NP_002282.2
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NCBI GenBank Nucleotide #
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UniProt Primary Accession #
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UniProt Secondary Accession #
UniProt Related Accession #
Molecular Weight
198,038 Da
NCBI Official Full Name
laminin subunit beta-1
NCBI Official Synonym Full Names
laminin, beta 1
NCBI Official Synonym Symbols
NCBI Protein Information
laminin subunit beta-1; laminin B1 chain
UniProt Protein Name
Laminin subunit beta-1
UniProt Synonym Protein Names
Laminin B1 chain; Laminin-1 subunit beta; Laminin-10 subunit beta; Laminin-12 subunit beta; Laminin-2 subunit beta; Laminin-6 subunit beta; Laminin-8 subunit beta
UniProt Entry Name
LAMB1_HUMAN
NCBI Summary for LAMB1
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 are composed of 3 non identical chains: laminin alpha, beta and gamma (formerly A, B1, and B2, respectively) and they form 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 beta chain isoform laminin, beta 1. The beta 1 chain has 7 structurally distinct domains which it shares with other beta chain isomers. The C-terminal helical region containing domains I and II are separated by domain alpha, domains III and V contain several EGF-like repeats, and domains IV and VI have a globular conformation. Laminin, beta 1 is expressed in most tissues that produce basement membranes, and is one of the 3 chains constituting laminin 1, the first laminin isolated from Engelbreth-Holm-Swarm (EHS) tumor. A sequence in the beta 1 chain that is involved in cell attachment, chemotaxis, and binding to the laminin receptor was identified and shown to have the capacity to inhibit metastasis. [provided by RefSeq, Aug 2011]
UniProt Comments for LAMB1
LAMB1: 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.
Protein type: Secreted, signal peptide; Motility/polarity/chemotaxis; Secreted
Chromosomal Location of Human Ortholog: 7q22
Cellular Component: extracellular matrix; extracellular space; laminin-8 complex; laminin-1 complex; laminin-2 complex; perinuclear region of cytoplasm; laminin-10 complex; extracellular region; basement membrane
Molecular Function: integrin binding; enzyme binding; extracellular matrix structural constituent; glycosphingolipid binding; structural molecule activity
Biological Process: odontogenesis; axon guidance; extracellular matrix disassembly; extracellular matrix organization and biogenesis; neuronal-glial interaction involved in cerebral cortex radial glia guided migration; negative regulation of cell adhesion; cell adhesion; neurite development; positive regulation of epithelial cell proliferation; embryo implantation; positive regulation of cell migration
Disease: Lissencephaly 5
Research Articles on LAMB1
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Products associated with anti-LAMB1 antibody
Pathways associated with anti-LAMB1 antibody
Diseases associated with anti-LAMB1 antibody
Organs/Tissues associated with anti-LAMB1 antibody
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