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8 results on '"Timal-Stevenson, S."'

1. Mutations in the V-ATPase Assembly Factor VMA21 Cause a Congenital Disorder of Glycosylation With Autophagic Liver Disease

Author

Cannata Serio, Magda, Graham, Laurie A., Ashikov, A.M., Larsen, Lars Elmann, Raymond, Kimiyo, Timal-Stevenson, S., Gilissen, C.F., Rodenburg, R.J., Veltman, J.A., Simons, Matias, Lefeber, D.J., Cannata Serio, Magda, Graham, Laurie A., Ashikov, A.M., Larsen, Lars Elmann, Raymond, Kimiyo, Timal-Stevenson, S., Gilissen, C.F., Rodenburg, R.J., Veltman, J.A., Simons, Matias, and Lefeber, D.J.

Abstract

Contains fulltext : 230139.pdf (Publisher’s version ) (Open Access)

Published
2020

2. Mutations in the V-ATPase Assembly Factor VMA21 Cause a Congenital Disorder of Glycosylation With Autophagic Liver Disease

Author

Cannata Serio, Magda, Graham, Laurie A., Ashikov, A.M., Larsen, Lars Elmann, Raymond, Kimiyo, Timal-Stevenson, S., Gilissen, C.F., Rodenburg, R.J., Veltman, J.A., Simons, Matias, Lefeber, D.J., Cannata Serio, Magda, Graham, Laurie A., Ashikov, A.M., Larsen, Lars Elmann, Raymond, Kimiyo, Timal-Stevenson, S., Gilissen, C.F., Rodenburg, R.J., Veltman, J.A., Simons, Matias, and Lefeber, D.J.

Abstract

Contains fulltext : 230139.pdf (Publisher’s version ) (Open Access)

Published
2020

3. Mutations in the V-ATPase Assembly Factor VMA21 Cause a Congenital Disorder of Glycosylation With Autophagic Liver Disease

Author

Cannata Serio, Magda, Graham, Laurie A., Ashikov, A.M., Larsen, Lars Elmann, Raymond, Kimiyo, Timal-Stevenson, S., Gilissen, C.F., Rodenburg, R.J., Veltman, J.A., Simons, Matias, Lefeber, D.J., Cannata Serio, Magda, Graham, Laurie A., Ashikov, A.M., Larsen, Lars Elmann, Raymond, Kimiyo, Timal-Stevenson, S., Gilissen, C.F., Rodenburg, R.J., Veltman, J.A., Simons, Matias, and Lefeber, D.J.

Abstract

Contains fulltext : 230139.pdf (Publisher’s version ) (Open Access)

Published
2020

4. Biallelic variants in WARS2 encoding mitochondrial tryptophanyl-tRNA synthase in six individuals with mitochondrial encephalopathy

Author

Wortmann, S.B., Timal-Stevenson, S., Venselaar, H., Wintjes, L.T., Kopajtich, R., Feichtinger, R.G., Onnekink, C., Mühlmeister, M., Brandt, U., Smeitink, J.A.M., Veltman, J.A., Sperl, W., Lefeber, D.J., Pruijn, G., Stojanovic, V., Freisinger, P., Spronsen, F. van, Derks, T.G., Veenstra-Knol, H.E., Mayr, J.A., Rötig, A., Tarnopolsky, M., Prokisch, H., Rodenburg, R.J.T., Wortmann, S.B., Timal-Stevenson, S., Venselaar, H., Wintjes, L.T., Kopajtich, R., Feichtinger, R.G., Onnekink, C., Mühlmeister, M., Brandt, U., Smeitink, J.A.M., Veltman, J.A., Sperl, W., Lefeber, D.J., Pruijn, G., Stojanovic, V., Freisinger, P., Spronsen, F. van, Derks, T.G., Veenstra-Knol, H.E., Mayr, J.A., Rötig, A., Tarnopolsky, M., Prokisch, H., and Rodenburg, R.J.T.

Abstract

Contains fulltext : 182439.pdf (publisher's version ) (Closed access)

Published
2017

5. Biallelic variants in WARS2 encoding mitochondrial tryptophanyl-tRNA synthase in six individuals with mitochondrial encephalopathy

Author

Wortmann, S.B., Timal-Stevenson, S., Venselaar, H., Wintjes, L.T., Kopajtich, R., Feichtinger, R.G., Onnekink, C., Mühlmeister, M., Brandt, U., Smeitink, J.A.M., Veltman, J.A., Sperl, W., Lefeber, D.J., Pruijn, G., Stojanovic, V., Freisinger, P., Spronsen, F. van, Derks, T.G., Veenstra-Knol, H.E., Mayr, J.A., Rötig, A., Tarnopolsky, M., Prokisch, H., Rodenburg, R.J.T., Wortmann, S.B., Timal-Stevenson, S., Venselaar, H., Wintjes, L.T., Kopajtich, R., Feichtinger, R.G., Onnekink, C., Mühlmeister, M., Brandt, U., Smeitink, J.A.M., Veltman, J.A., Sperl, W., Lefeber, D.J., Pruijn, G., Stojanovic, V., Freisinger, P., Spronsen, F. van, Derks, T.G., Veenstra-Knol, H.E., Mayr, J.A., Rötig, A., Tarnopolsky, M., Prokisch, H., and Rodenburg, R.J.T.

Abstract

Contains fulltext : 182439.pdf (publisher's version ) (Closed access)

Published
2017

6. Biallelic variants in WARS2 encoding mitochondrial tryptophanyl-tRNA synthase in six individuals with mitochondrial encephalopathy

Author

Wortmann, S.B., Timal-Stevenson, S., Venselaar, H., Wintjes, L.T., Kopajtich, R., Feichtinger, R.G., Onnekink, C., Mühlmeister, M., Brandt, U., Smeitink, J.A.M., Veltman, J.A., Sperl, W., Lefeber, D.J., Pruijn, G., Stojanovic, V., Freisinger, P., Spronsen, F. van, Derks, T.G., Veenstra-Knol, H.E., Mayr, J.A., Rötig, A., Tarnopolsky, M., Prokisch, H., Rodenburg, R.J.T., Wortmann, S.B., Timal-Stevenson, S., Venselaar, H., Wintjes, L.T., Kopajtich, R., Feichtinger, R.G., Onnekink, C., Mühlmeister, M., Brandt, U., Smeitink, J.A.M., Veltman, J.A., Sperl, W., Lefeber, D.J., Pruijn, G., Stojanovic, V., Freisinger, P., Spronsen, F. van, Derks, T.G., Veenstra-Knol, H.E., Mayr, J.A., Rötig, A., Tarnopolsky, M., Prokisch, H., and Rodenburg, R.J.T.

Abstract

Contains fulltext : 182439.pdf (publisher's version ) (Closed access)

Published
2017

7. Diagnostic serum glycosylation profile in patients with intellectual disability as a result of MAN1B1 deficiency

Author

Scherpenzeel, M. van, Timal-Stevenson, S., Rymen, D., Hoischen, A., Wuhrer, M., Hipgrave-Ederveen, A., Grunewald, S., Peanne, R., Saada, A., Edvardson, S., Gronborg, S., Ruijter, G., Kattentidt-Mouravieva, A., Brum, J.M., Freckmann, M.L., Tomkins, S., Jalan, A., Prochazkova, D., Ondruskova, N., Hansikova, H., Willemsen, M.A., Hensbergen, P.J., Matthijs, G., Wevers, R.A., Veltman, J.A., Morava, E., Lefeber, D.J., Scherpenzeel, M. van, Timal-Stevenson, S., Rymen, D., Hoischen, A., Wuhrer, M., Hipgrave-Ederveen, A., Grunewald, S., Peanne, R., Saada, A., Edvardson, S., Gronborg, S., Ruijter, G., Kattentidt-Mouravieva, A., Brum, J.M., Freckmann, M.L., Tomkins, S., Jalan, A., Prochazkova, D., Ondruskova, N., Hansikova, H., Willemsen, M.A., Hensbergen, P.J., Matthijs, G., Wevers, R.A., Veltman, J.A., Morava, E., and Lefeber, D.J.

Abstract

Contains fulltext : 127752.pdf (publisher's version ) (Closed access), Congenital disorders of glycosylation comprise a group of genetic defects with a high frequency of intellectual disability, caused by deficient glycosylation of proteins and lipids. The molecular basis of the majority of the congenital disorders of glycosylation type I subtypes, localized in the cytosol and endoplasmic reticulum, has been solved. However, elucidation of causative genes for defective Golgi glycosylation (congenital disorders of glycosylation type II) remains challenging because of a lack of sufficiently specific diagnostic serum methods. In a single patient with intellectual disability, whole-exome sequencing revealed MAN1B1 as congenital disorder of glycosylation type II candidate gene. A novel mass spectrometry method was applied for high-resolution glycoprofiling of intact plasma transferrin. A highly characteristic glycosylation signature was observed with hybrid type N-glycans, in agreement with deficient mannosidase activity. The speed and robustness of the method allowed subsequent screening in a cohort of 100 patients with congenital disorder of glycosylation type II, which revealed the characteristic glycosylation profile of MAN1B1-congenital disorder of glycosylation in 11 additional patients. Abnormal hybrid type N-glycans were also observed in the glycoprofiles of total serum proteins, of enriched immunoglobulins and of alpha1-antitrypsin in variable amounts. Sanger sequencing revealed MAN1B1 mutations in all patients, including severe truncating mutations and amino acid substitutions in the alpha-mannosidase catalytic site. Clinically, this group of patients was characterized by intellectual disability and delayed motor and speech development. In addition, variable dysmorphic features were noted, with truncal obesity and macrocephaly in approximately 65% of patients. In summary, MAN1B1 deficiency appeared to be a frequent cause in our cohort of patients with unsolved congenital disorder of glycosylation type II. Our method for analysis o

Published
2014

8. Diagnostic serum glycosylation profile in patients with intellectual disability as a result of MAN1B1 deficiency

Author

Scherpenzeel, M. van, Timal-Stevenson, S., Rymen, D., Hoischen, A., Wuhrer, M., Hipgrave-Ederveen, A., Grunewald, S., Peanne, R., Saada, A., Edvardson, S., Gronborg, S., Ruijter, G., Kattentidt-Mouravieva, A., Brum, J.M., Freckmann, M.L., Tomkins, S., Jalan, A., Prochazkova, D., Ondruskova, N., Hansikova, H., Willemsen, M.A., Hensbergen, P.J., Matthijs, G., Wevers, R.A., Veltman, J.A., Morava, E., Lefeber, D.J., Scherpenzeel, M. van, Timal-Stevenson, S., Rymen, D., Hoischen, A., Wuhrer, M., Hipgrave-Ederveen, A., Grunewald, S., Peanne, R., Saada, A., Edvardson, S., Gronborg, S., Ruijter, G., Kattentidt-Mouravieva, A., Brum, J.M., Freckmann, M.L., Tomkins, S., Jalan, A., Prochazkova, D., Ondruskova, N., Hansikova, H., Willemsen, M.A., Hensbergen, P.J., Matthijs, G., Wevers, R.A., Veltman, J.A., Morava, E., and Lefeber, D.J.

Abstract

Contains fulltext : 127752.pdf (publisher's version ) (Closed access), Congenital disorders of glycosylation comprise a group of genetic defects with a high frequency of intellectual disability, caused by deficient glycosylation of proteins and lipids. The molecular basis of the majority of the congenital disorders of glycosylation type I subtypes, localized in the cytosol and endoplasmic reticulum, has been solved. However, elucidation of causative genes for defective Golgi glycosylation (congenital disorders of glycosylation type II) remains challenging because of a lack of sufficiently specific diagnostic serum methods. In a single patient with intellectual disability, whole-exome sequencing revealed MAN1B1 as congenital disorder of glycosylation type II candidate gene. A novel mass spectrometry method was applied for high-resolution glycoprofiling of intact plasma transferrin. A highly characteristic glycosylation signature was observed with hybrid type N-glycans, in agreement with deficient mannosidase activity. The speed and robustness of the method allowed subsequent screening in a cohort of 100 patients with congenital disorder of glycosylation type II, which revealed the characteristic glycosylation profile of MAN1B1-congenital disorder of glycosylation in 11 additional patients. Abnormal hybrid type N-glycans were also observed in the glycoprofiles of total serum proteins, of enriched immunoglobulins and of alpha1-antitrypsin in variable amounts. Sanger sequencing revealed MAN1B1 mutations in all patients, including severe truncating mutations and amino acid substitutions in the alpha-mannosidase catalytic site. Clinically, this group of patients was characterized by intellectual disability and delayed motor and speech development. In addition, variable dysmorphic features were noted, with truncal obesity and macrocephaly in approximately 65% of patients. In summary, MAN1B1 deficiency appeared to be a frequent cause in our cohort of patients with unsolved congenital disorder of glycosylation type II. Our method for analysis o

Published
2014

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