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TK1

Synonyms
TK2
External resources
Summary
The protein encoded by this gene is a cytosolic enzyme that catalyzes the addition of a gamma-phosphate group to thymidine. This creates dTMP and is the first step in the biosynthesis of dTTP, which is one component required for DNA replication. The encoded protein, whose levels fluctuate depending on the cell cycle stage, can act as a low activity dimer or a high activity tetramer. High levels of this protein have been used as a biomarker for diagnosing and categorizing many types of cancers.

Variant counts

Variant classification counts according to ACMG guideline on all identified variants among our tested samples are listed. The variants with over 5% variant frequency in population genome databases ( gnomAD, dbSNP, etc) are excluded.

Pathogenic
6
Likely pathogenic
0
VUS
7,325
Likely benign
160
Benign
0

Patient phenotypes

Proportions of phenotypes among 6 patients carring pathogenic or likely pathogenic variants on TK1 gene are displayed below.

Phenotype class
Patients in 3billion (%)
Abnormality of the eye
66.7%
Abnormality of the nervous system
33.3%
Abnormality of head or neck
16.7%
Abnormality of limbs
16.7%
Abnormality of the ear
16.7%
Abnormality of the integument
16.7%
Abnormality of the musculoskeletal system
16.7%
Abnormal cellular phenotype
0%
Abnormality of blood and blood-forming tissues
0%
Abnormality of metabolism homeostasis
0%
Abnormality of prenatal development or birth
0%
Abnormality of the breast
0%
Abnormality of the cardiovascular system
0%
Abnormality of the digestive system
0%
Abnormality of the endocrine system
0%
Abnormality of the genitourinary system
0%
Abnormality of the immune system
0%
Abnormality of the respiratory system
0%
Abnormality of the thoracic cavity
0%
Abnormality of the voice
0%
Constitutional symptom
0%
Growth abnormality
0%
Neoplasm
0%

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