Hybridization and Immobilization

Chia-Hsien Shih

Published: 2021-10-18 DOI: 10.17504/protocols.io.by5gpy3w

Abstract

This protocol is to assemble GotCha with circular probe, immobilization probe and magnetic beads.

Steps

Preparation

1.

Dilute immobilization probe into 10µM

Protocol of Hybridization

2.

Add 4.5µL of 1µM circular probe

3.

Add 9µLof 10X 7.4 PBS buffer

4.

Add 0.9µL of 10µM immobilization probe

5.

Add 75.6µL RNase-free water

6.

Vortex slightly and spin down

7.

Heated to 90°C for 0h 0m 30s then cool down to 90Room temperature and keep for 0h 30m 0s

Protocol of Immobilization

8.

Take 22.5µL of 10mg/ml magnetic beads into a eppendorf

9.

Vortex then spin down in Centrifuge 15000rpm

10.

Carefully take the eppendorf onto the DynaMag and wait for 0h 1m 0s to collect the beads

11.

Wash beads with 1X PBS for three times. Make sure that eppendorf should put on DynaMag when removing supernatant.

12.

Add 90µL of hybridization solution into the eppendorf with dry beads

13.

Incubate at 90Room temperature for 0h 30m 0s, then spindown in Centrifuge15000rpm

14.

Carefully take the eppendorf onto the DynaMag and wait for 0h 1m 0s to collect the beads

15.

Wash beads with 1X PBS for three times. Make sure that eppendorf should put on DynaMag when removing supernatant.

16.

Preserve the functional beads in 90µL 1X PBS

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