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.
This website uses cookies to ensure you get the best experience. By continuing to use this site, you agree to the use of cookies.
Please note: Your browser does not support the features used on Addgene's website. You may not be able to create an account or request plasmids through this website until you upgrade your browser.
Learn more
Please note: Your browser does not fully support some of the features used on Addgene's website. If you run into any problems registering, depositing, or ordering please contact us at [email protected].
Learn more
Donor template for mStayGold insertion into the N-terminus of the LMNB1 locus. For nuclear envelope visualization. To be co-transfected with sgRNA plasmid px330-PITCh-LMNB1 (Addgene #207770)
Donor template for mScarlet insertion into the N-terminus of the ACTB locus for actin visualization. To be co-transfected with sgRNA plasmid px330-PITCh-ACTB Addgene #207748
Ubiquitin promoter-controlled expression of 3×FLAG-NLS-zCas9-NLS. Contains gRNA scaffold for insertion of target sequence (U6-26 promoter). Selection of transgenic seeds by CFP fluoresce.
Ready-to-use AAV5 particles produced from pAAV-flex-taCasp3-TEVp (#45580). In addition to the viral particles, you will also receive purified pAAV-flex-taCasp3-TEVp plasmid DNA.
EF1a-driven, Cre-dependent, bicicstronic expression of designer pro-taCasp3 and TEVp. 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 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.
Makes CRISPR gRNAs detectable by single-cell RNA-seq. The gRNA is expressed as part of the puromycin resistance mRNA transcribed by RNA Pol II and in its functional form from the hU6 promoter.
Ready-to-use AAV8 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 preparations are suitable purity for injection into animals.
Ready-to-use AAV5 particles produced from pAAV-EF1a-double floxed-hChR2(H134R)-mCherry-WPRE-HGHpA (#20297). In addition to the viral particles, you will also receive purified pAAV-EF1a-double floxed-hChR2(H134R)-mCherry-WPRE-HGHpA plasmid DNA.
Humanized channelrhodopsin H134R mutant fused to mCherry, driven by the EF1a promoter. Cre-dependent.
These AAV preparations are suitable purity for injection into animals.
Ready-to-use AAV9 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 preparations are suitable purity for injection into animals.
Ready-to-use AAV9 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 preparations are suitable purity for injection into animals.