http://purl.uniprot.org/citations/33986552 | http://www.w3.org/1999/02/22-rdf-syntax-ns#type | http://purl.uniprot.org/core/Journal_Citation |
http://purl.uniprot.org/citations/33986552 | http://www.w3.org/2000/01/rdf-schema#comment | "GDP-mannose (GDP-Man) is a key metabolite essential for protein glycosylation and glycophosphatidylinositol anchor synthesis, and aberrant cellular GDP-Man levels have been associated with multiple human diseases. How cells maintain homeostasis of GDP-Man is unknown. Here, we report the cryo-EM structures of human GMPPA-GMPPB complex, the protein machinery responsible for GDP-Man synthesis, in complex with GDP-Man or GTP. Unexpectedly, we find that the catalytically inactive subunit GMPPA displays a much higher affinity to GDP-Man than the active subunit GMPPB and, subsequently, inhibits the catalytic activity of GMPPB through a unique C-terminal loop of GMPPA. Importantly, disruption of the interactions between GMPPA and GMPPB or the binding of GDP-Man to GMPPA in zebrafish leads to abnormal brain development and muscle abnormality, analogous to phenotypes observed in individuals carrying GMPPA or GMPPB mutations. We conclude that GMPPA acts as a cellular sensor to maintain mannose homeostasis through allosterically regulating GMPPB."xsd:string |
http://purl.uniprot.org/citations/33986552 | http://purl.org/dc/terms/identifier | "doi:10.1038/s41594-021-00591-9"xsd:string |
http://purl.uniprot.org/citations/33986552 | http://purl.uniprot.org/core/author | "Cai X."xsd:string |
http://purl.uniprot.org/citations/33986552 | http://purl.uniprot.org/core/author | "Huang W."xsd:string |
http://purl.uniprot.org/citations/33986552 | http://purl.uniprot.org/core/author | "Liu X."xsd:string |
http://purl.uniprot.org/citations/33986552 | http://purl.uniprot.org/core/author | "Liu Z."xsd:string |
http://purl.uniprot.org/citations/33986552 | http://purl.uniprot.org/core/author | "Wang Y."xsd:string |
http://purl.uniprot.org/citations/33986552 | http://purl.uniprot.org/core/author | "Wang J."xsd:string |
http://purl.uniprot.org/citations/33986552 | http://purl.uniprot.org/core/author | "Qin J."xsd:string |
http://purl.uniprot.org/citations/33986552 | http://purl.uniprot.org/core/author | "Yang F."xsd:string |
http://purl.uniprot.org/citations/33986552 | http://purl.uniprot.org/core/author | "Zheng L."xsd:string |
http://purl.uniprot.org/citations/33986552 | http://purl.uniprot.org/core/author | "Tian M."xsd:string |
http://purl.uniprot.org/citations/33986552 | http://purl.uniprot.org/core/author | "Gao N."xsd:string |
http://purl.uniprot.org/citations/33986552 | http://purl.uniprot.org/core/author | "Mo X."xsd:string |
http://purl.uniprot.org/citations/33986552 | http://purl.uniprot.org/core/author | "Jia D."xsd:string |
http://purl.uniprot.org/citations/33986552 | http://purl.uniprot.org/core/date | "2021"xsd:gYear |
http://purl.uniprot.org/citations/33986552 | http://purl.uniprot.org/core/name | "Nat Struct Mol Biol"xsd:string |
http://purl.uniprot.org/citations/33986552 | http://purl.uniprot.org/core/pages | "1-12"xsd:string |
http://purl.uniprot.org/citations/33986552 | http://purl.uniprot.org/core/title | "Cryo-EM structures of human GMPPA-GMPPB complex reveal how cells maintain GDP-mannose homeostasis."xsd:string |
http://purl.uniprot.org/citations/33986552 | http://purl.uniprot.org/core/volume | "28"xsd:string |
http://purl.uniprot.org/citations/33986552 | http://www.w3.org/2004/02/skos/core#exactMatch | http://purl.uniprot.org/pubmed/33986552 |
http://purl.uniprot.org/citations/33986552 | http://xmlns.com/foaf/0.1/primaryTopicOf | https://pubmed.ncbi.nlm.nih.gov/33986552 |
http://purl.uniprot.org/uniprot/#_F1R683-mappedCitation-33986552 | http://www.w3.org/1999/02/22-rdf-syntax-ns#object | http://purl.uniprot.org/citations/33986552 |
http://purl.uniprot.org/uniprot/#_Q96IJ6-mappedCitation-33986552 | http://www.w3.org/1999/02/22-rdf-syntax-ns#object | http://purl.uniprot.org/citations/33986552 |