title: Cytosine-Cytosine Base-Pair Mismatch and Chirality in Nucleotide Supramolecular Coordination Complexes.
abstract: The base-pair sequences are the foundation for the biological processes of DNA or RNA, and base-pair mismatch is very important to reveal genetic diseases and DNA rearrangements. However, the lack of well-defined structural information about base-pair mismatch is obstructing the investigation of this issue. The challenge is to crystallize the materials containing the base-pair mismatch. Engineering the small-molecule mimics or model is an effective strategy to solve this issue. Here, six cytidine-5'-monophosphate (CMP) and 2'-deoxycytidine-5'-monophosphate (dCMP) coordination polymers were reported containing cytosine-cytosine base-pair mismatch (i-motif), and their single-crystal structures and chiralities were studied. The precise control over the formation of the i-motif was demonstrated, in which the regulating of supramolecular interactions was achieved based on molecular design. In addition, the chiralities of these coordination polymers were investigated according to their crystal structures and solution- and solid-state circular dichroism spectroscopy.
authors.affiliation: Key Laboratory of Cluster Science of Ministry of Education, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing, 100081, P. R. China.
authors.forename: Qi-Ming
authors.initials: QM
authors.lastname: Qiu
authors.affiliation: Key Laboratory of Cluster Science of Ministry of Education, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing, 100081, P. R. China.
authors.forename: Pei
authors.initials: P
authors.lastname: Zhou
authors.affiliation: Key Laboratory of Cluster Science of Ministry of Education, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing, 100081, P. R. China.
authors.forename: Leilei
authors.initials: L
authors.lastname: Gu
authors.affiliation: Key Laboratory of Cluster Science of Ministry of Education, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing, 100081, P. R. China.
authors.forename: Liang
authors.initials: L
authors.lastname: Hao
authors.affiliation: Beijing National Laboratory for Molecular Science (BNLMS), CAS Key Laboratory of Colloid, Interface and Chemical Thermodynamics, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China.
authors.forename: Minghua
authors.initials: M
authors.lastname: Liu
authors.affiliation: Key Laboratory of Cluster Science of Ministry of Education, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing, 100081, P. R. China.
authors.forename: Hui
authors.initials: H
authors.lastname: Li
mesh_terms: D020137:Base Pair Mismatch; D020029:Base Pairing; D056831:Coordination Complexes / Q000737:chemistry*; D018360:Crystallography, X-Ray; D003568:Cytidine Monophosphate / Q000737:chemistry*; D003596:Cytosine / Q000737:chemistry*; D004247:DNA / Q000737:chemistry; D003843:Deoxycytidine Monophosphate / Q000737:chemistry*; D006860:Hydrogen Bonding; D008958:Models, Molecular; D009711:Nucleotides / Q000737:chemistry*; D013237:Stereoisomerism
chemical_list: D056831:Coordination Complexes; D009711:Nucleotides; D003843:Deoxycytidine Monophosphate; D003596:Cytosine; D004247:DNA; D003568:Cytidine Monophosphate
keywords: base-pair mismatch; chirality; crystal structures; i-motif; nucleotide