UniProtKB/SwissProt variant VAR

DNA polymerase subunit gamma-1
Gene: POLG
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Variant information Variant position:

1134 The position of the amino-acid change on the UniProtKB canonical protein sequence.
Type of variant:

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:

From Histidine (H) to Arginine (R) at position 1134 (H1134R, p.His1134Arg). 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:

Change from medium size and polar (H) to large size and basic (R) The physico-chemical property of the reference and variant residues and the change implicated.
BLOSUM score:

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:

In MTDPS4A. Any additional useful information about the variant.

Sequence information Variant position:

1134 The position of the amino-acid change on the UniProtKB canonical protein sequence.
Protein sequence length:

1239 The length of the canonical sequence.
Location on the sequence:

VAMKWLFEEFAIDGRFCISI H DEVRYLVREEDRYRAALALQ 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                         VAMKWLFEEFAIDGRFCISIHDEVRYLVREEDRYRAALALQ

Mouse                         VAMKWLFEEFAIDGRFCISIHDEVRYLVREEDRYRAALALQ

Rat                           VAMKWLFEEFAIDGRFCISIHDEVRYLVREEDRYRAALALQ

Xenopus laevis                VAMKWLFEAYDIDGRFCISIHDEVRYLVHSKDRYRAALALQ

Drosophila                    VSMRWLMGSHV---RFCLSFHDELRYLVKEELSPKAALAMH

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 – 1239	DNA polymerase subunit gamma-1
Motif	1134 – 1141	Pol C
Binding site	1135 – 1135
Binding site	1135 – 1135
Binding site	1135 – 1135
Mutagenesis	1135 – 1135	D -> N. Abolishes DNA polymerase activity.
Beta strand	1134 – 1142

Literature citations
Analysis of mutant DNA polymerase gamma in patients with mitochondrial DNA depletion.
Taanman J.-W.; Rahman S.; Pagnamenta A.T.; Morris A.A.M.; Bitner-Glindzicz M.; Wolf N.I.; Leonard J.V.; Clayton P.T.; Schapira A.H.V.;
Hum. Mutat. 30:248-254(2009)
Cited for: VARIANTS LS HIS-232 AND SER-848; VARIANTS MTDPS4A ILE-251; THR-467; LEU-587; SER-748; CYS-831; SER-848; PRO-914; TYR-1110; ARG-1134 AND LYS-1136; VARIANTS GLY-1143 AND HIS-1236;

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.

UniProtKB/Swiss-Prot variant pages

UniProtKB/Swiss-Prot P54098: Variant p.His1134Arg