Related Experiment Video
Updated: Mar 14, 2026

An In Vitro Assay to Detect tRNA-Isopentenyl Transferase Activity
Published on: October 8, 2018
Function of membranous lysyl-tRNA synthetase and its implication for tumorigenesis
Ho Jeon Young1, Jung Weon Lee2, Sunghoon Kim2
1College of Pharmacy, Korea University, Sejong 30019, Republic of Korea; Medicinal Bioconvergence Research Center, Seoul National University, Seoul 08826, Republic of Korea.
Abstract:
Aminoacyl-tRNA synthetases (ARSs) are essential enzymes that conjugate specific amino acids to their cognate tRNAs for protein synthesis. Besides their catalytic activity, recent studies have uncovered many additional functions of these enzymes through their interactions with diverse cellular factors. Among human ARSs, cytosolic lysyl-tRNA synthetase (KRS) is often highly expressed in cancer cells and tissues, and facilitates cancer cell migration and invasion through the interaction with the 67kDa laminin receptor on the plasma membrane. Specific modulation of this interaction by small molecule inhibitors has revealed a new way to control metastasis. Here, we summarize the pro-metastatic functions of KRS and their patho-physiological implications.
Related Concept Videos
tRNA Activation
tRNA Activation
Translesion DNA Polymerases
TLS polymerases are found in all three domains of life - archaea, bacteria, and eukaryotes. Of the different classes of TLS polymerases, members of the Y family are fitted with specialized structures that...
Transfer RNA Synthesis
Each of these chemical modifications is carried by a specific enzyme, post-transcription. All of these enzymes have unique base and site-specificity. Methylation, the most common chemical modification, is carried by at least nine different enzymes, with...
mTOR Signaling and Cancer Progression
The mTOR pathway or the...
Abnormal Proliferation
