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UniProtKB/Swiss-Prot variant pages

UniProtKB/Swiss-Prot Q15878: Variant p.Ile1422Phe

Voltage-dependent R-type calcium channel subunit alpha-1E
Gene: CACNA1E
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Variant information Variant position: help 1422 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 Isoleucine (I) to Phenylalanine (F) at position 1422 (I1422F, p.Ile1422Phe). 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 hydrophobic (I) to large size and aromatic (F) The physico-chemical property of the reference and variant residues and the change implicated.
BLOSUM score: help 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
Variant description: help In DEE69. Any additional useful information about the variant.


Sequence information Variant position: help 1422 The position of the amino-acid change on the UniProtKB canonical protein sequence.
Protein sequence length: help 2313 The length of the canonical sequence.
Location on the sequence: help FYVVYFVVFPFFFVNIFVAL I IITFQEQGDKMMEECSLEKN 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                         FYVVYFVVFPFFFVNIFVALIIITFQEQGDKMMEECSLEKN

Mouse                         FYVVYFVVFPFFFVNIFVALIIITFQEQGDKMMEECSLEKN

Rat                           FYVVYFVVFPFFFVNIFVALIIITFQEQGDKMMEECSLEKN

Rabbit                        FYVVYFVVFPFFFVNIFVALIIITFQEQGDKMMEECSLEKN
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 – 2313 Voltage-dependent R-type calcium channel subunit alpha-1E
Transmembrane 1399 – 1422 Helical; Name=S6 of repeat III
Repeat 1140 – 1426 III
Helix 1413 – 1424



Literature citations
De novo pathogenic variants in CACNA1E cause developmental and epileptic encephalopathy with contractures, macrocephaly, and dyskinesias.
Helbig K.L.; Lauerer R.J.; Bahr J.C.; Souza I.A.; Myers C.T.; Uysal B.; Schwarz N.; Gandini M.A.; Huang S.; Keren B.; Mignot C.; Afenjar A.; Billette de Villemeur T.; Heron D.; Nava C.; Valence S.; Buratti J.; Fagerberg C.R.; Soerensen K.P.; Kibaek M.; Kamsteeg E.J.; Koolen D.A.; Gunning B.; Schelhaas H.J.; Kruer M.C.; Fox J.; Bakhtiari S.; Jarrar R.; Padilla-Lopez S.; Lindstrom K.; Jin S.C.; Zeng X.; Bilguvar K.; Papavasileiou A.; Xing Q.; Zhu C.; Boysen K.; Vairo F.; Lanpher B.C.; Klee E.W.; Tillema J.M.; Payne E.T.; Cousin M.A.; Kruisselbrink T.M.; Wick M.J.; Baker J.; Haan E.; Smith N.; Sadeghpour A.; Davis E.E.; Katsanis N.; Corbett M.A.; MacLennan A.H.; Gecz J.; Biskup S.; Goldmann E.; Rodan L.H.; Kichula E.; Segal E.; Jackson K.E.; Asamoah A.; Dimmock D.; McCarrier J.; Botto L.D.; Filloux F.; Tvrdik T.; Cascino G.D.; Klingerman S.; Neumann C.; Wang R.; Jacobsen J.C.; Nolan M.A.; Snell R.G.; Lehnert K.; Sadleir L.G.; Anderlid B.M.; Kvarnung M.; Guerrini R.; Friez M.J.; Lyons M.J.; Leonhard J.; Kringlen G.; Casas K.; El Achkar C.M.; Smith L.A.; Rotenberg A.; Poduri A.; Sanchis-Juan A.; Carss K.J.; Rankin J.; Zeman A.; Raymond F.L.; Blyth M.; Kerr B.; Ruiz K.; Urquhart J.; Hughes I.; Banka S.; Hedrich U.B.S.; Scheffer I.E.; Helbig I.; Zamponi G.W.; Lerche H.; Mefford H.C.;
Am. J. Hum. Genet. 103:666-678(2018)
Cited for: FUNCTION; INVOLVEMENT IN DEE69; VARIANTS DEE69 PRO-228; ARG-348; ARG-352; LEU-603; ASP-690; SER-698; THR-700; VAL-701; PRO-702; THR-702; 829-ARG--CYS-2313 DEL; 1389-ARG--CYS-2313 DEL; PHE-1422; ASN-1425; ARG-1430 AND GLY-1720; CHARACTERIZATION OF VARIANTS DEE69 LEU-603; SER-698; VAL-701 AND THR-702;
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.