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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inducbile color change and cancer regulation: FlpO recombinase dependent expression of KrasG12D cMyc and SV40 large T antigen with doxycycline inducible downregulation through tetKRAB system.
first casette contain a red fluorescent protein (katushka) linked to puromycin resitance gene through an E2A site
second cassette contains mVENUS-kras-cmyc-SV40LT-KRABoff
Tags
mTQ2 blue fluorescent and red flourescent gene ka…
The Expanded EasyClone-MarkerFree toolkit is a new set of 8 validated chromosomal loci for the stable integration of heterologous DNA into baker’s yeast Saccharomyces cerevisiae.
This three-step (Build - Transform - Assess) Saccharomyces cerevisiae kit is comprised of two modules (Engineering and Biosensor) that can be used independently or in combination.
Yeast Golden Gate cloning for protein secretion in Saccharomyces cerevisiae and Pichia pastoris. Methanol utilization (MUT) promoters, signal peptides, C-terminal tags, episomal and integrative.
The 4G (Golden-Gate-guided Gibson) cloning kit provides elements for rapid one-day assembly of multi-gene expression vectors in bacterial and eukaryotic expression hosts.
Collection of genes and mutations for reference pathway signatures and phenotypes to compare with those derived from cancer alleles; represent over 25 cellular signaling pathways and processes
The MoChlo Toolbox consists of a library of standardized chloroplast-specific genetic modules for Golden-Gate cloning of synthetic operons into chloroplast transformation vectors.
A collection of Multisite Gateway Entry clone plasmids which can be used in a combinatorial fashion to generate large numbers of tagged expression clones for protein expression in a variety of systems