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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pMOBC360_VM_C1 assembled plasmid (Chloramphenicol R) containing four inserts (POC1546-POC1549) assembled in POC1525 using the site-selective methylation protection approach
tetA and LacO3O1 promoters in tandem conformation with 150bp distance between them, expressing mCherry with pBELO_L6-PT3-T4 backbone and chloramphenicol resistance
LacO3O1 and tetA promoters in tandem conformation with 250bp distance between them, expressing mCherry with pBELO_L6-PT3-T4 backbone and chloramphenicol resistance
LacO3O1 and tetA promoters in tandem conformation with 150bp distance between them, expressing mCherry with pBELO_L6-PT3-T4 backbone and chloramphenicol resistance
tetA and LacO3O1 promoters in tandem conformation with 350bp distance between them, expressing mCherry with pBELO_L6-PT3-T4 backbone and chloramphenicol resistance
Expression plasmid with a ULP1 removable N-term MBP SUMO tag, a TEV removable C-term 8xHis tag, and Chloramphenicol resistance. NikJ C199U cloned in the cloning site.
Cutibacterium acnes replicative plasmid for recombinant expression. pBRESP36A-based vector with C. acnes chloramphenicol resistance, harbouring a medium-copy pBR322 E. coli ori (no ROP)
A helper plasmid for expression of the artificial T7ocr-gam-bet-exo operon. The plasmid carries the chloramphenicol acetyltransferase gene repressible by the CI repressor of lambda phage.
Plant expression vector (OsUBI promoter) for direct cloning of artificial microRNAs into rice MIR390 precursor. To use for expressing amiRNAs in monocots.
tetA, araBAD and LacO3O1 promoters in tandem conformation with 200bp distance between them, expressing mCherry with pBELO_L6-PT3-T4 backbone and chloramphenicol resistance
Plant expression vector (2x35S) for direct cloning of synthetic trans-acting siRNAs into Arabidopsis thaliana TAS1c precursor into position downstream 3'D1[+]
Gateway-compatible entry vector for direct cloning of synthetic trans-acting siRNAs into Arabidopsis thaliana TAS1c precursor at position downstream 3'D1[+]
Multi-host shuttle vector that can be transferred by conjugation and replicate in S. meliloti, E. coli, S. cerevisiae, and P. tricornutum. Contains S. meliloti pSymB origin and Nm/Kan resistance.
Multi-host shuttle vector that can be transferred by conjugation and replicate in S. meliloti, E. coli, S. cerevisiae, and P. tricornutum. Contains S. meliloti pSymA origin and Tet resistance.
Multi-host shuttle vector that can be transferred by conjugation and replicate in S. meliloti, E. coli, S. cerevisiae, and P. tricornutum. Contains S. meliloti pSymB origin and Spec resistance.
Multi-host shuttle vector that can be transferred by conjugation and replicate in S. meliloti, E. coli, S. cerevisiae, and P. tricornutum. Contains S. meliloti pSymA origin and Spec resistance.
Multi-host shuttle vector that can be transferred by conjugation and replicate in S. meliloti, E. coli, S. cerevisiae, and P. tricornutum. Contains S. meliloti pSymB origin and Tet resistance.
Multi-host shuttle vector that can be transferred by conjugation and replicate in S. meliloti, E. coli, S. cerevisiae, and P. tricornutum. Contains S. meliloti pSymA origin and Nm/Kan resistance.
Plant expression vector for direct cloning of synthetic trans-acting siRNAs into Arabidopsis thaliana TAS1c precursor downstream 3'D1[+]. Contains AtMIR173 for syntasi expression in any plant species.