Identification
HMDB Protein ID CDBP00788
Secondary Accession Numbers Not Available
Name Beta-galactosidase
Description Not Available
Synonyms
  1. Acid beta-galactosidase
  2. Elastin receptor 1
  3. Lactase
Gene Name GLB1
Protein Type Enzyme
Biological Properties
General Function Involved in hydrolase activity, hydrolyzing O-glycosyl compounds
Specific Function Cleaves beta-linked terminal galactosyl residues from gangliosides, glycoproteins, and glycosaminoglycans. Isoform 2 has no beta-galactosidase catalytic activity, but plays functional roles in the formation of extracellular elastic fibers (elastogenesis) and in the development of connective tissue. Seems to be identical to the elastin-binding protein (EBP), a major component of the non-integrin cell surface receptor expressed on fibroblasts, smooth muscle cells, chondroblasts, leukocytes, and certain cancer cell types. In elastin producing cells, associates with tropoelastin intracellularly and functions as a recycling molecular chaperone which facilitates the secretions of tropoelastin and its assembly into elastic fibers.
GO Classification
Biological Process
galactose catabolic process
keratan sulfate catabolic process
carbohydrate metabolic process
glycosphingolipid metabolic process
phospholipid metabolic process
Cellular Component
perinuclear region of cytoplasm
lysosomal lumen
Function
ion binding
cation binding
binding
catalytic activity
hydrolase activity
hydrolase activity, acting on glycosyl bonds
hydrolase activity, hydrolyzing o-glycosyl compounds
Molecular Function
beta-galactosidase activity
cation binding
galactoside binding
Process
metabolic process
primary metabolic process
carbohydrate metabolic process
Cellular Location
  1. perinuclear region
  2. Isoform 2:Cytoplasm
Pathways
Gene Properties
Chromosome Location Not Available
Locus Not Available
SNPs GLB1
Gene Sequence
>2034 bp
ATGCCGGGGTTCCTGGTTCGCATCCTCCCTCTGTTGCTGGTTCTGCTGCTTCTGGGCCCT
ACGCGCGGCTTGCGCAATGCCACCCAGAGGATGTTTGAAATTGACTATAGCCGGGACTCC
TTCCTCAAGGATGGCCAGCCATTTCGCTACATCTCAGGAAGCATTCACTACTCCCGTGTG
CCCCGCTTCTACTGGAAGGACCGGCTGCTGAAGATGAAGATGGCTGGGCTGAACGCCATC
CAGACGTATGTGCCCTGGAACTTTCATGAGCCCTGGCCAGGACAGTACCAGTTTTCTGAG
GACCATGATGTGGAATATTTTCTTCGGCTGGCTCATGAGCTGGGACTGCTGGTTATCCTG
AGGCCCGGGCCCTACATCTGTGCAGAGTGGGAAATGGGAGGATTACCTGCTTGGCTGCTA
GAGAAAGAGTCTATTCTTCTCCGCTCCTCCGACCCAGATTACCTGGCAGCTGTGGACAAG
TGGTTGGGAGTCCTTCTGCCCAAGATGAAGCCTCTCCTCTATCAGAATGGAGGGCCAGTT
ATAACAGTGCAGGTTGAAAATGAATATGGCAGCTACTTTGCCTGTGATTTTGACTACCTC
GCGTTCCTGCAGAAGCGCTTTCGCCACCATCTGGGGGATGATGTGGTTCTGTTTACCACT
GATGGAGCACATAAAACATTCCTGAAATGTGGGGCCCTGCAGGGCCTCTACACCACGGTG
GACTTTGGAACAGGCAGCAACATCACAGATGCTTTCCTAAGCCAGAGGAAGTGTGAGCCC
AAAGGACCCTTGATCAATTCTGAATTCTATACTGGCTGGCTAGATCACTGGGGCCAACCT
CACTCCACAATCAAGACCGAAGCAGTGGCTTCCTCCCTCTATGATATACTTGCCCGTGGG
GCGAGTGTGAACTTGTACATGTTTATAGGTGGGACCAATTTTGCCTATTGGAATGGGGCC
AACTCACCCTATGCAGCACAGCCCACCAGCTACGACTATGATGCCCCACTGAGTGAGGCT
GGGGACCTCACTGAGAAGTATTTTGCTCTGCGAAACATCATCCAGAAGTTTGAAAAAGTA
CCAGAAGGTCCTATCCCTCCATCTACACCAAAGTTTGCATATGGAAAGGTCACTTTGGAA
AAGTTAAAGACAGTGGGAGCAGCTCTGGACATTCTGTGTCCCTCTGGGCCCATCAAAAGC
CTTTATCCCTTGACATTTATCCAGGTGAAACAGCATTATGGGTTTGTGCTGTACCGGACA
ACACTTCCTCAAGATTGCAGCAACCCAGCACCTCTCTCTTCACCCCTCAATGGAGTCCAC
GATCGAGCATATGTTGCTGTGGATGGGATCCCCCAGGGAGTCCTTGAGCGAAACAATGTG
ATCACTCTGAACATAACAGGGAAAGCTGGAGCCACTCTGGACCTTCTGGTAGAGAACATG
GGACGTGTGAACTATGGTGCATATATCAACGATTTTAAGGGTTTGGTTTCTAACCTGACT
CTCAGTTCCAATATCCTCACGGACTGGACGATCTTTCCACTGGACACTGAGGATGCAGTG
CGCAGCCACCTGGGGGGCTGGGGACACCGTGACAGTGGCCACCATGATGAAGCCTGGGCC
CACAACTCATCCAACTACACGCTCCCGGCCTTTTATATGGGGAACTTCTCCATTCCCAGT
GGGATCCCAGACTTGCCCCAGGACACCTTTATCCAGTTTCCTGGATGGACCAAGGGCCAG
GTCTGGATTAATGGCTTTAACCTTGGCCGCTATTGGCCAGCCCGGGGCCCTCAGTTGACC
TTGTTTGTGCCCCAGCACATCCTGATGACCTCGGCCCCAAACACCATCACCGTGCTGGAA
CTGGAGTGGGCACCCTGCAGCAGTGATGATCCAGAACTATGTGCTGTGACGTTCGTGGAC
AGGCCAGTTATTGGCTCATCTGTGACCTACGATCATCCCTCCAAACCTGTTGAAAAAAGA
CTCATGCCCCCACCCCCGCAAAAAAACAAAGATTCATGGCTGGACCATGTATGA
Protein Properties
Number of Residues 677
Molecular Weight Not Available
Theoretical pI Not Available
Pfam Domain Function
Signals Not Available
Transmembrane Regions Not Available
Protein Sequence
>Beta-galactosidase
MPGFLVRILPLLLVLLLLGPTRGLRNATQRMFEIDYSRDSFLKDGQPFRYISGSIHYSRV
PRFYWKDRLLKMKMAGLNAIQTYVPWNFHEPWPGQYQFSEDHDVEYFLRLAHELGLLVIL
RPGPYICAEWEMGGLPAWLLEKESILLRSSDPDYLAAVDKWLGVLLPKMKPLLYQNGGPV
ITVQVENEYGSYFACDFDYLRFLQKRFRHHLGDDVVLFTTDGAHKTFLKCGALQGLYTTV
DFGTGSNITDAFLSQRKCEPKGPLINSEFYTGWLDHWGQPHSTIKTEAVASSLYDILARG
ASVNLYMFIGGTNFAYWNGANSPYAAQPTSYDYDAPLSEAGDLTEKYFALRNIIQKFEKV
PEGPIPPSTPKFAYGKVTLEKLKTVGAALDILCPSGPIKSLYPLTFIQVKQHYGFVLYRT
TLPQDCSNPAPLSSPLNGVHDRAYVAVDGIPQGVLERNNVITLNITGKAGATLDLLVENM
GRVNYGAYINDFKGLVSNLTLSSNILTDWTIFPLDTEDAVRSHLGGWGHRDSGHHDEAWA
HNSSNYTLPAFYMGNFSIPSGIPDLPQDTFIQFPGWTKGQVWINGFNLGRYWPARGPQLT
LFVPQHILMTSAPNTITVLELEWAPCSSDDPELCAVTFVDRPVIGSSVTYDHPSKPVEKR
LMPPPPQKNKDSWLDHV
GenBank ID Protein 179419
UniProtKB/Swiss-Prot ID P16278
UniProtKB/Swiss-Prot Entry Name BGAL_HUMAN
PDB IDs
GenBank Gene ID M22590
GeneCard ID GLB1
GenAtlas ID GLB1
HGNC ID HGNC:4298
References
General References Not Available