>cd04879 ACT_3PGDH-like ACT_3PGDH-like CD includes the C-terminal ACT (regulatory) domain of D-3-phosphoglycerate dehydrogenase (3PGDH). ACT_3PGDH-like: The ACT_3PGDH-like CD includes the C-terminal ACT (regulatory) domain of D-3-phosphoglycerate dehydrogenase (3PGDH), with or without an extended C-terminal (xct) region found in various bacteria, archaea, fungi, and plants. 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 bacteria, 3PGDH is feedback controlled by the end product L-serine in an allosteric manner. In the Escherichia coli 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

Probab=96.99  E-value=0.0013  Score=45.46  Aligned_cols=65  Identities=11%  Similarity=0.205  Sum_probs=42.2

Q ss_pred             EEEECCCCCHHHHHHHHHHHCCCCEEEEEECCCCCCCCEEEEEEEEEECCHHHHHHHHHHHHCCCCCCC
Q ss_conf             999248887489999998866995788882267787761359999210488999999998623830004
Q gi|254780900|r  357 RLTIRNFEGILDKITSQMSDFNISLRLFSCPHQEENSQEFSVFMITHKVSGKLIRDAIECFNGKSDAIR  425 (438)
Q Consensus       357 Rl~v~DkpGVLa~It~ilak~~ISIesi~Q~~~~~~~~~~~IViiTh~~~e~~i~~ai~~i~~l~~v~~  425 (438)
T Consensus         3 ~v~~~D~PGvi~~I~~~L~~~~iNI~~m~l~r-~~~g~~A~~ii~vD~~v~~~---~l~~i~~~~~v~~   67 (71)
T cd04879           3 LIVHKDVPGVIGKVGTILGEHGINIAAMQVGR-KEKGGIAYMVLDVDSPVPEE---VLEELKALPGIIR   67 (71)
T ss_pred             EEEECCCCCHHHHHHHHHHHCCCCHHHHHHCC-CCCCCEEEEEEEECCCCCHH---HHHHHHCCCCEEE
T ss_conf             89943979989999999998597889964123-67997589999908989999---9999976998089