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  1. Molecular Biology Reference

    Type
    Guide
    ...Sanger sequencing, sometimes referred to as chain-termination sequencing or dideoxy sequencing. To understand...of its sequence to design a effective primer. Sanger sequencing chromatogram Sanger sequencing is modeled...information into the DNA sequence. Sanger sequencing results are presented as a sequencing chromatogram which...efficient and reliable sequencing method. Next Generation Sequencing Although Sanger sequencing is quick and efficient...single-stranded DNA sequence used as an initiation point for PCR amplification or DNA sequencing of the plasmid...vectors must contain a promoter sequence, a transcription terminator sequence, and the inserted gene. The ... of interest. So how do scientists sequence DNA? Sanger Sequencing In 1975, Frederick Sanger developed...
  2. Plan Your Experiment

    Type
    Guide
    ...select a target sequence and design your gRNA. Know your cell line/organism and genomic sequence When possible...should sequence the region you are planning to modify prior to designing your gRNA, as sequence variation...identifying all PAM sequences within the genetic region to be targeted. If there are no PAM sequences for your chosen...Cas9 variants and PAM sequences ). Once possible PAM sequences and putative target sites have been identified...the PAM sequence, so gRNAs with no homology or those with mismatches close to the PAM sequence will have... the desired target sequence or on-target activity . Two gRNA targeting sequences with 100% homology ...within the selected target sequence. For example, gRNA targeting sequences containing a G nucleotide at...
  3. Guide to Using Pooled Libraries

    Type
    Guide
    ... Next-Generation Sequencing Next-generation sequencing allows for parallel sequencing of millions of DNA...contains a unique gene targeting sequence, but there are multiple sequences targeting each gene in the overall...libraries contain plasmids with unique, semi-random sequences that can be used for applications like lineage... of interest. In either case, next-generation sequencing of the maxiprep DNA is recommended to verify ...nucleotide analog 6-thioguanine . Next-generation sequencing is the only way to accurately evaluate which ...in the case of a reporter) Sort “winning” cells Sequence those cells that pass (“win”) Get a list of genes...screen: Apply library Perform Next Generation Sequencing (NGS) on a control sample (no selection) In parallel...
  4. CRISPR Guide

    Type
    Guide
    ... be any ~20 nucleotide sequence, provided it meets two conditions: The sequence is unique compared to ...(PAM) The PAM sequence (NGG) serves as a binding signal for Cas9, but the exact sequence depends on which... target, the seed sequence (8–10 bases at the 3′ end of the gRNA targeting sequence) will begin to anneal...matters. Mismatches between the target sequence in the 3′ seed sequence inhibit target cleavage, while mismatches...determined by both the gRNA sequence and the Cas9 enzyme. Ideally, a gRNA targeting sequence will have perfect ...require PAM sequences in very close proximity to the region to be edited, making the PAM sequence (NGG) limiting...target sequence in your donor DNA with a silent mutation that does not change the amino acid sequence. HDR...
  5. Sequencing Primers

    Type
    Guide
    ... Reference Sequencing Primers Sequencing Primers Looking for Primers? The primer sequences listed on the...A list of sequencing primers that Addgene uses for sequence verification of deposited plasmids. Plasmid...what primers are listed under "5' sequencing primer" and "3' sequencing primer". Still not sure what primer...reference. Addgene does not distribute primers. For sequencing plasmids in our repository, we've chosen primers...To identify primers that may be useful in your sequencing reaction, find your plasmid page and see what...Addgene has used a number of primers for sanger sequence verification of deposited plasmids. Below is a...TACTATTGCCAGCATTGCTGC (Invitrogen) Alpha factor signal sequence, forward primer Amp-R ATAATACCGCGCCACATAGC 5' ...
  6. Promoters

    Type
    Guide
    ...is the DNA strand that encodes codons and whose sequence corresponds to the mRNA transcript produced. The...that is transcribed by the RNA polymerase. DNA sequences called response elements are located within promoter...Promoters are controlled by various DNA regulatory sequences including enhancers, boundary elements, insulators...template strand can initiate. The TATA box is a DNA sequence (5'-TATAAA-3') within the core promoter region...contain this TATA box. Most prokaryotes contain a sequence thought to be functionally equivalent called the...Eukaryotic promoters span a wide range of DNA sequences. It is not unusual to have several regulatory ...helps to explain how many physically distant DNA sequences can affect transcription of a given gene. The ...
  7. Cloning

    Type
    Guide
    ...all recognition sequences are removed from the final product, with no undesired sequence ("scar") retained... DNA fragments with repetitive sequences and DNA that ends in sequences that form complex secondary structues...cleave double stranded DNA (dsDNA) at specific sequence sites in the DNA. In restriction cloning, scientists...relatively cheap. They also cut specific target sequences, that range from 4 to 13 base pairs, and produce...sites can be repeated throughout a specific DNA sequence, which can make it difficult at times to identify...cloning also leaves behind a short scar in the DNA sequence and can be time consuming compared to other cloning...attB2 sites attached to the 5’ and 3’ ends of DNA sequence. This fragment can then be cloned into a gateway...
  8. Retrovirus Guide

    Type
    Guide
    ...interest: The transgene sequence is flanked by long terminal repeat (LTR) sequences, which facilitate integration...the transfer plasmid sequences into the host genome. Typically it is the sequences between and including...Leukemia Virus) or MSCV (Murine Stem Cell Virus) sequences. Packaging genes (viral Gag-Pol): Gag is a structural...virus post‐transcriptional regulatory element; sequence that stimulates the expression of transgenes via...the 5' and 3' ends of the provirus). Contains sequences necessary for activation of viral genomic RNA ...the addition of a poly A tract just after the R sequence. Return to Top...
  9. Lentiviral Guide

    Type
    Guide
    ...interest. The transgene sequence is flanked by long terminal repeat (LTR) sequences, which facilitate integration...the transfer plasmid sequences into the host genome. Typically it is the sequences between and including...destination vector contains attB sequences with which the attP sequences recombine. Visit Invitrogen's website...This is accomplished by PCR amplifying the insert sequence using primers that contain the restriction sites...cloned into an entry vector at a region flanked by sequences (called attP1 and attP2) that allow the insert...encodes the gene of interest and contains the sequences that will incorporate into the host cell genome...Nucleocapsid. RRE in cis Rev Response Element; sequence to which the Rev protein binds. WPRE in cis Woodchuck...
  10. Adeno-associated virus (AAV) Guide

    Type
    Guide
    ...expression of neighboring genes. The short coding sequences of channelrhodopsins, halorhodopsins, and other...rate-limiting step, scAAV contains complementary sequences that are capable of spontaneously annealing, upon...between two transfer plasmids, but with substantial sequence overlap. Co-expression induces homologous recombination...
  11. Educational Resources

    Type
    Guide
    ...Readiness Molecular Biology Learn about plasmids, sequencing, vectors, and restriction enzymes to assist with...
  12. Antibody Guide

    Type
    Guide
    ...antibody’s identity to be easily confirmed via sequencing, and enables the variable region and constant...the DNA is released from the complex and can be sequenced and amplified for analysis. Overview of application...
  13. Optogenetics Guide

    Type
    Guide
    ...TULIPs), plasmids allow cloning of protein coding sequences with GFP-LOVpep, cpPDZ, ePDZb and ePDZb1 as tags...
Showing: 1 - 13 of 13 results