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1. blast.ncbi.nlm.nih.gov › BlastNucleotide BLAST: Align two or more sequences using BLAST

   blast.ncbi.nlm.nih.gov › Blast

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   PSI-BLAST allows the user to build a PSSM (position-specific scoring matrix) using the results of the first BlastP run. PHI-BLAST performs the search but limits alignments to those that match a pattern in the query. DELTA-BLAST constructs a PSSM using the results of a Conserved Domain Database search and searches a sequence database.

2. www.ncbi.nlm.nih.gov › BLAST › BlastNucleotide BLAST: Search nucleotide databases using a ...

   www.ncbi.nlm.nih.gov › BLAST › Blast

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   PSI-BLAST allows the user to build a PSSM (position-specific scoring matrix) using the results of the first BlastP run. PHI-BLAST performs the search but limits alignments to those that match a pattern in the query. DELTA-BLAST constructs a PSSM using the results of a Conserved Domain Database search and searches a sequence database.

3. www.ncbi.nlm.nih.gov › nucleotideHome - Nucleotide - NCBI - National Center for Biotechnology ...

   www.ncbi.nlm.nih.gov › nucleotide

   Nucleotide. The Nucleotide database is a collection of sequences from several sources, including GenBank, RefSeq, TPA and PDB. Genome, gene and transcript sequence data provide the foundation for biomedical research and discovery.

4. www.nature.com › scitable › topicpageBasic Local Alignment Search Tool (BLAST) - Nature

   www.nature.com › scitable › topicpage

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   BLAST is a computer algorithm that is available for use online at the National Center for Biotechnology Information (NCBI) website, as well as many other sites. BLAST can rapidly align and compare ...

5. blast.ncbi.nlm.nih.gov › BlastBLAST: Basic Local Alignment Search Tool

   blast.ncbi.nlm.nih.gov › Blast

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   Nov 28, 2023 · The Basic Local Alignment Search Tool (BLAST) finds regions of local similarity between sequences. The program compares nucleotide or protein sequences to sequence databases and calculates the statistical significance of matches. BLAST can be used to infer functional and evolutionary relationships between sequences as well as help identify ...

6. blast.ncbi.nlm.nih.gov › BlastNucleotide BLAST: Search nucleotide databases using a ...

   blast.ncbi.nlm.nih.gov › Blast

   • Cached

   PSI-BLAST allows the user to build a PSSM (position-specific scoring matrix) using the results of the first BlastP run. PHI-BLAST performs the search but limits alignments to those that match a pattern in the query. DELTA-BLAST constructs a PSSM using the results of a Conserved Domain Database search and searches a sequence database.

7. www.ncbi.nlm.nih.gov › tools › primer-blastPrimer designing tool - National Center for Biotechnology ...

   www.ncbi.nlm.nih.gov › tools › primer-blast

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   Maximum number of database sequences (with unique sequence identifier) Blast finds for primer-blast to screen for primer pair specificities. Note that the actual number of similarity regions (or the number of hits) may be much larger than this (for example, there may be a large number of hits on a single target sequence such as a chromosome).