>gnl|CDD|133453 cd05311, NAD_bind_2_malic_enz, NAD(P) binding domain of malic enzyme (ME), subgroup 2. Malic enzyme (ME), a member of the amino acid dehydrogenase (DH)-like domain family, catalyzes the oxidative decarboxylation of L-malate to pyruvate in the presence of cations (typically Mg++ or Mn++) with the concomitant reduction of cofactor NAD+ or NADP+. ME has been found in all organisms, and plays important roles in diverse metabolic pathways such as photosynthesis and lipogenesis. This enzyme generally forms homotetramers. The conversion of malate to pyruvate by ME typically involves oxidation of malate to produce oxaloacetate, followed by decarboxylation of oxaloacetate to produce pyruvate and CO2. This subfamily consists primarily of archaeal and bacterial ME. Amino acid DH-like NAD(P)-binding domains are members of the Rossmann fold superfamily and include glutamate, leucine, and phenylalanine DHs, methylene tetrahydrofolate DH, methylene-tetrahydromethanopterin DH, methylene-tetrahydropholate DH/cyclohydrolase, Shikimate DH-like proteins, malate oxidoreductases, and glutamyl tRNA reductase. Amino acid DHs catalyze the deamination of amino acids to keto acids with NAD(P)+ as a cofactor. The NAD(P)-binding Rossmann fold superfamily includes a wide variety of protein families including NAD(P)- binding domains of alcohol DHs, tyrosine-dependent oxidoreductases, glyceraldehyde-3-phosphate DH, lactate/malate DHs, formate/glycerate DHs, siroheme synthases, 6-phosphogluconate DH, amino acid DHs, repressor rex, NAD-binding potassium channel domain, CoA-binding, and ornithine cyclodeaminase-like domains. These domains have an alpha-beta-alpha configuration. NAD binding involves numerous hydrogen and van der Waals contacts. Length = 226

 Score =  289 bits (741), Expect = 2e-78
 Identities = 116/241 (48%), Positives = 154/241 (63%), Gaps = 19/241 (7%)

Query: 178 QHGTAVTVTAATLNGMKLVGKKFSDIKIVTLGAGAAALACLNLLVTMGVRRENIWVYDLE 237
           QHGTA+   A  LN +KLVGKK  ++KIV  GAGAA +A   LL+  G + ENI V D +
Sbjct: 1   QHGTAIVTLAGLLNALKLVGKKIEEVKIVINGAGAAGIAIARLLLAAGAKPENIVVVDSK 60

Query: 238 GLVYEGREKKFDKWKSVYAQKSGPKP----LSETMNNADVFLGLSVAGALDPAILKFMAE 293
           G++YEGRE   +  K+  A+++ P+     L E +  ADVF+G+S  G +   ++K MA+
Sbjct: 61  GVIYEGREDDLNPDKNEIAKETNPEKTGGTLKEALKGADVFIGVSRPGVVKKEMIKKMAK 120

Query: 294 KPLIMVLANPNPEAMPDEIKKVRPDAMICTGRSDFSNQVNNVLCFPYIFRGALDCGATAI 353
            P++  LANP PE  P+E K+   D ++ TGRSDF NQVNNVL FP IFRGALD  AT I
Sbjct: 121 DPIVFALANPVPEIWPEEAKEAGAD-IVATGRSDFPNQVNNVLGFPGIFRGALDVRATKI 179

Query: 354 TEEMKVAAARAMAVLVRDVPPDVVFDNFAKESPVFGPNYLIPSPFDPNLISYIAPAVAKA 413
           TEEMK+AAA A+A             + A+E  V G  Y+IP+PFDP ++  +A AVAKA
Sbjct: 180 TEEMKLAAAEAIA-------------DLAEE-EVLGEEYIIPTPFDPRVVPRVATAVAKA 225

Query: 414 A 414
           A
Sbjct: 226 A 226