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PNG1, a Yeast Gene Encoding a Highly Conserved Peptide:N-glycanase

Overview
Journal J Cell Biol
Specialty Cell Biology
Date 2000 Jun 1
PMID 10831608
Citations 86
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Abstract

It has been proposed that cytoplasmic peptide:N-glycanase (PNGase) may be involved in the proteasome-dependent quality control machinery used to degrade newly synthesized glycoproteins that do not correctly fold in the ER. However, a lack of information about the structure of the enzyme has limited our ability to obtain insight into its precise biological function. A PNGase-defective mutant (png1-1) was identified by screening a collection of mutagenized strains for the absence of PNGase activity in cell extracts. The PNG1 gene was mapped to the left arm of chromosome XVI by genetic approaches and its open reading frame was identified. PNG1 encodes a soluble protein that, when expressed in Escherichia coli, exhibited PNGase activity. PNG1 may be required for efficient proteasome-mediated degradation of a misfolded glycoprotein. Subcellular localization studies indicate that Png1p is present in the nucleus as well as the cytosol. Sequencing of expressed sequence tag clones revealed that Png1p is highly conserved in a wide variety of eukaryotes including mammals, suggesting that the enzyme has an important function.

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References
1.
Plemper R, Wolf D . Retrograde protein translocation: ERADication of secretory proteins in health and disease. Trends Biochem Sci. 1999; 24(7):266-70. DOI: 10.1016/s0968-0004(99)01420-6. View

2.
Weng S, Spiro R . Demonstration of a peptide:N-glycosidase in the endoplasmic reticulum of rat liver. Biochem J. 1997; 322 ( Pt 2):655-61. PMC: 1218239. DOI: 10.1042/bj3220655. View

3.
Hill J, Myers A, Koerner T, Tzagoloff A . Yeast/E. coli shuttle vectors with multiple unique restriction sites. Yeast. 1986; 2(3):163-7. DOI: 10.1002/yea.320020304. View

4.
Yu H, Kaung G, Kobayashi S, Kopito R . Cytosolic degradation of T-cell receptor alpha chains by the proteasome. J Biol Chem. 1997; 272(33):20800-4. DOI: 10.1074/jbc.272.33.20800. View

5.
Romisch K . Surfing the Sec61 channel: bidirectional protein translocation across the ER membrane. J Cell Sci. 1999; 112 ( Pt 23):4185-91. DOI: 10.1242/jcs.112.23.4185. View