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You want to make sure your lighting is positioned at varying heights. If not, your lamps might create an unflattering circle that directs all light towards the middle of the room. This can make the room feel smaller. Howe CL, Granger BL, Hull M, Green SA, Gabel CA, Helenius A, Mellman I (Oct 1988). "Derived protein sequence, oligosaccharides, and membrane insertion of the 120-kDa lysosomal membrane glycoprotein (lgp120): identification of a highly conserved family of lysosomal membrane glycoproteins". Proceedings of the National Academy of Sciences of the United States of America. 85 (20): 7577–81. Bibcode: 1988PNAS...85.7577H. doi: 10.1073/pnas.85.20.7577. PMC 282235. PMID 3174652. Sawada R, Jardine KA, Fukuda M (Apr 1993). "The genes of major lysosomal membrane glycoproteins, lamp-1 and lamp-2. 5'-flanking sequence of lamp-2 gene and comparison of exon organization in two genes". The Journal of Biological Chemistry. 268 (12): 9014–22. doi: 10.1016/S0021-9258(18)52972-0. PMID 8517882.LAMP1 expression on the surface of tumor cells has been observed for a number of different cancer types, particularly in highly metastatic cancers such as pancreatic cancer, [18] [19] colon cancer [16] [17] and melanoma. [16] [17] The structure of LAMP1 correlates with differentiation [8] [20] and metastatic potential [11] of tumor cells as it is thought to help mediate cell-cell adhesion [17] and migration. [15] [18] Indeed, the adhesion of some cancer cells to the extracellular matrix is mediated by interactions between LAMP1 and LAMP2 and E-selectin and galectins, with the LAMPs serving as ligands for the cell-adhesion molecules. [17]

Höning S, Sandoval IV, von Figura K (Aug 1998). "A di-leucine-based motif in the cytoplasmic tail of LIMP-II and tyrosinase mediates selective binding of AP-3". The EMBO Journal. 17 (5): 1304–14. doi: 10.1093/emboj/17.5.1304. PMC 1170479. PMID 9482728. Viitala J, Carlsson SR, Siebert PD, Fukuda M (Jun 1988). "Molecular cloning of cDNAs encoding lamp A, a human lysosomal membrane glycoprotein with apparent Mr approximately equal to 120,000". Proceedings of the National Academy of Sciences of the United States of America. 85 (11): 3743–7. Bibcode: 1988PNAS...85.3743V. doi: 10.1073/pnas.85.11.3743. PMC 280294. PMID 3131762. a b c d e Carlsson SR, Fukuda M (Dec 1989). "Structure of human lysosomal membrane glycoprotein 1. Assignment of disulfide bonds and visualization of its domain arrangement". The Journal of Biological Chemistry. 264 (34): 20526–31. doi: 10.1016/S0021-9258(19)47094-4. PMID 2584229.a b c d e f g h Andrejewski N, Punnonen EL, Guhde G, Tanaka Y, Lüllmann-Rauch R, Hartmann D, von Figura K, Saftig P (Apr 1999). "Normal lysosomal morphology and function in LAMP-1-deficient mice". The Journal of Biological Chemistry. 274 (18): 12692–701. doi: 10.1074/jbc.274.18.12692. PMID 10212251. Lee N, Wang WC, Fukuda M (Nov 1990). "Granulocytic differentiation of HL-60 cells is associated with increase of poly-N-acetyllactosamine in Asn-linked oligosaccharides attached to human lysosomal membrane glycoproteins". The Journal of Biological Chemistry. 265 (33): 20476–87. doi: 10.1016/S0021-9258(17)30529-X. PMID 2243101. poly-N-acetyllactosamine groups which are involved in interactions with selectin and other glycan-binding proteins [11] a b c Carlsson SR, Roth J, Piller F, Fukuda M (Dec 1988). "Isolation and characterization of human lysosomal membrane glycoproteins, h-lamp-1 and h-lamp-2. Major sialoglycoproteins carrying polylactosaminoglycan". The Journal of Biological Chemistry. 263 (35): 18911–9. doi: 10.1016/S0021-9258(18)37369-1. PMID 3143719. To help you improve the lighting in your home, we have everything from ceiling to floor lamps, as well as all of the in-betweens. A lamp here, a lamp there