<div dir="ltr"><div dir="ltr"><div><br></div><div>Hi,</div><div>I am attempting to perform MD stimulations with a protein containing an FAD cofactor, however, I keep receiving the following error message:</div><div><br></div><div>Charge model: AMBER ff14SB</div><div>Assigning partial charges to residue FAD (net charge -2) with am1-bcc method</div><div>Running ANTECHAMBER command: /Users/alwaterbury/Desktop/Chimera.app/Contents/Resources/bin/amber14/bin/antechamber -ek qm_theory='AM1', -i /var/folders/wd/pdz6gvr12ybbxtfs6m6mn1y80000gn/T/tmpUR9bIs/ante.in.mol2 -fi mol2 -o /var/folders/wd/pdz6gvr12ybbxtfs6m6mn1y80000gn/T/tmpUR9bIs/ante.out.mol2 -fo mol2 -c bcc -nc -2 -j 5 -s 2</div><div>(FAD) </div><div><br></div><div>(FAD) dyld: Library not loaded: /usr/local/lib/libquadmath.0.dylib</div><div><br></div><div>(FAD) Referenced from: /Users/alwaterbury/Desktop/Chimera.app/Contents/Resources/lib/libgfortran.3.dylib</div><div><br></div><div>(FAD) Reason: image not found</div><div><br></div><div>(FAD) Running: /Users/alwaterbury/Desktop/Chimera.app/Contents/Resources/bin/amber14/bin/bondtype -j part -i ANTECHAMBER_BOND_TYPE.AC0 -o <a href="http://ANTECHAMBER_BOND_TYPE.AC">ANTECHAMBER_BOND_TYPE.AC</a> -f ac</div><div><br></div><div>(FAD) </div><div><br></div><div>(FAD) Running: /Users/alwaterbury/Desktop/Chimera.app/Contents/Resources/bin/amber14/bin/atomtype -i ANTECHAMBER_AC.AC0 -o <a href="http://ANTECHAMBER_AC.AC">ANTECHAMBER_AC.AC</a> -p gaff</div><div><br></div><div>(FAD) Total number of electrons: 408; net charge: -2</div><div><br></div><div>(FAD) </div><div><br></div><div>(FAD) Running: /Users/alwaterbury/Desktop/Chimera.app/Contents/Resources/bin/amber14/bin/sqm -O -i <a href="http://sqm.in">sqm.in</a> -o sqm.out</div><div><br></div><div>(FAD) Error: cannot run "/Users/alwaterbury/Desktop/Chimera.app/Contents/Resources/bin/amber14/bin/sqm -O -i <a href="http://sqm.in">sqm.in</a> -o sqm.out" of bcc() in charge.c properly, exit</div><div><br></div><div>Failure running ANTECHAMBER for residue FAD</div><div>Check reply log for details</div><div><br></div><div>Any help/suggestions would be much appreciate! </div><div>Best,</div><div>Amanda</div><div class="gmail_signature"><div dir="ltr"><div style="color:rgb(0,0,0);font-family:-apple-system-font;font-size:12px;line-height:16px"><br></div></div></div>
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