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. 2017 Jan 10;7:2045. doi: 10.3389/fpls.2016.02045

FIGURE 1.

FIGURE 1

Nuclear factor Y (NF-Y) protein structure. The NF-YA conserved region is composed of two α-helices. The A1 helix is in the N-terminal of the core region and functions in interaction with NF-YB and NF-YC. The A2 is in the C-terminal and functions in specific recognition of the CCAAT element. The Histone Fold Domain (HFD) domain of the NF-YB and NF-YC proteins contains the DNA-binding domain and protein-protein interaction domain. The diagram shows AtNF-YA1, AtNF-YB1, and AtNF-YC1 as examples.