Bioinformatik - Blast

The exercise was created 2022-05-31 by PopcornDidde. Question count: 9.

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  • MEGABLAST Designed for long alignments between similar sequences. Provides adjustable percent identity.
  • Blastn Finds related or similar matches to nucleotide sequence
  • Blastp Identifying query aa sequence and finding similar sequences in protein databases.
  • Psi-blast Used for finding very distantly related proteins, or new members of a protein family.
  • Phi-blast Searches with a query sequence and a user-specified pattern.
  • Blastx translates nucleotide query into all six reading frames, and uses it to search a protein database.
  • tblastn compares protein query to the six frame translations of a nucleotide database
  • tblastx translates nucleotide query into all six reading frames and compares them to a nucleotide database were all sequences are translated into all six reading frames. (nuclear option)
  • Does Blast have an MSA function? No, all the blast tools are PSA based.

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