MSD12_AMABI
ID MSD12_AMABI Reviewed; 34 AA.
AC A8W7P0;
DT 28-MAR-2018, integrated into UniProtKB/Swiss-Prot.
DT 15-JAN-2008, sequence version 1.
DT 25-MAY-2022, entry version 15.
DE RecName: Full=MSDIN-like toxin proprotein 12 {ECO:0000303|PubMed:18025465};
DE Contains:
DE RecName: Full=Toxin MSD12 {ECO:0000303|PubMed:18025465};
DE Flags: Precursor;
GN Name=MSD12 {ECO:0000303|PubMed:18025465};
OS Amanita bisporigera (Destroying angel).
OC Eukaryota; Fungi; Dikarya; Basidiomycota; Agaricomycotina; Agaricomycetes;
OC Agaricomycetidae; Agaricales; Amanitaceae; Amanita.
OX NCBI_TaxID=87325;
RN [1]
RP NUCLEOTIDE SEQUENCE [GENOMIC DNA], AND FUNCTION.
RX PubMed=18025465; DOI=10.1073/pnas.0707340104;
RA Hallen H.E., Luo H., Scott-Craig J.S., Walton J.D.;
RT "Gene family encoding the major toxins of lethal Amanita mushrooms.";
RL Proc. Natl. Acad. Sci. U.S.A. 104:19097-19101(2007).
CC -!- FUNCTION: Probable toxin that belongs to the MSDIN-like toxin family
CC responsible for a large number of food poisoning cases and deaths
CC (PubMed:18025465). {ECO:0000305|PubMed:18025465}.
CC -!- PTM: Processed by the macrocyclase-peptidase enzyme POPB to yield a
CC toxic cyclic nonapeptide (PubMed:18025465). POPB first removes 10
CC residues from the N-terminus (By similarity). Conformational trapping
CC of the remaining peptide forces the enzyme to release this intermediate
CC rather than proceed to macrocyclization (By similarity). The enzyme
CC rebinds the remaining peptide in a different conformation and catalyzes
CC macrocyclization of the N-terminal 9 residues (By similarity).
CC {ECO:0000250|UniProtKB:A0A067SLB9, ECO:0000305|PubMed:18025465}.
CC -!- SIMILARITY: Belongs to the MSDIN fungal toxin family. {ECO:0000305}.
CC ---------------------------------------------------------------------------
CC Copyrighted by the UniProt Consortium, see https://www.uniprot.org/terms
CC Distributed under the Creative Commons Attribution (CC BY 4.0) License
CC ---------------------------------------------------------------------------
DR EMBL; EU196155; ABW87784.1; -; Genomic_DNA.
DR AlphaFoldDB; A8W7P0; -.
DR GO; GO:0090729; F:toxin activity; IEA:UniProtKB-KW.
DR InterPro; IPR027582; Amanitin/phalloidin.
DR TIGRFAMs; TIGR04309; amanitin; 1.
PE 3: Inferred from homology;
KW Toxin.
FT PROPEP 1..10
FT /evidence="ECO:0000305|PubMed:18025465"
FT /id="PRO_0000443668"
FT PEPTIDE 11..19
FT /note="Toxin MSD12"
FT /evidence="ECO:0000305|PubMed:18025465"
FT /id="PRO_0000443669"
FT PROPEP 20..34
FT /evidence="ECO:0000305|PubMed:18025465"
FT /id="PRO_0000443670"
FT CROSSLNK 11..19
FT /note="Cyclopeptide (His-Pro)"
FT /evidence="ECO:0000305|PubMed:18025465"
SQ SEQUENCE 34 AA; 3579 MW; C38FD56BF17FF224 CRC64;
MSDINATRLP HPFPLGLQPC AGDVDNLTLT KGEG