Variant position: 309 The position of the amino-acid change on the UniProtKB canonical protein sequence.
Protein sequence length: 872 The length of the canonical sequence.
Location on the 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.
Residue conservation: The multiple alignment of the region surrounding the variant against various orthologous sequences.
Human VDAQGEEMKEEFETYADALW WGLITLATIGYGDKTPKTWEG
Mouse MDAQGEEMKEEFETYADALW WGLITLATIGYGDKTPKTWEG
Rat MDAQGEEMKEEFETYADALW WGLITLATIGYGDKTPKTWEG
Bovine VDAQGEEMKEEFETYADALW WGLITLATIGYGDKTPKTWEG
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
1 – 872 Potassium voltage-gated channel subfamily KQT member 3
304 – 324 Pore-forming; Name=Segment H5
318 – 318 G -> S. >50% Reduction of wt heteromeric current; ratio of 1:1 and 1:1:2.
A novel mutation of KCNQ3 (c.925T-->C) in a Japanese family with benign familial neonatal convulsions.
Hirose S.; Zenri F.; Akiyoshi H.; Fukuma G.; Iwata H.; Inoue T.; Yonetani M.; Tsutsumi M.; Muranaka H.; Kurokawa T.; Hanai T.; Wada K.; Kaneko S.; Mitsudome A.;
Ann. Neurol. 47:822-826(2000)
Cited for: VARIANT BFNS2 ARG-309;
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.