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Investigative Techniques > Epidemiologic Methods > Statistics as Topic > Probability > Position-Specific Scoring Matrices
... > Health Occupations > Medicine > Public Health > Epidemiologic Methods > Statistics as Topic > Probability > Position-Specific Scoring Matrices
... > Population Characteristics > Health > Public Health > Epidemiologic Methods > Statistics as Topic > Probability > Position-Specific Scoring Matrices
... > Environment and Public Health > Public Health > Epidemiologic Methods > Statistics as Topic > Probability > Position-Specific Scoring Matrices
... > Health Care Quality, Access, and Evaluation > Quality of Health Care > Health Care Evaluation Mechanisms > Statistics as Topic > Probability > Position-Specific Scoring Matrices
... > Health Occupations > Health Services Administration > Quality of Health Care > Health Care Evaluation Mechanisms > Statistics as Topic > Probability > Position-Specific Scoring Matrices
Natural Science Disciplines > Mathematics > Statistics as Topic > Probability > Position-Specific Scoring Matrices
Mathematical Concepts > Probability > Position-Specific Scoring Matrices
Investigative Techniques > Genetic Techniques > Sequence Analysis > Position-Specific Scoring Matrices
... > Chemical Phenomena > Biochemical Phenomena > Molecular Structure > Conserved Sequence > Consensus Sequence > Position-Specific Scoring Matrices

Preferred term

Position-Specific Scoring Matrices  

Type

  • mesh:Descriptor

Definition

  • Tabular numerical representations of sequence motifs displaying their variability as likelihood values for each possible residue at each position in a sequence. Position-specific scoring matrices (PSSMs) are calculated from position frequency matrices. A graph of the data from a position weight matrix using the letters of the residues drawn in a size that corresponds to their likelihood in the sequence. It is an alternative representation of the CONSENSUS SEQUENCE, including more information, specifically, the information about the less frequently occurring residues as well as the most frequently occurring residues. The tabular notation of the count per position of each potential residue as observed from an aligned set of sequences.

Broader concept

Synonym(s)

  • Position-Specific Scoring Matrix
  • Position-Specific Weight Matrices
  • Position-Specific Weight Matrix
  • Position Weight Matrices
  • Position Weight Matrix

In other languages

  • Matrices de scores

    French

  • Matrice de poids
  • Matrice poids-position
  • Matrice PSSM
  • Matrice score-position
  • Matrices de pondération

URI

http://data.loterre.fr/ark:/67375/JVR-LHJ5GKH0-3

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RDF/XML TURTLE JSON-LD Created 7/6/09, last modified 7/17/09