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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dCas9 fused with tagRFPt, P2A site and tagBFP, expressed under EF1-alpha promoter in a piggyBac plasmid. Expresses Blasticidin resistance under PGK promoter.
All-in-one CRISPR plasmid for integrating, deleting, or replacing a gene in S. cerevisiae. High-copy, URA3 plasmid contains human codon-optimized Cas9 and a guide RNA targeting ARS1014a sequence TTATGTGCGTATTGCTTTCA in yeast chromosome 10.
All-in-one CRISPR plasmid for integrating, deleting, or replacing a gene in S. cerevisiae. High-copy, URA3 plasmid contains human codon-optimized Cas9 and a guide RNA targeting YOLCd1b sequence GACTAGTTAAGCGAGCATGT in yeast chromosome 15.
p426_Cas9_gRNA-RDS1a without the ribozyme All-in-one CRISPR plasmid for integrating, deleting, or replacing a gene in S. cerevisiae. High-copy, URA3 plasmid contains human codon-optimized Cas9 and a guide RNA targeting RDS1a sequence ATTCAATACGAAATGTGTGC in yeast chromosome 3.
Modified CAG promoter-containing vector for ubiquitous expression of catalytically inactive Cas9 fused to LSD1. For targeted enhancer demethylation in chicken embryos.
modified version of the eSpCas9(1.1)_No_FLAG_ATP1A1_G3_Dual_sgRNA plasmid (addgene #86613) where the C-terminus of the eSpCas9 enzyme was fused to amino acids 1 – 110 of human Geminin
S. pyogenes dCas9 fused with the inactivated (E756A) catalytic domain of human DNMT3A (amino acids P602-V912) and T2A-EGFP (DNMT3A Synthetic, Human, S. pyogenes)
Use
CRISPR
Tags
3xFLAG, SV40 NLS, and T2A-EGFP
Expression
Mammalian
Mutation
D10A and H840A in S.pyogenes Cas9; E756A inactiva…
This plasmid contains expression cassette for NmCas9 with N and C NLS and an HA tag, a cassette for expression of tracrRNA, a cassette for cloning crRNA under the control of U6 promoter.
Expresses the NPM1 G6 sgRNA in combination with FLAGless eSpCas9(1.1). This vector can be used in combination with NPM1_mNeonGreen_Donor to tag NPM1 with mNeonGreen. pX330-like plasmid.