title: Homology modeling and virtual screening studies of FGF-7 protein-a structure-based approach to design new molecules against tumor angiogenesis.
abstract: Keratinocyte growth factor (KGF) protein is a member of the fibroblast growth factor (FGF) family, which is also known as FGF-7. The FGF-7 plays an important role in tumor angiogenesis. In the present work, FGF-7 is treated as a potential therapeutic target to prevent angiogenesis in cancerous tissue. Computational techniques are applied to evaluate and validate the 3D structure of FGF-7 protein. The active site region of the FGF-7 protein is identified based on hydrophobicity calculations using CASTp and Q-site Finder active site prediction tools. The protein-protein docking study of FGF-7 with its natural receptor FGFR2b is carried out to confirm the active site region in FGF-7. The amino acid residues Asp34, Arg67, Glu116, and Thr194 in FGF-7 interact with the receptor protein (FGFR2b). A grid is generated at the active site region of FGF-7 using Glide module of Schrödinger suite. Subsequently, a virtual screening study is carried out at the active site using small molecular structural databases to identify the ligand molecules. The binding interactions of the ligand molecules, with piperazine moiety as a pharmacophore, are observed at Arg67 and Glu149 residues of the FGF-7 protein. The identified ligand molecules against the FGF-7 protein show permissible pharmacokinetic properties (ADME). The ligand molecules with good docking scores and satisfactory pharmacokinetic properties are prioritized and identified as novel ligands for the FGF-7 protein in cancer therapy.
authors: Department of Chemistry, University College of Science, Osmania University, Tarnaka, Hyderabad, Telangana State 500007 India.
authors: Rajender
authors: R
authors: Vadija
authors: Department of Chemistry, University College of Science, Osmania University, Tarnaka, Hyderabad, Telangana State 500007 India.
authors: Kiran Kumar
authors: KK
authors: Mustyala
authors: Department of Chemistry, University College of Science Saifabad, Osmania University, Saifabad, Hyderabad, Telangana State 500004 India.
authors: Navaneetha
authors: N
authors: Nambigari
authors: Department of Chemistry, University College of Science, Osmania University, Tarnaka, Hyderabad, Telangana State 500007 India.
authors: Ramasree
authors: R
authors: Dulapalli
authors: Department of Chemistry, University College of Science, Osmania University, Tarnaka, Hyderabad, Telangana State 500007 India.
authors: Rama Krishna
authors: RK
authors: Dumpati
authors: Department of Chemistry, University College of Science, Osmania University, Tarnaka, Hyderabad, Telangana State 500007 India.
authors: Vishwanath
authors: V
authors: Ramatenki
authors: Department of Chemistry, University College of Science, Osmania University, Tarnaka, Hyderabad, Telangana State 500007 India.
authors: Santhi Prada
authors: SP
authors: Vellanki
authors: Department of Chemistry, University College of Science, Osmania University, Tarnaka, Hyderabad, Telangana State 500007 India.
authors: Uma
authors: U
authors: Vuruputuri
keywords: ADME; Angiogenesis; FGF-7; Protein–protein docking; Virtual screening