFP as expression marker. GFAP promoter for astrocyte-selective expression.