AMP1_PARCM
ID AMP1_PARCM Reviewed; 62 AA.
AC A0A2I8B346;
DT 23-MAY-2018, integrated into UniProtKB/Swiss-Prot.
DT 28-MAR-2018, sequence version 1.
DT 25-MAY-2022, entry version 10.
DE RecName: Full=Paralithocin 1 {ECO:0000312|EMBL:AUT12057.1};
DE AltName: Full=P23 {ECO:0000303|PubMed:29338238};
DE Flags: Precursor;
OS Paralithodes camtschaticus (Red king crab).
OC Eukaryota; Metazoa; Ecdysozoa; Arthropoda; Crustacea; Multicrustacea;
OC Malacostraca; Eumalacostraca; Eucarida; Decapoda; Pleocyemata; Anomura;
OC Paguroidea; Lithodidae; Paralithodes.
OX NCBI_TaxID=6741 {ECO:0000312|EMBL:AUT12057.1};
RN [1] {ECO:0000312|EMBL:AUT12057.1}
RP NUCLEOTIDE SEQUENCE [MRNA], PROTEIN SEQUENCE OF 24-62, FUNCTION, MASS
RP SPECTROMETRY, AMIDATION AT TYR-61, DISULFIDE BONDS, AND IDENTIFICATION BY
RP MASS SPECTROMETRY.
RC TISSUE=Hemocyte {ECO:0000303|PubMed:29338238};
RX PubMed=29338238; DOI=10.1021/acs.jnatprod.7b00780;
RA Moe M.K., Haug T., Sydnes M.O., Sperstad S.V., Li C., Vaagsfjord L.C.,
RA de la Vega E., Stensvaag K.;
RT "Paralithocins, Antimicrobial Peptides with Unusual Disulfide Connectivity
RT from the Red King Crab, Paralithodes camtschaticus.";
RL J. Nat. Prod. 81:140-150(2018).
CC -!- FUNCTION: Has weak antibacterial activity, mainly against marine Gram-
CC positive bacteria like C.maltaromaticum (MIC=200 uM), C.mobile (MIC=100
CC uM), C.divergens (MIC=200 uM) and C.funditum (MIC=200 uM) but also
CC against C.glutamicum (MIC=50 uM). Has very little or no activity
CC against Gram-negative bacteria. {ECO:0000269|PubMed:29338238}.
CC -!- PTM: The amidated form is probably the active form.
CC {ECO:0000303|PubMed:29338238}.
CC -!- MASS SPECTROMETRY: Mass=4075.6248; Mass_error=0.0017;
CC Method=Electrospray; Note=Amidated.;
CC Evidence={ECO:0000269|PubMed:29338238};
CC -!- MASS SPECTROMETRY: Mass=4076.6044; Mass_error=0.0028;
CC Method=Electrospray; Note=Not amidated.;
CC Evidence={ECO:0000269|PubMed:29338238};
CC -!- SIMILARITY: Belongs to the paralithocin family.
CC {ECO:0000305|PubMed:29338238}.
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DR EMBL; MF919584; AUT12057.1; -; mRNA.
DR AlphaFoldDB; A0A2I8B346; -.
DR GO; GO:0050830; P:defense response to Gram-positive bacterium; IDA:UniProtKB.
DR GO; GO:0031640; P:killing of cells of another organism; IDA:UniProtKB.
PE 1: Evidence at protein level;
KW Amidation; Antibiotic; Antimicrobial; Direct protein sequencing;
KW Disulfide bond; Signal.
FT SIGNAL 1..23
FT /evidence="ECO:0000269|PubMed:29338238"
FT PEPTIDE 24..61
FT /note="Paralithocin 1"
FT /evidence="ECO:0000269|PubMed:29338238"
FT /id="PRO_0000444206"
FT MOD_RES 61
FT /note="Tyrosine amide; partial"
FT /evidence="ECO:0000269|PubMed:29338238"
FT DISULFID 29..55
FT /evidence="ECO:0000269|PubMed:29338238"
FT DISULFID 33..51
FT /evidence="ECO:0000269|PubMed:29338238"
FT DISULFID 37..49
FT /evidence="ECO:0000269|PubMed:29338238"
FT DISULFID 42..52
FT /evidence="ECO:0000269|PubMed:29338238"
SQ SEQUENCE 62 AA; 6516 MW; 2ADD8C60FAAAA504 CRC64;
MGPMKVLLVL LVVMVAAPHI ADAWQQPSCS SICDYSCGKS ACISYSGRCG CCASCRRGPI
YG