Laminin (LAMB2) ELISA Kit for Rat

LAMB2: 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. Defects in LAMB2 are the cause of Pierson syndrome (PIERSS); also known as microcoria-congenital nephrotic syndrome. Pierson syndrome is characterized by nephrotic syndrome with neonatal onset, diffuse mesangial sclerosis and eye abnormalities with microcoria as the leading clinical feature. Death usually occurs within the first weeks of life. Disease severity depends on the mutation type: nontruncating LAMB2 mutations may display variable phenotypes ranging from a milder variant of Pierson syndrome to isolated congenital nephrotic syndrome. Defects in LAMB2 are the cause of nephrotic syndrome type 5 with or without ocular abnormalities (NPHS5). NPHS5 is a renal disease characterized clinically by proteinuria, hypoalbuminemia, hyperlipidemia and edema. Kidney biopsies show non-specific histologic changes such as focal segmental glomerulosclerosis and diffuse mesangial proliferation. Some affected individuals have an inherited steroid-resistant form and progress to end-stage renal failure. NPHS5 is characterized by very early onset of progressive renal failure. A subset of patients may develop mild ocular anomalies, such as myopia, nystagmus, and strabismus.

Protein type: Secreted; Extracellular matrix; Motility/polarity/chemotaxis; Secreted, signal peptide

Cellular Component: extracellular matrix; laminin-3 complex; basement membrane; basal lamina; synapse

Molecular Function: integrin binding

Biological Process: cellular morphogenesis during differentiation; axon guidance; Schwann cell development; visual perception; retina development in camera-type eye; axon extension involved in regeneration; synapse organization and biogenesis; cell adhesion; astrocyte development; neurite development; neuromuscular junction development