Here we show that much more detailed information is revealed once genus is computed for various types of bonds in a given structure, e.g. also for non-canonical base pairs, including those involved in helix backbone packing interactions in RNA.
Primary checking was conducted using WHATIF [ 36] and PROCHECK [ 37], which verify local factors, such as dihedral angle distribution, backbone conformation, bond lengths and backbone packing.
Significant entries describe the configuration of backbone crossings, which reflects the pattern of backbone packing in the structural core of the protein.
A dehydron is a defectively packed backbone hydrogen bond suggesting preformed monomeric structure whose Coulomb energy is highly sensitive to binding-induced water exclusion.
The DPP-BT monomeric unit in polymer backbone enhanced chain packing and induced a high-lying highest occupied molecular orbital (HOMO) level and the DPP-BP segment induced a deeper HOMO level.
The glass transition temperatures of the polyimides increased 15 to 98°C (compared to unhindered polyimide analogs) when one or more methyl group was placed ortho to the imide nitrogen, hindering backbone rotation, chain packing and flexibility.
In contrast, spin labeling peripheral helices provides information about side chain packing, backbone dynamics, surface exposure, and changes thereof.
In the other extreme, do certain side chains act independently from their network neighbors, positioned for function by their backbone placement and/or packing interactions with other portions of the side chain?
The contorted structure and the hindered rotation of the polymer backbone generate inefficient chain packing, which leads to an increase of nanoporosity and higher surface areas.
Each hMAT2Bresv protomer is bound with an NADP molecule in its extended configuration, packing against backbone atoms from the conserved GxxGxxG motif.
