Spectrum of mutations in Glutaryl-CoA dehydrogenase gene in glutaric aciduria type I – Study from South India
Abstract Background Glutaric aciduria type I is an autosomal recessive organic acid disorder. The primary defect is the deficiency of Glutaryl-CoA dehydrogenase (EC number 1.3.99.7) enzyme that is involved in the catabolic pathways of the amino acids l -lysine, l -hydroxylysine, and l -tryptophan. I...
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description | Abstract Background Glutaric aciduria type I is an autosomal recessive organic acid disorder. The primary defect is the deficiency of Glutaryl-CoA dehydrogenase (EC number 1.3.99.7) enzyme that is involved in the catabolic pathways of the amino acids l -lysine, l -hydroxylysine, and l -tryptophan. It is a treatable neuro-metabolic disorder. Early diagnosis and treatment helps in preventing brain damage. Methods The Glutaryl-CoA dehydrogenase gene ( GCDH ) gene was sequenced to identify disease causing mutations by direct sequencing of all the exons in twelve patients who were biochemically confirmed with GA I. Results We identified eleven mutations of which nine are homozygous mutations, one heterozygous and two synonymous mutations. Among the eleven mutations, four mutations p.Q162R, p.P286S, p.W225X in two families and p.V410M are novel. A milder clinical presentation is observed in those families who are either heterozygous or with a benign synonymous SNP. Multiple sequence alignment (MSA) of GCDH with its homologues revealed that the observed novel mutations are not tolerated by protein structure and function. Conclusions The present study indicates genetic heterogeneity in GCDH gene mutations among South Indian population. Genetic analysis is useful in prenatal diagnosis and prevention. Mutation analysis is a useful tool in the absence of non-availability of enzyme assay in GA I. |
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The primary defect is the deficiency of Glutaryl-CoA dehydrogenase (EC number 1.3.99.7) enzyme that is involved in the catabolic pathways of the amino acids l -lysine, l -hydroxylysine, and l -tryptophan. It is a treatable neuro-metabolic disorder. Early diagnosis and treatment helps in preventing brain damage. Methods The Glutaryl-CoA dehydrogenase gene ( GCDH ) gene was sequenced to identify disease causing mutations by direct sequencing of all the exons in twelve patients who were biochemically confirmed with GA I. Results We identified eleven mutations of which nine are homozygous mutations, one heterozygous and two synonymous mutations. Among the eleven mutations, four mutations p.Q162R, p.P286S, p.W225X in two families and p.V410M are novel. A milder clinical presentation is observed in those families who are either heterozygous or with a benign synonymous SNP. Multiple sequence alignment (MSA) of GCDH with its homologues revealed that the observed novel mutations are not tolerated by protein structure and function. Conclusions The present study indicates genetic heterogeneity in GCDH gene mutations among South Indian population. Genetic analysis is useful in prenatal diagnosis and prevention. Mutation analysis is a useful tool in the absence of non-availability of enzyme assay in GA I.</description><identifier>ISSN: 0387-7604</identifier><identifier>EISSN: 1872-7131</identifier><identifier>DOI: 10.1016/j.braindev.2015.05.013</identifier><identifier>PMID: 26071121</identifier><language>eng</language><publisher>Netherlands: Elsevier B.V</publisher><subject>Amino Acid Metabolism, Inborn Errors - diagnosis ; Amino Acid Metabolism, Inborn Errors - genetics ; Asian Continental Ancestry Group - genetics ; Brain Diseases, Metabolic - diagnosis ; Brain Diseases, Metabolic - genetics ; DNA Mutational Analysis ; Exons ; Glutaric aciduria ; Glutaryl-CoA dehydrogenase ; Glutaryl-CoA Dehydrogenase - chemistry ; Glutaryl-CoA Dehydrogenase - deficiency ; Glutaryl-CoA Dehydrogenase - genetics ; Humans ; India ; Metabolic disease ; Models, Molecular ; Movement disorders ; Mutation ; Neurology ; Novel mutation ; Phenotype ; Protein Conformation</subject><ispartof>Brain & development (Tokyo. 1979), 2016-01, Vol.38 (1), p.54-60</ispartof><rights>The Japanese Society of Child Neurology</rights><rights>2015 The Japanese Society of Child Neurology</rights><rights>Copyright © 2015 The Japanese Society of Child Neurology. Published by Elsevier B.V. All rights reserved.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c447t-b11282db9fad8f808ee8cf0d368318cad5059fadb4122bf5bed49da1ff8d2d133</citedby><cites>FETCH-LOGICAL-c447t-b11282db9fad8f808ee8cf0d368318cad5059fadb4122bf5bed49da1ff8d2d133</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://dx.doi.org/10.1016/j.braindev.2015.05.013$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,780,784,3550,27924,27925,45995</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/26071121$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Radha Rama Devi, A</creatorcontrib><creatorcontrib>Ramesh, Vakkalagadda A</creatorcontrib><creatorcontrib>Nagarajaram, H.A</creatorcontrib><creatorcontrib>Satish, S.P.S</creatorcontrib><creatorcontrib>Jayanthi, U</creatorcontrib><creatorcontrib>Lingappa, Lokesh</creatorcontrib><title>Spectrum of mutations in Glutaryl-CoA dehydrogenase gene in glutaric aciduria type I – Study from South India</title><title>Brain & development (Tokyo. 1979)</title><addtitle>Brain Dev</addtitle><description>Abstract Background Glutaric aciduria type I is an autosomal recessive organic acid disorder. The primary defect is the deficiency of Glutaryl-CoA dehydrogenase (EC number 1.3.99.7) enzyme that is involved in the catabolic pathways of the amino acids l -lysine, l -hydroxylysine, and l -tryptophan. It is a treatable neuro-metabolic disorder. Early diagnosis and treatment helps in preventing brain damage. Methods The Glutaryl-CoA dehydrogenase gene ( GCDH ) gene was sequenced to identify disease causing mutations by direct sequencing of all the exons in twelve patients who were biochemically confirmed with GA I. Results We identified eleven mutations of which nine are homozygous mutations, one heterozygous and two synonymous mutations. Among the eleven mutations, four mutations p.Q162R, p.P286S, p.W225X in two families and p.V410M are novel. A milder clinical presentation is observed in those families who are either heterozygous or with a benign synonymous SNP. Multiple sequence alignment (MSA) of GCDH with its homologues revealed that the observed novel mutations are not tolerated by protein structure and function. Conclusions The present study indicates genetic heterogeneity in GCDH gene mutations among South Indian population. Genetic analysis is useful in prenatal diagnosis and prevention. Mutation analysis is a useful tool in the absence of non-availability of enzyme assay in GA I.</description><subject>Amino Acid Metabolism, Inborn Errors - diagnosis</subject><subject>Amino Acid Metabolism, Inborn Errors - genetics</subject><subject>Asian Continental Ancestry Group - genetics</subject><subject>Brain Diseases, Metabolic - diagnosis</subject><subject>Brain Diseases, Metabolic - genetics</subject><subject>DNA Mutational Analysis</subject><subject>Exons</subject><subject>Glutaric aciduria</subject><subject>Glutaryl-CoA dehydrogenase</subject><subject>Glutaryl-CoA Dehydrogenase - chemistry</subject><subject>Glutaryl-CoA Dehydrogenase - deficiency</subject><subject>Glutaryl-CoA Dehydrogenase - genetics</subject><subject>Humans</subject><subject>India</subject><subject>Metabolic disease</subject><subject>Models, Molecular</subject><subject>Movement disorders</subject><subject>Mutation</subject><subject>Neurology</subject><subject>Novel mutation</subject><subject>Phenotype</subject><subject>Protein Conformation</subject><issn>0387-7604</issn><issn>1872-7131</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2016</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNqFkc9u1DAQxi0EosvCK1Q-csnisfPHe0FUKygrVeKwcLYce9x6SeLFTirlxjvwhjwJTrflwAVppPHIn-fz_IaQS2AbYFC_O27aqP1g8X7DGVQblgPEM7IC2fCiAQHPyYoJ2RRNzcoL8iqlI2MMOLCX5ILXrIF8XpFwOKEZ49TT4Gg_jXr0YUjUD_S6y1Wcu2IXrqjFu9nGcIuDTkhzwkVy-yDxhmrj7RS9puN8Qrqnv3_-oodxsjN1MfT0EKbxju4H6_Vr8sLpLuGbx7wm3z59_Lr7XNx8ud7vrm4KU5bNWLT5d5Lbduu0lU4yiSiNY1bUUoA02lasWu7aEjhvXdWiLbdWg3PScgtCrMnbc99TDD8mTKPqfTLYdXrAMCUFTcVFJbYZ2prUZ6mJIaWITp2i7_PoCphaYKujeoKtFtiK5XjwuHz0mNoe7d9nT3Sz4MNZgHnSe49RJeNxMGh9zNSVDf7_Hu__aWE6P3iju-84YzqGKQ6ZowKVuGLqsKx82ThUedms4eIP_KGq4w</recordid><startdate>20160101</startdate><enddate>20160101</enddate><creator>Radha Rama Devi, A</creator><creator>Ramesh, Vakkalagadda A</creator><creator>Nagarajaram, H.A</creator><creator>Satish, S.P.S</creator><creator>Jayanthi, U</creator><creator>Lingappa, Lokesh</creator><general>Elsevier B.V</general><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7X8</scope></search><sort><creationdate>20160101</creationdate><title>Spectrum of mutations in Glutaryl-CoA dehydrogenase gene in glutaric aciduria type I – Study from South India</title><author>Radha Rama Devi, A ; Ramesh, Vakkalagadda A ; Nagarajaram, H.A ; Satish, S.P.S ; Jayanthi, U ; Lingappa, Lokesh</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c447t-b11282db9fad8f808ee8cf0d368318cad5059fadb4122bf5bed49da1ff8d2d133</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2016</creationdate><topic>Amino Acid Metabolism, Inborn Errors - diagnosis</topic><topic>Amino Acid Metabolism, Inborn Errors - genetics</topic><topic>Asian Continental Ancestry Group - genetics</topic><topic>Brain Diseases, Metabolic - diagnosis</topic><topic>Brain Diseases, Metabolic - genetics</topic><topic>DNA Mutational Analysis</topic><topic>Exons</topic><topic>Glutaric aciduria</topic><topic>Glutaryl-CoA dehydrogenase</topic><topic>Glutaryl-CoA Dehydrogenase - chemistry</topic><topic>Glutaryl-CoA Dehydrogenase - deficiency</topic><topic>Glutaryl-CoA Dehydrogenase - genetics</topic><topic>Humans</topic><topic>India</topic><topic>Metabolic disease</topic><topic>Models, Molecular</topic><topic>Movement disorders</topic><topic>Mutation</topic><topic>Neurology</topic><topic>Novel mutation</topic><topic>Phenotype</topic><topic>Protein Conformation</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Radha Rama Devi, A</creatorcontrib><creatorcontrib>Ramesh, Vakkalagadda A</creatorcontrib><creatorcontrib>Nagarajaram, H.A</creatorcontrib><creatorcontrib>Satish, S.P.S</creatorcontrib><creatorcontrib>Jayanthi, U</creatorcontrib><creatorcontrib>Lingappa, Lokesh</creatorcontrib><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>MEDLINE - Academic</collection><jtitle>Brain & development (Tokyo. 1979)</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Radha Rama Devi, A</au><au>Ramesh, Vakkalagadda A</au><au>Nagarajaram, H.A</au><au>Satish, S.P.S</au><au>Jayanthi, U</au><au>Lingappa, Lokesh</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Spectrum of mutations in Glutaryl-CoA dehydrogenase gene in glutaric aciduria type I – Study from South India</atitle><jtitle>Brain & development (Tokyo. 1979)</jtitle><addtitle>Brain Dev</addtitle><date>2016-01-01</date><risdate>2016</risdate><volume>38</volume><issue>1</issue><spage>54</spage><epage>60</epage><pages>54-60</pages><issn>0387-7604</issn><eissn>1872-7131</eissn><abstract>Abstract Background Glutaric aciduria type I is an autosomal recessive organic acid disorder. The primary defect is the deficiency of Glutaryl-CoA dehydrogenase (EC number 1.3.99.7) enzyme that is involved in the catabolic pathways of the amino acids l -lysine, l -hydroxylysine, and l -tryptophan. It is a treatable neuro-metabolic disorder. Early diagnosis and treatment helps in preventing brain damage. Methods The Glutaryl-CoA dehydrogenase gene ( GCDH ) gene was sequenced to identify disease causing mutations by direct sequencing of all the exons in twelve patients who were biochemically confirmed with GA I. Results We identified eleven mutations of which nine are homozygous mutations, one heterozygous and two synonymous mutations. Among the eleven mutations, four mutations p.Q162R, p.P286S, p.W225X in two families and p.V410M are novel. A milder clinical presentation is observed in those families who are either heterozygous or with a benign synonymous SNP. Multiple sequence alignment (MSA) of GCDH with its homologues revealed that the observed novel mutations are not tolerated by protein structure and function. Conclusions The present study indicates genetic heterogeneity in GCDH gene mutations among South Indian population. Genetic analysis is useful in prenatal diagnosis and prevention. Mutation analysis is a useful tool in the absence of non-availability of enzyme assay in GA I.</abstract><cop>Netherlands</cop><pub>Elsevier B.V</pub><pmid>26071121</pmid><doi>10.1016/j.braindev.2015.05.013</doi><tpages>7</tpages></addata></record> |
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subjects | Amino Acid Metabolism, Inborn Errors - diagnosis Amino Acid Metabolism, Inborn Errors - genetics Asian Continental Ancestry Group - genetics Brain Diseases, Metabolic - diagnosis Brain Diseases, Metabolic - genetics DNA Mutational Analysis Exons Glutaric aciduria Glutaryl-CoA dehydrogenase Glutaryl-CoA Dehydrogenase - chemistry Glutaryl-CoA Dehydrogenase - deficiency Glutaryl-CoA Dehydrogenase - genetics Humans India Metabolic disease Models, Molecular Movement disorders Mutation Neurology Novel mutation Phenotype Protein Conformation |
title | Spectrum of mutations in Glutaryl-CoA dehydrogenase gene in glutaric aciduria type I – Study from South India |
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