HHsearch alignment for GI: 254780781 and conserved domain: TIGR01172

>TIGR01172 cysE serine O-acetyltransferase; InterPro: IPR005881 The biosynthesis of L-cysteine is the predominant way by which inorganic sulphur is incorporated into organic compounds. In this process, the most abundant utilizable source of sulphur, inorganic sulphate, is taken up and reduced to sulphide. Sulphide is used to produce L-cysteine, which serves for protein synthesis or the production of other sulphur-containing organic compounds. Two routes for cysteine biosynthesis in nature have been documented. Serine transacetylase (2.3.1.30 from EC) catalyzes steps in pathway I, the activation of L-serine by acetyl-coenzyme A, yielding O-acetyl-L-serine.; GO: 0009001 serine O-acetyltransferase activity, 0006535 cysteine biosynthetic process from serine, 0005737 cytoplasm.
Probab=99.77  E-value=1.2e-18  Score=134.77  Aligned_cols=93  Identities=35%  Similarity=0.555  Sum_probs=77.7

Q ss_pred             CCCCCCCCCCC--CCCEECCEEEECCCCEEECCCEECCE-ECCC-CCCCEEECCCCEEECCCEEECCEEECCCCEEEEEE
Q ss_conf             35336772015--66123220473068688123211210-0577-65644872584782185784688845885663004
Q gi|254780781|r  137 GAYIGEGSMID--TWSTVGSCAQIGKNVHISGGVGIGGV-LEPI-QTGPTIIEDNCFIGARSEIVEGCIIREGSVLGMGV  212 (285)
Q Consensus       137 GA~Ig~gt~I~--~~a~IG~~a~IG~~vhI~~g~~IGGv-lep~-~a~pviIeD~v~IGa~s~I~~Gv~Ig~gavIgaG~  212 (285)
T Consensus        67 gA~IG~g~fIDHg~GvVIGETa~iGddv~iyhGVTLGGtgk~~G~kRHPt-~~~gV~iGAGAKvLG~I~vG~~AkiGAns  145 (163)
T TIGR01172        67 GARIGRGVFIDHGTGVVIGETAEIGDDVTIYHGVTLGGTGKEKGVKRHPT-IGEGVVIGAGAKVLGNIEVGENAKIGANS  145 (163)
T ss_pred             CCCCCCEEEEECCCCEEEEEEEEECCCEEEEECEEECCCCCCCCCCCCCC-CCCCEEEEECCEEECCEEECCCCEECCCE
T ss_conf             43007730777560368500368738837863212067888878898882-56871784078240376677997772332


Q ss_pred             EECCCCEEEECCCCCEEEEECCCC
Q ss_conf             652783368715881464454998
Q gi|254780781|r  213 FIGKSTKIIDRNTGEITYGEVPSY  236 (285)
Q Consensus       213 vit~st~i~d~~~~~~~~g~vP~~  236 (285)
T Consensus       146 VVl~-----dVP~~~TVVG-vPar  163 (163)
T TIGR01172       146 VVLK-----DVPAGATVVG-VPAR  163 (163)
T ss_pred             EECC-----CCCCCCEEEE-ECCC
T ss_conf             6735-----3789865874-3589