Cited by 6,521Genomics and Rare DiseasesGenomics and Phylogenetic StudiesGenetic Associations and Epidemiology

Predicting the effects of coding non-synonymous variants on protein function using the SIFT algorithm

Kumar, Prateek, Henikoff, Steven, Ng, Pauline C·2009·Nature Protocols

Abstract

The effect of genetic mutation on phenotype is of significant interest in genetics. The type of genetic mutation that causes a single amino acid substitution (AAS) in a protein sequence is called a non-synonymous single nucleotide polymorphism (nsSNP). An nsSNP could potentially affect the function of the protein, subsequently altering the carrier's phenotype. This protocol describes the use of the 'Sorting Tolerant From Intolerant' (SIFT) algorithm in predicting whether an AAS affects protein function. To assess the effect of a substitution, SIFT assumes that important positions in a protein sequence have been conserved throughout evolution and therefore substitutions at these positions may affect protein function. Thus, by using sequence homology, SIFT predicts the effects of all possible substitutions at each position in the protein sequence. The protocol typically takes 5-20 min, depending on the input. SIFT is available as an online tool (http://sift.jcvi.org).

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Crossref · 10.1038/nprot.2009.86

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Authors
Kumar, P., Henikoff, S., & Ng, P. C.
Affiliations
  • J. Craig Venter Institute (US)
  • Howard Hughes Medical Institute (US)
Corresponding author
Ng, Pauline C
Venue
Nature Protocols
Published
2009-06-25
Volume
4
Issue
7
Pages
1073-1081
ISSN
  • 1750-2799 (ISSN-L)
  • 1754-2189
OpenAlex
W1980740976
Cited by
6,521
References
1
Citations by year
2026: 116 · 2025: 172 · 2024: 275 · 2023: 260 · 2022: 353 · 2021: 415 · 2020: 471 · 2019: 555 · 2018: 636 · 2017: 606 · 2016: 638 · 2015: 612 · 2014: 495 · 2013: 428 · 2012: 279
FWCI
94.57
Type
journal article
Language
en
Open access
closed
Locations
  • Nature Protocols (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • Menzies School of Health Research
  • National Human Genome Research Institute (R01HG004701)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Genomics and Rare Diseases
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Genomics and Phylogenetic Studies
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Genetic Associations and Epidemiology
Keywords
SIFT algorithm, non-synonymous single nucleotide polymorphisms, amino acid substitutions, protein function prediction, sequence conservation, sequence homology, genetic mutations
MeSH terms
Algorithms, Amino Acid Sequence, Computer Simulation, Molecular Sequence Data, Phenotype, Proteins, Software, Amino Acid Substitution, Internet

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