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- Table of Contents
10 Citations 1 Q&As
3 Citations 7 Q&As
Facts about Integrin beta-1.
Integrins alpha-2/beta-1, alpha- 3/beta-1, alpha-4/beta-1, alpha-5/beta-1, alpha-8/beta-1, alpha- 10/beta-1, alpha-11/beta-1 and alpha-V/beta-1 are receptors for fibronectin. Alpha-4/beta-1 recognizes one or more domain names within the alternatively spliced CS-1 and CS-5 regions of fibronectin.
Human | |
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Gene Name: | ITGB1 |
Uniprot: | P05556 |
Entrez: | 3688 |
Belongs to: |
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integrin beta chain family |
CD29 antigen; CD29; Fibronectin receptor subunit beta; FNRBVLAB; GPIIA; Integrin beta 1; integrin beta-1; integrin VLA-4 beta subunit; integrin, beta 1 (fibronectin receptor, beta polypeptide, antigen CD29 includesMDF2, MSK12); ITGB1; MDF2; MSK12; very late activation protein, beta polypeptide; VLA-4 subunit beta; VLA-BETA
Mass (kDA):
88.415 kDA
Human | |
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Location: | 10p11.22 |
Sequence: | 10; NC_000010.11 (32900318..32958230, complement) |
Isoform 1 is widely expressed, other isoforms are generally coexpressed with a more restricted distribution. Isoform 2 is expressed in skin, liver, skeletal muscle, cardiac muscle, placenta, umbilical vein endothelial cells, neuroblastoma cells, lymphoma cells, hepatoma cells and astrocytoma cells. Isoform 3 and isoform 4 are expressed in muscle, kidney, liver, placenta, cervical epithelium, umbilical vein endothelial cells, fibroblast cells, embryonal kidney cells, platelets and several blood cell lines. Isoform 4, rather than isoform 3, is selectively expressed in peripheral T-cells. Isoform 3 is expressed in non- proliferating and differentiated prostate gland epithelial cells and in platelets, on the surface of erythroleukemia cells and in various hematopoietic cell lines. Isoform 5 is expressed specifically in striated muscle (skeletal and cardiac muscle).
Cell membrane; Single-pass type I membrane protein. Cell projection, invadopodium membrane; Single-pass type I membrane protein. Cell projection, ruffle membrane; Single-pass type I membrane protein. Recycling endosome. Melanosome. Cleavage furrow. Cell projection, lamellipodium. Cell projection, ruffle. Cell junction, focal adhesion. Cell surface. Isoform 2 does not localize to focal adhesions. Highly enriched in stage I melanosomes. Located on plasma membrane of neuroblastoma NMB7 cells. In a lung cancer cell line, in prometaphase and metaphase, localizes diffusely at the membrane and in a f
PMID: 2958481 by Argraves W.S., et al. Amino acid sequence of the human fibronectin receptor.
PMID: 7681433 by Balzac F., et al. Expression and functional analysis of a cytoplasmic domain variant of the beta 1 integrin subunit.
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