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Protein Analysis Reagents

A wide variety of products for use in the study of proteins. Includes protein samples, extraction and purification products, protein modifiers, assays, dialysis supplies, gene reporter systems, cDNA, competent cells, immunohistochemistry supplies, etc.
Bioactive Small Molecules (3,223)
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1 – 15 of 5,182 results
1

Spectrum™ Spectra/Por™ 2 RC Dialysis Membrane Tubing 12,000 to 14,000 Dalton MWCO

Ideal for molecular separation, protein binding studies, electrolyte removal, desalting

EDGE
MWCO 12 to 14 kDa
Length (Metric) 15 m
Product Type Spectra/Por 2 Dialysis Tubing
Formulation Contain glycerin as a humectant
Length (English) 49.2 ft.
Quantity Each
Temperature Range (English) 39.2°F to 249.8°F
Material Regenerated Cellulose
For Use With (Application) Ideal for molecular separation, protein binding studies, electrolyte removal, desalting
Temperature Range (Metric) 4°C to 121°C
2
Promotions Available

Guanidine Hydrochloride (Colorless-to-White Crystals), Fisher BioReagents™

For isolation of RNA from cell extracts | CAS: 50-01-1 | CH6ClN3

CAS 50-01-1
Color White
Purity ≥99.5%
Physical Form Solid
Chemical Name or Material Guanidine Hydrochloride
Recommended Storage Store at Room Temperature
Synonym guanidine hydrochloride
Merck Index 15, 4597
Molecular Formula CH6ClN3
Formula Weight 95.53
Melting Point 178°C
Assay Percent Range ≥99.5%
3

Gibco™ Expi293™ Met (–) Expression Medium  DFS Item

Expi293 Met (–) Expression Medium is a cGMP-manufactured, chemically defined, serum-free, protein-free, animal origin-free, methionine-free medium for growth and transfection of Expi293F cells.

4

Invitrogen™ MC1061/P3 Chemically Competent E. coli  DFS Item

MC1061/P3 Chemically Competent E. coli are used for highly efficient transformations that require the P3 episome for selection and maintenance of vectors encoding the tyrosine tRNA suppressor (synthetic supF gene, such as pCDM8, pcDNA1.1, or any other supF-containing vector).

5

Invitrogen™ MAX Efficiency™ DH5α-T1R Competent Cells  DFS Item

MAX Efficiency DH5α T1R Phage-Resistant Competent Cells are high efficiency chemically competent cells for generating cDNA libraries and were developed to confer resistance to the lytic bacteriophages T1 and T5.

6

Invitrogen™ ElectroMAX™ DH10B T1 Phage-Resistant Competent Cells  DFS Item

ElectroMAX DH10B T1 Phage-Resistant Competent Cells offer transformation efficiencies that are among the highest we offer and can exceed 1 x 1010 cfu/μg plasmid DNA in efficiency.

7

Invitrogen™ MultiShot™ StripWell TOP10 Chemically Competent E. coli  DFS Item

MultiShot StripWell TOP10 Chemically Competent E. coli cells are ideal for high-efficiency cloning and plasmid propagation, achieving a transformation efficiency of >1 x 108 cfu/μg with control plasmid DNA in StripWell format.

Shipping Condition Dry Ice
Blue/White Screening Yes (lacZΔM15)
Cloning Methylated DNA Yes (mcrA)
Transformation Efficiency Level Medium Efficiency (1 x 108 to 1 x 109 cfu/μg)
High-throughput Compatibility High
Improves Plasmid Quality Yes (endA1)
Preparing Unmethylated DNA No
Plasmid High Copy Plasmid
Reduces Recombination Yes (recA1)
T1 Phage - Resistant (tonA) No
Antibiotic Resistance Bacterial Yes (Streptomycin)
Product Type Chemically Competent Cells
Product Line MultiShot
Contains F' Episome No
8

Invitrogen™ MultiShot™ StripWell Mach1™ T1 Phage-Resistant Chemically Competent E. coli  DFS Item

MultiShot StripWell Mach1 T1R chemically competent E. coli cells are exceptionally fast-growing cloning competent cells packaged in a rack containing 12 strips of 8 tubes for increased productivity of bacterial transformations.

9

Invitrogen™ MultiShot™ Stbl3™ Chemically Competent E. coli Cells, 96-well plate

MultiShot Stbl3 Chemically Competent E. coli Cells support cloning of unstable vectors with direct repeats. Automation-compatible 96-well format ensures high-throughput use while the Stbl3 strain minimizes recombination and maintains complex constructs.

10

Invitrogen™ MultiShot™ DH5α T1R Chemically Competent E. coli Cells, 96-well plate

MultiShot DH5α T1R Chemically Competent E. coli Cells provide reliable, high-efficiency cloning in an automation-friendly 96-well format. Ideal for high-throughput DNA manipulation and plasmid propagation using the trusted DH5α T1R strain.

11

Invitrogen™ MultiShot™ BL21(DE3) Chemically Competent E. coli Cells, FlexPlate

MultiShot BL21(DE3) Chemically Competent E. coli Cells offer high-efficiency protein expression in a flexible 96-well format. Breakable into 8-well strips, it enables convenient, scalable workflows for recombinant protein production and parallel cloning experiments.

12
Promotions Available

Invitrogen™ MegaX DH10B T1R Electrocomp™ Cells  DFS Item

MegaX DH10B T1R Electrocomp Cells are the highest-efficiency electrocompetent cells available. Improved production processes provide a transformation efficiency reaching >3 x 1010 cfu/μg of pUC DNA.

13

Invitrogen™ One Shot™ BL21(DE3)pLysE Chemically Competent E. coli  DFS Item

One Shot BL21(DE3)pLysE Chemically Competent E. coli cells are ideal for use with bacteriophage T7 promoter-based expression systems such as pRSET and pET.

14

Invitrogen™ ElectroMAX™ DH5α-E Competent Cells  DFS Item

ElectroMAX DH5α-E Competent Cells are derived from the DH5α strain and are suitable for transformation by electroporation.

15

MilliporeSigma™ Novagen™ NovaBlue Singles™ Competent Cells

NovaBlue Singles Competent Cells are designed for ultimate convenience and reliability in plasmid transformation.

Content And Storage ≤-70°C
Efficiency Guaranteed efficiency: >1.5 x 108 cfu/μg