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    ACADM acyl-CoA dehydrogenase, C-4 to C-12 straight chain [ Homo sapiens ]

    Gene ID: 34, updated on 19-May-2012

    Summary

    Official Symbol
    ACADMprovided by HGNC
    Official Full Name
    acyl-CoA dehydrogenase, C-4 to C-12 straight chainprovided by HGNC
    Primary source
    HGNC:89
    Locus tag
    RP4-682C21.1
    See related
    Ensembl:ENSG00000117054; HPRD:08447; MIM:607008; Vega:OTTHUMG00000009784
    Gene type
    protein coding
    RefSeq status
    REVIEWED
    Organism
    Homo sapiens
    Lineage
    Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi; Mammalia; Eutheria; Euarchontoglires; Primates; Haplorrhini; Catarrhini; Hominidae; Homo
    Also known as
    MCAD; ACAD1; MCADH; FLJ18227; FLJ93013; FLJ99884
    Summary
    This gene encodes the medium-chain specific (C4 to C12 straight chain) acyl-Coenzyme A dehydrogenase. The homotetramer enzyme catalyzes the initial step of the mitochondrial fatty acid beta-oxidation pathway. Defects in this gene cause medium-chain acyl-CoA dehydrogenase deficiency, a disease characterized by hepatic dysfunction, fasting hypoglycemia, and encephalopathy, which can result in infantile death. Alternatively spliced transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Jul 2008]

    Genomic context

    Location :
    1p31
    Sequence :
    Chromosome: 1; NC_000001.10 (76190043..76229355)
    See ACADM in Epigenomics, MapViewer

    Chromosome 1 - NC_000001.10Genomic Context describing neighboring genes Neighboring gene solute carrier family 44, member 5 Neighboring gene ribosomal protein L29 pseudogene 5 Neighboring gene diphosphoinositol pentakisphosphate kinase 2 pseudogene Neighboring gene dihydrolipoamide S-succinyltransferase pseudogene 1 Neighboring gene small nucleolar RNA, C/D box 45C Neighboring gene small nucleolar RNA, C/D box 45A Neighboring gene Rab geranylgeranyltransferase, beta subunit

    Genomic regions, transcripts, and products

    Bibliography

    GeneRIFs: Gene References Into Functions What's a GeneRIF?

    Phenotypes

    A genome-wide perspective of genetic variation in human metabolism.

    Acyl-CoA dehydrogenase, medium chain, deficiency of

    Summary from GeneReviews: Go to GeneReviews

    Disease Characteristics
    Medium-chain acyl-coenzyme A dehydrogenase (MCAD) is one of the enzymes involved in mitochondrial fatty acid -oxidation, which fuels hepatic ketogenesis, a major source of energy once hepatic glycogen stores become depleted during prolonged fasting and periods of higher energy demands. In a typical clinical scenario, a previously healthy child with MCAD deficiency presents with hypoketotic hypoglycemia, vomiting, and lethargy triggered by a common illness. Seizures may occur. Hepatomegaly and liver disease are often present during an acute episode, which can quickly progress to coma and death. Children are normal at birth and if not identified through newborn screening typically present between ages three and 24 months; later presentation, even into adulthood, is possible. The prognosis is excellent once the diagnosis is established and frequent feedings are instituted to avoid any prolonged period of fasting. Diagnosis/testing. Diagnosis requires the integrated interpretation of multiple analyses, including consideration of the clinical status of the affected individual (i.e., acutely symptomatic vs asymptomatic) at the time of sample collection. Initial testing should include the following analyses and their proper interpretation: Plasma acylcarnitines . Urine organic acids. Urine acylglycines . The biochemical diagnosis of MCAD deficiency can be confirmed by: Determination of fatty acid -oxidation in fibroblasts; Measurement of MCAD enzyme activity in fibroblasts or other tissues; and/or . Molecular genetic testing of ACADM. The latter two tests can be used for prenatal diagnosis. Based on newborn screening results, approximately 50% of individuals are homozygous for the common mutation Lys304Glu, and approximately 40% are heterozygous for Lys304Glu and one of more than 90 rarer alleles. Molecular genetic testing is available on a clinical basis. Management. Treatment of manifestations: Most important is giving simple carbohydrates by mouth (e.g., glucose tablets, or sweetened, non-diet beverages) or IV if needed to reverse catabolism and sustain anabolism. Prevention of primary manifestations: The mainstay is avoidance of fasting: infants require frequent feedings; toddlers could be placed on a relatively low-fat diet (e.g., <30% of total energy from fat) and could receive 2 g/kg of uncooked cornstarch at bedtime to ensure sufficient glucose overnight. Prevention of secondary complications: Weight control measures including proper nutrition and exercise. Agents/circumstances to avoid: Hypoglycemia (e.g., from excessive fasting); infant formulas that contain medium-chain triglycerides as the primary source of fat. Evaluation of relatives at risk: Evaluate plasma acylcarnitine concentration and urine acylglycine in sibs and parents to permit early diagnosis and treatment of previously asymptomatic at-risk family members.
    Diagnosis Testing
    Diagnosis requires the integrated interpretation of multiple analyses, including consideration of the clinical status of the affected individual (i.e., acutely symptomatic vs asymptomatic) at the time of sample collection. Initial testing should include the following analyses and their proper interpretation: Plasma acylcarnitines . Urine organic acids. Urine acylglycines . The biochemical diagnosis of MCAD deficiency can be confirmed by: Determination of fatty acid -oxidation in fibroblasts; Measurement of MCAD enzyme activity in fibroblasts or other tissues; and/or . Molecular genetic testing of ACADM. The latter two tests can be used for prenatal diagnosis. Based on newborn screening results, approximately 50% of individuals are homozygous for the common mutation Lys304Glu, and approximately 40% are heterozygous for Lys304Glu and one of more than 90 rarer alleles. Molecular genetic testing is available on a clinical basis. Management. Treatment of manifestations: Most important is giving simple carbohydrates by mouth (e.g., glucose tablets, or sweetened, non-diet beverages) or IV if needed to reverse catabolism and sustain anabolism. Prevention of primary manifestations: The mainstay is avoidance of fasting: infants require frequent feedings; toddlers could be placed on a relatively low-fat diet (e.g., <30% of total energy from fat) and could receive 2 g/kg of uncooked cornstarch at bedtime to ensure sufficient glucose overnight. Prevention of secondary complications: Weight control measures including proper nutrition and exercise. Agents/circumstances to avoid: Hypoglycemia (e.g., from excessive fasting); infant formulas that contain medium-chain triglycerides as the primary source of fat. Evaluation of relatives at risk: Evaluate plasma acylcarnitine concentration and urine acylglycine in sibs and parents to permit early diagnosis and treatment of previously asymptomatic at-risk family members.
    Genetic Counseling
    Disease characteristics. Medium-chain acyl-coenzyme A dehydrogenase (MCAD) is one of the enzymes involved in mitochondrial fatty acid -oxidation, which fuels hepatic ketogenesis, a major source of energy once hepatic glycogen stores become depleted during prolonged fasting and periods of higher energy demands. In a typical clinical scenario, a previously healthy child with MCAD deficiency presents with hypoketotic hypoglycemia, vomiting, and lethargy triggered by a common illness. Seizures may occur. Hepatomegaly and liver disease are often present during an acute episode, which can quickly progress to coma and death. Children are normal at birth and if not identified through newborn screening typically present between ages three and 24 months; later presentation, even into adulthood, is possible. The prognosis is excellent once the diagnosis is established and frequent feedings are instituted to avoid any prolonged period of fasting. Diagnosis/testing. Diagnosis requires the integrated interpretation of multiple analyses, including consideration of the clinical status of the affected individual (i.e., acutely symptomatic vs asymptomatic) at the time of sample collection. Initial testing should include the following analyses and their proper interpretation: Plasma acylcarnitines . Urine organic acids. Urine acylglycines . The biochemical diagnosis of MCAD deficiency can be confirmed by: Determination of fatty acid -oxidation in fibroblasts; Measurement of MCAD enzyme activity in fibroblasts or other tissues; and/or . Molecular genetic testing of ACADM. The latter two tests can be used for prenatal diagnosis. Based on newborn screening results, approximately 50% of individuals are homozygous for the common mutation Lys304Glu, and approximately 40% are heterozygous for Lys304Glu and one of more than 90 rarer alleles. Molecular genetic testing is available on a clinical basis. Management. Treatment of manifestations: Most important is giving simple carbohydrates by mouth (e.g., glucose tablets, or sweetened, non-diet beverages) or IV if needed to reverse catabolism and sustain anabolism. Prevention of primary manifestations: The mainstay is avoidance of fasting: infants require frequent feedings; toddlers could be placed on a relatively low-fat diet (e.g., <30% of total energy from fat) and could receive 2 g/kg of uncooked cornstarch at bedtime to ensure sufficient glucose overnight. Prevention of secondary complications: Weight control measures including proper nutrition and exercise. Agents/circumstances to avoid: Hypoglycemia (e.g., from excessive fasting); infant formulas that contain medium-chain triglycerides as the primary source of fat. Evaluation of relatives at risk: Evaluate plasma acylcarnitine concentration and urine acylglycine in sibs and parents to permit early diagnosis and treatment of previously asymptomatic at-risk family members.
    References

    Interactions

    Products Interactant Other Gene Complex Source Pubs Description
    P11310 P11310 ACADM    HPRD  PubMed  
    P11310 Q6EEV6 SUMO4    HPRD  PubMed  
    BioGRID:106552 BioGRID:107252 CALM1    BioGRID  PubMed Reconstituted Complex 
    BioGRID:106552 BioGRID:132223 SUMO4    BioGRID  PubMed Affinity Capture-MS 
    BioGRID:106552 BioGRID:113164 UBC    BioGRID  PubMed Affinity Capture-MS 
    BioGRID:106552 BioGRID:116077 USP20    BioGRID  PubMed Affinity Capture-MS 
    BioGRID:106552 BioGRID:131884 USP50    BioGRID  PubMed Affinity Capture-MS 

    General gene information

    Markers

    Homology

    Pathways from BioSystems

    Gene Ontology Provided by GOA

    Function Evidence Code Pubs
    acryloyl-CoA reductase activity IEA
    Inferred from Electronic Annotation
    more info
     
    acyl-CoA dehydrogenase activity IDA
    Inferred from Direct Assay
    more info
    PubMed 
    acyl-CoA dehydrogenase activity IEA
    Inferred from Electronic Annotation
    more info
     
    acyl-CoA dehydrogenase activity IMP
    Inferred from Mutant Phenotype
    more info
    PubMed 
    acyl-CoA dehydrogenase activity TAS
    Traceable Author Statement
    more info
     
    flavin adenine dinucleotide binding IEA
    Inferred from Electronic Annotation
    more info
     
    identical protein binding IDA
    Inferred from Direct Assay
    more info
    PubMed 
    medium-chain-acyl-CoA dehydrogenase activity IDA
    Inferred from Direct Assay
    more info
    PubMed 
    Component Evidence Code Pubs
    axon IDA
    Inferred from Direct Assay
    more info
     
    mitochondrial matrix TAS
    Traceable Author Statement
    more info
     
    mitochondrion IDA
    Inferred from Direct Assay
    more info
    PubMed 

    General protein information

    Preferred Names
    medium-chain specific acyl-CoA dehydrogenase, mitochondrial
    Names
    medium-chain specific acyl-CoA dehydrogenase, mitochondrial
    acyl-Coenzyme A dehydrogenase, C-4 to C-12 straight chain
    NP_000007.1
    NP_001120800.1

    NCBI Reference Sequences (RefSeq)

    RefSeqs maintained independently of Annotated Genomes

    These reference sequences exist independently of genome builds. Explain

    These reference sequences are curated independently of the genome annotation cycle, so their versions may not match the RefSeq versions in the current genome build. Identify version mismatches by comparing the version of the RefSeq in this section to the one reported in Genomic regions, transcripts, and products above.

    Genomic

    1. NG_007045.1 RefSeqGene

      Range
      5001..44313
      Download
      GenBank, FASTA, Sequence Viewer (Graphics)

    mRNA and Protein(s)

    1. NM_000016.4NP_000007.1  medium-chain specific acyl-CoA dehydrogenase, mitochondrial isoform a precursor

      Status: REVIEWED

      Description
      Transcript Variant: This variant (1) encodes isoform a.
      Source sequence(s)
      BC005377, BI789086, DB453314, DB537134
      Consensus CDS
      CCDS668.1
      UniProtKB/Swiss-Prot
      P11310
      Related
      ENSP00000359878, OTTHUMP00000011345, ENST00000370841, OTTHUMT00000026967
      Conserved Domains (2) summary
      COG1960
      Location:39420
      Blast Score: 828
      CaiA; Acyl-CoA dehydrogenases [Lipid metabolism]
      cd01157
      Location:41418
      Blast Score: 2012
      MCAD; Medium chain acyl-CoA dehydrogenase
    2. NM_001127328.1NP_001120800.1  medium-chain specific acyl-CoA dehydrogenase, mitochondrial isoform b precursor

      Status: REVIEWED

      Description
      Transcript Variant: This variant (3) uses an alternate in-frame splice site in the 5' coding region, compared to variant 1, resulting in an isoform (b) that is longer than isoform a.
      Source sequence(s)
      AF251043, BC005377, BI789086, DB453314, DB537134
      Consensus CDS
      CCDS44165.1
      UniProtKB/Swiss-Prot
      P11310
      Related
      ENSP00000409612, OTTHUMP00000232508, ENST00000420607, OTTHUMT00000388952
      Conserved Domains (2) summary
      COG1960
      Location:43424
      Blast Score: 833
      CaiA; Acyl-CoA dehydrogenases [Lipid metabolism]
      cd01157
      Location:45422
      Blast Score: 2016
      MCAD; Medium chain acyl-CoA dehydrogenase

    RefSeqs of Annotated Genomes: Build 37.3

    The following sections contain reference sequences that belong to a specific genome build. Explain

    Reference GRCh37.p5 Primary Assembly

    Genomic

    1. NC_000001.10 Reference GRCh37.p5 Primary Assembly

      Range
      76190043..76229355
      Download
      GenBank, FASTA, Sequence Viewer (Graphics)

    Alternate HuRef

    Genomic

    1. AC_000133.1 Alternate HuRef

      Range
      74319974..74359196
      Download
      GenBank, FASTA, Sequence Viewer (Graphics)

    Suppressed Reference Sequence(s)

    The following Reference Sequences have been suppressed. Explain

    1. NR_022013.1: Suppressed sequence

      Description
      NR_022013.1: This RefSeq was temporarily suppressed because currently there is not sufficient data to support this transcript.

      Supplemental Content

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