Product Description

Bingene Colorimetric LAMP Kit is designed to provide a one-step solution for Loop-Mediated Isothermal Amplification (LAMP) of DNA and an equipment-free examination of the amplification results with naked eyes. It has the following features：

Optimized LAMP mix, contains colorimetric dyes that enables the examination of LAMP results with naked eyes.

4× concentration LAMP mix allows larger in-put sample volumes than 2× concentration mix, which can increase the sensitivity of the test.

High amplification efficiency, generally an order of magnitude more sensitive than PCR.

Isothermal amplification around 65°C, no need for expensive thermal cycling instruments.

Template-primer mix supplied as LAMP positive control, eliminates false negative results.

CAT#211221-50 is sufficient for 50 reactions of 20μL volume, and CAT#211221-500 for 500 reactions of 20μL volume.

Input Sample Requirements

Perform DNA purification with a positive and a negative control. For a sample number of N, perform N+2 purifications. For the two additional purifications，one is for positive control and another negative control.

Kit Contents

Component	CAT#:211221-50	CAT#:211221-500
4×Colorimetric LAMP Mix	200μL	1mL
Bst DNA Polymerase 2.0	50μL	250μL
Template-primer Mix	50μL	250μL

Storage and Handling

Store the kit at -20°C. The kit is stable for at least one year from date of receipt.

Required Materials not Supplied

No	Item
1	Prepared DNA Samples
2	LAMP primers targeting DNA samples
3	Reaction vessels compatible with instrument for LAMP
4	Molecular biology grade ddH2O
5	Paraffin oil, molecular biology grade
6	Heat block, water bath or PCR machine

Procedural Guidelines

Perform all steps at room temperature (20–25°C) unless otherwise noted.

Regularly de-contaminate working areas and equipment using chlorine bleach to avoid potential carryover contamination.

Avoid opening reaction vessels after a LAMP reaction is completed. But if agarose gel electrophoresis or other post-reaction analysis is desired, perform the analysis in a separated room.

Screening at least 10 sets of LAMP primers for optimal sensitivity and specificity before choosing a final set.

Use Loop primers if possible.

Primers should be HPLC purified.

Procedures

Make 20×Primer Mix. Use appropriate amount of ddH2O to dissolve the HPLC-purified LAMP primers at 100μM each. Use the 100μM stocks to make 100μL 20×Primer Mix according to the following table. If volumes other than 100μL (50μL, 200μL etc.) is desired, adjust volumes accordingly.

Components to add	Volume to add	Final Concentration in 20×Primer Mix
100μM FIP	32μL	32 μM
100μM BIP	32μL	32 μM
100μM Loop F	4μL	8 μM
100μM Loop B	4μL	8 μM
100μM F3	2μL	4 μM
100μM B3	2μL	4 μM
ddH2O	24μL	-

Thaw all components to be used at room temperature. Vortex briefly 4×Colorimetric LAMP Mix and Template-primer Mix. Centrifuge to collect material and place on ice. Don’t vortex Bst DNA polymerase 2.0.

When using the kit for the first time, add all Bst DNA polymerase 2.0 to 4×Colorimetric LAMP Mix and gently invert the tube for one minute to mix thoroughly.

For a purification number of N+2, set up N+4 LAMP reactions as described below. Volumes listed are for 20μL reaction. For the two additional reactions, one is for LAMP Positive Control (PC) and another for LAMP Negative Control (NC) .

	PC	NC	N+2
4×Colorimetric LAMP Mix	5μL	5μL	5μL each
20×Primer Mix	1μL	1μL	1μL each
Template-primer Mix	5μL
N+2 samples			1-14μL each
ddH2O	9μL	14μL	Add to 20μL

Add 30μL paraffin oil if heat block, water bath is used as incubator. If a PCR machine is used as incubator, turn on the heat lid.

Seal reaction vessels.

Incubate at 65°C for 60 minutes.

Remove tubes or vessels from incubation and examine by eye. Positive reactions will have turned green while negative controls should turn light green. If color difference is not obvious, allow reaction to cool at room temperature.

If there is amplification in NC or there is no amplification in PC，the whole experiment is invalid. There is no need to analysis the results of the N+2 samples. Refer to Troubleshooting section.

If there is no amplification in NC or there is amplification in PC，the whole experiment is valid. Analyze and record he results of the N+2 samples. The result can be photographed or scanned to record the colorimetric results.

Troubleshooting

There is amplification in NC.
1. This result suggests possible carryover contamination in working environment and/or reagents. To avoid carryover contamination, clean working areas and equipment using a 10% chlorine bleach solution, use new (un-contaminated) reagents, primer stocks, water, etc., use UNG-LAMP Kit, perform experiments in a new (un-contaminated) room.
2. This result also suggests nonspecific amplification. To avoid nonspecific amplification, do amplification at temperature of 65°C -70°C，put the reaction tubes to 65°C as soon as the reaction is set，use a new set of primer for the targeted DNA region.

There is no amplification in PC
1. This result suggests failures in machine or reagents，use new machine or new set of reagents.

Limited Product Warranty

Bingene，Inc. warrants its products as set forth in the Bingene’s General Terms and Conditions of Sale at www.tiandzusa.com. If you have any questions, please contact Bingene @ www.bingene.com.

The information in this guide is subject to change without notice.

DISCLAIMER: TO THE EXTENT ALLOWED BY LAW, BINGENE INC. WILL NOT BE LIABLE FOR SPECIAL, INCIDENTAL, INDIRECT, PUNITIVE, MULTIPLE, OR CONSEQUENTIAL DAMAGES IN CONNECTION WITH OR ARISING FROM THIS DOCUMENT, INCLUDING YOUR USE OF IT.