The Root-Mean-Square Deviation (RMSD) of Bond Lengths and Bond Angles

Multiple Choice

The root-mean-square deviation (RMSD) of bond lengths and bond angles of molecular structures are reported in PDB files to help researchers distinguish between higher and lower quality structures. Well defined structures have ____________________.

A) RMSD for bond lengths less than 0.1 Å and RMSD for bond angles of more than 1.0°
B) RMSD for bond lengths less than 0.01 Å and RMSD for bond angles of about 1.0°
C) RMSD for bond lengths less than 0.01 Å and RMSD for bond angles of about 2.0°
D) RMSD for bond lengths less than 1 Å and RMSD for bond angles of about 1.5°
E) none of the above