Zinc-alpha-2-glycoprotein is a protein that in humans is encoded by the AZGP1gene.[1][2]
This gene expresses a soluble protein that stimulates lipolysis, induces a reduction in body fat in mice, is associated with the cachexia related to cancer, and is known to be expressed in secretory cells of lungepithelium.[3] In 2009, it was found that smoking increases expression of this gene, which is why smoking cessation leads to weight gain.[3] Zinc-alpha-2-glycoprotein levels also rise with onset of Diabetes 2, which accounts for weight loss thereafter.
References
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Tada T, Ohkubo I, Niwa M, et al. (1991). "Immunohistochemical localization of Zn-alpha 2-glycoprotein in normal human tissues". J. Histochem. Cytochem. 39 (9): 1221–6. doi:10.1177/39.9.1918940. PMID1918940.
Shibata S, Miura K (1982). "Nephritogenic glycoprotein. IX. Plasma Zn-alpha2-glycoprotein as a second source of nephritogenic glycoprotein in urine". Nephron. 31 (2): 170–6. doi:10.1159/000182638. PMID6896906.
Ueyama H, Deng HX, Ohkubo I (1994). "Molecular cloning and chromosomal assignment of the gene for human Zn-alpha 2-glycoprotein". Biochemistry. 32 (48): 12968–76. doi:10.1021/bi00211a004. PMID8241150.
Freije JP, Fueyo A, Uría JA, et al. (1994). "Human Zn-alpha 2-glycoprotein: complete genomic sequence, identification of a related pseudogene and relationship to class I major histocompatibility complex genes". Genomics. 18 (3): 575–87. doi:10.1016/S0888-7543(05)80359-3. PMID8307568.
Bonaldo MF, Lennon G, Soares MB (1997). "Normalization and subtraction: two approaches to facilitate gene discovery". Genome Res. 6 (9): 791–806. doi:10.1101/gr.6.9.791. PMID8889548.
Brysk MM, Lei G, Rajaraman S, et al. (1997). "Gene expression of zinc-alpha 2-glycoprotein in normal human epidermal and buccal epithelia". In Vivo. 11 (3): 271–4. PMID9239523.
Ogikubo O, Maeda T, Yamane T, et al. (1998). "Regulation of Zn-alpha2-glycoprotein-mediated cell adhesion by kininogens and their derivatives". Biochem. Biophys. Res. Commun. 252 (1): 257–62. doi:10.1006/bbrc.1998.9614. PMID9813179.
Sánchez LM, Chirino AJ, Bjorkman P (1999). "Crystal structure of human ZAG, a fat-depleting factor related to MHC molecules". Science. 283 (5409): 1914–9. doi:10.1126/science.283.5409.1914. PMID10206894.
Davidsson P, Nilsson CL (2000). "Peptide mapping of proteins in cerebrospinal fluid utilizing a rapid preparative two-dimensional electrophoretic procedure and matrix-assisted laser desorption/ionization mass spectrometry". Biochim. Biophys. Acta. 1473 (2–3): 391–9. doi:10.1016/s0304-4165(99)00197-x. PMID10594376.
Kennedy MW, Heikema AP, Cooper A, et al. (2001). "Hydrophobic ligand binding by Zn-alpha 2-glycoprotein, a soluble fat-depleting factor related to major histocompatibility complex proteins". J. Biol. Chem. 276 (37): 35008–13. doi:10.1074/jbc.C100301200. PMID11425849.
Hillier LW, Fulton RS, Fulton LA, et al. (2003). "The DNA sequence of human chromosome 7". Nature. 424 (6945): 157–64. doi:10.1038/nature01782. PMID12853948.
BURGI W, SCHMID K (1998). "Preparation and properties of Zn-alpha 2-glycoprotein of normal human plasma". J. Biol. Chem. 236: 1066–74. PMID13689030.