1G2D:
reference: Beyond the "recognition code": structures of two Cys2His2 zinc finger/TATA box complexes., Wolfe SA, Grant RA, Elrod-Erickson M, Pabo CO, Structure (Camb) 2001 Aug;9(8):717-23. PMID: 11587646

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