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Hexosamine Biosynth...
Hexosamine Biosynthetic Pathway Mutations Cause Neuromuscular Transmission Defect
- Article/chapterEnglish2011
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LIBRIS-ID:oai:gup.ub.gu.se/162108
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https://gup.ub.gu.se/publication/162108URI
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Subject category:ref swepub-contenttype
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Subject category:art swepub-publicationtype
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Neuromuscular junctions (NMJs) are synapses that transmit impulses from motor neurons to skeletal muscle fibers leading to muscle contraction. Study of hereditary disorders of neuromusculartransmission, termed congenital myasthenic syndromes (CMS), has helped elucidate fundamental processes influencing development and function of the nerve-muscle synapse. Using genetic linkage, we find 18 different biallelic mutations in the gene encoding glutamine-fructose-6-phosphate transaminase 1 (GFPT1) in 13 unrelated families with an autosomal recessive CMS. Consistent with these data, downregulation of the GFPT1 ortholog gfpt1 in zebrafish embryos altered muscle fiber morphology and impaired neuromuscular junction development. GFPT1 is the key enzyme of the hexosaminepathway yielding the amino sugar UDP-N-acetylglucosamine, an essential substrate for protein glycosylation. Our findings provide further impetus to study the glycobiology of NMJ and synapses in general.
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Muller, JS
(author)
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Dusl, M
(author)
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Strom, TM
(author)
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Guergueltcheva, V
(author)
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Diepolder, I
(author)
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Laval, SH
(author)
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Maxwell, S
(author)
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Cossins, J
(author)
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Krause, S
(author)
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Muelas, N
(author)
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Vilchez, JJ
(author)
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Colomer, J
(author)
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Mallebrera, CJ
(author)
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Nascimento, A
(author)
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Nafissi, S
(author)
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Kariminejad, A
(author)
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Nilipour, Y
(author)
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Bozorgmehr, B
(author)
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Najmabadi, H
(author)
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Rodolico, C
(author)
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Sieb, JP
(author)
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Steinlein, OK
(author)
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Schlotter, B
(author)
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Schoser, B
(author)
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Kirschner, J
(author)
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Herrmann, R
(author)
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Voit, T
(author)
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Oldfors, Anders,1951Gothenburg University,Göteborgs universitet,Institutionen för biomedicin, avdelningen för patologi,Institute of Biomedicine, Department of Pathology(Swepub:gu)xoland
(author)
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Lindbergh, C
(author)
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Urtizberea, A
(author)
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von der Hagen, M
(author)
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Hubner, A
(author)
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Palace, J
(author)
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Bushby, K
(author)
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Straub, V
(author)
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Beeson, D
(author)
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Abicht, A
(author)
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Lochmuller, H
(author)
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Göteborgs universitetInstitutionen för biomedicin, avdelningen för patologi
(creator_code:org_t)
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In:American journal of human genetics88:2, s. 162-1720002-9297
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Senderek, J
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Muller, JS
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Dusl, M
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Strom, TM
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Guergueltcheva, ...
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Diepolder, I
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show more...
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Laval, SH
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Maxwell, S
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Cossins, J
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Krause, S
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Muelas, N
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Vilchez, JJ
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Colomer, J
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Mallebrera, CJ
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Nascimento, A
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Nafissi, S
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Kariminejad, A
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Nilipour, Y
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Bozorgmehr, B
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Najmabadi, H
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Rodolico, C
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Sieb, JP
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Steinlein, OK
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Schlotter, B
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Schoser, B
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Kirschner, J
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Herrmann, R
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Voit, T
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Oldfors, Anders, ...
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Lindbergh, C
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Urtizberea, A
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von der Hagen, M
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Hubner, A
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Palace, J
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Bushby, K
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Straub, V
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Beeson, D
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Abicht, A
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Lochmuller, H
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- MEDICAL AND HEALTH SCIENCES
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MEDICAL AND HEAL ...
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and Basic Medicine
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University of Gothenburg