6ATD:
reference: Redox Regulation of a Gain-of-Function Mutation (N308D) in SHP2 Noonan Syndrome., Machado LESF, Critton DA, Page R, Peti W, ACS Omega. 2017 Nov 30;2(11):8313-8318. doi: 10.1021/acsomega.7b01318. Epub 2017 , Nov 27. PMID: 29214238

This OCA Structure page
uses Jmol, developed by the Jmol Development Team (documentation).