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UniProtKB/Swiss-Prot Q76LX8: Variant p.Ala732Val

A disintegrin and metalloproteinase with thrombospondin motifs 13
Gene: ADAMTS13
Variant information

Variant position:  732
The position of the amino-acid change on the UniProtKB canonical protein sequence.

Type of variant:  Polymorphism
The variants are classified into three categories: Disease, Polymorphism and Unclassified.
  • Disease: Variants implicated in disease according to literature reports.
  • Polymorphism: Variants not reported to be implicated in disease.
  • Unclassified: Variants with uncertain implication in disease according to literature reports. Evidence against or in favor of a pathogenic role is limited and/or conflicting.

Residue change:  From Alanine (A) to Valine (V) at position 732 (A732V, p.Ala732Val).
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:  Change from small size and hydrophobic (A) to medium size and hydrophobic (V)
The physico-chemical property of the reference and variant residues and the change implicated.

BLOSUM score:  0
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:  Genetic variations in ADAMTS13 coding region influence plasmatic ADAMTS13 activity levels. Dependent on the sequence context, the same polymorphisms might be either positive or negative modifiers of gene expression, thereby altering the phenotype of ADAMTS13 deficiency.
Additional information on the polymorphism described.

Other resources:  
Links to websites of interest for the variant.



Sequence information

Variant position:  732
The position of the amino-acid change on the UniProtKB canonical protein sequence.

Protein sequence length:  1427
The length of the canonical sequence.

Location on the sequence:   DQARKELVETVQCQGSQQPP  A WPEACVLEPCPPYWAVGDFG
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: 
The multiple alignment of the region surrounding the variant against various orthologous sequences.

Human                         DQARKELVETVQCQGSQQPPAWPEACVLEPCPPYWAVGDFG

Mouse                         DQAQDKWVKNAQCQGSPQPPAWQEPCVSAPCSPYWVAGDFS

Sequence annotation in neighborhood:  
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
Chain 75 – 1427 A disintegrin and metalloproteinase with thrombospondin motifs 13
Alternative sequence 693 – 1427 Missing. In isoform 4.


Literature citations

Mutations in a member of the ADAMTS gene family cause thrombotic thrombocytopenic purpura.
Levy G.G.; Nichols W.C.; Lian E.C.; Foroud T.; McClintick J.N.; McGee B.M.; Yang A.Y.; Siemieniak D.R.; Stark K.R.; Gruppo R.; Sarode R.; Shurin S.B.; Chandrasekaran V.; Stabler S.P.; Sabio H.; Bouhassira E.E.; Upshaw J.D. Jr.; Ginsburg D.; Tsai H.-M.;
Nature 413:488-494(2001)
Cited for: NUCLEOTIDE SEQUENCE [MRNA] (ISOFORM 1); INVOLVEMENT IN THROMBOTIC THROMBOCYTOPENIC PURPURA; VARIANTS TTP ASP-96; CYS-102; ILE-196; HIS-398; GLY-528; CYS-692; GLY-951; GLY-1024 AND TYR-1213; VARIANTS TRP-7; GLU-448; ALA-618; HIS-625; VAL-732; VAL-900 AND THR-1033;

ADAMTS13 gene defects in two brothers with constitutional thrombotic thrombocytopenic purpura and normalization of von Willebrand factor-cleaving protease activity by recombinant human ADAMTS13.
Antoine G.; Zimmermann K.; Plaimauer B.; Grillowitzer M.; Studt J.D.; Lammle B.; Scheiflinger F.;
Br. J. Haematol. 120:821-824(2003)
Cited for: VARIANT TTP TRP-1336; VARIANT VAL-732;

Modulation of ADAMTS13 secretion and specific activity by a combination of common amino acid polymorphisms and a missense mutation.
Plaimauer B.; Fuhrmann J.; Mohr G.; Wernhart W.; Bruno K.; Ferrari S.; Konetschny C.; Antoine G.; Rieger M.; Scheiflinger F.;
Blood 107:118-125(2006)
Cited for: CHARACTERIZATION OF VARIANTS TRP-7; GLU-448; ALA-618 AND VAL-732; CHARACTERIZATION OF VARIANT TTP TRP-1336; DISCUSSION OF MUTUAL MODULATORY EFFECTS OF POLYMORPHISMS;

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.