ID   2SS4_CAPMA              Reviewed;         100 AA.
AC   P80353;
DT   01-FEB-1995, integrated into UniProtKB/Swiss-Prot.
DT   01-FEB-1995, sequence version 1.
DT   25-MAY-2022, entry version 80.
DE   RecName: Full=Sweet protein mabinlin-4;
DE   AltName: Full=Mabinlin IV;
DE            Short=MAB IV;
DE   Contains:
DE     RecName: Full=Sweet protein mabinlin-4 chain A;
DE   Contains:
DE     RecName: Full=Sweet protein mabinlin-4 chain B;
OS   Capparis masaikai (Mabinlang).
OC   Eukaryota; Viridiplantae; Streptophyta; Embryophyta; Tracheophyta;
OC   Spermatophyta; Magnoliopsida; eudicotyledons; Gunneridae; Pentapetalae;
OC   rosids; malvids; Brassicales; Capparaceae; Capparis.
OX   NCBI_TaxID=13395;
RN   [1]
RP   PROTEIN SEQUENCE.
RC   TISSUE=Seed;
RX   PubMed=8055976; DOI=10.1111/j.1432-1033.1994.tb19077.x;
RA   Nirasawa S., Nishino T., Katahira M., Uesugi S., Hu Z., Kurihara Y.;
RT   "Structures of heat-stable and unstable homologues of the sweet protein
RT   mabinlin. The difference in the heat stability is due to replacement of a
RT   single amino acid residue.";
RL   Eur. J. Biochem. 223:989-995(1994).
CC   -!- FUNCTION: Heat stable 2S seed storage protein having sweetness-inducing
CC       activity.
CC   -!- SUBUNIT: Heterodimer of a small A and a large B chain linked by
CC       disulfide bonds.
CC   -!- SIMILARITY: Belongs to the 2S seed storage albumins family.
CC       {ECO:0000305}.
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DR   PIR; S48180; S48180.
DR   AlphaFoldDB; P80353; -.
DR   SMR; P80353; -.
DR   GO; GO:0045735; F:nutrient reservoir activity; IEA:UniProtKB-KW.
DR   CDD; cd00261; AAI_SS; 1.
DR   Gene3D; 1.10.110.10; -; 1.
DR   InterPro; IPR044723; AAI_SS_dom.
DR   InterPro; IPR036312; Bifun_inhib/LTP/seed_sf.
DR   InterPro; IPR016140; Bifunc_inhib/LTP/seed_store.
DR   InterPro; IPR000617; Napin/2SS/CON.
DR   PANTHER; PTHR35496; PTHR35496; 1.
DR   Pfam; PF00234; Tryp_alpha_amyl; 1.
DR   PRINTS; PR00496; NAPIN.
DR   SMART; SM00499; AAI; 1.
DR   SUPFAM; SSF47699; SSF47699; 1.
PE   1: Evidence at protein level;
KW   Direct protein sequencing; Disulfide bond; Seed storage protein;
KW   Storage protein; Taste-modifying protein.
FT   CHAIN           1..28
FT                   /note="Sweet protein mabinlin-4 chain A"
FT                   /id="PRO_0000032144"
FT   CHAIN           29..100
FT                   /note="Sweet protein mabinlin-4 chain B"
FT                   /id="PRO_0000032145"
FT   DISULFID        4..49
FT                   /evidence="ECO:0000250"
FT   DISULFID        17..38
FT                   /evidence="ECO:0000250"
FT   DISULFID        39..87
FT                   /evidence="ECO:0000250"
FT   DISULFID        51..95
FT                   /evidence="ECO:0000250"
FT   NON_CONS        28..29
FT                   /evidence="ECO:0000305"
SQ   SEQUENCE   100 AA;  11928 MW;  7B09673FAB7793CA CRC64;
     EPLCRRQFQQ HQHLRACQRY LRRRAQRGEQ RGPALRLCCN QLRQVNKPCV CPVLRQAAHQ
     QLYQGQIEGP RQVRRLFRAA RNLPNICKIP AVGRCQFTRW