EASD_CLAPU
ID EASD_CLAPU Reviewed; 261 AA.
AC O94207;
DT 15-MAR-2017, integrated into UniProtKB/Swiss-Prot.
DT 01-MAY-1999, sequence version 1.
DT 03-AUG-2022, entry version 84.
DE RecName: Full=Chanoclavine-I dehydrogenase easD {ECO:0000250|UniProtKB:Q4WZ66};
DE Short=ChaDH {ECO:0000250|UniProtKB:Q4WZ66};
DE EC=1.1.1.332 {ECO:0000250|UniProtKB:Q4WZ66};
DE AltName: Full=Ergot alkaloid synthesis protein D {ECO:0000303|PubMed:17720822};
DE AltName: Full=Oxidoreductase 2 {ECO:0000303|PubMed:10071219};
DE Flags: Precursor;
GN Name=easD {ECO:0000303|PubMed:17720822};
GN Synonyms=cpox2 {ECO:0000303|PubMed:10071219};
OS Claviceps purpurea (Ergot fungus) (Sphacelia segetum).
OC Eukaryota; Fungi; Dikarya; Ascomycota; Pezizomycotina; Sordariomycetes;
OC Hypocreomycetidae; Hypocreales; Clavicipitaceae; Claviceps.
OX NCBI_TaxID=5111;
RN [1]
RP NUCLEOTIDE SEQUENCE [GENOMIC DNA], FUNCTION, AND IDENTIFICATION IN THE EAS
RP CLUSTER.
RC STRAIN=P1 / 1029/N5;
RX PubMed=10071219; DOI=10.1007/s004380050950;
RA Tudzynski P., Hoelter K., Correia T.H., Arntz C., Grammel N., Keller U.;
RT "Evidence for an ergot alkaloid gene cluster in Claviceps purpurea.";
RL Mol. Gen. Genet. 261:133-141(1999).
RN [2]
RP BIOTECHNOLOGY.
RC STRAIN=P1 / 1029/N5;
RX PubMed=11778866; DOI=10.1007/s002530100801;
RA Tudzynski P., Correia T., Keller U.;
RT "Biotechnology and genetics of ergot alkaloids.";
RL Appl. Microbiol. Biotechnol. 57:593-605(2001).
RN [3]
RP FUNCTION.
RX PubMed=14700635; DOI=10.1016/j.chembiol.2003.11.013;
RA Correia T., Grammel N., Ortel I., Keller U., Tudzynski P.;
RT "Molecular cloning and analysis of the ergopeptine assembly system in the
RT ergot fungus Claviceps purpurea.";
RL Chem. Biol. 10:1281-1292(2003).
RN [4]
RP FUNCTION.
RC STRAIN=ATCC 20102 / Farmitalia FI 32/17;
RX PubMed=14732265; DOI=10.1016/j.fgb.2003.10.002;
RA Wang J., Machado C., Panaccione D.G., Tsai H.-F., Schardl C.L.;
RT "The determinant step in ergot alkaloid biosynthesis by an endophyte of
RT perennial ryegrass.";
RL Fungal Genet. Biol. 41:189-198(2004).
RN [5]
RP FUNCTION, AND IDENTIFICATION IN THE EAS CLUSTER.
RX PubMed=15904941; DOI=10.1016/j.phytochem.2005.04.011;
RA Haarmann T., Machado C., Lubbe Y., Correia T., Schardl C.L.,
RA Panaccione D.G., Tudzynski P.;
RT "The ergot alkaloid gene cluster in Claviceps purpurea: extension of the
RT cluster sequence and intra species evolution.";
RL Phytochemistry 66:1312-1320(2005).
RN [6]
RP FUNCTION.
RC STRAIN=P1 / 1029/N5;
RX PubMed=16538694; DOI=10.1002/cbic.200500487;
RA Haarmann T., Ortel I., Tudzynski P., Keller U.;
RT "Identification of the cytochrome P450 monooxygenase that bridges the
RT clavine and ergoline alkaloid pathways.";
RL ChemBioChem 7:645-652(2006).
RN [7]
RP FUNCTION.
RX PubMed=17308187; DOI=10.1128/aem.00257-07;
RA Fleetwood D.J., Scott B., Lane G.A., Tanaka A., Johnson R.D.;
RT "A complex ergovaline gene cluster in epichloe endophytes of grasses.";
RL Appl. Environ. Microbiol. 73:2571-2579(2007).
RN [8]
RP FUNCTION.
RX PubMed=17720822; DOI=10.1128/aem.01040-07;
RA Lorenz N., Wilson E.V., Machado C., Schardl C.L., Tudzynski P.;
RT "Comparison of ergot alkaloid biosynthesis gene clusters in Claviceps
RT species indicates loss of late pathway steps in evolution of C.
RT fusiformis.";
RL Appl. Environ. Microbiol. 73:7185-7191(2007).
RN [9]
RP FUNCTION.
RX PubMed=17560817; DOI=10.1016/j.fgb.2007.04.008;
RA Haarmann T., Lorenz N., Tudzynski P.;
RT "Use of a nonhomologous end joining deficient strain (Deltaku70) of the
RT ergot fungus Claviceps purpurea for identification of a nonribosomal
RT peptide synthetase gene involved in ergotamine biosynthesis.";
RL Fungal Genet. Biol. 45:35-44(2008).
RN [10]
RP FUNCTION.
RX PubMed=19139103; DOI=10.1074/jbc.m807168200;
RA Ortel I., Keller U.;
RT "Combinatorial assembly of simple and complex D-lysergic acid alkaloid
RT peptide classes in the ergot fungus Claviceps purpurea.";
RL J. Biol. Chem. 284:6650-6660(2009).
RN [11]
RP FUNCTION.
RX PubMed=20118373; DOI=10.1128/aem.00737-09;
RA Lorenz N., Olsovska J., Sulc M., Tudzynski P.;
RT "Alkaloid cluster gene ccsA of the ergot fungus Claviceps purpurea encodes
RT chanoclavine I synthase, a flavin adenine dinucleotide-containing
RT oxidoreductase mediating the transformation of N-methyl-
RT dimethylallyltryptophan to chanoclavine I.";
RL Appl. Environ. Microbiol. 76:1822-1830(2010).
RN [12]
RP FUNCTION.
RC STRAIN=ATCC 20102 / Farmitalia FI 32/17;
RX PubMed=20735127; DOI=10.1021/ja105785p;
RA Cheng J.Z., Coyle C.M., Panaccione D.G., O'Connor S.E.;
RT "Controlling a structural branch point in ergot alkaloid biosynthesis.";
RL J. Am. Chem. Soc. 132:12835-12837(2010).
RN [13]
RP FUNCTION.
RX PubMed=21409592; DOI=10.1007/s00294-011-0336-4;
RA Goetz K.E., Coyle C.M., Cheng J.Z., O'Connor S.E., Panaccione D.G.;
RT "Ergot cluster-encoded catalase is required for synthesis of chanoclavine-I
RT in Aspergillus fumigatus.";
RL Curr. Genet. 57:201-211(2011).
RN [14]
RP FUNCTION.
RX PubMed=21494745; DOI=10.1039/c0ob01215g;
RA Matuschek M., Wallwey C., Xie X., Li S.M.;
RT "New insights into ergot alkaloid biosynthesis in Claviceps purpurea: an
RT agroclavine synthase EasG catalyses, via a non-enzymatic adduct with
RT reduced glutathione, the conversion of chanoclavine-I aldehyde to
RT agroclavine.";
RL Org. Biomol. Chem. 9:4328-4335(2011).
RN [15]
RP FUNCTION.
RX PubMed=24361048; DOI=10.1016/j.chembiol.2013.11.008;
RA Havemann J., Vogel D., Loll B., Keller U.;
RT "Cyclolization of D-lysergic acid alkaloid peptides.";
RL Chem. Biol. 21:146-155(2014).
CC -!- FUNCTION: Chanoclavine-I dehydrogenase; part of the gene cluster that
CC mediates the biosynthesis of fungal ergot alkaloid (PubMed:10071219,
CC PubMed:14732265, PubMed:14700635, PubMed:15904941, PubMed:17308187,
CC PubMed:17720822). DmaW catalyzes the first step of ergot alkaloid
CC biosynthesis by condensing dimethylallyl diphosphate (DMAP) and
CC tryptophan to form 4-dimethylallyl-L-tryptophan (PubMed:14732265). The
CC second step is catalyzed by the methyltransferase easF that methylates
CC 4-dimethylallyl-L-tryptophan in the presence of S-adenosyl-L-
CC methionine, resulting in the formation of 4-dimethylallyl-L-abrine (By
CC similarity). The catalase easC and the FAD-dependent oxidoreductase
CC easE then transform 4-dimethylallyl-L-abrine to chanoclavine-I which is
CC further oxidized by easD in the presence of NAD(+), resulting in the
CC formation of chanoclavine-I aldehyde (PubMed:20118373,
CC PubMed:21409592). Agroclavine dehydrogenase easG then mediates the
CC conversion of chanoclavine-I aldehyde to agroclavine via a non-
CC enzymatic adduct reaction: the substrate is an iminium intermediate
CC that is formed spontaneously from chanoclavine-I aldehyde in the
CC presence of glutathione (PubMed:20735127, PubMed:21494745). The
CC presence of easA is not required to complete this reaction
CC (PubMed:21494745). Further conversion of agroclavine to paspalic acid
CC is a two-step process involving oxidation of agroclavine to
CC elymoclavine and of elymoclavine to paspalic acid, the second step
CC being performed by the elymoclavine oxidase cloA (PubMed:16538694,
CC PubMed:17720822). Paspalic acid is then further converted to D-lysergic
CC acid (PubMed:15904941). Ergopeptines are assembled from D-lysergic acid
CC and three different amino acids by the D-lysergyl-peptide-synthetases
CC composed each of a monomudular and a trimodular nonribosomal peptide
CC synthetase subunit (PubMed:14700635, PubMed:15904941). LpsB and lpsC
CC encode the monomodular subunits responsible for D-lysergic acid
CC activation and incorporation into the ergopeptine backbone
CC (PubMed:14700635). LpsA1 and A2 subunits encode the trimodular
CC nonribosomal peptide synthetase assembling the tripeptide portion of
CC ergopeptines (PubMed:14700635). LpsA1 is responsible for formation of
CC the major ergopeptine, ergotamine, and lpsA2 for alpha-ergocryptine,
CC the minor ergopeptine of the total alkaloid mixture elaborated by
CC C.purpurea (PubMed:17560817, PubMed:19139103). D-lysergyl-tripeptides
CC are assembled by the nonribosomal peptide synthetases and released as
CC N-(D-lysergyl-aminoacyl)-lactams (PubMed:24361048). Cyclolization of
CC the D-lysergyl-tripeptides is performed by the Fe(2+)/2-ketoglutarate-
CC dependent dioxygenase easH which introduces a hydroxyl group into N-(D-
CC lysergyl-aminoacyl)-lactam at alpha-C of the aminoacyl residue followed
CC by spontaneous condensation with the terminal lactam carbonyl group
CC (PubMed:24361048). {ECO:0000250|UniProtKB:Q50EL0,
CC ECO:0000269|PubMed:10071219, ECO:0000269|PubMed:14700635,
CC ECO:0000269|PubMed:14732265, ECO:0000269|PubMed:15904941,
CC ECO:0000269|PubMed:16538694, ECO:0000269|PubMed:17560817,
CC ECO:0000269|PubMed:19139103, ECO:0000269|PubMed:20118373,
CC ECO:0000269|PubMed:20735127, ECO:0000269|PubMed:21409592,
CC ECO:0000269|PubMed:21494745, ECO:0000269|PubMed:24361048,
CC ECO:0000305|PubMed:17308187, ECO:0000305|PubMed:17720822}.
CC -!- CATALYTIC ACTIVITY:
CC Reaction=chanoclavine-I + NAD(+) = chanoclavine-I aldehyde + H(+) +
CC NADH; Xref=Rhea:RHEA:33891, ChEBI:CHEBI:15378, ChEBI:CHEBI:57540,
CC ChEBI:CHEBI:57945, ChEBI:CHEBI:71487, ChEBI:CHEBI:72949;
CC EC=1.1.1.332; Evidence={ECO:0000250|UniProtKB:Q4WZ66};
CC -!- PATHWAY: Alkaloid biosynthesis; ergot alkaloid biosynthesis.
CC {ECO:0000305|PubMed:10071219}.
CC -!- SUBUNIT: Homotetramer. {ECO:0000250|UniProtKB:D4AK45}.
CC -!- SIMILARITY: Belongs to the short-chain dehydrogenases/reductases (SDR)
CC family. {ECO:0000305}.
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DR EMBL; AJ011966; CAB39316.1; -; Genomic_DNA.
DR AlphaFoldDB; O94207; -.
DR SMR; O94207; -.
DR VEuPathDB; FungiDB:CPUR_04080; -.
DR UniPathway; UPA00327; -.
DR GO; GO:0016491; F:oxidoreductase activity; IEA:UniProtKB-KW.
DR GO; GO:0035835; P:indole alkaloid biosynthetic process; IEA:UniProtKB-UniPathway.
DR InterPro; IPR036291; NAD(P)-bd_dom_sf.
DR InterPro; IPR002347; SDR_fam.
DR PRINTS; PR00081; GDHRDH.
DR SUPFAM; SSF51735; SSF51735; 1.
PE 3: Inferred from homology;
KW Alkaloid metabolism; Glycoprotein; NAD; Oxidoreductase; Signal.
FT SIGNAL 1..20
FT /evidence="ECO:0000255"
FT CHAIN 21..261
FT /note="Chanoclavine-I dehydrogenase easD"
FT /id="PRO_0000439127"
FT ACT_SITE 166
FT /note="Proton acceptor"
FT /evidence="ECO:0000250|UniProtKB:Q12634"
FT BINDING 16..40
FT /ligand="NAD(+)"
FT /ligand_id="ChEBI:CHEBI:57540"
FT /evidence="ECO:0000250|UniProtKB:Q12634"
FT CARBOHYD 43
FT /note="N-linked (GlcNAc...) asparagine"
FT /evidence="ECO:0000255|PROSITE-ProRule:PRU00498"
SQ SEQUENCE 261 AA; 27619 MW; 52F2978F64D5D992 CRC64;
MPSMTSKVFA ITGGASGIGA ATCRLLAERD AAVICLADVS STNFTSLQES IAKSNPSTLV
HCTELDVRSA DKVDQWLQSI VSTHGDLHGA ANVAGIAQGA GLRATPTILE ENDAEWSRIL
DVNLNGVFYS TRAQVRVMKD LPPGHRSIVN VASIAAFSHV PDVYAYGTSK SACAYLTTCI
AADVFWSGIR VNCVSPGITN TPMLPQFEPK AKSLDAIKDM YRDQGYPTGE ADGVARTIVW
LLSEDSIPVY GANINVGACP P
