| Identifier | Protein names | Gene names | Cross reference refseq | Length | Species | 
| Q18223 | F-box/SPRY domain-containing protein 1; F-box synaptic protein 1; | fsn-1; | NP_498046.1; | 332 | c.elegen | 
| Q11092 | F-box C protein 38; | fbxc-38; | NP_509372.2; | 272 | c.elegen | 
| P17221 | Sex-determining protein fem-1; Feminization of XX and XO animals protein 1; | fem-1; isx-1; | NP_500824.1;NP_500825.1; | 656 | c.elegen | 
| P49594 | Ca(2+)/calmodulin-dependent protein kinase phosphatase; CaM-kinase phosphatase; CaMKPase; EC 3.1.3.16; Feminization of XX and XO animals protein 2; Sex-determining protein fem-2; | fem-2; | NP_497224.1; | 449 | c.elegen | 
| P34691 | Sex-determination protein fem-3; Ce-FEM-3; Feminization of XX and XO animals protein 3; | fem-3; | NP_001255365.1; | 388 | c.elegen | 
| Q9N3T2 | Flap endonuclease 1; FEN-1; EC 3.1.-.-; Cell death-related nuclease 1; Flap structure-specific endonuclease 1; | crn-1; | NP_491168.1; | 382 | c.elegen | 
| Q17388 | Sperm vesicle fusion protein fer-1; | fer-1; | NP_492337.1; | 2034 | c.elegen | 
| O44827 | Facilitated glucose transporter protein 1; | fgt-1; | NP_493981.1;NP_493982.1; | 510 | c.elegen | 
| O44616 | Facilitated glucose transporter homolog; | NULL | NP_503413.2; | 516 | c.elegen | 
| Q23544 | Adenosine monophosphate-protein transferase FICD homolog; EC 2.7.7.n1; | NULL | NP_502036.1; | 508 | c.elegen | 
| O16299 | Fidgetin-like protein 1; EC 3.6.4.-; Fidgetin homolog; | figl-1; | NP_504197.1; | 594 | c.elegen | 
| P34407 | Fungus-induced protein 1; | fip-1; | NP_498904.1; | 63 | c.elegen | 
| P34300 | Fungus-induced protein 3; | fip-3; | NP_498888.1; | 50 | c.elegen | 
| Q19408 | Fungus-induced-related protein 15; | fipr-15; | NP_502019.2; | 50 | c.elegen | 
| P34301 | Fungus-induced-related protein 16; | fipr-16; | NP_498890.1; | 49 | c.elegen | 
| Q5CZ37 | FIT family protein ZK265.9; | NULL | NP_001021865.1; | 283 | c.elegen | 
| Q19802 | Putative forkhead-related transcription factor fkh-5; | fkh-5; | NP_498003.2; | 461 | c.elegen | 
| O17798 | Furin-like protease kpc-1; EC 3.4.21.-; | kpc-1; | NP_001021101.1;NP_492974.2; | 760 | c.elegen | 
| Q22017 | Probable FAD synthase; EC 2.7.7.2; FAD pyrophosphorylase; FMN adenylyltransferase; Flavin adenine dinucleotide synthase; | NULL | NP_001022286.1;NP_001022287.1; | 519 | c.elegen | 
| P34268 | Protein flightless-1 homolog; | fli-1; | NP_498913.2; | 1257 | c.elegen | 


