Comparison with Putative Dimer Interfaces of GPCRS Inferred from Crystallography | To allow a quantitative comparison, we calculated the minimum Cor root mean square deviation ( RMSD ) distance between members of the cluster of dimeric complexes that formed during the simulations and each crystal structure listed in 82 Table. |
Comparison with Putative Dimer Interfaces of GPCRS Inferred from Crystallography | The calculated RMSD values of S3 and S4 Tables suggest that the dimer interface from simulations that is closest to one inferred from crystal structures is the TM1,2,H8/TM1,2,H8 interface. |
Comparison with Putative Dimer Interfaces of GPCRS Inferred from Crystallography | The relatively small RMSD values listed in S3 Table, indicate that the simulations of the 5-OR system also reproduced both symmetric and asymmetric dimer interfaces inferred from CXCR4 crystal structures [24] (see S2 Table for details) with reasonable accuracy. |
Interface Identification and Clustering | Comparisons with available crystal structures of parallel interacting GPCRs (see 82 Table for a current list) were evaluated by calculating the overall COL RMSD . |
Interface Identification and Clustering | For the evaluation of the identified hetero-dimeric interfaces, both pair combinations (e.g., u-OR/S-OR and 5-OR/u-OR) were considered for the superposition onto crystal structures, and the RMSD was defined as the minimum between the two individual RMSD values. |
Supporting Information | Minimum RMSD distances (below 10 A) between homo-dimeric complexes formed during simulation and selected crystal structures. |
Supporting Information | For each cluster of dimeric complexes that formed during simulation, the configuration corresponding to the lowest RMSD (highlighted in bold) is depicted in Figs. |
System Preparation | Notably, the root mean square deviation ( RMSD ) of this loop conformation from the resolved loop of the newest high-resolution crystal structure of 5-OR [40] is 0.46 A overall. |
Analytical Models of Distribution of Affinity, Equilibrium Constants, Specificity and Kinetics | In this study, the first passage time(FPT) to reach the native binding state(the time required for the random walker to visit order parameter RMSD ~ 0 for the first time) is used as a typical or representative time scale for binding. |
Microscopic Atomic Binding Model and Simulation Results | In Fig 10A—10C, we also show the one dimensional projection of binding free energy landscape to RMSD with different ligands with different intrinsic specificity characterized by ISR. |
Simulations | In this report, we use the RMSD as an order parameter ( RMSD represents the root mean square distance relative to the native binding structure) that represents the progress of binding towards native state. |
Simulations | For activation process, the order parameter or reaction coordinate RMSD is likely to be locally connected. |
Simulations | It is straightforward to see that the overall kinetic process involves diffusion in order parameter RMSD space. |
Theory and Analytical Models | We can use RMSD as order parameter to describe the position of an ensemble of states in the landscape. |
Computational identification of stabilizing single point mutations | Of the 3,021 mutations, 523 mutations (17.3%) were predicted to have a stabilizing effect according to all three metrics (energy, contacts, and RMSD ), while 421% of |
Computational identification of stabilizing single point mutations | (A) RMSD vs. simulation temperature. |
Computational identification of stabilizing single point mutations | The simulated Tm values evaluated using RMSD , total energy, and number of contacts are strongly correlated, as shown in Fig. |
Computational test of the theoretical analysis | As mentioned, the simulated Tm values evaluated using RMSD , total energy, and number of contacts are strongly correlated in our simulations as shown in Fig. |
Monte Carlo protein unfolding simulation | As shown in figures 82 Fig—S4 Fig, the RMSD and total energy increased and the number of contacts decreased as each simulation proceeded, and with increasing temperature. |
Monte Carlo protein unfolding simulation | Plots of RMSD and contact number vs. temperature showed sigmoidal behavior, with a clearly identifiable transition temperature, and the melting temperature (Tm) could be determined by fitting to a sigmoidal function (Fig. |
Monte Carlo simulations | A 2,000,000-step simulation was then run at each of 32 temperatures, averaging over all 2,000,000 steps to obtain Energy, RMSD , and number of contacts. |
Monte Carlo simulations | Data was then plotted and fit to a sigmoid to obtain the computationally-predicted melting temperature, for each of Energy, RMSD , and number of contacts. |
Supporting Information | RMSD is averaged over 50 replications. |
Periodic B-Z junction in (CAG)6. (CAG)6 duplex | A high RMSD of 8.2(0.5)A beyond 25ns (Fig. |
Periodic B-Z junction in (CAG)6. (CAG)6 duplex | Above conformational rearrangements result in a high RMSD of ~8A at the end of the simulation (816 Fig). |
Results | Root mean square deviation ( RMSD ) calculated over 300ns simulation indicates the existence of three different ensembles (Fig. |
Results | 1B): the first ensemble persists till ~16.5ns with RMSD centered around 2.8(0.7)A, the second one persists between 16.5-181ns with a RMSD of 4.7(0.7)A and the third one persists beyond ~181ns with the highest RMSD of 6.2(0.8)A. |
Results | Intriguingly, a high RMSD of 4.5(0.6)A observed between 16.5-100ns is associated with a change in glycosyl conformation of mismatched A23 and A8 from the starting anti conformation to syn conformation. |
Supporting Information | Note that While the latter attains the RMSD of ~8 A very early in the simulation, the former attains the RMSD of ~8 A only ~200ns as indicated by solid arrows. |
Supporting Information | .anti starting glycosyl conformation: one With RMSD of ~5 A during 200ns and other With RMSD of ~8 A beyond 200ns. |
Absence of nucleotide, but not nucleotide hydrolysis, strongly affects P0190723 pocket score | To test whether the chemical and physical properties evaluated by PocketFEATURE are captured by traditional structural-only metrics such as RMSD, we calculated the RMSD of the 20 pocket residues aligned to the same 20 residues of the 4DXD SaFtsZ-PC190723 co-crystal structure for each MD trajectory (Fig. |
Absence of nucleotide, but not nucleotide hydrolysis, strongly affects P0190723 pocket score | Large-magnitude pocket scores did not correspond with low RMSD from the SaFtsZ-PC190723 co-crystal, with SaFtsZ and SeFtsZ having values intermediate between the low values of APO SaFtsZ and BsFtsZ and the high values of SaFtsZG193D. |
Discussion | Our results establish that PocketFEATURE is able to not only distinguish aspects of the drug-binding pocket in FtsZ structures from different species that are not evident from methods such as RMSD , which only considers structural information; the algorithm also can evaluate how protein pockets in molecules from resistant mutants may differ from the optimal binding structure. |
PCt 97023 pocket scores from FtsZ crystal structures are highly species-dependent | Root mean squared deviation ( RMSD ) of the pockets of the crystal structures to the pocket of the SaFtsZ-PC190723 co-crystal (Fig. |
PCt 97023 pocket scores from FtsZ crystal structures are highly species-dependent | 2B) clearly identified that Staphylococcus species have pocket structures that are more similar to that of the SaFtsZ-PC190723 co-crystal, but in contrast to PocketFEATURE, RMSD is unable to distinguish among non-Staphylococcus species. |
PCt 97023 pocket scores from FtsZ crystal structures are highly species-dependent | (B) RMSD of the 3D coordinates of FtsZ crystal structures from the P0190723 co-crystal coarsely separate the proteins into close and distant relations of GDP-bound Staphylococcus FtsZ, but this measurement does not capture additional features of the drug pockets that distinguish between structures of medium and low similarity to the SaFtsZ-PC1 90723 co-crystal. |
Convergence of the simulated ensembles | Importantly, the profiles calculated using the last 80-ns segments of the control and folding runs agree very well, with an overall RMSD of 0.014. |
Convergence of the simulated ensembles | The correlation coefficient of the two contact maps is 0.91 and the RMSD is 0.016. |
Mutant modulation of p53-TAD local and long-range conformations | Clustering analysis With 5 A COL RMSD cutoff leads to numerous small clusters for all ensembles, With very feW clusters occupied over 1% (see 83—88 Figs). |
Residue Number | The correlation efficient of two contacts is 0.91 and the RMSD is 0.016. |
Structural, clustering and NMR analysis | The resulting 4000-member ensembles were clustered using the fixed radius clustering algorithm as implemented in the MMTSB/ensclusterpl tool (with—kclust option), with a cutoff radius of 5 A Cor root-mean-square distance ( RMSD ). |
Atomistic simulations of UraA | Calculation of the root mean square displacement (RMSD) of the protein during the simulation revealed a sharp increase of the protein RMSD at the beginning of the simulations to ~ 0.35 nm. |
Atomistic simulations of UraA | The RMSD for the longer AT-MD simulations subsequently increased to final values of ~ 0.5 nm (89A Fig). |
Supporting Information | Root mean square deviation ( RMSD ) and the closed state of UraA. |
Supporting Information | Root mean square deviation ( RMSD ) of UraA as a function of the simulation time for the atomistic systems (UraA-AT in PE, PG, CL, UraA-pc-AT in PC and UraA-pe-AT in PE in Table 1 and 81 Table). |