---
author: Sam White
toc-title: Contents
toc-depth: 5
toc-location: left
date: 2011-02-25 23:46:32+00:00
layout: post
slug: qpcr-check-dnased-rna-bb01-for-residual-gdna-from-earlier-today-3
title: qPCR - Check DNased RNA BB01 for Residual gDNA (from earlier today)
categories:
  - 2011
  - PROPS
tags:
  - 18s
  - BB
  - CFX96
  - Crassostrea gigas
  - DNased RNA
  - Pacific oyster
  - qPCR
---

Ran qPCR on DNased RNA from earlier today to verify removal of contaminating gDNA. Used C.gigas 18s primers (SR IDs: 156, 157). 0.5uL (50ng) of DNased RNA was used for testing. This corresponds, roughly, to the amount of sample that would be carried through to qPCR analysis of cDNA, assuming 1ug of RNA was used to make the cDNA (cDNA = 1000ng RNA/25uL = 40ng/uL, 1uL of cDNA in 25uL qPCR reaction). Positive control sample was ~25ng BB16 gDNA (from [20090519](/Sam%27s+Working+Notebook+Jan-May+2009#sjw20090519)). [Master mix calcs are here](https://eagle.fish.washington.edu/Arabidopsis/Notebook%20Workup%20Files/20110225-01.jpg). Plate layout, cycling params, etc can be found in the qPCR Report (see Results). RNA was stored @ -80C in "Sam's -80C Box".

Results:

[ qPCR Report (PDF)(https://eagle.fish.washington.edu/Arabidopsis/qPCR/Roberts%20Lab_2011-02-25%2011-53-02_CC009827.pdf)

[ qPCR Data File (CFX96)(https://eagle.fish.washington.edu/Arabidopsis/qPCR/Roberts%20Lab_2011-02-25%2011-53-02_CC009827.pcrd)

Ugh. Still gDNA present in this sample. Hmmmm. Will consider starting from original RNA, but will precipitate this sample again and treat again to see if I can get rid of that cursed gDNA.