The aim of the present study was to determine characteristics of Rheb gene and protein in raini cashmere goat. Comparative analyses of the nucleotide sequences were performed. Open reading frames (ORFs), theoretical molecular weights of deduced polypeptides, the protein isoelectric point, protein characteristics and three-dimensional structures was predicted using online standard softwares. The full cDNA nucleotide sequence shares 99%, 99%, 99% and 94% identity with Inner Mongolia cashmere goat, cattle, horse and human, respectively. The deduced Rheb protein of raini cashmere goat consist of 184 amino acid residues and its predicted molecular weight was 20478 g/mol for the unmodified protein and the estimated isoelec-tric point (pI) was 5.59. Results showed that Rheb has a RAS domain starting at the amino acid 4 and end-ing at the amino acid 170. In conclusion, our data shows the Rheb cDNA is 555 bp in length, including a complete ORF corresponding to a polypeptide of 184 amino acids. Our results in raini cashmere goat showed that there are 1 N-glycosylation sites, 3 protein kinase C phosphorylation sites, 2 casein kinase II phosphorylation sites, 4 microbodies C-terminal targeting signals, 2 ATP/GTP binding sites motif A (P-loop) and a prenyl group binding site for predicted Psites of Rheb. raini cashmere goat Rheb protein also had an interaction with other predicted proteins. Hence, can suggest that Rheb has probably role in goat cells and must detect in future investigations.