U.S. Department of Health & Human Services Divider Arrow National Institutes of Health Divider Arrow NCATS

Approval Year

Substance Class Protein
Created
by admin
on Wed Apr 02 04:58:53 GMT 2025
Edited
by admin
on Wed Apr 02 04:58:53 GMT 2025
Protein Type ENZYME
Protein Sub Type
Sequence Origin HUMAN
Sequence Type COMPLETE
Record UNII
NH2W5DQ1DO
Record Status Validated (UNII)
Record Version
  • Download
Name Type Language
TELOMERASE REVERSE TRANSCRIPTASE
Common Name English
HUMAN TELOMERASE REVERSE TRANSCRIPTASE
Preferred Name English
TELOMERASE-ASSOCIATED PROTEIN 2
Common Name English
Code System Code Type Description
FDA UNII
NH2W5DQ1DO
Created by admin on Wed Apr 02 04:58:53 GMT 2025 , Edited by admin on Wed Apr 02 04:58:53 GMT 2025
PRIMARY
UNIPROT
O14746
Created by admin on Wed Apr 02 04:58:53 GMT 2025 , Edited by admin on Wed Apr 02 04:58:53 GMT 2025
PRIMARY
Related Record Type Details
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Helenalin binds to Cys445 of telomerase in the Michael-type addition reaction, disturbing recognition of the telomere DNA at the telomerase active site and causing suppression of the enzyme activity.
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One compound is a trisubstituted acridine compound AS1410, a close analogue of BRACO-19. Synergistic behaviour was observed in both cell lines (MCF7 and A549) with both compounds in combination with cis-platin, but only when the ratio of AS1410:cis-platin is >1. In vivo tumour xenograft studies with the A549 lung cancer model and the trisubstituted acridine compound AS1410 showed only a modest anti-tumour effect when administered alone, but produced rapid and highly significant decreases in tumour volume when administered in combination with cis-platin.
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T-CELL ANTIGEN
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Cancer vaccine regimen combining human telomerase reverse transcriptase (hTERT) peptides with concomitant therapies targeting regulatory T cells (Tregs) and cyclooxygenase-2 (COX2)-mediated immunosuppression.
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Structural Modifications

Modification Type Location Site Location Type Residue Modified Extent Fragment Name Fragment Approval
AMINO_ACID_SUBSTITUTION [1_707] SITE_SPECIFIC TYROSINE O-PHOSPHATE 2R86C98KDX
AMINO_ACID_SUBSTITUTION [1_227] [1_457] SITE_SPECIFIC DEXFOSFOSERINE VI4F0K069V
METAL_BINDING [1_712] [1_868] [1_869] SITE_SPECIFIC MAGNESIUM CATION T6V3LHY838
Name Property Type Amount Referenced Substance Defining Parameters References
MOL_WEIGHT:NUMBER(CALCULATED) CHEMICAL