Harmonizome 3.0

HERV-K_11q22.1 provirus ancestral Pol protein [Includes: Reverse transcriptase

telomerase reverse transcriptase

Telomerase is a ribonucleoprotein polymerase that maintains telomere ends by addition of the telomere repeat TTAGGG. The enzyme consists of a protein component with reverse transcriptase activity, encoded by this gene, and an RNA component which serves as a template for the telomere repeat. Telomerase expression plays a role in cellular senescence, as it is normally repressed in postnatal somatic cells resulting in progressive shortening of telomeres. Deregulation of telomerase expression in somatic cells may be involved in oncogenesis. Studies in mouse suggest that telomerase also participates in chromosomal repair, since de novo synthesis of telomere repeats may occur at double-stranded breaks. Alternatively spliced variants encoding different isoforms of telomerase reverse transcriptase have been identified; the full-length sequence of some variants has not been determined. Alternative splicing at this locus is thought to be one mechanism of regulation of telomerase activity. [provided by RefSeq, Jul 2008]

High density lipoprotein cholesterol level QTL 6

high density lipoprotein cholesterol level QTL 1

cholesterol 25-hydroxylase

This is an intronless gene that is involved in cholesterol and lipid metabolism. The encoded protein is a membrane protein and contains clusters of histidine residues essential for catalytic activity. Unlike most other sterol hydroxylases, this enzyme is a member of a small family of enzymes that utilize diiron cofactors to catalyze the hydroxylation of hydrophobic substrates. [provided by RefSeq, Jul 2008]

cholesterol-lowering factor

Cholesterol level QTL 2

neutral cholesterol ester hydrolase 1

Predicted to enable serine hydrolase activity. Predicted to be involved in ether lipid metabolic process. Predicted to act upstream of or within protein dephosphorylation and xenobiotic metabolic process. Located in membrane. [provided by Alliance of Genome Resources, Mar 2025]

lipase A, lysosomal acid, cholesterol esterase

This gene encodes lipase A, the lysosomal acid lipase (also known as cholesterol ester hydrolase). This enzyme functions in the lysosome to catalyze the hydrolysis of cholesteryl esters and triglycerides. Mutations in this gene can result in Wolman disease and cholesteryl ester storage disease. Alternatively spliced transcript variants have been found for this gene. [provided by RefSeq, Jan 2014]

lecithin-cholesterol acyltransferase

This gene encodes the extracellular cholesterol esterifying enzyme, lecithin-cholesterol acyltransferase. The esterification of cholesterol is required for cholesterol transport. Mutations in this gene have been found to cause fish-eye disease as well as LCAT deficiency. [provided by RefSeq, Jul 2008]

High density lipoprotein cholesterol level QTL 4

High density lipoprotein cholesterol level QTL 5

High density lipoprotein cholesterol level QTL on chromosome 8

High density lipoprotein cholesterol, low serum, 3

cholesterol induced regulator of metabolism RNA