520458 eIF4A eukaryotic initiation factor 4A 77 520457 eIF4A eukaryotic translation initiation factor 4A 44 520465 eIF-4A Eukaryotic protein synthesis initiation factor 4A 2 520464 eIF-4A encoding wheat translation initiation factor 4A 1 520466 eIF-4A Purified initiation factor 4A 1 520463 eIF-4A synthesis initiation factor 4A 1