Beta-galactosidase-1-like protein (GLB1L)

Beta-galactosidase-1-like protein (GLB1L) is a protein-coding gene in humans with homology to the canonical lysosomal enzyme beta-galactosidase (GLB1), but is distinguishable from it both genetically and functionally[2][3][6]. GLB1L is predicted, based on sequence and structural features, to possess beta-galactosidase enzymatic activity typical of the glycosyl hydrolase family 35, which is involved in the hydrolysis of beta-linked galactose residues in glycoconjugates, such as gangliosides and glycoproteins[2][3][6]. Its precise biological function in humans remains unclear, as there is limited functional characterization, but orthologous proteins are predicted to operate in glycoside hydrolysis and the galactose catabolic pathway, potentially within intracellular compartments like vacuoles[3][6]. There is no evidence that GLB1L is a therapeutic target or mechanistically implicated in established disease processes, nor are there approved drugs known to interact with it or clinical biomarkers linked to its function. The protein is part of a broader family related to glycosphingolipid metabolism, but its distinct physiological role, tissue expression, and significance in human health or disease are unresolved[2][8][9].

Other names

Beta-galactosidase-1-like proteinGLB1LUNQ229/PRO262MGC10771testicular tissue protein Li 74galactosidase beta 1 likeglb1l