{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,2,20]],"date-time":"2026-02-20T23:17:45Z","timestamp":1771629465261,"version":"3.50.1"},"reference-count":33,"publisher":"Proceedings of the National Academy of Sciences","issue":"10","content-domain":{"domain":["www.pnas.org"],"crossmark-restriction":true},"short-container-title":["Proc. Natl. Acad. Sci. U.S.A."],"published-print":{"date-parts":[[2006,3,7]]},"abstract":"<jats:p>\n            The conserved oligomeric Golgi (COG) complex is a heterooctameric complex that regulates intraGolgi trafficking and the integrity of the Golgi compartment in eukaryotic cells. Here, we describe a patient with a mild form of congenital disorder of glycosylation type II (CDG-II) that is caused by a deficiency in the Cog1 subunit of the complex. This patient has a defect in both N- and O-glycosylation. Mass spectrometric analysis of the structures of the N-linked glycans released from glycoproteins from the patient's serum revealed a reduction in sialic acid and galactose residues. Peanut agglutinin (PNA) lectin staining revealed a decrease in sialic acids on core 1 mucin type O-glycans, indicating a combined defect in N- and O-glycosylation. Sequence analysis of the\n            <jats:italic>COG1<\/jats:italic>\n            cDNA and gene identified a homozygous insertion of a single nucleotide (2659\u20132660insC), which is predicted to lead to a premature translation stop and truncation of the C terminus of the Cog1 protein by 80 amino acids. This mutation destabilizes several other COG subunits and alters their subcellular localization and hence the overall integrity of the COG complex. This results in reduced levels and\/or altered Golgi localization of \u03b1-mannosidase II and \u03b2-1,4 galactosyltransferase I, which links it to the glycosylation deficiency. Transfection of primary fibroblasts of this patient with the full length hemagglutinin-tagged Cog1 indeed restored \u03b2-1,4 galactosyltransferase Golgi localization. We propose naming this disorder CDG-II\/Cog1, or CDG-II caused by Cog1 deficiency.\n          <\/jats:p>","DOI":"10.1073\/pnas.0507685103","type":"journal-article","created":{"date-parts":[[2006,3,1]],"date-time":"2006-03-01T02:48:37Z","timestamp":1141181317000},"page":"3764-3769","update-policy":"https:\/\/doi.org\/10.1073\/pnas.cm10313","source":"Crossref","is-referenced-by-count":159,"title":["Conserved oligomeric Golgi complex subunit 1 deficiency reveals a previously uncharacterized congenital disorder of glycosylation type II"],"prefix":"10.1073","volume":"103","author":[{"given":"Fran\u00e7ois","family":"Foulquier","sequence":"first","affiliation":[{"name":"Laboratory for *Molecular Diagnostics and"}]},{"given":"Eliza","family":"Vasile","sequence":"additional","affiliation":[{"name":"Department of Biology, Massachusetts Institute of Technology, Cambridge, MA 02139;"}]},{"given":"Els","family":"Schollen","sequence":"additional","affiliation":[{"name":"Laboratory for *Molecular Diagnostics and"}]},{"given":"Nico","family":"Callewaert","sequence":"additional","affiliation":[{"name":"Department of Molecular Biomedical Research, University of Ghent and Flanders Interuniversity Institute for Biotechnology, Technologiepark 927, B-9052 Zwijnaarde, Belgium;"}]},{"given":"Tim","family":"Raemaekers","sequence":"additional","affiliation":[{"name":"Membrane Trafficking, Center for Human Genetics, Gasthuisberg, Katholieke Universiteit Leuven and Flanders Interuniversity Institute for Biotechnology 4, 3000 Leuven, Belgium;"}]},{"given":"Dulce","family":"Quelhas","sequence":"additional","affiliation":[{"name":"Medical Genetics Institute, Clinical Biology Department, Pra\u00e7a Pedro Nunes 88, 4050 Porto, Portugal;"}]},{"given":"Jaak","family":"Jaeken","sequence":"additional","affiliation":[{"name":"Department of Pediatrics, Centre for Metabolic Disease, Gasthuisberg, 3000 Leuven, Belgium; and"}]},{"given":"Philippa","family":"Mills","sequence":"additional","affiliation":[{"name":"**Biochemistry, Endocrinology, and Metabolism Unit, Institute of Child Health, University College London, 30 Guilford Street, London WC1N 1EH, United Kingdom"}]},{"given":"Bryan","family":"Winchester","sequence":"additional","affiliation":[{"name":"**Biochemistry, Endocrinology, and Metabolism Unit, Institute of Child Health, University College London, 30 Guilford Street, London WC1N 1EH, United Kingdom"}]},{"given":"Monty","family":"Krieger","sequence":"additional","affiliation":[{"name":"Department of Biology, Massachusetts Institute of Technology, Cambridge, MA 02139;"}]},{"given":"Wim","family":"Annaert","sequence":"additional","affiliation":[{"name":"Membrane Trafficking, Center for Human Genetics, Gasthuisberg, Katholieke Universiteit Leuven and Flanders Interuniversity Institute for Biotechnology 4, 3000 Leuven, Belgium;"}]},{"given":"Gert","family":"Matthijs","sequence":"additional","affiliation":[{"name":"Laboratory for *Molecular Diagnostics and"}]}],"member":"341","published-online":{"date-parts":[[2006,2,28]]},"reference":[{"key":"e_1_3_3_1_2","doi-asserted-by":"publisher","DOI":"10.1203\/00006450-200211000-00003"},{"key":"e_1_3_3_2_2","doi-asserted-by":"publisher","DOI":"10.1023\/A:1024431131208"},{"key":"e_1_3_3_3_2","doi-asserted-by":"publisher","DOI":"10.1023\/A:1017249723165"},{"key":"e_1_3_3_4_2","doi-asserted-by":"publisher","DOI":"10.1146\/annurev.genom.2.1.129"},{"key":"e_1_3_3_5_2","doi-asserted-by":"publisher","DOI":"10.1002\/elps.1150090921"},{"key":"e_1_3_3_6_2","doi-asserted-by":"publisher","DOI":"10.1093\/glycob\/1.5.453"},{"key":"e_1_3_3_7_2","doi-asserted-by":"publisher","DOI":"10.1083\/jcb.200202016"},{"key":"e_1_3_3_8_2","doi-asserted-by":"publisher","DOI":"10.1016\/S1534-5807(01)00063-6"},{"key":"e_1_3_3_9_2","doi-asserted-by":"publisher","DOI":"10.1074\/jbc.M504590200"},{"key":"e_1_3_3_10_2","doi-asserted-by":"publisher","DOI":"10.1074\/jbc.M504590200"},{"key":"e_1_3_3_11_2","doi-asserted-by":"publisher","DOI":"10.1083\/jcb.102.5.1576"},{"key":"e_1_3_3_12_2","doi-asserted-by":"publisher","DOI":"10.1083\/jcb.200412003"},{"key":"e_1_3_3_13_2","doi-asserted-by":"publisher","DOI":"10.1091\/mbc.e03-09-0699"},{"key":"e_1_3_3_14_2","doi-asserted-by":"publisher","DOI":"10.1091\/mbc.10.10.3317"},{"key":"e_1_3_3_15_2","doi-asserted-by":"publisher","DOI":"10.1034\/j.1600-0854.2001.21111.x"},{"key":"e_1_3_3_16_2","doi-asserted-by":"publisher","DOI":"10.1091\/mbc.01-10-0495"},{"key":"e_1_3_3_17_2","doi-asserted-by":"publisher","DOI":"10.1083\/jcb.141.5.1107"},{"key":"e_1_3_3_18_2","doi-asserted-by":"publisher","DOI":"10.1083\/jcb.147.4.729"},{"key":"e_1_3_3_19_2","doi-asserted-by":"publisher","DOI":"10.1038\/nm1041"},{"key":"e_1_3_3_20_2","doi-asserted-by":"publisher","DOI":"10.1016\/S0021-9258(18)53387-1"},{"key":"e_1_3_3_21_2","doi-asserted-by":"publisher","DOI":"10.1373\/clinchem.2003.022541"},{"key":"e_1_3_3_22_2","doi-asserted-by":"publisher","DOI":"10.1016\/S0141-8130(01)00139-8"},{"key":"e_1_3_3_23_2","doi-asserted-by":"publisher","DOI":"10.1023\/A:1024476915278"},{"key":"e_1_3_3_24_2","doi-asserted-by":"publisher","DOI":"10.1083\/jcb.127.3.679"},{"key":"e_1_3_3_25_2","doi-asserted-by":"publisher","DOI":"10.1073\/pnas.96.3.915"},{"key":"e_1_3_3_26_2","doi-asserted-by":"publisher","DOI":"10.1091\/mbc.e02-06-0343"},{"key":"e_1_3_3_27_2","doi-asserted-by":"publisher","DOI":"10.1083\/jcb.200111081"},{"key":"e_1_3_3_28_2","doi-asserted-by":"publisher","DOI":"10.1128\/mcb.9.11.4799-4806.1989"},{"key":"e_1_3_3_29_2","doi-asserted-by":"publisher","DOI":"10.1093\/jb\/mvi024"},{"key":"e_1_3_3_30_2","doi-asserted-by":"publisher","DOI":"10.1073\/pnas.92.25.11766"},{"key":"e_1_3_3_31_2","doi-asserted-by":"publisher","DOI":"10.1074\/jbc.M400662200"},{"key":"e_1_3_3_32_2","author":"Ungar D.","year":"2006","unstructured":"D. Ungar, T. Oka, M. Krieger, F.-M. Hughson Trends Cell Biol, in press. (2006).","journal-title":"Trends Cell Biol"},{"key":"e_1_3_3_33_2","doi-asserted-by":"publisher","DOI":"10.1074\/jbc.M504597200"}],"container-title":["Proceedings of the National Academy of Sciences"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/pnas.org\/doi\/pdf\/10.1073\/pnas.0507685103","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2022,4,12]],"date-time":"2022-04-12T16:42:40Z","timestamp":1649781760000},"score":1,"resource":{"primary":{"URL":"https:\/\/pnas.org\/doi\/full\/10.1073\/pnas.0507685103"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2006,2,28]]},"references-count":33,"journal-issue":{"issue":"10","published-print":{"date-parts":[[2006,3,7]]}},"alternative-id":["10.1073\/pnas.0507685103"],"URL":"https:\/\/doi.org\/10.1073\/pnas.0507685103","relation":{},"ISSN":["0027-8424","1091-6490"],"issn-type":[{"value":"0027-8424","type":"print"},{"value":"1091-6490","type":"electronic"}],"subject":[],"published":{"date-parts":[[2006,2,28]]},"assertion":[{"value":"2005-09-02","order":0,"name":"received","label":"Received","group":{"name":"publication_history","label":"Publication History"}},{"value":"2006-02-28","order":2,"name":"published","label":"Published","group":{"name":"publication_history","label":"Publication History"}}]}}