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UniProtKB/Swiss-Prot variant pages

UniProtKB/Swiss-Prot Q99593: Variant p.Ser154Ala

T-box transcription factor TBX5
Gene: TBX5
Variant information Variant position: help 154 The position of the amino-acid change on the UniProtKB canonical protein sequence.
Type of variant: help LP/P [Disclaimer] The variants are classified into three categories: LP/P, LB/B and US.
  • LP/P: likely pathogenic or pathogenic.
  • LB/B: likely benign or benign.
  • US: uncertain significance

Residue change: help From Serine (S) to Alanine (A) at position 154 (S154A, p.Ser154Ala). Indicates the amino acid change of the variant. The one-letter and three-letter codes for amino acids used in UniProtKB/Swiss-Prot are those adopted by the commission on Biochemical Nomenclature of the IUPAC-IUB.
Physico-chemical properties: help Change from small size and polar (S) to small size and hydrophobic (A) The physico-chemical property of the reference and variant residues and the change implicated.
BLOSUM score: help 1 The score within a Blosum matrix for the corresponding wild-type to variant amino acid change. The log-odds score measures the logarithm for the ratio of the likelihood of two amino acids appearing by chance. The Blosum62 substitution matrix is used. This substitution matrix contains scores for all possible exchanges of one amino acid with another:
  • Lowest score: -4 (low probability of substitution).
  • Highest score: 11 (high probability of substitution).
More information can be found on the following page

Variant description: help Probable disease-associated variant found in patients with familial dilated cardiomyopathy; associated with disease susceptibility; associated with significantly decreased transcriptional activity. Any additional useful information about the variant.

Sequence information Variant position: help 154 The position of the amino-acid change on the UniProtKB canonical protein sequence.
Protein sequence length: help 518 The length of the canonical sequence.
Location on the sequence: help RLYVHPDSPATGAHWMRQLV S FQKLKLTNNHLDPFGHIILN The residue change on the sequence. Unless the variant is located at the beginning or at the end of the protein sequence, both residues upstream (20) and downstream (20) of the variant will be shown.
Sequence annotation in neighborhood: help The regions or sites of interest surrounding the variant. In general the features listed are posttranslational modifications, binding sites, enzyme active sites, local secondary structure or other characteristics reported in the cited references. The "Sequence annotation in neighborhood" lines have a fixed format:
  • Type: the type of sequence feature.
  • Positions: endpoints of the sequence feature.
  • Description: contains additional information about the feature.
Chain 1 – 518 T-box transcription factor TBX5
DNA binding 58 – 238 T-box
Beta strand 153 – 155

Literature citations
TBX5 loss-of-function mutation contributes to familial dilated cardiomyopathy.
Zhang X.L.; Qiu X.B.; Yuan F.; Wang J.; Zhao C.M.; Li R.G.; Xu L.; Xu Y.J.; Shi H.Y.; Hou X.M.; Qu X.K.; Xu Y.W.; Yang Y.Q.;
Biochem. Biophys. Res. Commun. 459:166-171(2015)
Disclaimer: Any medical or genetic information present in this entry is provided for research, educational and informational purposes only. They are not in any way intended to be used as a substitute for professional medical advice, diagnostic, treatment or care.