ID   LC2B2_MORNI             Reviewed;          20 AA.
AC   P83426;
DT   23-JAN-2007, integrated into UniProtKB/Swiss-Prot.
DT   23-JAN-2007, sequence version 2.
DT   25-MAY-2022, entry version 25.
DE   RecName: Full=Agglutinin beta-2 chain isoform 2;
DE   AltName: Full=Agglutinin II beta chain, isoform 2;
DE   AltName: Full=MNA II beta, isoform 2;
DE   Flags: Fragment;
OS   Morus nigra (Black mulberry).
OC   Eukaryota; Viridiplantae; Streptophyta; Embryophyta; Tracheophyta;
OC   Spermatophyta; Magnoliopsida; eudicotyledons; Gunneridae; Pentapetalae;
OC   rosids; fabids; Rosales; Moraceae; Morus.
OX   NCBI_TaxID=85232;
RN   [1] {ECO:0000305}
RP   PROTEIN SEQUENCE, AND FUNCTION.
RC   TISSUE=Bark {ECO:0000269|Ref.1}, and Root {ECO:0000269|Ref.1};
RA   Angel C.E., Pickford W.J., Grant G., Kelly D.;
RT   "Purification and characterisation of Morus nigra agglutinins I and II.";
RL   Submitted (JUL-2002) to UniProtKB.
CC   -!- FUNCTION: Alpha-methyl-D-mannoside and D-mannose specific lectin. Binds
CC       IgA. {ECO:0000269|Ref.1}.
CC   -!- SUBUNIT: Tetramer of four alpha chains associated with two or four beta
CC       chains. {ECO:0000250|UniProtKB:P18672}.
CC   -!- MISCELLANEOUS: Two isoforms exist, a major form and a minor form. This
CC       is the minor form. {ECO:0000269|Ref.1}.
CC   -!- SIMILARITY: Belongs to the jacalin lectin family. {ECO:0000255}.
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DR   AlphaFoldDB; P83426; -.
DR   GO; GO:0019862; F:IgA binding; IEA:UniProtKB-KW.
DR   GO; GO:0005537; F:mannose binding; IEA:UniProtKB-KW.
PE   1: Evidence at protein level;
KW   Direct protein sequencing; IgA-binding protein; Lectin; Mannose-binding.
FT   CHAIN           1..>20
FT                   /note="Agglutinin beta-2 chain isoform 2"
FT                   /id="PRO_0000273271"
FT   REGION          1..20
FT                   /note="Disordered"
FT                   /evidence="ECO:0000256|SAM:MobiDB-lite"
FT   NON_TER         20
FT                   /evidence="ECO:0000303|Ref.1"
SQ   SEQUENCE   20 AA;  2034 MW;  9DAE48EA4EB0E87B CRC64;
     TQSTGTSQTV EVGLWGGPDN