PRI2 DNAprim DNA polymerase alpha 60kD subunit GM13640 DNA replication primer DNA primase Pol S(faf)240 Dmel\CG5553 CG5553 Dmpol alpha DNA polymerase alpha 58,000 beta subunit DNApol-alpha60 Prim2-PA DNA polalpha BcDNA:GM13640 pol alpha DNAprimase l(3)77ABe l(3)j10B2 DNA polymerase alpha 60kD CG5553-PA Polalpha 60 kDa DNA polymerase alpha 60,000 beta subunit polalpha