Sequence information
Variant position: 218 The position of the amino-acid change on the UniProtKB canonical protein sequence.
Protein sequence length: 2005 The length of the canonical sequence.
Location on the sequence:
VITFAYVTEFVDLGNVSALR
T FRVLRALKTISVIPGLKTIV
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 VITFAYVTEFVDLGNVSALRT FRVLRALKTISVIPGLKTIV
Mouse VITFAYVTEFVNLGNVSALRT FRVLRALKTISVIPGLKTIV
Rat VITFAYVTEFVNLGNVSALRT FRVLRALKTISVIPGLKTIV
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 – 2005
Sodium channel protein type 2 subunit alpha
Transmembrane
215 – 231
Helical; Name=S4 of repeat I
Repeat
111 – 456
I
Glycosylation
212 – 212
N-linked (GlcNAc...) asparagine
Alternative sequence
209 – 209
D -> N. In isoform 2.
Helix
218 – 226
Literature citations
SCN2A encephalopathy: A major cause of epilepsy of infancy with migrating focal seizures.
Howell K.B.; McMahon J.M.; Carvill G.L.; Tambunan D.; Mackay M.T.; Rodriguez-Casero V.; Webster R.; Clark D.; Freeman J.L.; Calvert S.; Olson H.E.; Mandelstam S.; Poduri A.; Mefford H.C.; Harvey A.S.; Scheffer I.E.;
Neurology 85:958-966(2015)
Cited for: VARIANTS DEE11 ILE-136; LYS-218; LEU-856; ASN-905; CYS-928; ARG-1593; VAL-1634 AND GLN-1882; VARIANT BFIS3 SER-240; VARIANT LYS-976;
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.