on , ▁which ▁is ▁an ▁altern atively ▁sp lic ed ▁variant ▁of ▁ex on ▁ 8 . ▁Vari ant ▁D ▁contains ▁five ▁ex ons ▁( 1 - 4 , ▁ 5 a ) ▁with ▁ 1 - 4 ▁occurr ing ▁in ▁their ▁standard ▁form ▁and ▁an ▁alternative ▁form ▁of ▁ex on ▁ 5 . ▁Vari ant ▁E ▁contains ▁three ▁ex ons , ▁which ▁are ▁altern atively ▁sp lic ed ▁forms ▁of ▁ex ons ▁ 3 , ▁ 4 , ▁and ▁ 5 . ▁Vari ant ▁F - U ▁contains ▁one ▁ex on , ▁which ▁is ▁an ▁altern atively ▁sp lic ed ▁form ▁of ▁ex on ▁ 5 a , ▁which ▁occurs ▁in ▁variant ▁D . ▁ ▁Con ser ved ▁Dom ains ▁ ▁There ▁is ▁a ▁domain , ▁D U F 4 5 9 6 , ▁present ▁from ▁ 1 3 1 1 ▁- ▁ 1 3 5 4 ▁in ▁K I AA 1 1 0 7 . ▁The ▁function ▁of ▁this ▁domain ▁is ▁unknown . ▁ ▁Expression ▁ ▁T issue ▁Expression ▁ ▁Expression ▁of ▁K I AA 1 1 0 7 ▁does ▁not ▁appear ▁to ▁be ▁u bi quit ous ▁in ▁H omo ▁s api ens . ▁K I AA 1 1 0 7 ▁is ▁found ▁to ▁be ▁expressed ▁mostly ▁in ▁the ▁brain , ▁with ▁lower ▁levels ▁of ▁expression ▁occurr ing ▁in ▁the ▁bl ad der , ▁m amm ary ▁g land , ▁mus cle , ▁pro state , ▁and ▁test is . ▁ ▁Within ▁the ▁brain , ▁K I AA 1 1