HHsearch alignment for GI: 254780911 and conserved domain: cd04901

>cd04901 ACT_3PGDH C-terminal ACT (regulatory) domain of D-3-Phosphoglycerate Dehydrogenase (3PGDH) found in fungi and bacteria. The C-terminal ACT (regulatory) domain of D-3-Phosphoglycerate Dehydrogenase (3PGDH) found in fungi and bacteria. 3PGDH is an enzyme that belongs to the D-isomer specific, 2-hydroxyacid dehydrogenase family and catalyzes the oxidation of D-3-phosphoglycerate to 3- phosphohydroxypyruvate, which is the first step in the biosynthesis of L-serine, using NAD+ as the oxidizing agent. In Escherichia coli, the SerA 3PGDH is feedback-controlled by the end product L-serine in an allosteric manner. In the homotetrameric enzyme, the interface at adjacent ACT (regulatory) domains couples to create an extended beta-sheet. Each regulatory interface forms two serine-binding sites. The mechanism by which serine transmits inhibition to the active site is postulated to involve the tethering of the regulatory domains together to create a rigid quaternary structure with a solvent-
Probab=93.08  E-value=0.22  Score=30.46  Aligned_cols=59  Identities=10%  Similarity=0.098  Sum_probs=39.5

Q ss_pred             EEEECCCCCCHHHHHHHHHHHCCCCEEEEEEEECCCCCEEEEEEEEECCCCHHHHHHHHHHH
Q ss_conf             99985998766888999998579818973444324368899999997288527779888987
Q gi|254780911|r    6 LTITCPSNEEITSIIPDYLSTQGCNILDISQFNDLDTSKLFMRISFVFNTCMKLFIADFQPI   67 (288)
Q Consensus         6 Lti~CpD~~GIVA~VT~~La~~g~NI~~~~Q~~D~~~~~FFmRi~f~~~~~~~~l~~~f~~i   67 (288)
T Consensus         2 i~~ih~NvPG~l~~I~~il~~~~iNI~~m--~~~srg~~ay~vidvd~~~~-~~~~~~l~~i   60 (69)
T cd04901           2 ILHIHKNVPGVLGQINTILAEHNINIAAQ--YLQTRGEIGYVVIDIDSEVS-EELLEALRAI   60 (69)
T ss_pred             EEEEECCCCCHHHHHHHHHHHCCCCHHHH--CCCCCCCEEEEEEEECCCCC-HHHHHHHHCC
T ss_conf             66871698868999999999859997997--24268976899999079898-9999999729