UniProtKB/Swiss-Prot O95180: Variant p.Pro640Leu

Voltage-dependent T-type calcium channel subunit alpha-1H
Gene: CACNA1H
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Variant information Variant position:

640 The position of the amino-acid change on the UniProtKB canonical protein sequence.
Type of variant:

LB/B 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:

From Proline (P) to Leucine (L) at position 640 (P640L, p.Pro640Leu). 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:

Similar physico-chemical property. Both residues are medium size and hydrophobic. The physico-chemical property of the reference and variant residues and the change implicated.
BLOSUM score:

-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
Other resources:

Links to websites of interest for the variant.

Variant rs61734410 [ dbSNP | Ensembl ]

Sequence information Variant position:

640 The position of the amino-acid change on the UniProtKB canonical protein sequence.
Protein sequence length:

2353 The length of the canonical sequence.
Location on the sequence:

GVGSGKGSTSPGPKGKWAGG P PGTGGHGPLSLNSPDPYEKI 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                         GVGSGKGSTSPGPKGKWAGGPPGTGGHGPLSLNSPDPYEKI

Mouse                         GAVNSKGSTSSRPKGLRSAGTPGATAHSPLSLGSPSPYEKI

Rat                           GTVNSKGGTSSRPKGLRGAGAPGAAVHSPLSLGSPRPYEKI

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 – 2353	Voltage-dependent T-type calcium channel subunit alpha-1H
Topological domain	420 – 793	Cytoplasmic
Region	621 – 646	Disordered

Literature citations
Organization and alternative splicing of CACNA1H.
Mittman S.; Agnew W.S.;
Cited for: NUCLEOTIDE SEQUENCE [GENOMIC DNA] OF 424-661 AND 838-2373 (ISOFORM 1); VARIANTS LEU-640 AND HIS-2077; Association between genetic variation of CACNA1H and childhood absence epilepsy.
Chen Y.; Lu J.; Pan H.; Zhang Y.; Wu H.; Xu K.; Liu X.; Jiang Y.; Bao X.; Yao Z.; Ding K.; Lo W.H.; Qiang B.; Chan P.; Shen Y.; Wu X.;
Ann. Neurol. 54:239-243(2003)
Cited for: VARIANTS ECA6 LEU-161; LYS-282; SER-456; SER-499; LEU-648; GLN-744; VAL-748; ASP-773; SER-784; MET-831; SER-848 AND ASN-1463; VARIANTS VAL-313; LEU-640; ALA-664; SER-684; CYS-788; HIS-2060; HIS-2077 AND SER-2173;

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.