Please use this identifier to cite or link to this item: https://doi.org/10.1016/S0024-3205(03)00670-2
Title: Cloning of rat telomerase catalytic subunit functional domains, reconstitution of telomerase activity and enzymatic profile of pig and chicken tissues
Authors: Wong, S.C.H.
Ong, L.L.
Er, C.P.N.
Gao, S.
Yu, H. 
So, J.B.Y.
Keywords: Rat telomerase catalytic subunit (rTERT)
RT-PCR
Telomerase activity
Issue Date: 10-Oct-2003
Citation: Wong, S.C.H., Ong, L.L., Er, C.P.N., Gao, S., Yu, H., So, J.B.Y. (2003-10-10). Cloning of rat telomerase catalytic subunit functional domains, reconstitution of telomerase activity and enzymatic profile of pig and chicken tissues. Life Sciences 73 (21) : 2749-2760. ScholarBank@NUS Repository. https://doi.org/10.1016/S0024-3205(03)00670-2
Abstract: Telomerase is a ribonucleoprotein polymerase which adds TTAGGG repeats to telomeric ends. Recent studies reported the reverse transcription enzyme activity mostly from the catalytic subunit (TERT) of the enzyme complex. Both human telomerase catalytic subunit (hTERT) and mouse telomerase catalytic subunit (mTERT) had been previously cloned but not rat telomerase catalytic subunit rTERT. In this study, the rTERT functional domains were cloned and was found that its function resemble to mouse and human telomerase. In addition, chicken and pig telomerase activity profile were studied and its enzyme activity is related to its proliferation capability of individual tissues. However, its catalytic subunit does not like mouse, rat and human cases that the telomerase activity could not reconstituted by the in-vitro transfection of mTERT and hTERT cloned vectors. Here we demonstrated that rTERT is similar to mTERT and hTERT but not pig and chicken telomerase. Further studies are needed to verify the malignancy characteristics because nowadays artificial organs/tissues from these animals are used for the transplantation to human body. © 2003 Elsevier Inc. All rights reserved.
Source Title: Life Sciences
URI: http://scholarbank.nus.edu.sg/handle/10635/115029
ISSN: 00243205
DOI: 10.1016/S0024-3205(03)00670-2
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