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UniProtKB/Swiss-Prot O75197: Variant p.Gly171Val

Low-density lipoprotein receptor-related protein 5
Gene: LRP5
Chromosomal location: 11q13.4
Variant information

Variant position:  171
The position of the amino-acid change on the UniProtKB canonical protein sequence.

Type of variant:  Disease [Disclaimer]
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 Glycine (G) to Valine (V) at position 171 (G171V, p.Gly171Val).
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 glycine (G) to medium size and hydrophobic (V)
The physico-chemical property of the reference and variant residues and the change implicated.

BLOSUM score:  -3
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

Involvement in disease:  High bone mass trait (HBM) [MIM:601884]: Rare phenotype characterized by exceptionally dense bones. HBM individuals show otherwise a completely normal skeletal structure and no other unusual clinical findings. {ECO:0000269|PubMed:11741193, ECO:0000269|PubMed:12015390, ECO:0000269|PubMed:15143163, ECO:0000269|PubMed:15824861, ECO:0000269|PubMed:17295608}. Note=The disease is caused by mutations affecting the gene represented in this entry.
The name and a short description of the disease associated with the variant. For more information about the disease, the user can refer to OMIM, following the link provided after the disease acronym.

Variant description:  In HBM; also in HBM individuals with enlarged mandible and torus palatinus; abolishes interaction with MESD; impairs transport to cell surface; no enhancement of DKK1 binding by MESD resulting in impaired inhibition of Wnt signaling by DKK1.
Any additional useful information about the variant.

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



Sequence information

Variant position:  171
The position of the amino-acid change on the UniProtKB canonical protein sequence.

Protein sequence length:  1615
The length of the canonical sequence.

Location on the sequence:   DQPRAIALDPAHGYMYWTDW  G ETPRIERAGMDGSTRKIIVD
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                         DQPRAIALDPAHGYMYWTDWGETPRIERAGMDGSTRKIIVD

Mouse                         DQPRAIALDPAHGYMYWTDWGEAPRIERAGMDGSTRKIIVD

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 32 – 1615 Low-density lipoprotein receptor-related protein 5
Topological domain 32 – 1384 Extracellular
Repeat 163 – 206 LDL-receptor class B 3
Region 32 – 288 Beta-propeller 1


Literature citations

A cell-based Dkk1 binding assay reveals roles for extracellular domains of LRP5 in Dkk1 interaction and highlights differences between wild-type and the high bone mass mutant LRP5(G171V).
Murrills R.J.; Matteo J.J.; Bhat B.M.; Coleburn V.E.; Allen K.M.; Chen W.; Damagnez V.; Bhat R.A.; Bex F.J.; Bodine P.V.;
J. Cell. Biochem. 108:1066-1075(2009)
Cited for: INTERACTION WITH DKK1 AND MESD; CHARACTERIZATION OF VARIANT VAL-171;

The LRP5 high-bone-mass G171V mutation disrupts LRP5 interaction with Mesd.
Zhang Y.; Wang Y.; Li X.; Zhang J.; Mao J.; Li Z.; Zheng J.; Li L.; Harris S.; Wu D.;
Mol. Cell. Biol. 24:4677-4684(2004)
Cited for: INTERACTION WITH MESD; CHARACTERIZATION OF VARIANT HBM VAL-171;

A mutation in the LDL receptor-related protein 5 gene results in the autosomal dominant high-bone-mass trait.
Little R.D.; Carulli J.P.; Del Mastro R.G.; Dupuis J.; Osborne M.; Folz C.; Manning S.P.; Swain P.M.; Zhao S.-C.; Eustace B.; Lappe M.M.; Spitzer L.; Zweier S.; Braunschweiger K.; Benchekroun Y.; Hu X.; Adair R.; Chee L.; FitzGerald M.G.; Tulig C.; Caruso A.; Tzellas N.; Bawa A.; Franklin B.; McGuire S.; Nogues X.; Gong G.; Allen K.M.; Anisowicz A.; Morales A.J.; Lomedico P.T.; Recker S.M.; Van Eerdewegh P.; Recker R.R.; Johnson M.L.;
Am. J. Hum. Genet. 70:11-19(2002)
Cited for: VARIANT HBM VAL-171; POLYMORPHISM;

High bone density due to a mutation in LDL-receptor-related protein 5.
Boyden L.M.; Mao J.; Belsky J.; Mitzner L.; Farhi A.; Mitnick M.A.; Wu D.; Insogna K.; Lifton R.P.;
N. Engl. J. Med. 346:1513-1521(2002)
Cited for: VARIANT HBM VAL-171; CHARACTERIZATION OF VARIANT HBM VAL-171;

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.