1B72:
reference: Structure of a HoxB1-Pbx1 heterodimer bound to DNA: role of the hexapeptide and a fourth homeodomain helix in complex formation., Piper DE, Batchelor AH, Chang CP, Cleary ML, Wolberger C, Cell 1999 Feb 19;96(4):587-97. PMID: 10052460

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