Abstract

Cumin (Cuminum cyminum L.) belongs to Apiaceae family, is an important seed spice and one of the earliest spices used by mankind for its aromatic and medicinal properties. Cumin seeds are very commonly used to give flavour and texture to the food. In addition, it also acts as preservative and provides nutritional and health benefits. The typical aroma of the cumin seeds is due to their volatile oil content, the principal constituent of which is cuminol (cumin aldehyde). Studies have been done on properties of the essential oil content of cumin and other aspects. Only few studies are available citing the nucleotides sequences present in cumin but no reports are available on in-silico studies of proteins structure supposed to be present in cumin. In the present study, a high quality 3D structure and function of cumin protein (GQ 33) have been predicted for the hypothetical amino acid sequence obtained from reported nucleotides of cumin. The physiochemical properties for GQ 33 cumin protein were identified using Protparam. The instability index 39.52, isoelectric point (pI) 9.97 and grand average hydropathicity (GRAVY) -0.245 determined from primary and secondary structural analysis illustrate the stability of GQ 33 protein. Stability of 3D structure of protein was confirmed using Ramachandran plot having 95.7% residues or empirically distributed data-points present in the structure lie in most favoured region. For the prediction of secondary structure of protein FASTA sequences were used and prediction was performed using PSIPRED, JPRED, Protein Predict and SOPMA. SAVES server was used for further validation of protein structure.