[{_id:ObjectId("5f4ceabe521de56d99738fd4"),position:11,entropy:0.4582005345072268,supports:61,sequences:[{position:11,sequence:"CLVFAQKIP",count:56,conservation:91.80327868852459,motif_short:"I",motif_long:"Index",id:["ASU55526.1","ASU55528.1","QBM69729.1","QJR40421.1"],strain:["Influenza A virus A/Shandong-Zhifu/164/2016","Influenza A virus A/Shandong-Zhifu/1185/2016","Influenza A virus A/China/71517/2016","Influenza A virus A/Jiangxi/2017lgfh0026/2016"],country:["HA Hemagglutinin","HA Hemagglutinin","HA Hemagglutinin","HA Hemagglutinin"],host:["Influenza A virus A/Shandong-Zhifu/164/2016","Influenza A virus A/Shandong-Zhifu/1185/2016","Influenza A virus A/China/71517/2016","Influenza A virus A/Jiangxi/2017lgfh0026/2016"]},{position:11,sequence:"CLVFAQKLP",count:4,conservation:6.557377049180328,motif_short:"Ma",motif_long:"Major",id:["APQ31289.1","APQ31290.1","QJR40413.1","QJR40414.1"],strain:["Influenza A virus A/Xiamen/s200/2016","Influenza A virus A/Xiamen/s175/2016","Influenza A virus A/Jiangxi/2016lgfh1021/2016","Influenza A virus A/Jiangxi/2017lgfh0045/2016"],country:["HA Hemagglutinin","HA Hemagglutinin","HA Hemagglutinin","HA Hemagglutinin"],host:["Influenza A virus A/Xiamen/s200/2016","Influenza A virus A/Xiamen/s175/2016","Influenza A virus A/Jiangxi/2016lgfh1021/2016","Influenza A virus A/Jiangxi/2017lgfh0045/2016"]},{position:11,sequence:"CLDFAQKIP",count:1,conservation:1.639344262295082,motif_short:"U",motif_long:"Unique",id:["APQ31291.1"],strain:["Influenza A virus A/Xiamen/s228/2016"],country:["HA Hemagglutinin"],host:["Influenza A virus A/Xiamen/s228/2016"]}],variants:3}]

db.collection.aggregate([{"$unwind":"$sequences"},{"$match":{"sequences.motif_short":{"$eq":"I"}}},{"$project":{"sequences":1,"_id":0}}])