|  | YBL068W |  | 
|  | PRS4; SGDID:S000000164 |  | 
|  | 5-phospho-ribosyl-1(alpha)-pyrophosphate synthetase, synthesizes PRPP, which is required for nucleotide, histidine, and tryptophan biosynthesis; one of five related enzymes, which are active as heteromultimeric complexe; Verified ORF. |  | 
|  | 328 |  | 
|  | 6.11 |  | 
|  | None |  | 
|  | 1.024 |  | 
|  | 3.36 |  | 
|  | 19.90 |  | 
|  | 66.70 |  | 
|  | 203.00 |  | 
|  | None |  |