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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Doxycyline-inducible (TetOn) human Geminin (C-terminal HA tag) with Dbox removed to prevent degradation by APC/C, expressed from all-in-one pCW vector (TetOn + rtTA)
Doxycyline-inducible (TetOn) human Cdt1 (SV40 NLS localization and C-terminal mCherry tag) with mutations which abroggate its S phase degradation, expressed from all-in-one pCW vector (TetOn + rtTA)
Doxycyline-inducible (TetOn) human Cdt1 (SV40 NLS localization and C-terminal HA tag) with mutations which abroggate its S phase degradation, expressed from all-in-one pCW vector (TetOn + rtTA)
A piggybac-based cloning vector containing TRE3G promoter-driven short-form of TP53 and CAG promoter-driven nuclear-localized Clover-P2A-rtTA-IRES-BSD.
All-in-One piggyBac transposon Gateway Destination vector for dox-inducible expression of N-terminal Halo tagged protein (inducible GFP and constitutive rtTA and neomycin resistance)
All-in-One piggyBac transposon Gateway Destination vector for dox-inducible expression of N-terminal Halo tagged protein (inducible NGFR and constitutive rtTA and neomycin resistance)
Doxycyline-inducible (TetOn) human Cdt1 (SV40 NLS , C-terminal HA ) w/ mutations stopping S phase degradation and in MCM binding (R198A/R210A), expressed from all-in-one pCW vector (TetOn + rtTA)
Doxycyline-inducible (TetOn) human Cdt1 (SDV40 NLS , C-terminal HA ) w/ mutations stopping S phase degradation and in MCM binding domain (Δ499-546), expressed from all-in-one pCW vector (TetOn + rtTA)
LPUtopia-7 matching RMCE donor plasmid with GFP Positive-Feedback circuit (mPF-GFP). Use BlastR for positive selection and HSV-TK for negative selection.
Donor construct for introduction of NGN2 into AAVS1 safe harbor site and iPSC differentiation to cortical neuron, TALEN cut site outside of homology arm
All-in-One piggyBac transposon Gateway Destination vector for dox-inducible expression of N-terminal His-TEV-GFP tagged protein (inducible NGFR and constitutive rtTA and neomycin resistance)
AAV transfer vector encoding TRE3G-driven NTVE(PABP) with a surface FLAG epitope tag. Requires co-transduction with AAVs expressing rtTA (e.g., Tet-On 3G) or tTA for dox-dependent expression.
Tetracycline-inducible expression of SOX10-OLIG2-NKX6.2 as polyprotein linked by self cleavage sites P2A and T2A. rtTA (Tet-ON) is driven the EF1alpha promoter.
LPUtopia-7 matching RMCE donor plasmid with Cas9-resistant GFP-BACH1 Positive-Feedback circuit (mPF-BACH1). Use BlastR for positive selection and HSV-TK for negative selection.