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. Author manuscript; available in PMC: 2010 Jun 16.
Published in final edited form as: Biochemistry. 2009 Jun 16;48(23):5131–5141. doi: 10.1021/bi900607q

Figure 1.

Figure 1

View of the 536Y-N-G-H539 Type I′ turn that flanks the N5/C4O edge of the flavin cofactor in the FMN-binding domain of BM3. The putative hydrogen bonds between the backbone amide groups of Asn537 and Gly538 and the N5 and C4O atoms of the FMN, respectively, are indicated along with those that stabilize the turn. Included also is the adjacent anchoring Type I turn comprised of residues 541–544 and the tandem Pro-Pro sequence. Hydrogen atoms overall and the side chains for residues 542–544 have been omitted for clarity.