Molecular Cloning, E. coli Expression and Characterization of Thermostable Alanine Aminotransferase from Pyrococcus abyssi, 2022. Muhammad Shahid Nadeem, Jalaluddin Azam Khan and Firoz Anwar. Pakistan J. Zool., 55: 871-880. DOI: https://dx.doi.org/10.17582/journal.pjz/20220217130248