NSCB_TRIVH
ID NSCB_TRIVH Reviewed; 287 AA.
AC D4CZZ5;
DT 02-NOV-2016, integrated into UniProtKB/Swiss-Prot.
DT 18-MAY-2010, sequence version 1.
DT 03-AUG-2022, entry version 35.
DE RecName: Full=Lactamase-like protein nscB {ECO:0000303|PubMed:23758576};
DE EC=3.1.-.- {ECO:0000305|PubMed:23758576};
DE AltName: Full=Neosartoricin B biosynthesis protein B {ECO:0000303|PubMed:23758576};
GN Name=nscB {ECO:0000303|PubMed:23758576}; ORFNames=TRV_00389;
OS Trichophyton verrucosum (strain HKI 0517).
OC Eukaryota; Fungi; Dikarya; Ascomycota; Pezizomycotina; Eurotiomycetes;
OC Eurotiomycetidae; Onygenales; Arthrodermataceae; Trichophyton.
OX NCBI_TaxID=663202;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=HKI 0517;
RX PubMed=21247460; DOI=10.1186/gb-2011-12-1-r7;
RA Burmester A., Shelest E., Gloeckner G., Heddergott C., Schindler S.,
RA Staib P., Heidel A., Felder M., Petzold A., Szafranski K., Feuermann M.,
RA Pedruzzi I., Priebe S., Groth M., Winkler R., Li W., Kniemeyer O.,
RA Schroeckh V., Hertweck C., Hube B., White T.C., Platzer M., Guthke R.,
RA Heitman J., Woestemeyer J., Zipfel P.F., Monod M., Brakhage A.A.;
RT "Comparative and functional genomics provide insights into the
RT pathogenicity of dermatophytic fungi.";
RL Genome Biol. 12:R7.1-R7.16(2011).
RN [2]
RP FUNCTION.
RX PubMed=23758576; DOI=10.1021/sb400048b;
RA Yin W.B., Chooi Y.H., Smith A.R., Cacho R.A., Hu Y., White T.C., Tang Y.;
RT "Discovery of cryptic polyketide metabolites from dermatophytes using
RT heterologous expression in Aspergillus nidulans.";
RL ACS Synth. Biol. 2:629-634(2013).
CC -!- FUNCTION: Lactamase-like protein; part of the gene cluster that
CC mediates the biosynthesis of neosartoricin B, a prenylated anthracenone
CC that probably exhibits T-cell antiproliferative activity, suggestive of
CC a physiological role as an immunosuppressive agent (PubMed:23758576).
CC The non-reducing polyketide synthase nscA probably synthesizes and
CC cyclizes the decaketide backbone (By similarity). The hydrolase nscB
CC then mediates the product release through hydrolysis followed by
CC spontaneous decarboxylation (By similarity). The prenyltransferase nscD
CC catalyzes the addition of the dimethylallyl group to the aromatic C5
CC (By similarity). The FAD-dependent monooxygenase nscC is then
CC responsible for the stereospecific hydroxylation at C2 (By similarity).
CC Neosartoricin B can be converted into two additional compounds
CC neosartoricins C and D (By similarity). Neosartoricin C is a
CC spirocyclic compound that is cyclized through the attack of C3 hydroxyl
CC on C14, followed by dehydration (By similarity). On the other hand,
CC neosartoricin D is a further cyclized compound in which attack of C2 on
CC C14 in neosartoricin C results in the formation of the acetal-
CC containing dioxabicyclo-octanone ring (By similarity). Both of these
CC compounds are novel and possibly represent related metabolites of the
CC gene cluster (By similarity). {ECO:0000250|UniProtKB:A1D8J2,
CC ECO:0000250|UniProtKB:F2S702, ECO:0000305|PubMed:23758576}.
CC -!- COFACTOR:
CC Name=Zn(2+); Xref=ChEBI:CHEBI:29105;
CC Evidence={ECO:0000250|UniProtKB:Q988B9};
CC Note=Binds 2 Zn(2+) ions per subunit. {ECO:0000250|UniProtKB:Q988B9};
CC -!- PATHWAY: Secondary metabolite biosynthesis.
CC {ECO:0000305|PubMed:23758576}.
CC -!- SIMILARITY: Belongs to the metallo-beta-lactamase superfamily.
CC {ECO:0000305}.
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DR EMBL; ACYE01000020; EFE44838.1; -; Genomic_DNA.
DR RefSeq; XP_003025449.1; XM_003025403.1.
DR AlphaFoldDB; D4CZZ5; -.
DR SMR; D4CZZ5; -.
DR EnsemblFungi; EFE44838; EFE44838; TRV_00389.
DR GeneID; 9581675; -.
DR KEGG; tve:TRV_00389; -.
DR HOGENOM; CLU_048478_1_0_1; -.
DR Proteomes; UP000008383; Unassembled WGS sequence.
DR GO; GO:0008800; F:beta-lactamase activity; IEA:InterPro.
DR GO; GO:0008270; F:zinc ion binding; IEA:InterPro.
DR GO; GO:0017001; P:antibiotic catabolic process; IEA:InterPro.
DR GO; GO:0044550; P:secondary metabolite biosynthetic process; IEA:UniProt.
DR Gene3D; 1.10.10.10; -; 1.
DR Gene3D; 3.60.15.10; -; 1.
DR InterPro; IPR001018; Beta-lactamase_class-B_CS.
DR InterPro; IPR001279; Metallo-B-lactamas.
DR InterPro; IPR036866; RibonucZ/Hydroxyglut_hydro.
DR InterPro; IPR036388; WH-like_DNA-bd_sf.
DR Pfam; PF00753; Lactamase_B; 1.
DR SMART; SM00849; Lactamase_B; 1.
DR SUPFAM; SSF56281; SSF56281; 1.
DR PROSITE; PS00743; BETA_LACTAMASE_B_1; 1.
PE 3: Inferred from homology;
KW Hydrolase; Metal-binding; Zinc.
FT CHAIN 1..287
FT /note="Lactamase-like protein nscB"
FT /id="PRO_0000437902"
FT ACT_SITE 66
FT /note="Proton donor/acceptor"
FT /evidence="ECO:0000255"
FT BINDING 62
FT /ligand="Zn(2+)"
FT /ligand_id="ChEBI:CHEBI:29105"
FT /ligand_label="1"
FT /ligand_note="catalytic"
FT /evidence="ECO:0000250|UniProtKB:Q988B9"
FT BINDING 64
FT /ligand="Zn(2+)"
FT /ligand_id="ChEBI:CHEBI:29105"
FT /ligand_label="1"
FT /ligand_note="catalytic"
FT /evidence="ECO:0000250|UniProtKB:Q988B9"
FT BINDING 66
FT /ligand="Zn(2+)"
FT /ligand_id="ChEBI:CHEBI:29105"
FT /ligand_label="2"
FT /ligand_note="catalytic"
FT /evidence="ECO:0000250|UniProtKB:Q988B9"
FT BINDING 67
FT /ligand="Zn(2+)"
FT /ligand_id="ChEBI:CHEBI:29105"
FT /ligand_label="2"
FT /ligand_note="catalytic"
FT /evidence="ECO:0000250|UniProtKB:Q988B9"
SQ SEQUENCE 287 AA; 32255 MW; 9BD6B851F1D728BF CRC64;
MHLQGTNTYL VGTGKSRILI DTAQKNCKLA NQYQKGLPVW INRISSFLYT HKIELSYVLL
THWHGDHTGG VPDLISRNSS LADKIYKNRP DSGQNPITHG QIFSVDGATV RAIFTPGHSV
DHMCFLLEEE NALFTGDNVL GHGFSVAQDL GRYMDSLRDM ASLGCRIGYP AHGAVIEYLP
GKLEEYIQHR EGRERMMLSA LTRQRVRGEG VREEGVKCGL TLNEIVMAIY GKLPPEVIEK
ALAPSLLQVL WKLTEDRMVG FKPGDPLKRQ WFALEQRKRN KVRGCPS
