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UniProtKB/Swiss-Prot Q14896: Variant p.Glu258Lys

Myosin-binding protein C, cardiac-type
Gene: MYBPC3
Variant information

Variant position:  258
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 Glutamate (E) to Lysine (K) at position 258 (E258K, p.Glu258Lys).
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 medium size and acidic (E) to large size and basic (K)
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

Involvement in disease:  Cardiomyopathy, familial hypertrophic 4 (CMH4) [MIM:115197]: A hereditary heart disorder characterized by ventricular hypertrophy, which is usually asymmetric and often involves the interventricular septum. The symptoms include dyspnea, syncope, collapse, palpitations, and chest pain. They can be readily provoked by exercise. The disorder has inter- and intrafamilial variability ranging from benign to malignant forms with high risk of cardiac failure and sudden cardiac death. {ECO:0000269|PubMed:11499718, ECO:0000269|PubMed:11499719, ECO:0000269|PubMed:11815426, ECO:0000269|PubMed:12379228, ECO:0000269|PubMed:12628722, ECO:0000269|PubMed:12707239, ECO:0000269|PubMed:12818575, ECO:0000269|PubMed:12951062, ECO:0000269|PubMed:12974739, ECO:0000269|PubMed:14563344, ECO:0000269|PubMed:15114369, ECO:0000269|PubMed:15519027, ECO:0000269|PubMed:15563892, ECO:0000269|PubMed:16004897, ECO:0000269|PubMed:16199542, ECO:0000269|PubMed:18403758, ECO:0000269|PubMed:18929575, ECO:0000269|PubMed:18957093, ECO:0000269|PubMed:23840593, ECO:0000269|PubMed:28265379, ECO:0000269|PubMed:7744002, ECO:0000269|PubMed:9048664, ECO:0000269|PubMed:9541104, ECO:0000269|PubMed:9541115, ECO:0000269|PubMed:9562578}. 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 CMH4.
Any additional useful information about the variant.

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

Sequence information

Variant position:  258
The position of the amino-acid change on the UniProtKB canonical protein sequence.

Protein sequence length:  1274
The length of the canonical sequence.

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.

Chain 1 – 1274 Myosin-binding protein C, cardiac-type
Modified residue 275 – 275 Phosphoserine; by PKA and PKC

Literature citations

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;

Hypertrophic cardiomyopathy: distribution of disease genes, spectrum of mutations, and implications for a molecular diagnosis strategy.
Richard P.; Charron P.; Carrier L.; Ledeuil C.; Cheav T.; Pichereau C.; Benaiche A.; Isnard R.; Dubourg O.; Burban M.; Gueffet J.-P.; Millaire A.; Desnos M.; Schwartz K.; Hainque B.; Komajda M.;
Circulation 107:2227-2232(2003)
Cited for: VARIANTS CMH4 PRO-257; LYS-258; GLU-278; ALA-279; PRO-352; TRP-502; LYS-504 DEL; GLN-542; ARG-811; VAL-833; THR-1194 AND THR-1255; VARIANTS GLN-326 AND MET-896;

Mutation spectrum in a large cohort of unrelated consecutive patients with hypertrophic cardiomyopathy.
Erdmann J.; Daehmlow S.; Wischke S.; Senyuva M.; Werner U.; Raible J.; Tanis N.; Dyachenko S.; Hummel M.; Hetzer R.; Regitz-Zagrosek V.;
Clin. Genet. 64:339-349(2003)
Cited for: VARIANTS CMH4 LYS-258; TRP-282; ARG-507; TRP-523; ARG-566; PRO-668; VAL-833 AND ILE-1115; VARIANTS GLY-236 AND GLN-326;

The 2373insG mutation in the MYBPC3 gene is a founder mutation, which accounts for nearly one-fourth of the HCM cases in the Netherlands.
Alders M.; Jongbloed R.; Deelen W.; van den Wijngaard A.; Doevendans P.; Ten Cate F.; Regitz-Zagrosek V.; Vosberg H.-P.; van Langen I.; Wilde A.; Dooijes D.; Mannens M.;
Eur. Heart J. 24:1848-1853(2003)
Cited for: VARIANTS CMH4 SER-161; LYS-258; ASN-605; THR-833; TRP-834 AND THR-1131;

Genetic and phenotypic characterization of mutations in myosin-binding protein C (MYBPC3) in 81 families with familial hypertrophic cardiomyopathy: total or partial haploinsufficiency.
Andersen P.S.; Havndrup O.; Bundgaard H.; Larsen L.A.; Vuust J.; Pedersen A.K.; Kjeldsen K.; Christiansen M.;
Eur. J. Hum. Genet. 12:673-677(2004)
Cited for: VARIANTS CMH4 ASN-228; LYS-258; LYS-813 DEL AND THR-833;

Myosin binding protein C mutations and compound heterozygosity in hypertrophic cardiomyopathy.
Van Driest S.L.; Vasile V.C.; Ommen S.R.; Will M.L.; Tajik A.J.; Gersh B.J.; Ackerman M.J.;
J. Am. Coll. Cardiol. 44:1903-1910(2004)
Cited for: VARIANTS CMH4 ARG-5; LEU-219; ILE-256; LYS-258; HIS-458; ARG-490; GLN-495; TRP-502; GLN-542; VAL-604; ASN-605; LEU-608; CYS-733; ASN-770; ARG-792; HIS-810; LYS-811 DEL; THR-833; GLU-998; ARG-998; ILE-1113 AND THR-1131; VARIANTS MET-158; GLY-236; GLN-326; TRP-382; SER-416; ARG-507; MET-545 AND MET-896;

Mutations profile in Chinese patients with hypertrophic cardiomyopathy.
Song L.; Zou Y.; Wang J.; Wang Z.; Zhen Y.; Lou K.; Zhang Q.; Wang X.; Wang H.; Li J.; Hui R.;
Clin. Chim. Acta 351:209-216(2005)
Cited for: VARIANTS CMH4 LYS-258; ARG-263; SER-417; HIS-669 AND ASP-759;

Adverse events in families with hypertrophic or dilated cardiomyopathy and mutations in the MYBPC3 gene.
Ehlermann P.; Weichenhan D.; Zehelein J.; Steen H.; Pribe R.; Zeller R.; Lehrke S.; Zugck C.; Ivandic B.T.; Katus H.A.;
BMC Med. Genet. 9:95-95(2008)
Cited for: VARIANTS CMH4 LYS-258; CYS-272; VAL-336; GLN-495; GLN-502; SER-957 AND ILE-958;

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.