def associateResidueName(coordinates):
    """
    Associate the protein residues names to the networkx node ID.
    Parameters:
        coordinates, np.array, contains the list of residues names
    Returns:
        dict_residue_name: dictionary {residue_nxID: residue_name}
    """
    dict_residue_name = dict()
    for i in range(coordinates.shape[0]):
        dict_residue_name[str (i)] = coordinates[i, 0]
    return dict_residue_name