ID   S1_PAPRH                Reviewed;         139 AA.
AC   Q40975;
DT   10-MAY-2017, integrated into UniProtKB/Swiss-Prot.
DT   01-NOV-1996, sequence version 1.
DT   25-MAY-2022, entry version 44.
DE   RecName: Full=Self-incompatibility protein S1 {ECO:0000303|PubMed:8134385};
DE   Flags: Precursor;
GN   Name=S1 {ECO:0000303|PubMed:8134385};
OS   Papaver rhoeas (Common poppy).
OC   Eukaryota; Viridiplantae; Streptophyta; Embryophyta; Tracheophyta;
OC   Spermatophyta; Magnoliopsida; Ranunculales; Papaveraceae; Papaveroideae;
OC   Papaver.
OX   NCBI_TaxID=33128;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [MRNA], PROTEIN SEQUENCE OF 20-36, FUNCTION, TISSUE
RP   SPECIFICITY, DEVELOPMENTAL STAGE, AND GLYCOSYLATION.
RC   STRAIN=cv. Shirley;
RX   PubMed=8134385; DOI=10.1073/pnas.91.6.2265;
RA   Foote H.C.C., Ride J.P., Franklin-Tong V.E., Walker E.A., Lawrence M.J.,
RA   Franklin F.C.H.;
RT   "Cloning and expression of a distinctive class of self-incompatibility (S)
RT   gene from Papaver rhoeas L.";
RL   Proc. Natl. Acad. Sci. U.S.A. 91:2265-2269(1994).
CC   -!- FUNCTION: Exhibits specific pollen self-inhibitory activity thus
CC       preventing self-fertilization. {ECO:0000269|PubMed:8134385}.
CC   -!- SUBCELLULAR LOCATION: Secreted {ECO:0000305|PubMed:8134385}.
CC   -!- TISSUE SPECIFICITY: Accumulates in the stigma (at protein level).
CC       {ECO:0000269|PubMed:8134385}.
CC   -!- DEVELOPMENTAL STAGE: First expressed in stigmas at low levels in
CC       flowers two days preanthesis. Accumulates rapidely the day before
CC       anthesis and stays at high levels in stigmatic tissues for several days
CC       after flower opening. {ECO:0000269|PubMed:8134385}.
CC   -!- PTM: Glycosylated (S1b) and unglocosylated (S1a) forms coexist.
CC       {ECO:0000269|PubMed:8134385}.
CC   -!- SIMILARITY: Belongs to the plant self-incompatibility (S1) protein
CC       family. {ECO:0000305}.
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DR   EMBL; X74333; CAA52380.1; -; mRNA.
DR   PIR; S41450; S41450.
DR   AlphaFoldDB; Q40975; -.
DR   SMR; Q40975; -.
DR   GO; GO:0005576; C:extracellular region; IEA:UniProtKB-SubCell.
DR   GO; GO:0060320; P:rejection of self pollen; IDA:UniProtKB.
DR   InterPro; IPR010264; Self-incomp_S1.
DR   PANTHER; PTHR31232; PTHR31232; 1.
DR   Pfam; PF05938; Self-incomp_S1; 1.
PE   1: Evidence at protein level;
KW   Direct protein sequencing; Glycoprotein; Secreted; Self-incompatibility;
KW   Signal.
FT   SIGNAL          1..19
FT                   /evidence="ECO:0000269|PubMed:8134385"
FT   CHAIN           20..139
FT                   /note="Self-incompatibility protein S1"
FT                   /id="PRO_5004231503"
FT   CARBOHYD        51
FT                   /note="N-linked (GlcNAc...) asparagine"
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU00498"
SQ   SEQUENCE   139 AA;  16619 MW;  F12DE2942255AF66 CRC64;
     MNIFYVIVLL SFFLSKSSGF FPVIEVRIMN RRGNGRSIGI HCRSKDNDLQ NQTVTSGHDM
     SFSFREDFFH TTHFYCDLQW DKETKFGFYS YQAKRDDDGR CSSQCLWKIM DDGLYGFDQE
     HQIWQIYHLI KKERKEGRT