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note - FIZ Karlsruhe

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Introduction to similarity searching<br />

Check if the sequence was uploaded correctly with D LQUE<br />

=> D L1 LQUE<br />

L1 ANSWER 1 DGENE COPYRIGHT 2010 THOMSON REUTERS on STN<br />

LQUE ATGCCAACAGATCACGAGCAGCCCTGTGGTCCCAGGCACAGGTCATTTTGCCTCAATGGGGGGATTTGTTATG<br />

TGATCCCTACTATCCCCAGCCCATTCTGTAGGTGCATTGAAAATTACACCGGAGCACGCTGCGAAGAGGTTTT<br />

TCTCCCAAGCTCCAGCATCCCAAGCGAAAGTAATCTGTCGGCAGCTTTCGTGGTGCTGGCGGTCCTCCTCACT<br />

CTTACCATCGCGGCGCTCTGCTTCCTGTGCAGGAAGGGCCACCTTCAGAGGGCCAGTTCAGTCCAGTGTGAGA<br />

TCAGCCTGGTAGAGACAAACAATACCAGAACCCGTCACAGCCACAGAGAACACTGA<br />

Conduct a BLAST search in SQN mode and keep all answers<br />

=> RUN BLAST L1 /SQN<br />

BLAST version and<br />

BLAST Version 2.2<br />

literature references<br />

are indicated before<br />

The BLAST software is used herein with permission of the National each BLAST Center search. for<br />

Biotechnology Information (NCBI) . . . .<br />

58 ANSWERS FOUND BELOW EXPECTATION VALUE OF 10.0<br />

QUERY SELF SCORE VALUE IS 690<br />

BEST ANSWER SCORE VALUE IS 690<br />

Similarity<br />

The Best Answer Score value is also<br />

Score<br />

given. In this example, there is at least<br />

690 |<br />

one perfect answer match to the query.<br />

|<br />

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The graphic representation gives a count<br />

||<br />

of hit sequences (x-axis) and similarity<br />

345 ||<br />

score (y-axis). The graph gives a visual<br />

||<br />

clue about the proportion of similar and<br />

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not so similar sequences in the answer set.<br />

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Answer Count 20 40 60 80 100<br />

ENTER EITHER THE NUMBER OF ANSWERS YOU WISH TO KEEP<br />

OR ENTER MINIMUM PERCENT OF SELF SCORE FOLLOWED BY %<br />

(BEST ANSWER PERCENTAGE OF SELF SCORE IS 100%)<br />

ENTER (ALL) OR ? :ALL<br />

L2 RUN STATEMENT CREATED<br />

L2 58 ATGCCAACAGATCACGAGCAGCCCTGTGGTCCCAGGCACAGGTCATTTTGCCTCAATGGGG<br />

GGATTTGTTATGTGATCCCTACTATCCCCAGCCCATTCTGTAGGTGCATTGAAAATTACAC<br />

CGGAGCACGCTGCGAAGAGGTTTTTCTCCCAAGCTCCAGCATCCCAAGCGAAAGTAATCTG<br />

TCGGCAGCTTTCGTGGTGCTGGCGGTCCTCCTCACTCTTACCATCGCGGCGCTCTGCTTCC<br />

TGTGCAGGAAGGGCCACCTTCAGAGGGCCAGTTCAGTCCAGTGTGAGATCAGCCTGGTAGA<br />

GACAAACAATACCAGAACCCGTCACAGCCACAGAGAACACTGA/SQN. -E 10.0<br />

Page 28 | GENESEQ on STN (DGENE) Workshop Manual<br />

The Query Self Score value is the ideal<br />

score for a perfect answer match.<br />

In this example, ALL answers are kept (L2).

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