1 9 6 3 , ▁the ▁Elect ra ▁also ▁had ▁upgrad ed ▁ 1 2 v ▁elect rics ▁to ▁supply ▁power ▁to ▁the ▁st arter , ▁handle bar - end ▁direction ▁indic ators ▁and ▁heavy weight ▁rear ▁bra ke . ▁The ▁bi ke ▁was ▁inst ig ated ▁by ▁the ▁Berliner ▁Motor ▁Corporation ▁and ▁was ▁the ▁first ▁N orton ▁to ▁be ▁produced ▁at ▁the ▁Pl um st ead , ▁London ▁Associ ated ▁Motor ▁Cy cles ▁plant . ▁The ▁Elect ra ' s ▁un re li able ▁starting , ▁heavy ▁fuel ▁consumption ▁and ▁engine ▁v ibration ▁resulted ▁in ▁poor ▁sales . ▁The ▁model ▁was ▁dropped ▁in ▁ 1 9 6 5 ▁after ▁just ▁two ▁years ▁of ▁production . ▁ ▁References ▁ ▁External ▁links ▁ ▁N orton ▁N avigator ▁review ▁ ▁N avigator ▁Category : M ot or cy cles ▁introduced ▁in ▁ 1 9 6 0 <0x0A> </s> ▁Sh q 1 p ▁is ▁a ▁protein ▁involved ▁in ▁the ▁r R NA ▁processing ▁path way . ▁ ▁It ▁was ▁discovered ▁by ▁Pok ▁Yang ▁in ▁the ▁Chan fre au ▁labor atory ▁at ▁U CLA . ▁ ▁De ple tion ▁of ▁Sh q 1 p ▁has ▁led ▁to ▁decre ased ▁level ▁of ▁various ▁H / AC A ▁box ▁s no R N As ▁( H / AC A ▁box ▁s no R N As ▁are ▁responsible ▁for ▁pseud ur id yl ation ▁of ▁pre - r R NA ) ▁and ▁certain ▁pre - r R NA ▁inter medi ates . ▁ ▁Background ▁▁ ▁During ▁the ▁synth esis ▁of