▁bundle ▁st alk . ▁Pro ceed ings ▁of ▁the ▁National ▁Academy ▁of ▁Sciences ▁( 2 0 1 1 ) ▁F usion ▁activation ▁by ▁a ▁head less ▁par ain fl uen za ▁virus ▁ 5 ▁hem ag gl ut in in - neur amin id ase ▁st alk ▁suggests ▁a ▁mod ular ▁mechanism ▁for ▁trigger ing . ▁Pro ceed ings ▁of ▁the ▁National ▁Academy ▁of ▁Sciences ▁( 2 0 1 2 ) ▁Vir al ▁M emb rane ▁Sc isson . ▁Ann ual ▁Review ▁of ▁Cell ▁and ▁Development al ▁Bi ology ▁( 2 0 1 3 ) ▁Str ucture ▁and ▁stabil ization ▁of ▁the ▁Hend ra ▁virus ▁F ▁g ly cop rote in ▁in ▁its ▁pre f usion ▁form . ▁Pro ceed ings ▁of ▁the ▁National ▁Academy ▁of ▁Sciences ▁( 2 0 1 2 ) ▁Activ ation ▁of ▁param y x ov irus ▁memb rane ▁fusion ▁and ▁vir al ▁entry . ▁ ▁Current ▁Op in ion ▁in ▁V iro log y ▁( 2 0 1 4 ) ▁Pro bing ▁the ▁functions ▁of ▁the ▁param y x ov irus ▁g ly cop rote ins ▁F ▁and ▁H N ▁with ▁a ▁panel ▁of ▁synth etic ▁ant ib od ies ▁( s AB s ). ▁Journal ▁of ▁V iro log y ▁( 2 0 1 4 ) ▁ ▁References ▁▁ ▁Category : 1 9 5 0 ▁birth s ▁Category : L iving ▁people ▁Category : N orth western ▁University ▁fac ulty ▁Category : B rit ish ▁v iro log ists ▁Category : Al umn i ▁of ▁the ▁University