Defective RFT1 causes CDG-1n

Summary
Organism
Homo sapiens (human)
Reactome
R-HSA-4570571
PubChem
R-HSA-4570571
Description
  • The N-glycan precursor is flipped across the ER membrane, moving it from the cytosolic side to the ER lumenal side. The exact mechanism of this translocation is not well understood but protein RFT1 homolog (RFT1) is known to be involved (Helenius et al. 2002). Defects in RFT1 are associated with congenital disorder of glycosylation 1n (RFT1-CDG, CDG-1n). The disease is a multi-system disorder characterised by under-glycosylated serum glycoproteins. Early-onset developmental retardation, dysmorphic features, hypotonia, coagulation disorders and immunodeficiency are reported features of this disorder (Haeuptle et al. 2008).
Click on a node on the pathway to see its details. Glycoproteins are marked with a glycoprotein icon in their name.
Displaying 1 entry
UniProt ID Protein Name Gene Symbol Pathway Viewer
Q96AA3 Man(5)GlcNAc(2)-PP-dolichol translocation protein RFT1
  • RFT1
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Displaying 1 entry
GlyTouCan ID KEGG GLYCAN ChEBI Pathway Viewer
G59406KS
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Acknowledgements

Supported by JST NBDC Grant Number JPMJND2204

Partly supported by NIH Common Fund Grant #1U01GM125267-01


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Last updated: April 6, 2026