Homology modeling of human CCR2 receptor

Homology model of CCR2 receptor was built on the basis of the crystal structure of human beta-2 adrenoceptor (PDB ID-2RH1). The model showed 99.3% residues in the core and allowed regions of the Ramachandran plot and there was no residue present in the disallowed regions. Prosa2003 program was used to assess the model and it displayed good native protein folding. The model also provided good root mean square deviation (RMSD) value and alignment score with the template, human β₂-adrenoceptor. The binding site is found within the transmembrane (TM) region and is sufficiently large enough for docking the known CCR2 ligands. The docking results validated the homology model to meet various criteria that are necessary in molecular modeling studies.