ID   LEGB6_VICFA             Reviewed;         329 AA.
AC   P16079;
DT   01-APR-1990, integrated into UniProtKB/Swiss-Prot.
DT   01-APR-1990, sequence version 1.
DT   25-MAY-2022, entry version 88.
DE   RecName: Full=Legumin type B;
DE   Contains:
DE     RecName: Full=Legumin type B alpha chain;
DE     AltName: Full=Legumin type B acidic chain;
DE   Contains:
DE     RecName: Full=Legumin type B beta chain;
DE     AltName: Full=Legumin type B basic chain;
DE   Flags: Fragment;
GN   Name=LEB6;
OS   Vicia faba (Broad bean) (Faba vulgaris).
OC   Eukaryota; Viridiplantae; Streptophyta; Embryophyta; Tracheophyta;
OC   Spermatophyta; Magnoliopsida; eudicotyledons; Gunneridae; Pentapetalae;
OC   rosids; fabids; Fabales; Fabaceae; Papilionoideae; 50 kb inversion clade;
OC   NPAAA clade; Hologalegina; IRL clade; Fabeae; Vicia.
OX   NCBI_TaxID=3906;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [GENOMIC DNA].
RC   STRAIN=cv. Fribo; TISSUE=Leaf;
RX   PubMed=2491681; DOI=10.1007/bf00016020;
RA   Heim U., Schubert R., Baeumlein H., Wobus U.;
RT   "The legumin gene family: structure and evolutionary implications of Vicia
RT   faba B-type genes and pseudogenes.";
RL   Plant Mol. Biol. 13:653-663(1989).
CC   -!- FUNCTION: This protein found in the seeds of many leguminous and non-
CC       leguminous plants is the source of sulfur-containing amino acids in
CC       seed meals.
CC   -!- SUBUNIT: Hexamer; each subunit is composed of an acidic and a basic
CC       chain derived from a single precursor and linked by a disulfide bond.
CC   -!- SIMILARITY: Belongs to the 11S seed storage protein (globulins) family.
CC       {ECO:0000305}.
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DR   EMBL; X14240; CAA32456.1; -; Genomic_DNA.
DR   PIR; S07577; S07577.
DR   AlphaFoldDB; P16079; -.
DR   SMR; P16079; -.
DR   GO; GO:0045735; F:nutrient reservoir activity; IEA:UniProtKB-KW.
DR   Gene3D; 2.60.120.10; -; 2.
DR   InterPro; IPR022379; 11S_seedstore_CS.
DR   InterPro; IPR006044; 11S_seedstore_pln.
DR   InterPro; IPR006045; Cupin_1.
DR   InterPro; IPR014710; RmlC-like_jellyroll.
DR   InterPro; IPR011051; RmlC_Cupin_sf.
DR   Pfam; PF00190; Cupin_1; 2.
DR   PRINTS; PR00439; 11SGLOBULIN.
DR   SMART; SM00835; Cupin_1; 1.
DR   SUPFAM; SSF51182; SSF51182; 1.
DR   PROSITE; PS00305; 11S_SEED_STORAGE; 1.
PE   3: Inferred from homology;
KW   Disulfide bond; Seed storage protein; Storage protein.
FT   CHAIN           <1..148
FT                   /note="Legumin type B alpha chain"
FT                   /id="PRO_0000032080"
FT   CHAIN           149..329
FT                   /note="Legumin type B beta chain"
FT                   /id="PRO_0000032081"
FT   DOMAIN          161..308
FT                   /note="Cupin type-1"
FT                   /evidence="ECO:0000255"
FT   REGION          47..79
FT                   /note="Disordered"
FT                   /evidence="ECO:0000256|SAM:MobiDB-lite"
FT   REGION          97..149
FT                   /note="Disordered"
FT                   /evidence="ECO:0000256|SAM:MobiDB-lite"
FT   COMPBIAS        98..116
FT                   /note="Basic and acidic residues"
FT                   /evidence="ECO:0000256|SAM:MobiDB-lite"
FT   DISULFID        ?..155
FT                   /note="Interchain (between alpha and beta chains)"
FT                   /evidence="ECO:0000255"
FT   NON_TER         1
SQ   SEQUENCE   329 AA;  37089 MW;  8C284353FA3A05C3 CRC64;
     GIPYWTYNNG DEPLVAISLL DTSNIANQLD STPRVFYLGG NPEVEFPETQ EEQQERHQQK
     HSLPVGRRGG QHQQEEDGNS VLSGFSSEFL AQTFNTEEDT AKRLRSPRDK RNQIVRVEGG
     LRIINPEGQQ EEEEEEEEEK QRSEQGRNGL EETICSLKIR ENIAQPARAD LYNPRAGSIS
     TANSLTLPIL RYLRLSAEYV RLYRNGIYAP HWNINANSLL YVIRGEGRVR IVNSQGNAVF
     DNKVRKGQLV VVPQNFVVAE QAGEEEGLEY LVFKTNDRAA VSHVQQVFRA TPADVLANAF
     GLRQRQVTEL KLSGNRGPLV HPQSQSQSN