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UniProtKB/Swiss-Prot variant pages

UniProtKB/Swiss-Prot P01137: Variant p.Arg25Pro

Transforming growth factor beta-1 proprotein
Gene: TGFB1
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Variant information Variant position: help 25 The position of the amino-acid change on the UniProtKB canonical protein sequence.
Type of variant: help LB/B 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 Arginine (R) to Proline (P) at position 25 (R25P, p.Arg25Pro). 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 large size and basic (R) to medium size and hydrophobic (P) The physico-chemical property of the reference and variant residues and the change implicated.
BLOSUM score: help -2 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

Polymorphism: help In post-menopausal Japanese women, the frequency of Leu-10 is higher in subjects with osteoporosis than in controls. Additional information on the polymorphism described.
Other resources: help Links to websites of interest for the variant.


Sequence information Variant position: help 25 The position of the amino-acid change on the UniProtKB canonical protein sequence.
Protein sequence length: help 390 The length of the canonical sequence.
Location on the sequence: help GLRLLPLLLPLLWLLVLTPG R PAAGLSTCKTIDMELVKRKR 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.
Residue conservation: help The multiple alignment of the region surrounding the variant against various orthologous sequences.
Human                         GLRLLPLLLPLLWLLVLTPGRPAAGLSTCKTIDMELVKRKR

                              GLRLLPLLLPLLRLLVLTPGRPAAGLSTCKTIDMELVKRKR

Mouse                         GLRLLPLLLPLPWLLVLTPGRPAAGLSTCKTIDMELVKRKR

Rat                           GLRLLPLLLPLPWLLVLTPGRPAAGLSTCKTIDMELVKRKR

Pig                           GLRLLPLLLPLLWLLVLTPGRPAAGLSTCKTIDMELVKRKR

Bovine                        GLRLLPLLLPLLWLLMLTPGRPVAGLSTCKTIDMELVKRKR

Sheep                         GLRLLPLLLPLLWLLMLTPGRPVAGLSTCKTIDMELVKRKG

Horse                         GLRLLPLLLPLLWLLVLTPGRPAAGLSTCKTIDMELVKRKR

Chicken                       ---------PLLALLLLLGA--ARALSTCQRLDLEAAKKKR

Xenopus laevis                ----MEVLWMLLVLLVLHLSSLAMSLSTCKAVDMEEVRKRR

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.
TypePositionsDescription
Signal peptide 1 – 29
Disulfide bond 33 – 33 Interchain (with C-1359 or C-1384 in LTBP1); in inactive form
Mutagenesis 33 – 33 C -> S. Abolishes interchain disulfide bond with LTBP1 and/or LRRC32, and subsequent regulation of activation of TGF-beta-1.



Literature citations
Human transforming growth factor-beta complementary DNA sequence and expression in normal and transformed cells.
Derynck R.; Jarrett J.A.; Chen E.Y.; Eaton D.H.; Bell J.R.; Assoian R.K.; Roberts A.B.; Sporn M.B.; Goeddel D.V.;
Nature 316:701-705(1985)
Cited for: NUCLEOTIDE SEQUENCE [MRNA]; VARIANTS LEU-10 AND PRO-25;
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.