NOTA_ASPSM
ID NOTA_ASPSM Reviewed; 339 AA.
AC E1ACP6;
DT 11-DEC-2019, integrated into UniProtKB/Swiss-Prot.
DT 02-NOV-2010, sequence version 1.
DT 03-AUG-2022, entry version 22.
DE RecName: Full=NmrA-like family domain-containing oxidoreductase notA {ECO:0000303|PubMed:20722388};
DE EC=1.-.-.- {ECO:0000305};
DE AltName: Full=Notoamide biosynthesis cluster protein A {ECO:0000303|PubMed:20722388};
GN Name=notA {ECO:0000303|PubMed:20722388};
OS Aspergillus sp. (strain MF297-2).
OC Eukaryota; Fungi; Dikarya; Ascomycota; Pezizomycotina; Eurotiomycetes;
OC Eurotiomycetidae; Eurotiales; Aspergillaceae; Aspergillus.
OX NCBI_TaxID=877550;
RN [1]
RP NUCLEOTIDE SEQUENCE [GENOMIC DNA], AND FUNCTION.
RC STRAIN=MF297-2;
RX PubMed=20722388; DOI=10.1021/ja1049302;
RA Ding Y., de Wet J.R., Cavalcoli J., Li S., Greshock T.J., Miller K.A.,
RA Finefield J.M., Sunderhaus J.D., McAfoos T.J., Tsukamoto S., Williams R.M.,
RA Sherman D.H.;
RT "Genome-based characterization of two prenylation steps in the assembly of
RT the stephacidin and notoamide anticancer agents in a marine-derived
RT Aspergillus sp.";
RL J. Am. Chem. Soc. 132:12733-12740(2010).
RN [2]
RP BIOTECHNOLOGY.
RX PubMed=17304611; DOI=10.1002/anie.200604381;
RA Kato H., Yoshida T., Tokue T., Nojiri Y., Hirota H., Ohta T.,
RA Williams R.M., Tsukamoto S.;
RT "Notoamides A-D: prenylated indole alkaloids isolated from a marine-derived
RT fungus, Aspergillus sp.";
RL Angew. Chem. Int. Ed. 46:2254-2256(2007).
RN [3]
RP FUNCTION.
RX PubMed=22188465; DOI=10.1021/ja2093212;
RA Li S., Finefield J.M., Sunderhaus J.D., McAfoos T.J., Williams R.M.,
RA Sherman D.H.;
RT "Biochemical characterization of NotB as an FAD-dependent oxidase in the
RT biosynthesis of notoamide indole alkaloids.";
RL J. Am. Chem. Soc. 134:788-791(2012).
RN [4]
RP FUNCTION.
RX PubMed=23213353; DOI=10.1039/c2md20029e;
RA Li S., Anand K., Tran H., Yu F., Finefield J.M., Sunderhaus J.D.,
RA McAfoos T.J., Tsukamoto S., Williams R.M., Sherman D.H.;
RT "Comparative analysis of the biosynthetic systems for fungal
RT bicyclo[2.2.2]diazaoctane indole alkaloids: the (+)/(-)-notoamide,
RT paraherquamide and malbrancheamide pathways.";
RL Med. Chem. Commun. 3:987-996(2012).
CC -!- FUNCTION: NmrA-like family domain-containing oxidoreductase; part of
CC the gene cluster that mediates the biosynthesis of notoamide, a fungal
CC indole alkaloid that belongs to a family of natural products containing
CC a characteristic bicyclo[2.2.2]diazaoctane core (PubMed:20722388). The
CC first step of notoamide biosynthesis involves coupling of L-proline and
CC L-tryptophan by the bimodular NRPS notE, to produce cyclo-L-tryptophan-
CC L-proline called brevianamide F (PubMed:20722388). The reverse
CC prenyltransferase notF then acts as a deoxybrevianamide E synthase and
CC converts brevianamide F to deoxybrevianamide E via reverse prenylation
CC at C-2 of the indole ring leading to the bicyclo[2.2.2]diazaoctane core
CC (PubMed:20722388). Deoxybrevianamide E is further hydroxylated at C-6
CC of the indole ring, likely catalyzed by the cytochrome P450
CC monooxygenase notG, to yield 6-hydroxy-deoxybrevianamide E (Probable).
CC 6-hydroxy-deoxybrevianamide E is a specific substrate of the
CC prenyltransferase notC for normal prenylation at C-7 to produce 6-
CC hydroxy-7-prenyl-deoxybrevianamide, also called notoamide S
CC (PubMed:20722388). As the proposed pivotal branching point in notoamide
CC biosynthesis, notoamide S can be diverted to notoamide E through an
CC oxidative pyran ring closure putatively catalyzed by either notH
CC cytochrome P450 monooxygenase or the notD FAD-linked oxidoreductase
CC (Probable). This step would be followed by an indole 2,3-epoxidation-
CC initiated pinacol-like rearrangement catalyzed by the notB FAD-
CC dependent monooxygenase leading to the formation of notoamide C and
CC notoamide D (PubMed:22188465). On the other hand notoamide S is
CC converted to notoamide T by notH (or notD), a bifunctional oxidase that
CC also functions as the intramolecular Diels-Alderase responsible for
CC generation of (+)-notoamide T (Probable). To generate antipodal (-)-
CC notoaminide T, notH' (or notD') in Aspergillus versicolor is expected
CC to catalyze a Diels-Alder reaction leading to the opposite
CC stereochemistry (Probable). The remaining oxidoreductase notD (or notH)
CC likely catalyzes the oxidative pyran ring formation to yield (+)-
CC stephacidin A (Probable). The FAD-dependent monooxygenase notI is
CC highly similar to notB and is predicted to catalyze a similar
CC conversion from (+)-stephacidin A to (-)-notoamide B via the 2,3-
CC epoxidation of (+)-stephacidin A followed by a pinacol-type
CC rearrangement (Probable). Finally, it remains unclear which enzyme
CC could be responsible for the final hydroxylation steps leading to
CC notoamide A and sclerotiamide (Probable). {ECO:0000269|PubMed:20722388,
CC ECO:0000269|PubMed:22188465, ECO:0000305|PubMed:23213353}.
CC -!- BIOTECHNOLOGY: Notoamides have been shown to exhibit antitumoral
CC activities (PubMed:17304611). Notoamides A-C show moderate cytotoxicity
CC against HeLa and L1210 cells with IC(50) values in the range of 22-52
CC mg/ml, but the IC(50) value of notoamide D is greater than 100 mg/ml
CC (PubMed:17304611). Moreover, notoamide C induces G2/M-cell cycle arrest
CC at a concentration of 6.3 mg/ml (PubMed:17304611).
CC {ECO:0000269|PubMed:17304611}.
CC -!- SIMILARITY: Belongs to the NmrA-type oxidoreductase family.
CC {ECO:0000305}.
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DR EMBL; HM622670; ADM34134.1; -; Genomic_DNA.
DR AlphaFoldDB; E1ACP6; -.
DR SMR; E1ACP6; -.
DR GO; GO:0016491; F:oxidoreductase activity; IEA:UniProtKB-KW.
DR GO; GO:0009820; P:alkaloid metabolic process; IEA:UniProtKB-KW.
DR InterPro; IPR036291; NAD(P)-bd_dom_sf.
DR InterPro; IPR008030; NmrA-like.
DR Pfam; PF05368; NmrA; 1.
DR SUPFAM; SSF51735; SSF51735; 1.
PE 1: Evidence at protein level;
KW Alkaloid metabolism; NADP; Oxidoreductase.
FT CHAIN 1..339
FT /note="NmrA-like family domain-containing oxidoreductase
FT notA"
FT /id="PRO_0000448813"
FT BINDING 13..18
FT /ligand="NADP(+)"
FT /ligand_id="ChEBI:CHEBI:58349"
FT /evidence="ECO:0000250|UniProtKB:Q9HBL8"
FT BINDING 39..43
FT /ligand="NADP(+)"
FT /ligand_id="ChEBI:CHEBI:58349"
FT /evidence="ECO:0000250|UniProtKB:Q9HBL8"
FT BINDING 60..61
FT /ligand="NADP(+)"
FT /ligand_id="ChEBI:CHEBI:58349"
FT /evidence="ECO:0000250|UniProtKB:Q9HBL8"
FT BINDING 81..83
FT /ligand="NADP(+)"
FT /ligand_id="ChEBI:CHEBI:58349"
FT /evidence="ECO:0000250|UniProtKB:Q9HBL8"
FT BINDING 140
FT /ligand="NADP(+)"
FT /ligand_id="ChEBI:CHEBI:58349"
FT /evidence="ECO:0000250|UniProtKB:Q9HBL8"
FT BINDING 164..167
FT /ligand="NADP(+)"
FT /ligand_id="ChEBI:CHEBI:58349"
FT /evidence="ECO:0000250|UniProtKB:Q9HBL8"
SQ SEQUENCE 339 AA; 37479 MW; E2CB73DF54B5FD23 CRC64;
MANDNRRTVT VYGATGAQGG AVARSLLKNH AFKVRAITRK PDSEAAKALR ALGAEIVQGD
GWSKEQMVAA FSGSWAAFVN TNSDDPCFVD GHPPTEVDLG KIIIDAIIEA GTVKHLVYSS
FVDTSSFTNG QASIKAADMK AKVQRYAADS GHFDTVCPLY QGWYMGIFLR QDYARALGGF
PYFQDEDGFR TLHLPRWGTH TDMPIPWISL EDDFGDIVHG IFLEPENYNR RVVPTVSDVC
TYPEVMDAVH ALATGQKAQY IPVTDWEAHF GDSHHGRESL TIFKFGHFTN GKYFGHEPIS
TDISAYLKSK AAEAQGKDPS DRKLITLSEW FEKHVAPLI
