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GNPTG | N-acetylglucosamine-1-phosphate transferase, gamma subunit; May recognize the substrate of GlcNAc-1- phosphotransferase but also the lysosomal proteins with mannose-6- phosphate residues (305 aa) | |||
TUSC3 | tumor suppressor candidate 3; Magnesium transporter. May be involved in N- glycosylation through its association with N-oligosaccharyl transferase (348 aa) | |||
CANX | calnexin; Calcium-binding protein that interacts with newly synthesized glycoproteins in the endoplasmic reticulum. It may act in assisting protein assembly and/or in the retention within the ER of unassembled protein subunits. It seems to play a major role in the quality control apparatus of the ER by the retention of incorrectly folded proteins. Associated with partial T-cell antigen receptor complexes that escape the ER of immature thymocytes, it may function as a signaling complex regulating thymocyte maturation. Additionally it may play a role in receptor- mediated endocytosis at [...] (592 aa) | |||
PRKCSH | protein kinase C substrate 80K-H; Regulatory subunit of glucosidase II (528 aa) | |||
PCSK2 | proprotein convertase subtilisin/kexin type 2 (638 aa) | |||
SI | sucrase-isomaltase (alpha-glucosidase); Plays an important role in the final stage of carbohydrate digestion. Isomaltase activity is specific for both alpha-1,4- and alpha-1,6-oligosaccharides (1827 aa) | |||
FURIN | furin (paired basic amino acid cleaving enzyme); Furin is likely to represent the ubiquitous endoprotease activity within constitutive secretory pathways and capable of cleavage at the RX(K/R)R consensus motif (794 aa) | |||
NCF1 | neutrophil cytosolic factor 1; May be required for activation of the latent NADPH oxidase (necessary for superoxide production) (By similarity) (390 aa) | |||
PCSK4 | proprotein convertase subtilisin/kexin type 4; Involved in the processing of hormone and other protein precursors at sites comprised of pairs of basic amino acid residues. Plays a role in transcriptional coactivation. May be involved in stabilizing the multiprotein transcription complex (755 aa) | |||
PCSK6 | proprotein convertase subtilisin/kexin type 6 (968 aa) | |||
PCSK1 | proprotein convertase subtilisin/kexin type 1; Involved in the processing of hormone and other protein precursors at sites comprised of pairs of basic amino acid residues. Substrates include POMC, renin, enkephalin, dynorphin, somatostatin and insulin (753 aa) | |||
PCSK7 | proprotein convertase subtilisin/kexin type 7; Likely to represent a ubiquitous endoprotease activity within constitutive secretory pathways and capable of cleavage at the RXXX[KR]R consensus motif (785 aa) | |||
CLGN | calmegin; Probably plays an important role in spermatogenesis. Binds calcium ions (610 aa) | |||
ERO1LB | ERO1-like beta (S. cerevisiae); Essential oxidoreductase that oxidizes proteins in the endoplasmic reticulum to produce disulfide bonds. Acts by oxidizing directly P4HB/PDI isomerase through a direct disulfide exchange. Does not act as a direct oxidant of folding substrate, but relies on P4HB/PDI to transfer oxidizing equivalent. Associates with ERP44 but not with GRP54, demonstrating that it does not oxidize all PDI related proteins and can discriminate between PDI and related proteins. Its reoxidation probably involves electron transfer to molecular oxygen via FAD. Acts independently [...] (467 aa) | |||
PGAP1 | post-GPI attachment to proteins 1; Involved in inositol deacylation of GPI-anchored proteins. GPI inositol deacylation may important for efficient transport of GPI-anchored proteins from the endoplasmic reticulum to the Golgi (By similarity) (922 aa) | |||
ERGIC3 | ERGIC and golgi 3; Possible role in transport between endoplasmic reticulum and Golgi (By similarity) (388 aa) | |||
ERGIC2 | ERGIC and golgi 2; Possible role in transport between endoplasmic reticulum and Golgi (By similarity) (377 aa) | |||
MAGT1 | magnesium transporter 1; May be involved in N-glycosylation through its association with N-oligosaccharyl transferase. May be involved in Mg(2+) transport in epithelial cells (367 aa) | |||
COPA | coatomer protein complex, subunit alpha; The coatomer is a cytosolic protein complex that binds to dilysine motifs and reversibly associates with Golgi non- clathrin-coated vesicles, which further mediate biosynthetic protein transport from the ER, via the Golgi up to the trans Golgi network. Coatomer complex is required for budding from Golgi membranes, and is essential for the retrograde Golgi-to-ER transport of dilysine-tagged proteins. In mammals, the coatomer can only be recruited by membranes associated to ADP-ribosylation factors (ARFs), which are small GTP-binding proteins; the [...] (1233 aa) | |||
SEC63 | SEC63 homolog (S. cerevisiae); Required for integral membrane and secreted preprotein translocation across the endoplasmic reticulum membrane (760 aa) | |||
UGGT2 | UDP-glucose glycoprotein glucosyltransferase 2; Recognizes glycoproteins with minor folding defects. Reglucosylates single N-glycans near the misfolded part of the protein, thus providing quality control for protein folding in the endoplasmic reticulum. Reglucosylated proteins are recognized by calreticulin for recycling to the endoplasmic reticulum and refolding or degradation (By similarity) (1516 aa) | |||
ERGIC1 | endoplasmic reticulum-golgi intermediate compartment (ERGIC) 1; Possible role in transport between endoplasmic reticulum and Golgi (290 aa) | |||
ERO1L | ERO1-like (S. cerevisiae); Essential oxidoreductase that oxidizes proteins in the endoplasmic reticulum to produce disulfide bonds. Acts by oxidizing directly P4HB/PDI isomerase through a direct disulfide exchange. Does not act as a direct oxidant of folding substrate, but relies on P4HB/PDI to transfer oxidizing equivalent. Associates with ERP44 but not with GRP54, demonstrating that it does not oxidize all PDI related proteins and can discriminate between PDI and related proteins. Its reoxidation probably involves electron transfer to molecular oxygen via FAD. Acts independently of g [...] (468 aa) | |||
AMY2A | amylase, alpha 2A (pancreatic) (511 aa) | |||
PCSK5 | proprotein convertase subtilisin/kexin type 5; Likely to represent a widespread endoprotease activity within the constitutive and regulated secretory pathway. Capable of cleavage at the RX(K/R)R consensus motif. Plays an essential role in pregnancy establishment by proteolytic activation of a number of important factors such as BMP2, CALD1 and alpha- integrins (1860 aa) | |||
MGAM | maltase-glucoamylase (alpha-glucosidase); May serve as an alternate pathway for starch digestion when luminal alpha-amylase activity is reduced because of immaturity or malnutrition. May play a unique role in the digestion of malted dietary oligosaccharides used in food manufacturing (1857 aa) |