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Centromere protein B dimerization domain The centromere protein B (CENP-B) dimerization domain is composed of two alpha-helices, which are folded into an antiparallel configuration. dimerization of CENP-B is mediated by this domain, in which monomers dimerize to form a symmetrical, antiparallel, four-helix bundle structure with a large hydrophobic patch in which 23 residues of one monomer form van der Waals contacts with the other monomer. This CENP-B dimer configuration may be suitable for capturing two distant CENP-B boxes during centromeric heterochromatin formation. |
Jiyao W et al.(2023). "The conserved domain database in 2023.",