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UniProtKB/Swiss-Prot variant pages

UniProtKB/Swiss-Prot Q5JVL4: Variant p.Asp253Tyr

EF-hand domain-containing protein 1
Gene: EFHC1
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Variant information Variant position: help 253 The position of the amino-acid change on the UniProtKB canonical protein sequence.
Type of variant: help LP/P [Disclaimer] 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 Aspartate (D) to Tyrosine (Y) at position 253 (D253Y, p.Asp253Tyr). 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 medium size and acidic (D) to large size and aromatic (Y) The physico-chemical property of the reference and variant residues and the change implicated.
BLOSUM score: help -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
Variant description: help In EJM1; reduces substantially the cell death effect; reduces partly the calcium influx; normally binds to CACNA1E; does not affect subcellular location; results in impaired cell migration. Any additional useful information about the variant.
Other resources: help Links to websites of interest for the variant.


Sequence information Variant position: help 253 The position of the amino-acid change on the UniProtKB canonical protein sequence.
Protein sequence length: help 640 The length of the canonical sequence.
Location on the sequence: help KQFLTFDKQVLRFYAIWDDT D SMYGECRTYIIHYYLMDDTV 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                         KQFLTFDKQVLRFYAIWDDTDSMYGECRTYIIHYYLMDDTV

Mouse                         KQFLTFDKQVLRFYAIWDDTDSLFGECRHYIIHYYLMDDTV

Bovine                        KQFLTFDKQVLRFYAIWDDTDSMFGECRTYIIHYYLMDDTV
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
Chain 1 – 640 EF-hand domain-containing protein 1
Domain 239 – 359 DM10 2
Alternative sequence 243 – 278 LRFYAIWDDTDSMYGECRTYIIHYYLMDDTVEIREV -> SDIGTTIGLLISKCDLHLLAKGLGSCIGNYFETLQL. In isoform 2.



Literature citations
Mutations in EFHC1 cause juvenile myoclonic epilepsy.
Suzuki T.; Delgado-Escueta A.V.; Aguan K.; Alonso M.E.; Shi J.; Hara Y.; Nishida M.; Numata T.; Medina M.T.; Takeuchi T.; Morita R.; Bai D.; Ganesh S.; Sugimoto Y.; Inazawa J.; Bailey J.N.; Ochoa A.; Jara-Prado A.; Rasmussen A.; Ramos-Peek J.; Cordova S.; Rubio-Donnadieu F.; Inoue Y.; Osawa M.; Kaneko S.; Oguni H.; Mori Y.; Yamakawa K.;
Nat. Genet. 36:842-849(2004)
Cited for: NUCLEOTIDE SEQUENCE [MRNA] (ISOFORM 2); NUCLEOTIDE SEQUENCE [MRNA] OF 557-640 (ISOFORM 1); FUNCTION; INTERACTION WITH CACNA1E; TISSUE SPECIFICITY; VARIANTS EJM1 THR-77; ASN-210; HIS-221; LEU-229 AND TYR-253; CHARACTERIZATION OF VARIANTS EJM1 THR-77; ASN-210; HIS-221; LEU-229 AND TYR-253; VARIANTS TRP-159; HIS-182 AND LEU-619; CHARACTERIZATION OF VARIANTS TRP-159; HIS-182 AND LEU-619; Mutations of EFHC1, linked to juvenile myoclonic epilepsy, disrupt radial and tangential migrations during brain development.
de Nijs L.; Wolkoff N.; Coumans B.; Delgado-Escueta A.V.; Grisar T.; Lakaye B.;
Hum. Mol. Genet. 21:5106-5117(2012)
Cited for: FUNCTION; SUBCELLULAR LOCATION; CHARACTERIZATION OF VARIANTS EJM1 ASN-210; HIS-221; LEU-229 AND TYR-253; CHARACTERIZATION OF VARIANTS TRP-159 AND LEU-619;
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.