Consensus terms for the HPT domain 

EVGS_ECOLI       NTANDL-QLMQEILMTFQHETHKDLPAAFQA----LEAGDNRTFHQCIHRIHGAANILNL
CONSENSUS/80%    ..th.t..hhhp.h..hhp.hpt.l.tlptt.....s.p.hptlhc.hHpl+Gsuu.hsh
CONSENSUS/65%    hpphhp..hhhp.htphlpphppsl.plpps.....stpthptlhRssHolKGuuuhhGh
CONSENSUS/50%    tp-htc..lFh-Esp-hlpslppsLlcLEcss....sscslsslFRsAHoLKGuAuslGh


EVGS_ECOLI       QKLINISHQLEITPV----SDDSKPEILQLLNSVKEHIAELDQEIAVFC
CONSENSUS/80%    ..htphspthEphht....th.ttp...th..phhthhht.hp.htthh
CONSENSUS/65%    ptltphs+tlEshhc....thppsch..plssplhshhhpsh-hlpshl
CONSENSUS/50%    spLsslsHplEsllc....ssRsucl..plsscLh-lllcutDtlcshl

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