Apolipoprotein A-I-binding protein also known as APOA1BP is a protein that in humans is encoded by the APOA1BPgene.[5] Progressive encephalopathy with brain edema and/or leukoencephalopathy-1 (PEBEL-1), a rare, lethal, neurometabolic disorder, is caused by mutation in NAXE gene (APOA1BP being its former name).[6]
APOA1BP gene is located on chromosome 1, with its specific location being 1q22. The gene contains 6 exons,[7] 5 introns, and spans 2.5 kb.[5] Expression is ubiquitous across all human tissues, with highest observed in kidney, heart, liver, testis, thyroid gland, adrenal gland.[5] APOA1BP contains Yje_FN domain.[8]
APOA1BP binds to APOA1, APOA2, and high-density lipoprotein (HDL).[5] In addition, APOA1BP appears to play a role in sperm capacitation.[9] It has been demonstrated that APOA1BP is involved in angiogenesis regulation, by accelerating cholesterol efflux from endothelial cells to HDL.[10][11] It is known that zebrafishAPOA1BP ortholog Aibp is involved in angiogenesis regulation.[10] The protein was also shown to be involved in atherosclerosis protection.[11]
^"Human PubMed Reference:". National Center for Biotechnology Information, U.S. National Library of Medicine.
^"Mouse PubMed Reference:". National Center for Biotechnology Information, U.S. National Library of Medicine.
^ abcdRitter M, Buechler C, Boettcher A, Barlage S, Schmitz-Madry A, Orsó E, Bared SM, Schmiedeknecht G, Baehr CH, Fricker G, Schmitz G (May 2002). "Cloning and characterization of a novel apolipoprotein A-I binding protein, AI-BP, secreted by cells of the kidney proximal tubules in response to HDL or ApoA-I". Genomics. 79 (5): 693–702. doi:10.1006/geno.2002.6761. PMID11991719.
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