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Table 2 Overview of 116 treatableIDs and diagnostic tests

From: Treatable inherited metabolic disorders causing intellectual disability: 2021 review and digital app

Group of disorder

Name of disorder

Gene(s)

Orphanet#

OMIM gene/locus#

HPO#

Diagnostic test

Congenital disorders of glycosylation

SLC35A2-CDG*

SLC35A2 (X-linked)

356,961

314,375

7355

Serum transferrin/N-glycan profiling

Congenital disorders of glycosylation

SLC35C1-CDG*

SLC35C1-CDG (AR)

99,843

605,881

55,343

Serum transferrin/N-glycan profiling

Congenital disorders of glycosylation

PMM2-CDG*

PMM2 (AR)

79,318

601,785

5373

Serum transferrin/N-glycan profiling

Congenital disorders of glycosylation

PIGA-CDG*

PIGA (X-linked)

–

311,770

–

Molecular testing

Congenital disorders of glycosylation

PIGM-CDG*

PIGM (AR)

83,639

610,273

93,183

Molecular testing

Congenital disorders of glycosylation

PIGO-CDG*

PIGO (AR)

247,262

614,730

84,720

Molecular testing

Disorders of amino acid metabolism

Arginase deficiency (synonym: argininemia)

ARG1 (AR)

90

608,313

383

Plasma amino acids

Plasma ammonia

Disorders of amino acid metabolism

Argininosuccinate lyase deficiency

ASL (AR)

23

608,310

435

Plasma amino acids

Plasma ammonia

Disorders of amino acid metabolism

Argininosuccinate synthetase deficiency (synonym: citrullinemia type 1)

ASS1 (AR)

247,525

603,470

445

Plasma amino acids

Plasma ammonia

Disorders of amino acid metabolism

Citrin deficiency

SLC25A13 (AR)

247,582

603,859

10,165

Plasma amino acids

Disorders of amino acid metabolism

Methionine synthase deficiency (synonym: homocystinuria-megaloblastic anemia, cblG type)

MTR (AR)

2170

156,570

4548

Plasma total homocysteine

Disorders of amino acid metabolism

Carbamoyl phosphate synthetase 1 deficiency

CPS1 (AR)

147

608,307

1373

Plasma amino acids

Disorders of amino acid metabolism

Mitochondrial sulfur dioxygenase deficiency (synonym: ethylmalonic encephalopathy)

ETHE1 (AR)

51,188

608,451

23,474

Urine organic acids

Plasma acylcarnitines

Molecular testing

Disorders of amino acid metabolism

Glutaryl-CoA dehydrogenase deficiency (synonym: glutaric aciduria type 1)

GCDH (AR)

25

608,801

2639

Plasma acylcarnitines

Urine organic acids

Disorders of amino acid metabolism

Mitochondrial ornithine transporter deficiency (synonym: hyperornithinemia-hyperammonemia-homocitrullinuria syndrome)

SLC25A15 (AR)

415

603,861

10,116

Plasma amino acids

Plasma ammonia

Disorders of amino acid metabolism

Cystathionine beta-synthase deficiency (synonym: classic homocystinuria)

CBS (AR)

394

613,381

875

Urine organic acids

Plasma total homocysteine

Disorders of amino acid metabolism

Isovaleryl-CoA dehydrogenase deficiency (synonym: isovaleric acidemia)

IVD (AR)

33

607,036

3712

Plasma acylcarnitines

Urine organic acids

Disorders of amino acid metabolism

N-acetylglutamate synthase deficiency

NAGS (AR)

927

608,300

162,417

Plasma amino acids

Plasma ammonia

Disorders of amino acid metabolism

Glycine encephalopathy due to aminomethyltransferase (AMT) or glycine decarboxylase (GLDC) deficiency (synonym: nonketotic hyperglycinemia)

AMT/GLDC (AR)

407

238,310 (AMT), 238,300 (GLDC)

275 (AMT), 2731 (GLDC)

Plasma amino acids

CSF amino acids

Disorders of amino acid metabolism

Branched-chain ketoacid dehydrogenase E1 alpha (BCKDHA)/beta (BCKDHB)/E2 (DBT) deficiency (synonym: maple syrup urine disease type 1a (BCKDHA)/2 (DBT); Dihydrolipoyl transacylase deficiency (DBT))

BCKDHA/BCKDHB/ DBT (AR)

268,145, 268,162, 268,184

608,348 (BCKDHA), 248,611 (BCKDHB), 248,610 (DBT)

593 (BCKDHA), 594 (BCKDHB), 1629 (DBT)

Plasma amino acids

Disorders of amino acid metabolism

Methylmalonic aciduria due to methylmalonyl-CoA mutase deficiency

MMUT (AR)

289,916, 79,312

609,058

4594

Plasma acylcarnitines

Urine organic acids

Blood lactate

Plasma ammonia

Disorders of amino acid metabolism

Ornithine transcarbamylase deficiency

OTC (X-linked)

664

300,461

5009

Plasma amino acids

Urine organic acids

Disorders of amino acid metabolism

Phenylalanine hydroxylase deficiency (synonym: phenylketonuria)

PAH (AR)

79,254

612,349

5053

Plasma amino acids

Disorders of amino acid metabolism

3-phosphoglycerate dehydrogenase deficiency

PHGDH (AR)

79,351

606,879

26,227

Plasma amino acids

CSF amino acids

Disorders of amino acid metabolism

Phosphoserine aminotransferase deficiency

PSAT1 (AR)

284,417

610,936

29,968

Plasma amino acids

CSF amino acids

Disorders of amino acid metabolism

Propionic acidemia due to propionyl-CoA carboxylase subunit alpha (PCCA)/beta (PCCB) deficiency

PCCA/PCCB (AR)

35

232,000 (PCCA), 232,050 (PCCB)

5095 (PCAA), 5096 (PCCB)

Plasma acylcarnitines

Urine organic acids

Blood lactate

Plasma ammonia

Disorders of amino acid metabolism

Phosphoserine phosphatase deficiency

PSPH (AR)

79,350

172,480

5723

Plasma amino acids

CSF amino acids

Disorders of amino acid metabolism

Tyrosine aminotransferase deficiency (synonyms: tyrosinemia type 2; Richner-Hanhart syndrome)

TAT (AR)

28,378

613,018

6898

Plasma amino acids

Urine organic acids

Disorders of amino acid metabolism

Branched-chain ketoacid dehydrogenase kinase deficiency*

BCKDK (AR)

308,410

614,901

10,295

Plasma amino acids

Disorders of amino acid metabolism

Carbonic anhydrase VA deficiency

CA5A (AR)

401,948

114,761

763

Plasma amino acids

Plasma ammonia

blood lactate

molecular testing

Disorders of amino acid metabolism

3-hydroxyisobutyryl-CoA hydrolase deficiency (synonym: beta-hydroxyisobutyryl-CoA deacylase deficiency)*

HIBCH (AR)

88,639

250,620

26,275

Urine organic acids

Molecular testing

Disorders of amino acid metabolism

Mitochondrial short-chain enoyl-CoA hydratase 1 deficiency*

ECHS1 (AR)

255,241

616,277

1892

Urine organic acids

Molecular testing

Disorders of amino acid metabolism

S-adenosylhomocysteine hydrolase deficiency*

AHCY (AR)

88,618

613,752

191

Plasma amino acids

Plasma total homocysteine

Disorders of amino acid metabolism

Glutamine synthetase deficiency*

GLUL (AR)

71,278

610,015

2752

Plasma amino acids

CSF amino acids

Disorders of carbohydrate metabolism

GLUT1 deficiency

SLC2A1 (AD)

71,277

138,140

6513

CSF other (CSF:blood glucose ratio)

Disorders of complex molecule degradation

Alpha-mannosidase deficiency

MAN2B1 (AR)

309,282, 309,288

609,458

4125

Urine oligosaccharides**

Disorders of complex molecule degradation

Aspartylglucosaminidase deficiency

AGA (AR)

93

613,228

175

Urine oligosaccharides**

Disorders of complex molecule degradation

Iduronate sulfatase deficiency (synonym: Hunter syndrome)

IDS (X-linked)

217,085

300,823

3423

Urine glycosaminoglycans**

Disorders of complex molecule degradation

Alpha-iduronidase deficiency (synonyms: Hurler syndrome [severe]; Scheie syndrome [attenuated])

IDUA (AR)

93,473

252,800

3425

Urine glycosaminoglycans**

Disorders of complex molecule degradation

Arylsulfatase A deficiency

ARSA (AR)

309,256, 309,263, 309,271

607,574

410

Enzymatic testing (Arylsulfatase A)

Disorders of complex molecule degradation

Niemann-Pick disease type C1 (NPC1)/C2 (NPC2)

NPC1/NPC2 (AR)

646

607,623 (NPC1), 601,015 (NPC2)

4864 (NPC1), 10,577 (NPC2)

Plasma (oxy-)sterols

Disorders of complex molecule degradation

Beta-glucuronidase deficiency (synonym: Sly syndrome)

GUSB (AR)

584

611,499

2990

Urine glycosaminoglycans**

Disorders of complex molecule degradation

Tripeptidyl-peptidase 1 deficiency (synonym: CLN2 disease)*

TPP1 (AR)

228,349

607,998

1200

Enzymatic testing (Tripeptidyl-peptidase 1)

Disorders of complex molecule degradation

Alpha-fucosidase deficiency*

FUCA1 (AR)

349

230,000

2517

Urine glycosaminoglycans**

Disorders of complex molecule degradation

CLN7 disease*

MFSD8 (AR)

228,366

611,124

256,471

Molecular testing

Disorders of energy substrate metabolism

Arginine:glycine amidinotransferase (AGAT) deficiency

GATM (AR)

35,704

602,360

2628

(Plasma/) urine creatine & guanidinoacetate

Disorders of energy substrate metabolism

Creatine transporter deficiency

SLC6A8 (X-linked)

52,503

300,036

6535

Urine creatine & guanidinoacetate

Disorders of energy substrate metabolism

Guanidinoacetate methyltransferase deficiency

GAMT (AR)

382

601,240

2593

Urine creatine & guanidinoacetate

Disorders of energy substrate metabolism

Pyruvate dehydrogenase E1 alpha (PDHA1)/beta (PDHB)/E2 (DLAT)/E3 (DLD)/E3BP (PDHX) deficiency

PDHA1 (X-linked)/PDHB/DLAT/DLD/PDHX (AR)

79,243 (PDHA1), 255,138 (PDHB), 79,244 (DLAT), 2394 (DLD), 255,182 (PDHX)

300,502 (PDHA1), 179,060 (PDHB), 608,770 (DLAT), 238,331 (DLD), 608,769 (PDHX)

5160 (PDHA1), 5162 (PDHB), 1737 (DLAT), 1738 (DLD), 8050 (PDHX)

CSF other (lactate:pyruvate ratio)

other (blood lactate:pyruvate ratio)

Disorders of energy substrate metabolism

Pyruvate dehydrogenase phosphatase deficiency*

PDP1 (AR)

79,246

605,993

54,704

Plasma amino acids

Urine organic acids

Disorders of fatty acid, carnitine, and ketone body metabolism

Mitochondrial acetoacetyl-CoA thiolase deficiency

ACAT1 (AR)

134

607,809

38

Urine organic acids

Disorders of fatty acid, carnitine, and ketone body metabolism

Electron transfer flavoprotein subunit alpha (ETFA)/subunit beta (ETFB)/dehydrogenase deficiency (ETFDH) (synonym: glutaric acidemia type 2A/2B/2C; multiple acyl-CoA dehydrogenase deficiency type 2A/2B/2C)

ETFA/ETFB/ETFDH (AR)

26,791

608,053 (ETFA), 130,410 (ETFB), 231,675 (ETFDH)

2108 (ETFA), 2109 (ETFB), 2110 (ETFDH)

Plasma acylcarnitines

Urine organic acids

Disorders of fatty acid, carnitine, and ketone body metabolism

3-hydroxy-3-methylglutaryl-CoA lyase deficiency

HMGCL (AR)

20

613,898

3115

Urine organic acids

Disorders of fatty acid, carnitine, and ketone body metabolism

Mitochondrial 3-hydroxy-3-methylglutaryl-CoA synthase deficiency

HMGCS2 (AR)

35,701

600,234

3158

Urine organic acids

Disorders of fatty acid, carnitine, and ketone body metabolism

Epsilon-N-trimethyllysine hydroxylase deficiency*

TMLHE (X-linked)

 

300,777

55,217

Plasma acylcarnitines

Disorders of lipid metabolism

X-linked adrenoleukodystrophy

ABCD1 (X-linked)

139,396, 139,396

300,371

215

Plasma very long chain fatty acids

Disorders of lipid metabolism

Sterol 27-hydroxylase deficiency (synonym: cerebrotendinous xanthomatosis)

CYP27A1 (AR)

909

606,530

1593

Other (plasma cholestanol)

Disorders of lipid metabolism

7-dehydrocholesterol reductase deficiency

DHCR7 (AR)

818

602,858

1717

Plasma (oxy-)sterols

Disorders of mitochondrial cofactor biosynthesis

Coenzyme Q5 methyltransferase deficiency

COQ5 (AR)

 

616,359

84,274

Molecular testing***

Disorders of mitochondrial cofactor biosynthesis

Coenzyme Q8A (ADCK3) deficiency

COQ8A (AR)

139,485

606,980

56,997

Molecular testing

Disorders of nucleobase, nucleotide and nucleic acid metabolism

Isoleucyl-tRNA synthetase 1 deficiency*

IARS1 (AR)

541,423

600,709

3376

Molecular testing

Disorders of nucleobase, nucleotide and nucleic acid metabolism

Leucyl-tRNA synthetase 1 deficiency*

LARS1 (AR)

370,088

151,350

51,520

Molecular testing

Disorders of nucleobase, nucleotide and nucleic acid metabolism

Phenylalanyl-tRNA synthetase subunit beta deficiency*

FARSB (AR)

178,506

609,690

10,056

Molecular testing

Disorders of nucleobase, nucleotide and nucleic acid metabolism

Seryl-tRNA synthetase 1 deficiency*

SARS1 (AR)

88,616

607,529

6301

Molecular testing

Disorders of nucleobase, nucleotide and nucleic acid metabolism

Methionyl-tRNA synthetase 1 deficiency*

MARS1 (AR)

397,735, 401,835, 440,427

156,560

4141

Molecular testing

Disorders of nucleobase, nucleotide and nucleic acid metabolism

Phosphoribosylpyrophosphate synthetase deficiency*

PRPS1 (X-linked)

1187

311,850

5631

Urine purines & pyrimidines

Disorders of nucleobase, nucleotide and nucleic acid metabolism

CAD trifunctional protein deficiency*

CAD (AR)

448,010

114,010

790

Molecular testing

Disorders of peptide and amine metabolism

NRF2 superactivity (synonym: immunodeficiency, developmental delay, and hypohomocysteinemia)*

NFE2L2 (AD)

 

600,492

4780

Plasma total homocysteine

Disorders of trace elements and metals

Hereditary ceruloplasmin deficiency

CP (AR)

48,818

117,700

1356

Copper & ceruloplasmin

Disorders of trace elements and metals

Copper-transporting ATPase subunit alpha deficiency (synonyms: Menkes disease [severe]; occipital horn syndrome [milder])

ATP7A (AR)

565

300,011

538

copper & Ceruloplasmin

Disorders of trace elements and metals

Copper-transporting ATPase subunit beta deficiency (synonym: Wilson disease)

ATP7B (AR)

905

606,882

540

Copper & ceruloplasmin

Disorders of trace elements and metals

SLC39A8 deficiency*

SLC39A8 (AR)

468,699

608,732

64,116

Other (serum zinc, sialotransferrins, manganese, CSF lactate)

Disorders of trace elements and metals

MEDNIK syndrome

AP1S1 (AR)

171,851

609,313

1174

Copper & ceruloplasmin

Molecular testing

Disorders of vitamin and cofactor metabolism

Thiamine transporter 2 deficiency (synonym: biotin-thiamine-responsive basal ganglia disease)

SLC19A3 (AR)

65,284, 199,348

606,152

80,704

Molecular testing

Disorders of vitamin and cofactor metabolism

Biotinidase deficiency

BTD (AR)

79,241

609,019

686

Enzymatic testing (Biotinidase)

Disorders of vitamin and cofactor metabolism

Folate receptor alpha deficiency (synonym: neurodegeneration due to cerebral folate transport deficiency)

FOLR1 (AR)

217,382

136,430

2348

CSF other (methyltetrahydrofolate)

Disorders of vitamin and cofactor metabolism

Methylmalonic aciduria, cblA type

MMAA (AR)

79,310

607,481

166,785

Urine organic acids

Disorders of vitamin and cofactor metabolism

Methylmalonic aciduria, cblB type

MMAB (AR)

79,311

607,568

326,625

Urine organic acids

Disorders of vitamin and cofactor metabolism

Methylmalonic aciduria and homocystinuria, cblC type

MMACHC (AR)

79,282

609,831

25,974

Urine organic acids

Plasma total homocysteine

Disorders of vitamin and cofactor metabolism

Methylmalonic aciduria and homocystinuria, cblD type

MMADHC (AR)

79,283

611,935

27,249

urine organic acids

Plasma total homocysteine

Disorders of vitamin and cofactor metabolism

Homocystinuria, cblDv1 type

MMADHC (AR)

308,380

611,935

27,249

Plasma total homocysteine

Disorders of vitamin and cofactor metabolism

Methylmalonic aciduria, cblDv2 type

MMADHC (AR)

308,442

611,935

27,249

Urine organic acids

Disorders of vitamin and cofactor metabolism

Methionine synthase reductase deficiency (synonym: homocystinuria-megaloblastic anemia, cblE type)

MTRR (AR)

2169

603,568

4552

Plasma total homocysteine

Disorders of vitamin and cofactor metabolism

Methylmalonic aciduria and homocystinuria, cblF type

LMBRD1 (AR)

79,284

612,625

55,788

Urine organic acids

Plasma total homocysteine

Disorders of vitamin and cofactor metabolism

Methylmalonic aciduria and homocystinuria, cblJ type*

ABCD4 (AR)

369,955

603,214

5826

Urine organic acids

Plasma total homocysteine

Disorders of vitamin and cofactor metabolism

Dihydropteridine reductase deficiency

QDPR (AR)

226

612,676

5860

CSF neurotransmitters

Other (biopterin loading test)

Disorders of vitamin and cofactor metabolism

Autosomal recessive GTP cyclohydrolase 1 deficiency

GCH1 (AR)

2102

600,225

2643

CSF neurotransmitters

Disorders of vitamin and cofactor metabolism

Holocarboxylase synthetase deficiency

HLCS (AR)

79,242

609,018

3141

Urine organic acids

Disorders of vitamin and cofactor metabolism

Cyclic pyranopterin monophosphate synthase deficiency (synonym: molybdenum cofactor deficiency type A)

MOCS1 (AR)

308,386

603,707

4337

Urine purines & pyrimidines

Urine sulfites/S-sulfocysteine, (serum uric acid)

Disorders of vitamin and cofactor metabolism

5,10-methylenetetrahydrofolate reductase deficiency

MTHFR (AR)

395

607,093

4524

Plasma amino acids

Plasma total homocysteine

Disorders of vitamin and cofactor metabolism

6-pyruvoyl-tetrahydropterin synthase deficiency

PTS (AR)

13

612,719

5805

CSF neurotransmitters

Other (biopterin loading test)

Disorders of vitamin and cofactor metabolism

Alpha-aminoadipic semialdehyde dehydrogenase deficiency (synonym: pyridoxine-dependent epilepsy)

ALDH7A1 (AR)

3006

107,323

501

Other (plasma P6C, urine alpha-aminoadipic semialdehyde)

Disorders of vitamin and cofactor metabolism

Sepiapterin reductase deficiency

SPR (AR)

70,594

182,125

6697

CSF neurotransmitters

Other (biopterin loading test)

Disorders of vitamin and cofactor metabolism

5,10-methenyltetrahydrofolate synthetase deficiency (synonym: 5-formyltetrahydrofolate cycloligase deficiency)*

MTHFS (AR)

-

604,197

10,588

CSF neurotransmitters

CSF other (tetrahydrofolate & neopterin)

Disorders of vitamin and cofactor metabolism

Dihydrofolate reductase deficiency

DHFR (AR)

319,651

126,060

1719

CSF neurotransmitters

CSF other (tetrahydrofolate)

Disorders of vitamin and cofactor metabolism

Sodium-dependent multivitamin transporter deficiency*

SLC5A6 (AR)

–

604,024

8884

molecular testing

Disorders of vitamin and cofactor metabolism

Pyridoxamine 5′-phosphate oxidase deficiency*

PNPO (AR)

79,096

603,287

55,163

CSF amino acids

CSF other (vitamins)

Molecular testing

Disorders of vitamin and cofactor metabolism

Thiamine pyrophosphokinase deficiency*

TPK1 (AR)

293,955

614,458

27,010

CSF neurotransmitters

Urine organic acids

Blood lactate

Disorders of vitamin and cofactor metabolism

NAD(P)HX epimerase deficiency*

NAXE (AR)

555,407

608,862

128,240

Molecular testing

Blood lactate

Disorders of vitamin and cofactor metabolism

Mitochondrial thiamine pyrophosphate transporter deficiency*

SLC25A19 (AR)

217,396

606,521

60,386

Molecular testing

Disorders of vitamin and cofactor metabolism

Transcobalamin II deficiency*

TCN2 (AR)

859

275,350

6948

Urine organic acids

Plasma total homocysteine

Disorders of vitamin and cofactor metabolism

Proton-coupled folate transporter deficiency (synonym: hereditary folate malabsorption)*

SLC46A1 (AR)

90,045

229,050

113,235

Serum/RBC folate

CSF other (folate)

CSF neurotransmitters

Endocrine metabolic disorders

ATP-sensitive potassium channel regulatory/pore-forming subunit superactivity*

ABCC8 (AD/AR)/KCNJ11 (AD)

79,134

600,509

6833

Molecular testing

mtDNA-related disorders

Mitochondrial myopathy, encephalopathy, lactic acidosis and stroke-like episodes (MTTL1/MTTQ/MTTH/MTTK/MTTC/MTTS1/MTND1/MTND5/MTND6/MTTS2)

MT-ND1/MT-ND4/MT-ND5/MT-ND6/MT-CO1/MT-CPO2/MT-CO3/ MT-TQ/MT-TH/MT-TL1/MT-TF/MT-TS1/MT-TS2/MT-TW (Mt)

550

516,000 (MT-ND1), 516,003 (MT-ND4), 516,005 (MT-ND5), 516,006 (MT-ND6), 516,030 (MT-CO1), 516,040 (MT-CO2), 516,050 (MT-CO3), 590,030 (MT-TQ), 590,040 (MT-TH), 590,050 (MT-TL1), 590,070 (MT-TF), 590,080 (MT-TS1), 590,085 (MT-TS2), 590,095 (MT-TW)

4535 (MT-ND1), 4536 (MT-ND4), 4540 (MT-ND5), 4541 (MT-ND6), 4512 (MT-CO1), 4513 (MT-CO2), 4514 (MT-CO3), 4572 (MT-TQ), 4574 (MT-TS1), 4578 (MT-TW)

Molecular testing blood lactate

Neurotransmitter disorders

Succinic semialdehyde dehydrogenase deficiency

ALDH5A1 (AR)

22

610,045

7915

Urine organic acids

Neurotransmitter disorders

Tyrosine hydroxylase deficiency

TH (AR)

101,150

191,290

7054

CSF neurotransmitters

Neurotransmitter disorders

Vesicular monoamine transporter 2 deficiency

SLC18A2 (AR)

352,649

193,001

6571

CSF neurotransmitters

Neurotransmitter disorders

Aromatic L-amino acid decarboxylase deficiency*

DDC (AR)

35,708

107,930

1644

CSF neurotransmitters

Neurotransmitter disorders

Ionotropic glutamate receptor NMDA type subunit 1 dysregulation*

GRIN1 (AD)

-

138,249

2902

Molecular testing

Neurotransmitter disorders

Ionotropic glutamate receptor NMDA type subunit 2A dysregulation*

GRIN2A (AD)

289,266

138,253

2903

Molecular testing

Neurotransmitter disorders

Ionotropic glutamate receptor NMDA type subunit 2B dysregulation*

GRIN2B (AD)

-

138,252

2904

Molecular testing

Neurotransmitter disorders

Ionotropic glutamate receptor NMDA type subunit 2D superactivity*

GRIN2D (AD)

442,835

602,717

2906

Molecular testing

Neurotransmitter disorders

DNAJC12 deficiency*

DNAJC12 (AR)

508,523

617,384

56,521

Plasma amino acids

CSF neurotransmitters

Nuclear-encoded disorders of oxidative phosphorylation

ACAD9 deficiency*

ACAD9 (AR)

99,901

611,126

28,976

other (muscle OXPHOS)

Other disorders of mitochondrial function

Mitochondrial aspartate-glutamate carrier isoform 1 deficiency (synonym: aralar deficiency)*

SLC25A12 (AR)

353,217

612,949

8604

Molecular testing

Other disorders of mitochondrial function

Mitochondrial aspartate aminotransferase deficiency*

GOT2 (AR)

-

138,150

2806

Plasma amino acids

Plasma ammonia

Blood lactate

  1. Names and groups of disorders were based on the most recent International Conference on Inherited Metabolic Disorders (ICIMD) classification. OMIM = Online Mendelian Inheritance in Man®. HPO = Human Phenotype Ontology. Mode of inheritance for each gene is denoted as AD = autosomal dominant; AR = autosomal recessive; X-linked (dominant); Mt = mitochondrial. CSF = cerebrospinal fluid. * = new treatable ID (not included in previous database/review). ** = also identified by targeted enzyme testing. *** = consider white blood cells or muscle tissue CoQ10 analysis