Consensus terms for the H2A domain 

H2AV_DROME/1-1   AGKDSGKA-KAKAVSRSARAGLQFPVGRIHRHLKSRTTSHGRVGATAAVYSAAILEYLTA
CONSENSUS/80%    .ttt.tth.tttt.ppS.+AGLtFPVGRltphL+ptphup.RlGssusVYhAAlLEYLsA
CONSENSUS/65%    spsstttttpppssopSt+AGLpFPVGRltRhL+cGpYAc.RlGuuAsVYLAAVLEYLoA
CONSENSUS/50%    u+uusuctscpcusS+Ss+AGLQFPVGRIcRaL++GpYAc.RVGAGAPVYLAAVLEYLTA


H2AV_DROME/1-1   EVLELAGNASKDL---------------KVKRITPRHLQLAIRG-----DEELDSLIKA-
CONSENSUS/80%    ElLELuspAupp................KhpRlhPRpl.LAlps.....D--LspLhts.
CONSENSUS/65%    ElLELAGNAA+Ds...............K+pRIsPRHlpLAlRs.....DEELspLlts.
CONSENSUS/50%    ElLELAGNAA+Ds...............KKsRIoPRHlpLAlRN.....DEELsKLLsu.


H2AV_DROME/1-1   ---TIAGGGVIP-HIHKSLIGKKEET
CONSENSUS/80%    ..sTlupGGVhP..Ip..Lh.+ptt.
CONSENSUS/65%    ..VTIApGGVlP.sIptsLLsKKstp
CONSENSUS/50%    ..VTIAsGGVLP.NIpssLLPKKssc

The grouping of amino acids to classes and class abbreviation (the key) used within consensus sequences are shown below:

ClassKeyResidues
alcoholoS,T
aliphaticlI,L,V
any.A,C,D,E,F,G,H,I,K,L,M,N,P,Q,R,S,T,V,W,Y
aromaticaF,H,W,Y
chargedcD,E,H,K,R
hydrophobichA,C,F,G,H,I,K,L,M,R,T,V,W,Y
negative-D,E
polarpC,D,E,H,K,N,Q,R,S,T
positive+H,K,R
smallsA,C,D,G,N,P,S,T,V
tinyuA,G,S
turnliketA,C,D,E,G,H,K,N,Q,R,S,T