molecule m;
float 	m_xyz[2000];
float 	dgrad, fret;
int 	ier; 

m = getpdb_prm("gbrna.pdb", "leaprc.rna.ff94", "", 1);
mm_options( "ntpr=1, gb=1, kappa=0.10395, rgbmax=99., cut=99.0, diel=C ");
mme_init( m, NULL, "::Z", m_xyz, NULL);

dgrad = 3*m.natoms*0.0001;
setxyz_from_mol( m, NULL, m_xyz );
ier = conjgrad(m_xyz, 3*m.natoms, fret, mme, dgrad, 10.0, 1 );