RPSBLAST alignment for GI: 254780889 and conserved domain: cd04588

>gnl|CDD|73088 cd04588, CBS_pair_CAP-ED_DUF294_assoc_arch, This cd contains two tandem repeats of the cystathionine beta-synthase (CBS pair) domains associated with the archaeal CAP_ED (cAMP receptor protein effector domain) family of transcription factors and the DUF294 domain. Members of CAP_ED, include CAP which binds cAMP, FNR (fumarate and nitrate reductase) which uses an iron-sulfur cluster to sense oxygen, and CooA a heme containing CO sensor. In all cases binding of the effector leads to conformational changes and the ability to activate transcription. DUF294 is a putative nucleotidyltransferase with a conserved DxD motif. CBS is a small domain originally identified in cystathionine beta-synthase and subsequently found in a wide range of different proteins. CBS domains usually come in tandem repeats, which associate to form a so-called Bateman domain or a CBS pair which is reflected in this model. The interface between the two CBS domains forms a cleft that is a potential ligand binding site. The CBS pair coexists with a variety of other functional domains. It has been proposed that the CBS domain may play a regulatory role, although its exact function is unknown.. Length = 110
 Score = 71.0 bits (174), Expect = 6e-13
 Identities = 42/110 (38%), Positives = 66/110 (60%), Gaps = 5/110 (4%)

Query: 102 PVTISPYATLADALALMKKYSISGIPVVESDVGKLVGILTNRDVR---FASNAQQAVGEL 158
            +T++P ATL +A  L   + I G PVV  D GKLVGI+T  D+            V ++
Sbjct: 3   LITLNPNATLREAARLFNTHHIHGAPVV--DDGKLVGIVTLSDIAHAIARGLELAKVKDV 60

Query: 159 MTRNLITVKKTVNLENAKALLHQHRIEKLLVVDDDGCCIGLITVKDIERS 208
           MT+++IT+ +   L +A  L+++H + +L+V DD+G  +G+IT  DI RS
Sbjct: 61  MTKDVITIDEDEQLYDAIRLMNKHNVGRLIVTDDEGRPVGIITRTDILRS 110