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// Workers AI · dad joke modeWhat did APOA1BP say to its friend? "You're a binding pal.

From Wikipedia, the free encyclopedia

NAXE
Identifiers
AliasesNAXE, AIBP, YJEFN1, APOA1BP, NAD(P)HX epimerase, PEBEL
External IDsOMIM: 608862; MGI: 2180167; GeneCards: NAXE
Enzyme activity
EC #BRENDAExPASyKEGGMetaCyc
5.1.99.6↗↗↗↗
Orthologs
DatabasesNCBI: entry; OMA: entry
SpeciesHumanMouse
Entrez
Ensembl
UniProt
RefSeq (mRNA)

NM_144772

NM_144897

RefSeq (protein)

NP_658985

NP_659146

Location (UCSC)Chr 1: 156.59 – 156.61 MbChr 3: 87.96 – 87.97 Mb
PubMed search[3][4]
Wikidata
View/Edit HumanView/Edit Mouse

Apolipoprotein A-I-binding protein also known as APOA1BP is a protein that in humans is encoded by the APOA1BP gene.[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]

Structure

[edit]

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]

Function

[edit]

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 zebrafish APOA1BP ortholog Aibp is involved in angiogenesis regulation.[10] The protein was also shown to be involved in atherosclerosis protection.[11]

References

[edit]
  1. 1 2 3 GRCh38: Ensembl release 89: ENSG00000163382 – Ensembl, May 2017
  2. 1 2 3 GRCm38: Ensembl release 89: ENSMUSG00000028070 – Ensembl, May 2017
  3. ↑ "Human PubMed Reference:". National Center for Biotechnology Information, U.S. National Library of Medicine.
  4. ↑ "Mouse PubMed Reference:". National Center for Biotechnology Information, U.S. National Library of Medicine.
  5. 1 2 3 4 Ritter M, Buechler C, Boettcher A, Barlage S, Schmitz-Madry A, Orsó E, et al. (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. PMID 11991719.
  6. ↑ Chiu LW, Lin SS, Chen CH, Lin CH, Lee NC, Hong SY, et al. (October 2021). "NAXE gene mutation-related progressive encephalopathy: A case report and literature review". Medicine. 100 (42) e27548. Baltimore. doi:10.1097/MD.0000000000027548. PMC 8542128. PMID 34678889.
  7. ↑ "NAXE NAD(P)HX epimerase [Homo sapiens (human)] - Gene - NCBI". www.ncbi.nlm.nih.gov. Retrieved 2024-03-28.
  8. ↑ Rudolph C, Sigruener A, Hartmann A, Orso E, Bals-Pratsch M, Gronwald W, et al. (May 2007). "ApoA-I-binding protein (AI-BP) and its homologues hYjeF_N2 and hYjeF_N3 comprise the YjeF_N domain protein family in humans with a role in spermiogenesis and oogenesis". Hormone and Metabolic Research = Hormon- und Stoffwechselforschung = Hormones et Metabolisme. 39 (5): 322–335. doi:10.1055/s-2007-977699. PMID 17533573.
  9. ↑ Jha KN, Shumilin IA, Digilio LC, Chertihin O, Zheng H, Schmitz G, et al. (May 2008). "Biochemical and Structural Characterization of Apolipoprotein A-I Binding Protein, a Novel Phosphoprotein with a Potential Role in Sperm Capacitation". Endocrinology. 149 (5): 2108–2120. doi:10.1210/en.2007-0582. PMC 2329272. PMID 18202122.
  10. 1 2 Fang L, Choi SH, Baek JS, Liu C, Almazan F, Ulrich F, et al. (June 2013). "Control of angiogenesis by AIBP-mediated cholesterol efflux". Nature. 498 (7452): 118–122. Bibcode:2013Natur.498..118F. doi:10.1038/nature12166. PMC 3760669. PMID 23719382.
  11. 1 2 Schneider DA, Choi SH, Agatisa-Boyle C, Zhu L, Kim J, Pattison J, et al. (May 2018). "AIBP protects against metabolic abnormalities and atherosclerosis". Journal of Lipid Research. 59 (5): 854–863. doi:10.1194/jlr.m083618. PMC 5928435. PMID 29559522.