RPSBLAST alignment for GI: 254780889 and conserved domain: cd04601

>gnl|CDD|73101 cd04601, CBS_pair_IMPDH, This cd contains two tandem repeats of the cystathionine beta-synthase (CBS pair) domains in the inosine 5' monophosphate dehydrogenase (IMPDH) protein. IMPDH is an essential enzyme that catalyzes the first step unique to GTP synthesis, playing a key role in the regulation of cell proliferation and differentiation. 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. Mutations of conserved residues within this domain in IMPDH have been associated with retinitis pigmentosa.. Length = 110
 Score =  151 bits (384), Expect = 3e-37
 Identities = 63/111 (56%), Positives = 85/111 (76%), Gaps = 2/111 (1%)

Query: 99  VVNPVTISPYATLADALALMKKYSISGIPVVESDVGKLVGILTNRDVRFASNAQQAVGEL 158
           + +P+T+SP AT+A+AL LM +Y ISG+PVV+ D GKLVGI+TNRD+RF ++  + V E+
Sbjct: 1   IRDPITVSPDATVAEALELMAEYGISGLPVVDDD-GKLVGIVTNRDLRFETDLDKPVSEV 59

Query: 159 MTR-NLITVKKTVNLENAKALLHQHRIEKLLVVDDDGCCIGLITVKDIERS 208
           MT  NL+T  +  +LE A  LLH+H+IEKL VVDD+G   GLITVKDIE+ 
Sbjct: 60  MTPENLLTTVEGTSLEEALELLHEHKIEKLPVVDDEGKLKGLITVKDIEKR 110