Tbio LAMC1 Laminin subunit gamma-1

Protein Summary

Description

Binding to cells via a high affinity receptor, laminin is thought to mediate the attachment, migration and organization of cells into tissues during embryonic development by interacting with other extracellular matrix components. Laminins, a family of extracellular matrix glycoproteins, are the major noncollagenous constituent of basement membranes. They have been implicated in a wide variety of biological processes including cell adhesion, differentiation, migration, signaling, neurite outgrowth and metastasis. Laminins, composed of 3 non identical chains: laminin alpha, beta and gamma (formerly A, B1, and B2, respectively), have a cruciform structure consisting of 3 short arms, each formed by a different chain, and a long arm composed of all 3 chains. Each laminin chain is a multidomain protein encoded by a distinct gene. Several isoforms of each chain have been described. Different alpha, beta and gamma chain isomers combine to give rise to different heterotrimeric laminin isoforms which are designated by Arabic numerals in the order of their discovery, i.e. alpha1beta1gamma1 heterotrimer is laminin 1. The biological functions of the different chains and trimer molecules are largely unknown, but some of the chains have been shown to differ with respect to their tissue distribution, presumably reflecting diverse functions in vivo. This gene encodes the gamma chain isoform laminin, gamma 1. The gamma 1 chain, formerly thought to be a beta chain, contains structural domains similar to beta chains, however, lacks the short alpha region separating domains I and II. The structural organization of this gene also suggested that it had diverged considerably from the beta chain genes. Embryos of transgenic mice in which both alleles of the gamma 1 chain gene were inactivated by homologous recombination, lacked basement membranes, indicating that laminin, gamma 1 chain is necessary for laminin heterotrimer assembly. It has been inferred by analogy with the strikingly similar 3' UTR sequence in mouse laminin gamma 1 cDNA, that multiple polyadenylation sites are utilized in human to generate the 2 different sized mRNAs (5.5 and 7.5 kb) seen on Northern analysis. [provided by RefSeq, Aug 2011]

Uniprot Accession IDs

• P11047
• Q5VYE7

Gene Name

• LAMC1

Ensembl ID

• ENST00000258341
• ENSP00000258341
• ENSG00000135862

Symbol

• LAMB2
• LAMB2

Knowledge Table

Most Knowledge About	Knowledge Value (0 to 1 scale)
transcription factor perturbation	1
disease perturbation	0.95
transcription factor binding site profile	0.94
PubMedID	0.9
protein domain	0.85

Protein Classes

PANTHER Classes

Protein / Receptor / Laminin Subunit Gamma-1

Protein / Extracellular Matrix Protein / Extracellular Matrix Linker Protein / Laminin Subunit Gamma-1

Protein / ... / Protease Inhibitor / Laminin Subunit Gamma-1

DTO Classes

Protein / Enzyme Modulator / Protease Inhibitor / Laminin Subunit Gamma-1

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: 90.99   (req: < 5)

Gene RIFs: 45   (req: <= 3)

Antibodies: 469   (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: 90.99   (req: >= 5)

Gene RIFs: 45   (req: > 3)

Antibodies: 469   (req: > 50)

- OR - satisfy the following criterion:

Gene Ontology Terms: 12

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