Propargyl-PEG14-acid

Description 

The PM5200 3-color Pre-Stained Protein Ladder Broad Range is a ready-to-use three-color protein standard with 15 pre-stained proteins covering a wide range of molecular weights from 5 to 245 kDa in Tris-Glycine Buffer (3.5 to 235 kDa in Bis-Tris (MOPS) buffer and Bis-Tris (MES) buffer). Proteins are covalently coupled with different chromophores for easy identification of bands, with three reference proteins carrying enhanced intensity corresponding to a blue band at 20 kDa, green at 40 kDa, and red at 75 kDa, respectively, as separated on SDS-PAGE (Tris-Glycine buffer). The PM5200 3-color Pre-Stained Protein Ladder Broad Range is designed for monitoring protein separation during SDS-polyacrylamide gel electrophoresis, verification of Western transfer efficiency on membranes (PVDF, nylon, or nitrocellulose) and for approximating the size of proteins.

Features

• Ready-to-use — Premixed with a loading buffer for direct loading, no need to boil.
• Three reference bands — 75 kDa (red), 40 kDa (green), and 20 kDa (blue)

Contents 

Approximately 0.1~0.4 mg/ml of each protein in the buffer (20 mM Tris-phosphate (pH 7.5 at 25°C), 2% SDS, 0.2 mM DTT, 3.6 M urea, and 15% (v/v) glycerol). 

Quality Control

Under suggested conditions, PM5200 ExcelBand™ 3-color Pre-Stained Protein Ladder Broad Range resolves 15 major bands in SDS-PAGE (Tris-Glycine, MOPS, and MES buffer) and after Western blotting to nitrocellulose membrane. 

Storage

4°C for 3 months
-20°C for long term storage 

The PM5200 3-color Pre-Stained Protein Ladder Broad Range is a ready-to-use three-color protein standard with 15 pre-stained proteins covering a wide range of molecular weights from 5 to 245 kDa in Tris-Glycine Buffer (3.5 to 235 kDa in Bis-Tris (MOPS) buffer and Bis-Tris (MES) buffer). Proteins are covalently coupled with different chromophores for easy identification of bands, with three reference proteins carrying enhanced intensity corresponding to a blue band at 20 kDa, green at 40 kDa, and red at 75 kDa, respectively, as separated on SDS-PAGE (Tris-Glycine buffer). The PM5200 3-color Pre-Stained Protein Ladder Broad Range is designed for monitoring protein separation during SDS-polyacrylamide gel electrophoresis, verification of Western transfer efficiency on membranes (PVDF, nylon, or nitrocellulose) and for approximating the size of proteins.

Efficient, leaf punch tools for quick, precise field sampling. For use with the 3CR Bio Leaf Sample Collection Kit.

About

BASIC LEAF CUTTING TOOL

The 3CR Bio Basic Leaf Cutting Tool is a lightweight, easy-to-use, low-cost punch designed for precise sampling of thin or soft materials, ideal for fieldwork. This tool is expertly designed to core, punch, and retrieve samples from thin or soft source materials such as leaves. The tool comprises a convenient, hollow plastic pen-style holder, mounted with a durable stainless steel cutting tip at one end. It features an internal push-button-operated plunger for safe and efficient sample disc ejection. The tool produces a precise ¼ inch diameter disc, making it ideal for detailed sampling tasks. For best results, clean the cutting tip between each sample extraction by coring blank filter paper or rinsing with water or ethanol. This low-cost leaf punch is lightweight, easy to use, and perfect for fieldwork.

ADVANCED LEAF CUTTING TOOL

The 3CR Bio Advanced Leaf Cutting Tool is designed to streamline and enhance your sampling process. This high-precision leaf tissue punch produces a single ¼ inch diameter disc effortlessly. It features a unique mechanism that securely holds a standard snap-top or screw-top 2 mL storage tube in a fixed position, allowing the sample to be received without any need for touching or manipulation. Ideal for fieldwork, this advanced leaf punch significantly reduces effort and time when performing multiple samplings, ensuring accuracy and efficiency in every use.

Efficient, leaf punch tools for quick, precise field sampling. For use with the 3CR Bio Leaf Sample Collection Kit.

Description

Ultrapure dUTP (2´-Deoxyuridine, 5´-Triphosphate) supplied as sodium salt in purified water (pH 8.5).  dUTP can be used in place of dTTP in PCR and RT-PCR protocols to prevent carryover from previous amplifications. The substitution of dUTP for dTTP in PCR results in uracil-containing PCR products that are suitable for most standard applications. The enzyme uracil-N-glycosylase (UNG, also referred to as UDG) can be added to a PCR premix to excise uracil from any contaminating PCR product, thereby preventing false positives. Each lot of dUTP is tested to ensure specific DNA amplification and the absence of nuclease activity. 

Features

• Ideal for PCR amplification and cDNA synthesis
• Nuclease and ribonuclease free

Applications

• PCR
• Avoid carryover contamination between PCRs to eliminate a source of false positives.

Storage

-20°C for 36 months

Ultrapure dUTP (2´-Deoxyuridine, 5´-Triphosphate) supplied as sodium salt in purified water (pH 8.5).  dUTP can be used in place of dTTP in PCR and RT-PCR protocols to prevent carryover from previous amplifications. The substitution of dUTP for dTTP in PCR results in uracil-containing PCR products that are suitable for most standard applications. The enzyme uracil-N-glycosylase (UNG, also referred to as UDG) can be added to a PCR premix to excise uracil from any contaminating PCR product, thereby preventing false positives. Each lot of dUTP is tested to ensure specific DNA amplification and the absence of nuclease activity.