LV1A2_LYCMC
ID LV1A2_LYCMC Reviewed; 97 AA.
AC P0CI45;
DT 11-JAN-2011, integrated into UniProtKB/Swiss-Prot.
DT 11-JAN-2011, sequence version 1.
DT 03-AUG-2022, entry version 29.
DE RecName: Full=Lipolysis-activating peptide 1-alpha chain;
DE Short=LVP1-alpha;
DE Contains:
DE RecName: Full=Neurotoxin BmKBTx-like;
DE Flags: Precursor;
OS Lychas mucronatus (Chinese swimming scorpion).
OC Eukaryota; Metazoa; Ecdysozoa; Arthropoda; Chelicerata; Arachnida;
OC Scorpiones; Buthida; Buthoidea; Buthidae; Lychas.
OX NCBI_TaxID=172552;
RN [1]
RP NUCLEOTIDE SEQUENCE [MRNA].
RC STRAIN=Yunnan; TISSUE=Venom gland;
RX PubMed=20663230; DOI=10.1186/1471-2164-11-452;
RA Zhao R., Ma Y., He Y., Di Z., Wu Y.-L., Cao Z.-J., Li W.-X.;
RT "Comparative venom gland transcriptome analysis of the scorpion Lychas
RT mucronatus reveals intraspecific toxic gene diversity and new venomous
RT components.";
RL BMC Genomics 11:452-452(2010).
CC -!- FUNCTION: The heterodimer non-edited LVP1 induces lipolysis in rat
CC adipocytes. Induction of lipolysis by LVP1 appears to be mediated
CC through the beta-2 adrenergic receptor pathway (ADRB2) (By similarity).
CC {ECO:0000250|UniProtKB:P84810}.
CC -!- FUNCTION: The edited BmKBTx-like, similar to beta-toxins, may modulate
CC voltage-gated sodium channels (Nav) and may block voltage-gated
CC potassium channels (Kv). {ECO:0000250|UniProtKB:P84810}.
CC -!- SUBUNIT: Monomer (edited version) and heterodimer (non-edited version)
CC of this alpha chain and a beta chain (AC P0CI43).
CC {ECO:0000250|UniProtKB:P84810}.
CC -!- SUBCELLULAR LOCATION: Secreted {ECO:0000305|PubMed:20663230}.
CC -!- TISSUE SPECIFICITY: Expressed by the venom gland.
CC {ECO:0000305|PubMed:20663230}.
CC -!- DOMAIN: Has the structural arrangement of an alpha-helix connected to
CC antiparallel beta-sheets by disulfide bonds (CS-alpha/beta).
CC {ECO:0000305}.
CC -!- RNA EDITING: Modified_positions=80 {ECO:0000250}; Note=The stop codon
CC (UGA) at position 81 is created by RNA editing. {ECO:0000250};
CC -!- SIMILARITY: Belongs to the long (3 C-C) scorpion toxin superfamily.
CC {ECO:0000305}.
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DR EMBL; GT028891; -; NOT_ANNOTATED_CDS; mRNA.
DR AlphaFoldDB; P0CI45; -.
DR SMR; P0CI45; -.
DR GO; GO:0005576; C:extracellular region; IEA:UniProtKB-SubCell.
DR GO; GO:0015459; F:potassium channel regulator activity; IEA:UniProtKB-KW.
DR GO; GO:0019871; F:sodium channel inhibitor activity; IEA:InterPro.
DR GO; GO:0090729; F:toxin activity; IEA:UniProtKB-KW.
DR Gene3D; 3.30.30.10; -; 1.
DR InterPro; IPR044062; LCN-type_CS_alpha_beta_dom.
DR InterPro; IPR036574; Scorpion_toxin-like_sf.
DR InterPro; IPR002061; Scorpion_toxinL/defensin.
DR Pfam; PF00537; Toxin_3; 1.
DR SUPFAM; SSF57095; SSF57095; 1.
DR PROSITE; PS51863; LCN_CSAB; 1.
PE 3: Inferred from homology;
KW Disulfide bond; G-protein coupled receptor impairing toxin;
KW Ion channel impairing toxin; Neurotoxin; Potassium channel impairing toxin;
KW RNA editing; Secreted; Signal; Toxin;
KW Voltage-gated potassium channel impairing toxin;
KW Voltage-gated sodium channel impairing toxin.
FT SIGNAL 1..21
FT /evidence="ECO:0000255"
FT CHAIN 22..97
FT /note="Lipolysis-activating peptide 1-alpha chain"
FT /id="PRO_0000403885"
FT CHAIN 22..79
FT /note="Neurotoxin BmKBTx-like"
FT /id="PRO_0000403886"
FT DOMAIN 25..88
FT /note="LCN-type CS-alpha/beta"
FT /evidence="ECO:0000255|PROSITE-ProRule:PRU01210"
FT DISULFID 39..62
FT /evidence="ECO:0000255|PROSITE-ProRule:PRU01210"
FT DISULFID 48..67
FT /evidence="ECO:0000255|PROSITE-ProRule:PRU01210"
FT DISULFID 52..69
FT /evidence="ECO:0000255|PROSITE-ProRule:PRU01210"
FT DISULFID 87
FT /note="Interchain (with C-86 in LVP1 chain beta)"
FT /evidence="ECO:0000250"
SQ SEQUENCE 97 AA; 11109 MW; 24FE3F6F256585D1 CRC64;
MNIMLFCSVF ILVSLTGLSV SDDVPGNYPM SLYGNKYSCG VLGENEYCRK ICKSHGVNYG
YCFNSRCWCE YLEDKDVDFW AAHKNHCKNG KLYPPKK