Backbone 1H and 15N chemical shifts together with 15N T1, T2, and -15N NOE relaxation data for the investigated complexes have been deposited to the Biological Magnetic Resonance Bank with accession numbers BMRB 52896 (WT hI-BABP, apo), 52898 (WT hI-BABP:GCDA:GCA), 52899 (WT hI-BABP:GCA), 52900 (WT hI-BABP:GCDA), 52901 (Q51A hI-BABP, apo), 52903 (Q51A hI-BABP:GCA), and 52904 (Q51A hI-BABP: GCDA).

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