ID   TXA1_LATHE              Reviewed;          88 AA.
AC   V9QFH5; V9QEQ7; V9QF66;
DT   29-APR-2015, integrated into UniProtKB/Swiss-Prot.
DT   19-MAR-2014, sequence version 1.
DT   25-MAY-2022, entry version 16.
DE   RecName: Full=Alpha-latrotoxin associated low molecular weight protein {ECO:0000303|PubMed:24316130};
DE            Short=Alpha-latrotoxin-associated LMWP {ECO:0000303|PubMed:24316130};
DE   AltName: Full=Latrodectin-1 {ECO:0000250|UniProtKB:P49125};
DE            Short=Latrodectin {ECO:0000303|PubMed:24316130};
DE   Flags: Precursor;
OS   Latrodectus hesperus (Western black widow spider).
OC   Eukaryota; Metazoa; Ecdysozoa; Arthropoda; Chelicerata; Arachnida; Araneae;
OC   Araneomorphae; Entelegynae; Araneoidea; Theridiidae; Latrodectus.
OX   NCBI_TaxID=256737;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [MRNA].
RC   TISSUE=Venom gland;
RX   PubMed=24316130; DOI=10.1016/j.gene.2013.11.054;
RA   McCowan C., Garb J.E.;
RT   "Recruitment and diversification of an ecdysozoan family of neuropeptide
RT   hormones for black widow spider venom expression.";
RL   Gene 536:366-375(2014).
CC   -!- FUNCTION: May increase the toxicity of alpha-latrotoxin and/or other
CC       venom components. Is non-toxic to mice and to the cockroach Periplaneta
CC       americana. {ECO:0000250|UniProtKB:P49125}.
CC   -!- SUBCELLULAR LOCATION: Secreted {ECO:0000250|UniProtKB:P49125}.
CC   -!- TISSUE SPECIFICITY: Expressed by the venom gland. {ECO:0000305}.
CC   -!- MISCELLANEOUS: Co-purifies with alpha-latrotoxin.
CC       {ECO:0000250|UniProtKB:P49125}.
CC   -!- SIMILARITY: Belongs to the arthropod CHH/MIH/GIH/VIH hormone family.
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DR   EMBL; KF751506; AHC13251.1; -; mRNA.
DR   EMBL; KF751507; AHC13252.1; -; mRNA.
DR   EMBL; KF751508; AHC13253.1; -; mRNA.
DR   AlphaFoldDB; V9QFH5; -.
DR   SMR; V9QFH5; -.
DR   GO; GO:0005576; C:extracellular region; IEA:UniProtKB-SubCell.
DR   Gene3D; 1.10.2010.10; -; 1.
DR   InterPro; IPR035957; Crust_neurohorm_sf.
DR   SUPFAM; SSF81778; SSF81778; 1.
PE   3: Inferred from homology;
KW   Secreted; Signal.
FT   SIGNAL          1..18
FT                   /evidence="ECO:0000250|UniProtKB:P49125"
FT   CHAIN           19..88
FT                   /note="Alpha-latrotoxin associated low molecular weight
FT                   protein"
FT                   /id="PRO_0000432878"
FT   CONFLICT        22
FT                   /note="D -> N (in Ref. 1; AHC13251)"
FT                   /evidence="ECO:0000305"
FT   CONFLICT        28
FT                   /note="D -> N (in Ref. 1; AHC13251)"
FT                   /evidence="ECO:0000305"
FT   CONFLICT        32
FT                   /note="A -> E (in Ref. 1; AHC13251)"
FT                   /evidence="ECO:0000305"
FT   CONFLICT        48
FT                   /note="G -> D (in Ref. 1; AHC13251/AHC13252)"
FT                   /evidence="ECO:0000305"
FT   CONFLICT        53
FT                   /note="M -> I (in Ref. 1; AHC13251)"
FT                   /evidence="ECO:0000305"
FT   CONFLICT        59
FT                   /note="N -> D (in Ref. 1; AHC13252)"
FT                   /evidence="ECO:0000305"
FT   CONFLICT        86
FT                   /note="V -> A (in Ref. 1; AHC13251/AHC13252)"
FT                   /evidence="ECO:0000305"
SQ   SEQUENCE   88 AA;  9980 MW;  32E227101E808DDA CRC64;
     MSKLFFVAFL CLIISVFATT PDEIGCTDIS QAEFDEKNAN CIKCGEEGFG EEMVKRCRNK
     CFTDNFYQSC VDQLNGVYEE KDTPPVKE