Gly-Gly-Gly-PEG4-DBCO

Overview

• Ready-to-use
• Quantitative
• Highly Stable
• Precise
• Eleven discrete fragments ranging from 50 bp to 1000 bp
• Higher intensity reference band at 500 bp

The Norgen PCR Ranger 100 bp DNA Ladder is prepared to ensure quality and batch-to-batch consistency. Our PCR Ranger DNA Ladder contains eleven discrete fragments ranging from 50 bp to 1000 bp with a higher intensity reference band at 500 bp. This Ladder is ideal for assessment of a range of PCR product sizes.

Contents
1mL of premixed DNA ladder (0.5µg/10µL) in loading buffer (10mM EDTA, 10% glycerol, 0.015% bromophenol blue, and 0.17% SDS).

Details

Supporting Data

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PCR Ranger 100 bp DNA Ladder (Cat# 11300) – 100 loads

Ladder Properties:
• Eleven discrete bands, ranging from 50 bp to 1,000 bp
• Higher intensity band at 500 bp for easy reference

Fragment	Size (bp)	Mass (ng)
1	1000	91
2	900	66
3	800	61
4	700	51
5	600	43
6	500	70
7	400	28
8	300	23
9	200	30
10	100	22
11	50	15

Recommended Use:
Mix thoroughly. For best results, load 10µL of DNA ladder per well. For precise mass determination with a densitometer, stain gel after electrophoresis using 0.5µg/mL ethidium bromide for 30-40 minutes. The table above shows the size and mass for each band based on 10µL ladder per well.

Storage: 
Stable at room temperature. For longer term storage, -20°C is recommended.

This ladder was standardized using 10µL of DNA per lane on a 0.8 cm thick, 13 x 15 cm, 1.0% agarose gel run in TAE buffer.

Introduction

Usages:
For isolating lactose-fermenting Gram-negative enteric bacilli.

Principle:
Peptones are sources of nitrogen and other nutrients. Lactose is a fermentable carbohydrate. When lactose is fermented, alocal pH drop around the colony causes a color change in the pH indicator (neutral red) and bile precipitation. Bile salts,bile salts no. 3, oxgall and crystal violet are selective agents that inhibit growth of gram-positive organisms. Agar is the solidifying agent.

Formulation（per liter）:

Pancreatic Digest of Gelatin	17.0 g
Peptones (meat and casein)	3.0 g
Lactose Monohydrate	10.0 g
Sodium Chloride	5.0 g
Bile Salts	1.5 g
Agar	13.5 g
Neutral Red	30.0 mg
Crystal Violet	1 mg
Final pH	7.1±0.2

How to use：
1.Suspend 50 g in 1 L of distilled or deionized water. Heat to boiling to dissolve completely. Autoclave at 121°C for 15 minutes.

2.Transfer 1 mL of Soybean–Casein Digest Broth to 100 mL of MacConkey Broth, and incubate at 42 to 44 for 24 to 48 hours. Subculture on a plate of MacConkey Agar at 30 to 35 deg.C for 18 to 72 hours.

Quality control：
          　　

Item	The name and number of strain	PR/G	Reaction
Growth rate	E.Coli ATCC8739	PR≥0.7	Rose-red
Characteristic difference	Proteus mirabilis CMCC(b)49005	PR≥0.7	Colorless, no swarming
Selective	Staphylococcus aureus ATCC6538	G≤1	－

Storage: Keep container tightly closed, store in a cool, dry place, away from bright light. Storage period of three years.

Specifications: 250g/bottle

250g

R-AMGR3

SKU: 700005031

200 assays per kit (4 vials)

Content:	200 assays per kit (4 vials)
Shipping Temperature:	Ambient
Storage Temperature:	Short term stability: 2-8oC, Long term stability: See individual component labels
Stability:	> 2 years under recommended storage conditions

Analyte:	Amyloglucosidase
Assay Format:	Spectrophotometer
Detection Method:	Absorbance
Wavelength (nm):	400
Limit of Detection:	~ 2.5 U/mL
Reproducibility (%):	~ 3%
Reaction Time (min):	~ 15 min

High purity Amyloglucosidase Assay Reagent – 4 vials for the measurement of amyloglucosidase, for research, biochemical enzyme assays and in vitro diagnostic analysis. 

p-Nitrophenyl β-D-maltoside plus excess β-glucosidase.

Browse our complete list of assay kits and other reagent mixtures.

High purity Amyloglucosidase Assay Reagent – 4 vials for the measurement of amyloglucosidase, for research, biochemical enzyme assays and in vitro diagnostic analysis.