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 Lentiviral Prep particles produced from Human CRISPRa sgRNA library Calabrese in backbone XPR_502 (P65 HSF), Set A (#92379). In addition to the viral particles, you will also receive purified Human CRISPRa sgRNA library Calabrese in backbone XPR_502 (P65 HSF), Set A plasmid DNA.
Ready-to-use lentiviral pooled library for CRISPR activation screening in human cells. Contains 56,762 sgRNAs, targeting 18,885 genes. Concentrated lentiviral particles carrying set A of the Calabrese human CRISPRa sgRNA activation library in backbone XPR_502 (P65 HSF) .
Ready-to-use Lentiviral Prep particles produced from lentiCas9-Blast (#52962). In addition to the viral particles, you will also receive purified lentiCas9-Blast plasmid DNA.
Lentiviral particles carrying Cas9 and blasticidin resistance. This virus is used to make stable cell lines expressing Cas9.
Ready-to-use Lentiviral Prep particles produced from lenti dCAS-VP64_Blast (#61425). In addition to the viral particles, you will also receive purified lenti dCAS-VP64_Blast plasmid DNA.
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 Lentiviral Prep particles produced from Human CRISPRi sgRNA library Dolcetto in backbone XPR_050, Set A (#92385). In addition to the viral particles, you will also receive purified Human CRISPRi sgRNA library Dolcetto in backbone XPR_050, Set A plasmid DNA.
Ready-to-use AAV1 particles produced from AAV-hSyn-mCherry-P2A-Cre-WPRE (#107312). In addition to the viral particles, you will also receive purified AAV-hSyn-mCherry-P2A-Cre-WPRE plasmid DNA.
hSyn-driven expression of mCherry and Cre (physically separate). These AAV preparations are suitable purity for injection into animals.
This library can be used to investigate cardiac gene regulation. It targets transcriptional regulators that are expressed in mouse cardiomyocytes. A subset of GATA4 regulated genes are also included.
Ready-to-use Lentiviral Prep particles produced from Human sgRNA library Brunello in lentiGuide-Puro (#73178). In addition to the viral particles, you will also receive purified Human sgRNA library Brunello in lentiGuide-Puro plasmid DNA.
Ready-to-use lentiviral pooled library for CRISPR screening in human cells. Use on cells that are stably expressing Cas9 to make edits across 19,114 genes in the human genome.
Ready-to-use Lentiviral Prep particles produced from Human sgRNA library Brunello in lentiCRISPRv2 (#73179). In addition to the viral particles, you will also receive purified Human sgRNA library Brunello in lentiCRISPRv2 plasmid DNA.
Ready-to-use lentiviral pooled library for CRISPR screening in human cells. This backbone contains SpCas9 and unique gRNAs, and can be used to make edits across 19,114 genes in the human genome.
In addition to the viral particles, you will also receive purified Human sgRNA library Brunello in lentiCRISPRv2.
Ready-to-use Lentiviral Prep particles produced from Mouse sgRNA library Brie in lentiGuide-Puro (#73633). In addition to the viral particles, you will also receive purified Mouse sgRNA library Brie in lentiGuide-Puro plasmid DNA.
<p><p>Ready-to-use lentiviral pooled library for CRISPR screening in mouse cells. Use on cells that are stably expressing Cas9 to make edits across 19,674 genes in the mouse genome.</p></p>
Ready-to-use AAV PHP.eB particles produced from AiP11839-pAAV-hSyn1-SYFP2-10aa-H2B-WPRE3-BGHpA (Alias: CN1839) (#163509). In addition to the viral particles, you will also receive purified AiP11839-pAAV-hSyn1-SYFP2-10aa-H2B-WPRE3-BGHpA (Alias: CN1839) plasmid DNA.
hSyn1-driven expression for nuclear SYFP2 labeling in neurons. Useful for nuclear isolation and scRNA-seq applications. 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.