NACA prevents short recently synthesized (i.e., nascent) ribosome-associated polypeptides from inappropriate interactions with cytosolic proteins. NACA binds nascent-polypeptide domains emerging from ribosomes unless it contains a signal peptide which is fully exposed. Depletion of NACA from ribosomes carrying nascent polypeptides allows the signal recognition particle (SRP) to crosslink to polypeptides regardless of whether or not they contain signal peptides or not. In the absence of NACA, proteins lacking signal peptides can be mis-translocated into the endoplasmic reticulum.[2][4]
The NACA protein is expressed in bone during development and acts as a transcriptional coactivator in conjunction with acidic activators.[3]
↑ 2.02.1Wiedmann B, Sakai H, Davis TA, Wiedmann M (August 1994). "A protein complex required for signal-sequence-specific sorting and translocation". Nature. 370 (6489): 434–40. doi:10.1038/370434a0. PMID8047162.
↑Stilo R, Liguoro D, di Jeso B, Leonardi A, Vito P (April 2003). "The alpha-chain of the nascent polypeptide-associated complex binds to and regulates FADD function". Biochem. Biophys. Res. Commun. 303 (4): 1034–41. doi:10.1016/S0006-291X(03)00487-X. PMID12684039.
↑Yoshida K, Nogami S, Satoh S, Tanaka-Nakadate S, Hiraishi H, Terano A, Shirataki H (May 2005). "Interaction of the taxilin family with the nascent polypeptide-associated complex that is involved in the transcriptional and translational processes". Genes Cells. 10 (5): 465–76. doi:10.1111/j.1365-2443.2005.00848.x. PMID15836775.
Further reading
Wiedmann B, Sakai H, Davis TA, Wiedmann M (1994). "A protein complex required for signal-sequence-specific sorting and translocation". Nature. 370 (6489): 434–40. doi:10.1038/370434a0. PMID8047162.
Maruyama K, Sugano S (1994). "Oligo-capping: a simple method to replace the cap structure of eukaryotic mRNAs with oligoribonucleotides". Gene. 138 (1–2): 171–4. doi:10.1016/0378-1119(94)90802-8. PMID8125298.
Yotov WV, St-Arnaud R (1996). "Mapping of the human gene for the alpha-NAC/1.9.2 (NACA/1.9.2) transcriptional coactivator to Chromosome 12q23-24.1". Mamm. Genome. 7 (2): 163–4. doi:10.1007/BF03035343. PMID8835540.
Suzuki Y, Yoshitomo-Nakagawa K, Maruyama K, et al. (1997). "Construction and characterization of a full length-enriched and a 5'-end-enriched cDNA library". Gene. 200 (1–2): 149–56. doi:10.1016/S0378-1119(97)00411-3. PMID9373149.
Munz B, Wiedmann M, Lochmüller H, Werner S (1999). "Cloning of novel injury-regulated genes. Implications for an important role of the muscle-specific protein skNAC in muscle repair". J. Biol. Chem. 274 (19): 13305–10. doi:10.1074/jbc.274.19.13305. PMID10224091.
Beatrix B, Sakai H, Wiedmann M (2001). "The alpha and beta subunit of the nascent polypeptide-associated complex have distinct functions". J. Biol. Chem. 275 (48): 37838–45. doi:10.1074/jbc.M006368200. PMID10982809.
Sims RJ, Weihe EK, Zhu L, et al. (2002). "m-Bop, a repressor protein essential for cardiogenesis, interacts with skNAC, a heart- and muscle-specific transcription factor". J. Biol. Chem. 277 (29): 26524–9. doi:10.1074/jbc.M204121200. PMID12011100.
Kim SH, Shim KS, Lubec G (2002). "Human brain nascent polypeptide-associated complex alpha subunit is decreased in patients with Alzheimer' s disease and Down syndrome". J. Investig. Med. 50 (4): 293–301. doi:10.2310/6650.2002.33287. PMID12109594.
Behrends U, Jandl T, Golbeck A, et al. (2002). "Novel products of the HUD, HUC, NNP-1 and alpha-internexin genes identified by autologous antibody screening of a pediatric neuroblastoma library". Int. J. Cancer. 100 (6): 669–77. doi:10.1002/ijc.10550. PMID12209604.
Mossabeb R, Seiberler S, Mittermann I, et al. (2002). "Characterization of a novel isoform of alpha-nascent polypeptide-associated complex as IgE-defined autoantigen". J. Invest. Dermatol. 119 (4): 820–9. doi:10.1046/j.1523-1747.2002.00518.x. PMID12406326.
Stilo R, Liguoro D, di Jeso B, et al. (2003). "The alpha-chain of the nascent polypeptide-associated complex binds to and regulates FADD function". Biochem. Biophys. Res. Commun. 303 (4): 1034–41. doi:10.1016/S0006-291X(03)00487-X. PMID12684039.
Papachristou DJ, Batistatou A, Sykiotis GP, et al. (2003). "Activation of the JNK-AP-1 signal transduction pathway is associated with pathogenesis and progression of human osteosarcomas". Bone. 32 (4): 364–71. doi:10.1016/S8756-3282(03)00026-7. PMID12689679.
Hämmerle K, Shayan P, Niemeyer CM, Flotho C (2003). "Expression analysis of alpha-NAC and ANX2 in juvenile myelomonocytic leukemia using SMART polymerase chain reaction and "virtual Northern" hybridization". Cancer Genet. Cytogenet. 142 (2): 149–52. doi:10.1016/S0165-4608(02)00841-5. PMID12699894.
Ota T, Suzuki Y, Nishikawa T, et al. (2004). "Complete sequencing and characterization of 21,243 full-length human cDNAs". Nat. Genet. 36 (1): 40–5. doi:10.1038/ng1285. PMID14702039.