ID   BGAL_PHODC              Reviewed;          12 AA.
AC   P85412;
DT   05-MAY-2009, integrated into UniProtKB/Swiss-Prot.
DT   05-MAY-2009, sequence version 1.
DT   03-AUG-2022, entry version 21.
DE   RecName: Full=Beta-galactosidase;
DE            Short=Lactase;
DE            EC=3.2.1.23;
DE   Flags: Fragment;
OS   Phoenix dactylifera (Date palm).
OC   Eukaryota; Viridiplantae; Streptophyta; Embryophyta; Tracheophyta;
OC   Spermatophyta; Magnoliopsida; Liliopsida; Arecaceae; Coryphoideae;
OC   Phoeniceae; Phoenix.
OX   NCBI_TaxID=42345;
RN   [1] {ECO:0000305}
RP   PROTEIN SEQUENCE, MASS SPECTROMETRY, AND ALLERGEN.
RC   TISSUE=Pollen {ECO:0000269|PubMed:20128428};
RX   PubMed=20128428;
RA   Postigo I., Guisantes J.A., Negro J.M., Rodriguez-Pacheco R.,
RA   David-Garcia D., Martinez J.;
RT   "Identification of 2 new allergens of Phoenix dactylifera using an
RT   immunoproteomics approach.";
RL   J. Investig. Allergol. Clin. Immunol. 19:504-507(2009).
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=Hydrolysis of terminal non-reducing beta-D-galactose residues
CC         in beta-D-galactosides.; EC=3.2.1.23; Evidence={ECO:0000305};
CC   -!- SUBCELLULAR LOCATION: Secreted, extracellular space, apoplast
CC       {ECO:0000305}.
CC   -!- MASS SPECTROMETRY: Mass=90756; Method=MALDI;
CC       Evidence={ECO:0000269|PubMed:20128428};
CC   -!- ALLERGEN: Causes an allergic reaction in human. Binds to IgE.
CC       {ECO:0000269|PubMed:20128428}.
CC   -!- MISCELLANEOUS: On the 2D-gel the determined pI of this protein is:
CC       6.23, its MW is: 90 kDa. {ECO:0000269|PubMed:20128428}.
CC   -!- SIMILARITY: Belongs to the glycosyl hydrolase 35 family. {ECO:0000255}.
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DR   Proteomes; UP000228380; Genome assembly.
DR   GO; GO:0048046; C:apoplast; IEA:UniProtKB-SubCell.
DR   GO; GO:0004565; F:beta-galactosidase activity; IEA:UniProtKB-EC.
DR   GO; GO:0008152; P:metabolic process; IEA:UniProtKB-KW.
PE   1: Evidence at protein level;
KW   Allergen; Apoplast; Direct protein sequencing; Glycosidase; Hydrolase;
KW   Reference proteome; Secreted.
FT   CHAIN           <1..>12
FT                   /note="Beta-galactosidase"
FT                   /id="PRO_0000372706"
FT   NON_TER         1
FT                   /evidence="ECO:0000303|PubMed:20128428"
FT   NON_TER         12
FT                   /evidence="ECO:0000303|PubMed:20128428"
SQ   SEQUENCE   12 AA;  1361 MW;  DDB52F25DA57287D CRC64;
     EIQNAGLYAI LR