2TMG:
reference: Engineering activity and stability of Thermotoga maritima glutamate dehydrogenase. II: construction of a 16-residue ion-pair network at the subunit interface., Lebbink JH, Knapp S, van der Oost J, Rice D, Ladenstein R, de Vos WM, J Mol Biol 1999 Jun 4;289(2):357-69. PMID: 10366510

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