Accession ID Name Pfam Type
PF03972 MmgE/PrpD N-terminal domain domain

This entry represents the N-terminal domain of 2-methylcitrate dehydratase EC:4.2.1.79 (PrpD) that is required for propionate catabolism. It catalyses the third step of the 2-methylcitric acid cycle [1]. This enzyme consists of two domains: a large domain with an all-helical fold and a smaller domain that folds into an alpha/beta domain [2]. Cis-aconitic acid decarboxylase (CAD) shares high identity with proteins of the MmgE/PrpD family [3,4]. Citrate/2-methylcitrate dehydratase from Bacillus subtilis is involved in the tricarboxylic acid (TCA) and methylcitric acid cycles as it has both 2-methylcitrate dehydratase and citrate dehydratase activities [5]. This entry represents the N-terminal domain of 2-methylcitrate dehydratase PrpD, which has an all-helical fold.
Pfam Range: 5-247 DPAM-Pfam Range: 1-260,416-454
Uniprot ID: S0EUW8
Pfam Range: 51-308 DPAM-Pfam Range: 49-321,472-525
Uniprot ID: A7TSJ9
Pfam Range: 4-238 DPAM-Pfam Range: 1-268,423-466
Uniprot ID: R9SKK7

References

1: In vitro conversion of propionate to pyruvate by Salmonella enterica enzymes: 2-methylcitrate dehydratase (PrpD) and aconitase Enzymes catalyze the conversion of 2-methylcitrate to 2-methylisocitrate. Horswill AR, Escalante-Semerena JC; Biochemistry 2001;40:4703-4713. PMID:11294638

2: Three-dimensional structure of iminodisuccinate epimerase defines the fold of the MmgE/PrpD protein family. Lohkamp B, Bauerle B, Rieger PG, Schneider G; J Mol Biol. 2006;362:555-566. PMID:16934291

3: Crystal structure of cis-aconitate decarboxylase reveals the impact of naturally occurring human mutations on itaconate synthesis. Chen F, Lukat P, Iqbal AA, Saile K, Kaever V, van den Heuvel J, Blankenfeldt W, Bussow K, Pessler F; Proc Natl Acad Sci U S A. 2019;116:20644-20654. PMID:31548418

4: Cloning and functional characterization of the cis-aconitic acid decarboxylase (CAD) gene from Aspergillus terreus. Kanamasa S, Dwiarti L, Okabe M, Park EY; Appl Microbiol Biotechnol. 2008;80:223-229. PMID:18584171

5: First Biochemical Characterization of a Methylcitric Acid Cycle from Bacillus subtilis Strain 168. Reddick JJ, Sirkisoon S, Dahal RA, Hardesty G, Hage NE, Booth WT, Quattlebaum AL, Mills SN, Meadows VG, Adams SLH, Doyle JS, Kiel BE; Biochemistry. 2017;56:5698-5711. PMID:28956599