Reviewed, UniProtKB/Swiss-Prot P85412 (BGAL_PHODC)

Names and origin

Protein names	Recommended name:     Beta-galactosidase       Short name=Lactase     EC=3.2.1.23
Organism	Phoenix dactylifera (Date palm)
Taxonomic identifier	42345 [NCBI]
Taxonomic lineage	Eukaryota › Viridiplantae › Streptophyta › Embryophyta › Tracheophyta › Spermatophyta › Magnoliophyta › Liliopsida › Arecaceae › Coryphoideae › Phoeniceae › Phoenix

Protein attributes

Sequence length	12 AA.
Sequence status	Fragment.
Sequence processing	The displayed sequence is not processed.
Protein existence	Evidence at protein level.

General annotation (Comments)

Catalytic activity	Hydrolysis of terminal non-reducing beta-D-galactose residues in beta-D-galactosides.
Subcellular location	Secreted › extracellular space › apoplast Potential.
Allergenic properties	Causes an allergic reaction in human. Binds to IgE. Ref.1
Miscellaneous	On the 2D-gel the determined pI of this protein is: 6.23, its MW is: 90 kDa. Ref.1
Sequence similarities	Belongs to the glycosyl hydrolase 35 family.
Mass spectrometry	Molecular mass is 90756 Da . Determined by MALDI. Ref.1

Ontologies

Keywords
Cellular component	Apoplast Secreted
Disease	Allergen
Molecular function	Glycosidase Hydrolase
Technical term	Direct protein sequencing
Gene Ontology (GO)
Biological process	metabolic process Inferred from electronic annotation. Source: UniProtKB-KW
Cellular component	apoplast Inferred from electronic annotation. Source: UniProtKB-SubCell
Molecular function	beta-galactosidase activity Inferred from electronic annotation. Source: EC
Complete GO annotation...

Sequence annotation (Features)

	Feature key	Position(s)	Length	Description	Graphical view	Feature identifier
Molecule processing
	Chain	‹1 – ›12	›12	Beta-galactosidase		PRO_0000372706
Experimental info
	Non-terminal residue	1	1
	Non-terminal residue	12	1

Sequences

	Sequence		Length	Mass (Da)
	P85412-1 [UniParc]. Last modified May 5, 2009. Version 1. Checksum: DDB52F25DA57287D	FASTA	12	1,361
	10 EIQNAGLYAI LR

References

[1]	"Two new allergens of Phoenix dactylifera are responsible for palm pollen allergy." Postigo I., Rodriguez-Pacheco R., Negro J.M., David-Garcia D., Guisantes J.A., Martinez J. Submitted (DEC-2007) to UniProtKB Cited for: PROTEIN SEQUENCE, MASS SPECTROMETRY, ALLERGENICITY. Tissue: Pollen.

Cross-references

3D structure databases
ModBase	Search...
Family and domain databases
InterPro	IPR019801. Glyco_hydro_35_CS. [Graphical view]
PROSITE	PS01182. GLYCOSYL_HYDROL_F35. Partial match. [Graphical view]
ProtoNet	Search...

Entry information

Entry name

BGAL_PHODC

Accession

Primary (citable) accession number: P85412

Entry history

Integrated into UniProtKB/Swiss-Prot:	May 5, 2009
Last sequence update:	May 5, 2009
Last modified:	October 13, 2009
This is version 4 of the entry and version 1 of the sequence. [Complete history]

Entry status

Reviewed (UniProtKB/Swiss-Prot)

Annotation project

PPAP (Plant Proteome Annotation Project)