The cDNA microarray contained 702 chromosome 16q specific cDNA clones and 2000 cDNAs from the entire genome printed in quadruplicate.
Three hundred ng test and reference DNA were hybridized to an array containing approximately 30,000 DNA oligos spread across the whole genome printed on Codelink activated slides (Amersham Biosciences, Barcelona, Spain).
Again, genome-prints tell us more than the mere facts of genomic bigness.
I hadn't thought of genomes as being something that could leave a direct, physical mark, a genome-print.
Genomic alterations were evaluated according to the Genome Alteration Print (GAP) methodology [ 20].
Copy number alteration (CNA), loss-of-heterozygosity (LOH), copy number neutral allelic imbalance (CNN-AI), subclonal CNA and patterns of tumor DNA ploidy were analyzed using bioinformatical methods such as genomic identification of significant targets in cancer (GISTIC) and genome alteration print (GAP).
Genome alteration print (GAP) of (A) AW8507, (B) AW13516, (C) NT8e AND (D) OT9 cell lines obtained by SNP array.
Also, the displayed segmentation model could be used for further analyses such as survival regression or plotting a genome alteration print (Popova et al., 2009).
The absolute copy number and genotype status of the segments were then determined using the genome alteration print (GAP) method [ 15].
For example, to construct a genome alteration print, Popova et al. (2009) require a good segmentation algorithm: 'the absence of true breakpoints could significantly alter the GAP pattern'.
To view and analyze single nucleotide polymorphism (SNP) and comparative genomic hybridization (CGH) array alteration data tools and methods such as VAMP [ 27] and waviCGH [ 28] are options based on web technologies, whereas Genome Alteration Print [ 29] is a desktop application.
