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Method Detail
Submitter Method Handle: BCM_SSAHASNP
Submitter Method ID: BCM_HTWD_SNPS_200310
Submitted method description:
We aligned 124,520 human reads, available at http://www.ncbi.nih.gov/Traces, to build34 of the human genome, available at ftp://ftp.ncbi.nih.gov/genomes/H_sapiens/, using ssahaSNP. The settings for ssahaSNP were such that the candidate SNP base in the rea
d was at least Phred Q=23, that its neighbouring 5 bases on either side of the candidate SNP all had Phred quality values of >=15 and at least 9 of the 10 neighbours match. If the number of detected SNPs for the aligned segment of a read exceeded a rate o
f 15 SNPs per 1000 bases then that read alignment was ignored. If a read aligned to more than one place in the genome, then only the longest alignment with the fewest SNPs was reported.
Chromosome 16 specific sequencing libaries were created from the flow sorted Coriell DNA NA17109 (African-American origin) at the Wellcome Trust Sanger Institute. Trace data was generated by Human Genome Sequencing Center, Baylor College of Medicine thro
ugh a grant from NIH. This SNP analysis was performed with permission from BCM.
Note: Flow sorting of chromosomes also includes a small percentage of unintended chromosomal material. Therefore some reads for this flow sorted library may generate SNPs on other chromosomes.

This method was used in the following submission:

Submitter Handle Batch Type Submitter batch id Release build id
BCM_SSAHASNP Assay BCM_HTWD_SNPS_200310 118
BCM_SSAHASNP Assay BCM_HTWD_SNPS_200403 121

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