UniProtKB/Swiss-Prot Q14896: Variant p.Arg820Gln

• Variant information
• Sequence information
• Literature citations
• All

Variant information

Variant position: 820 The position of the amino-acid change on the UniProtKB canonical protein sequence.
Type of variant: LP/P [Disclaimer: Variants classification is intended for research purposes only, not for clinical and diagnostic use. The label disease variant is assigned according to literature reports on probable disease-association that can be based on theoretical reasons. This label must not be considered as a definitive proof for the pathogenic role of a variant.] 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: From Arginine (R) to Glutamine (Q) at position 820 (R820Q, p.Arg820Gln). 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 large size and basic (R) to medium size and polar (Q) The physico-chemical property of the reference and variant residues and the change implicated.
BLOSUM score: 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: In CMH4. Any additional useful information about the variant.
Other resources: Links to websites of interest for the variant.

• Variant rs2856655 [ dbSNP | Ensembl ]

Sequence information

Variant position: 820 The position of the amino-acid change on the UniProtKB canonical protein sequence.
Protein sequence length: 1274 The length of the canonical sequence.
Location on the sequence: GQPILGYILERKKKKSYRWM R LNFDLIQELSHEARRMIEGV 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: 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.

Type	Positions	Description
Chain	1 – 1274	Myosin-binding protein C, cardiac-type
Domain	774 – 870	Fibronectin type-III 1

Literature citations

Phosphorylation switches specific for the cardiac isoform of myosin binding protein-C: a modulator of cardiac contraction?
Gautel M.; Zuffardi O.; Freiburg A.; Labeit S.;
EMBO J. 14:1952-1960(1995)
Cited for: NUCLEOTIDE SEQUENCE [MRNA]; VARIANT CMH4 GLN-820; Organization and sequence of human cardiac myosin binding protein C gene (MYBPC3) and identification of mutations predicted to produce truncated proteins in familial hypertrophic cardiomyopathy.
Carrier L.; Bonne G.; Bahrend E.; Yu B.; Richard P.; Niel F.; Hainque B.; Cruaud C.; Gary F.; Labeit S.; Bouhour J.-B.; Dubourg O.; Desnos M.; Hagege A.A.; Trent R.J.; Komajda M.; Fiszman M.; Schwartz K.;
Circ. Res. 80:427-434(1997)
Cited for: NUCLEOTIDE SEQUENCE [GENOMIC DNA]; VARIANTS CMH4 GLN-542 AND GLN-820; Hypertrophic cardiomyopathy: two homozygous cases with 'typical' hypertrophic cardiomyopathy and three new mutations in cases with progression to dilated cardiomyopathy.
Nanni L.; Pieroni M.; Chimenti C.; Simionati B.; Zimbello R.; Maseri A.; Frustaci A.; Lanfranchi G.;
Biochem. Biophys. Res. Commun. 309:391-398(2003)
Cited for: VARIANTS CMH4 LYS-258; HIS-810; GLN-820 AND HIS-873; A novel missense mutation in the myosin binding protein-C gene is responsible for hypertrophic cardiomyopathy with left ventricular dysfunction and dilation in elderly patients.
Konno T.; Shimizu M.; Ino H.; Matsuyama T.; Yamaguchi M.; Terai H.; Hayashi K.; Mabuchi T.; Kiyama M.; Sakata K.; Hayashi T.; Inoue M.; Kaneda T.; Mabuchi H.;
J. Am. Coll. Cardiol. 41:781-786(2003)
Cited for: VARIANT CMH4 GLN-820;