Tbio LALBA Alpha-lactalbumin

Protein Summary

Description

Regulatory subunit of lactose synthase, changes the substrate specificity of galactosyltransferase in the mammary gland making glucose a good acceptor substrate for this enzyme. This enables LS to synthesize lactose, the major carbohydrate component of milk. In other tissues, galactosyltransferase transfers galactose onto the N-acetylglucosamine of the oligosaccharide chains in glycoproteins. This gene encodes alpha-lactalbumin, a principal protein of milk. Alpha-lactalbumin forms the regulatory subunit of the lactose synthase (LS) heterodimer and beta 1,4-galactosyltransferase (beta4Gal-T1) forms the catalytic component. Together, these proteins enable LS to produce lactose by transfering galactose moieties to glucose. As a monomer, alpha-lactalbumin strongly binds calcium and zinc ions and may possess bactericidal or antitumor activity. A folding variant of alpha-lactalbumin, called HAMLET, likely induces apoptosis in tumor and immature cells. [provided by RefSeq, Jul 2008]

Uniprot Accession IDs

• P00709
• Q6FGX0
• Q9UDK4

Gene Name

• LALBA

Ensembl ID

• ENST00000301046
• ENSP00000301046
• ENSG00000167531

Symbol

• LYZL7
• LYZG

Knowledge Table

Most Knowledge About	Knowledge Value (0 to 1 scale)
disease perturbation	0.74
tissue	0.63
cell line	0.58
protein domain	0.58
gene perturbation	0.57

Protein Classes

No PANTHER Classes or DTO Classes found

IDG Development Level Summary

Tdark

These are targets about which virtually nothing is known. They do not have known drug or small molecule activities
- AND - satisfy two or more of the following criteria:

Pubmed score: 2884.97   (req: < 5)

Gene RIFs: 23   (req: <= 3)

Antibodies: 339   (req: <= 50)

Tbio

These targets do not have known drug or small molecule activities
- AND - satisfy two or more of the following criteria:

Pubmed score: 2884.97   (req: >= 5)

Gene RIFs: 23   (req: > 3)

Antibodies: 339   (req: > 50)

- OR - satisfy the following criterion:

Gene Ontology Terms: 9

Tchem

Target has at least one ChEMBL compound with an activity cutoff of < 30 nM - AND - satisfies the preceding conditions

Active Ligand: 0

Tclin

Target has at least one approved drug - AND - satisfies the preceding conditions

Active Drug: 0