| Identifier | Protein names | Gene names | Cross reference refseq | Length | Species | 
| Q5IRJ7 | Profilin-4; Profilin IV; | Pfn4; | NP_001009503.1; | 129 | rat | 
| Q8R414 | Prokineticin-1; Endocrine-gland-derived vascular endothelial growth factor; EG-VEGF; | Prok1; | NP_620206.1; | 105 | rat | 
| Q8R413 | Prokineticin-2; PK2; | Prok2; Bv8; | NP_620207.1; | 107 | rat | 
| Q8CJ52 | Prominin-2; PROM-2; Prominin-like protein 2; rPROML2; Testosterone-regulated prominin-related protein; | Prom2; Proml2 Trprp; | NP_620212.1; | 834 | rat | 
| P53813 | Vitamin K-dependent protein S; | Pros1; Pros; | NULL | 675 | rat | 
| Q9JKB8 | Pre-mRNA-splicing factor 18; PRP18 homolog; Potassium channel regulatory factor; | Prpf18; Kcrf Prp18; | NP_612532.1; | 342 | rat | 
| Q9JMJ4 | Pre-mRNA-processing factor 19; EC 6.3.2.-; Neuronal differentiation-related gene protein; PRP19/PSO4 homolog; | Prpf19; Prp19; | NP_647549.2; | 504 | rat | 
| P10164 | Acidic proline-rich protein PRP25; Fragment; | NULL | NULL | 172 | rat | 
| P04474 | Acidic proline-rich protein PRP33; Proline-rich proteoglycan 1; | Prpg1; | NULL | 206 | rat | 
| Q5RKH1 | Serine/threonine-protein kinase PRP4 homolog; EC 2.7.11.1; PRP4 pre-mRNA-processing factor 4 homolog; | Prpf4b; | NP_001011923.1; | 1007 | rat | 
| A1A5S1 | Pre-mRNA-processing factor 6; PRP6 homolog; U5 snRNP-associated 102 kDa protein; U5-102 kDa protein; | Prpf6; | NP_001073234.1; | 941 | rat | 
| P10165 | Proline-rich proteoglycan 2; Acidic proline-rich protein PRP18; | Prpg2; | NP_742062.1; | 295 | rat | 
| P17438 | Peripherin-2; Retinal degeneration slow protein; | Prph2; Rds; | NP_037153.1; | 346 | rat | 
| P60892 | Ribose-phosphate pyrophosphokinase 1; EC 2.7.6.1; Phosphoribosyl pyrophosphate synthase I; PRS-I; | Prps1; | NP_001009694.1;NP_058939.1;XP_008762879.1; | 318 | rat | 
| P09330 | Ribose-phosphate pyrophosphokinase 2; EC 2.7.6.1; Phosphoribosyl pyrophosphate synthase II; PRS-II; | Prps2; | NP_036766.1; | 318 | rat | 
| Q5U1W2 | Proline-rich protein 13; | Prr13; | NP_001008380.1; | 139 | rat | 
| Q6MG07 | Proline-rich protein 3; MHC class I region proline-rich protein CAT56; | Prr3; Cat56; | NP_997709.1; | 186 | rat | 
| A1L1K1 | Proline-rich protein 5-like; Protein observed with Rictor-2; Protor-2; | Prr5l; Protor2; | NP_001073619.1; | 370 | rat | 
| Q5FVG6 | Proline-rich protein 5; Protein observed with Rictor-1; Protor-1; | Prr5; Protor1; | NP_001012121.1; | 387 | rat | 
| P0C6T3 | Proline-rich protein 7; Synaptic proline-rich membrane protein; | Prr7; | NP_001102586.1;XP_006253714.1; | 269 | rat | 
