Interactive Tools

    NEB Tools

GlycanAnalyzer_WebTool_NEB Glycan Analyzer
Use this tool to interpret Ultra or High Pressure liquid chromatography (UPLC/HPLC) N-glycan profiles following exoglycosidase digestions.
NEBNext Selector NEBNext Selector
Use this tool to guide you through selection of NEBNext reagents for next generation sequencing sample preparation.
ThermostableLigase_Calc_WebTool_NEB Thermostable Ligase Reaction Temperature Calculator
This tool will estimate an optimal reaction temperature to minimize mismatch for thermostable ligation of two adjacent ssDNA probes annealed to a template.
NEBcloner NEBcloner
Use this tool to find the right products and protocols for each step (digestion, end modification, ligation and transformation) of your next traditional cloning experiment. Also, find other relevant tools and resources to enable protocol optimization.
NEBioCalculator NEBioCalculator
Use this tool for your scientific calculations and conversions for DNA and RNA. Options include conversion of mass to moles, ligation amounts, conversion of OD to concentration, dilution and molarity. Additional features include sgRNA Template Oligo Design and qPCR library quantification.
NEBuilder_WebTool_NEB NEBuilder Assembly Tool
NEBuilder Assembly Tool can be used to design primers for your Gibson Assembly reaction, based on the entered fragment sequences and the polymerase being used for amplification.
Cross Ref Competitor Cross-Reference Tools
Use this tool to select another company's product and find out which NEB product is compatible. Choose either the competitor’s product name or catalog number from the available selections, and this tool will identify the recommended NEB product.
Enzyme Finder Enzyme Finder
Use this tool to select restriction enzymes by name, sequence, overhang or type. Enter your sequence using single letter code nomenclature, and Enzyme Finder will identify the right enzyme for the job.
Double Digest Finder Double Digest Finder
Use this tool to guide your reaction buffer selection when setting up double-digests, a common timesaving procedure. Choosing the right buffers will help you to avoid star activity and loss of product.
DNAsequenceMapWebToolNEB DNA Sequences and Maps Tool
Use this tool to find the nucleotide sequence files for commonly used molecular biology tools, including plasmid, viral and bacteriophage vectors.
PCRFidelityEstimator_WebTool_NEB_noName PCR Fidelity Estimator
Estimate the percentage of correct DNA copies (those without base substitution errors) per cycle of PCR for selected DNA polymerases.
PCR Selector PCR Selector
Use this tool to help select the right DNA polymerase for your PCR setup. Whether your amplicon is long, complex, GC-rich or present in a single copy, the PCR selection tool will identify the perfect DNA polymerase for your reaction.
Tm Calculator Tm Calculator
Use this tool when designing PCR reaction protocols to help determine the optimal annealing temperature for your amplicon. Simply input your DNA polymerase, primer concentration and your primer sequence and the Tm Calculator will guide you to successful reaction conditions.
NEB Cutter® NEBcutter V2.0
Use this tool to identify the restriction sites within your DNA sequence. Choose between Type II and commercially available Type III restriction enzymes to digest your DNA. NEBcutter V2.0 will indicate cut frequency and methylation state sensitivity.
 NEBGoldenGate_WebTool_NEB  NEB Golden Gate Assembly Tool
Use this tool to assist with in silico DNA construct design for Golden Gate DNA assembly. It enables the accurate design of primers with appropriate type IIS restriction sites and overlaps, quick import of sequences in many formats and export of the final assembly, primers and settings.
NEBaseChanger_WebTool_NEB NEBaseChanger
NEBaseChanger can be used to design primers specific to the mutagenesis experiment you are performing using the Q5 Site-Directed Mutagenesis Kit. This tool will also calculate a recommended custom annealing temperature based on the sequence of the primers by taking into account any mismatches.
NEBnow_Locator_WebTool NEBnow Locator
Use this tool to find an NEBNow Freezer Program near you. Search by city, company or institution.
Read Coverage Calculator
This tool allows for easy calculation of values associated with read coverage in NGS protocols.

Additional Links

Use this tool as a guide to the ever-changing landscape of restriction enzymes. REBASE, the Restriction Enzyme DataBASE, is a dynamic, curated database of restriction enzymes and related proteins.
Polbase is a repository of biochemical, genetic, and structural information about DNA Polymerases.



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