Protein: Probable methyltransferase tdiE (A7XRZ1)
Organism: Emericella nidulans (strain FGSC A4 / ATCC 38163 / CBS 112.46 / NRRL 194 /
Function: Probable methyltransferase; part of the gene cluster that mediates the biosynthesis of terrequinone A, an antitumor agent. The first step in the biosynthetic pathway for terrequinone A is formation of indole pyruvic acid (IPA) from L-tryptophan by the aminotransferase tdiD. The nonribosomal peptide synthase tdiA then immediately converts unstable IPA to didemethylasterriquinone D (DDAQ D), via condensation of 2 IPA molecules. The symmetric connectivity of the 2 IPA molecules is thought to arise by head-to-tail dual Claisen condensations facilitated by the TE domain. TdiB then catalyzes reverse prenylation by transferring dimethylallyl diphosphate to carbon atom 2' of DDAQ D, to yield asterriquinone C-1. Finally, tdiC and tdiE enzymes robustly convert asterriquinone C-1 to terrequinone A via a transformation involving regular prenylation at carbon atom 5, which requires elimination of the hydroxy group on C-5
Sequence: MVNRPYANMNDLANAVAESVQKYLDNSGQARNGLFQKTNNGERDIETERLALQHQLFHLTLDGKLQLSPLPSPVQSVLDIATGDSTWVHAFAEQNPSAYIVANDPSPTSKIPLGLSVIPDASDANEPWTYTRQFDFVHCRQHHRRLDEPRLFKQAFSSLTPGGWLEMQELSNPVTSDDGTLSENNPLSQWGRLLIEASKKMNRPVDNPAKYETWMREAGFVNCHTVAYNWPTNPWPADEKGKTLGLWNLYNVLQRFEEFSVALLVKVLGWEMDDAKTFLGNVKEELMNEGVHGYWPVYVVYGQKPAAPGSDVITDSE
InterPro domains: - IPR029063: S-adenosyl-L-methionine-dependent methyltransferase superfamily (homologous_superfamily) [3-305]
Interaction partners: - Aminotransferase tdiD
- Probable NADPH-dependent quinone reductase tdiC
- Indole prenyltransferase tdiB
Gene Ontology annotations:
Molecular Function (MF): GO:0003674 (molecular function), GO:0003824 (catalytic activity), GO:0016740 (transferase activity), GO:0016741 (transferase activity, transferring one-carbon groups), GO:0008168 (methyltransferase activity), GO:0008757 (S-adenosylmethionine-dependent methyltransferase activity)
Biological Process (BP): GO:0008150 (biological process), GO:0008152 (metabolic process), GO:0009987 (cellular process), GO:0009058 (biosynthetic process), GO:0044237 (cellular metabolic process), GO:0044281 (small molecule metabolic process), GO:0006807 (nitrogen compound metabolic process), GO:0019748 (secondary metabolic process), GO:0071704 (organic substance metabolic process), GO:0044550 (secondary metabolite biosynthetic process), GO:0042180 (cellular ketone metabolic process), GO:1901615 (organic hydroxy compound metabolic process), GO:1901360 (organic cyclic compound metabolic process), GO:1901564 (organonitrogen compound metabolic process), GO:1901576 (organic substance biosynthetic process), GO:0044283 (small molecule biosynthetic process), GO:0120254 (olefinic compound metabolic process), GO:0044249 (cellular biosynthetic process), GO:0006066 (alcohol metabolic process), GO:0009404 (toxin metabolic process), GO:0006725 (cellular aromatic compound metabolic process), GO:0034641 (cellular nitrogen compound metabolic process), GO:0043603 (amide metabolic process), GO:0018904 (ether metabolic process), GO:0030638 (polyketide metabolic process), GO:1901566 (organonitrogen compound biosynthetic process), GO:1902652 (secondary alcohol metabolic process), GO:1901503 (ether biosynthetic process), GO:1901362 (organic cyclic compound biosynthetic process), GO:0043385 (mycotoxin metabolic process), GO:0120255 (olefinic compound biosynthetic process), GO:0009403 (toxin biosynthetic process), GO:1902644 (tertiary alcohol metabolic process), GO:0019438 (aromatic compound biosynthetic process), GO:1901617 (organic hydroxy compound biosynthetic process), GO:0043604 (amide biosynthetic process), GO:0044271 (cellular nitrogen compound biosynthetic process), GO:0042181 (ketone biosynthetic process), GO:0046165 (alcohol biosynthetic process), GO:0030639 (polyketide biosynthetic process), GO:0018958 (phenol-containing compound metabolic process), GO:0043386 (mycotoxin biosynthetic process), GO:1902645 (tertiary alcohol biosynthetic process), GO:1902653 (secondary alcohol biosynthetic process), GO:0046189 (phenol-containing compound biosynthetic process)
Cellular Component (CC): GO:0005575 (cellular component), GO:0110165 (cellular anatomical entity), GO:0005737 (cytoplasm), GO:0005622 (intracellular anatomical structure)