5IIV:
reference: Nuclear Magnetic Resonance Structures of GCN4p Are Largely Conserved When Ion Pairs Are Disrupted at Acidic pH but Show a Relaxation of the Coiled Coil Superhelix., Kaplan AR, Brady MR, Maciejewski MW, Kammerer RA, Alexandrescu AT, Biochemistry. 2017 Mar 9. doi: 10.1021/acs.biochem.6b00634. PMID: 28230348

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