23.11.2012 Views

Chapter 2 - University of British Columbia

Chapter 2 - University of British Columbia

Chapter 2 - University of British Columbia

SHOW MORE
SHOW LESS

You also want an ePaper? Increase the reach of your titles

YUMPU automatically turns print PDFs into web optimized ePapers that Google loves.

Figure 5.2<br />

# <strong>of</strong> copies<br />

Total copy number<br />

4<br />

2<br />

0<br />

Allele speci�c copy number<br />

3<br />

# <strong>of</strong> copies<br />

2<br />

1<br />

0<br />

(a)<br />

# <strong>of</strong> copies<br />

# <strong>of</strong> copies<br />

4<br />

2<br />

0<br />

3<br />

2<br />

1<br />

0<br />

130<br />

Total copy number<br />

Allele speci�c copy number<br />

Neutral (b) Gain (c) UPD<br />

Figure 5.2. SNP array analysis to identify areas <strong>of</strong> altered copy number and allelic<br />

composition in a clinical lung cancer specimen. Shown here are (a) a region that is copy<br />

neutral with no observed allelic imbalance and regions containing a (b) segmental gain and<br />

(c) UPD. Examining the allele specific copy number plot, the gain (in b) is likely a single<br />

copy change and the UPD event (in c) is signified by the shift in allele levels while maintaining<br />

total copy number neutral status.

Hooray! Your file is uploaded and ready to be published.

Saved successfully!

Ooh no, something went wrong!