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Aliases for ALDH5A1 Gene

Aliases for ALDH5A1 Gene

  • Aldehyde Dehydrogenase 5 Family Member A1 2 3 5
  • NAD(+)-Dependent Succinic Semialdehyde Dehydrogenase 3 4
  • EC 4 58
  • SSADH 3 4
  • Succinate-Semialdehyde Dehydrogenase, Mitochondrial 3
  • Mitochondrial Succinate Semialdehyde Dehydrogenase 3
  • Aldehyde Dehydrogenase 5 Family, Member A1 2
  • Aldehyde Dehydrogenase Family 5 Member A1 4
  • Succinate-Semialdehyde Dehydrogenase 2
  • EC 1.2.1 58
  • SSDH 3

External Ids for ALDH5A1 Gene

Previous GeneCards Identifiers for ALDH5A1 Gene

  • GC06P024552
  • GC06P024603

Summaries for ALDH5A1 Gene

Entrez Gene Summary for ALDH5A1 Gene

  • This protein belongs to the aldehyde dehydrogenase family of proteins. This gene encodes a mitochondrial NAD(+)-dependent succinic semialdehyde dehydrogenase. A deficiency of this enzyme, known as 4-hydroxybutyricaciduria, is a rare inborn error in the metabolism of the neurotransmitter 4-aminobutyric acid (GABA). In response to the defect, physiologic fluids from patients accumulate GHB, a compound with numerous neuromodulatory properties. Two transcript variants encoding distinct isoforms have been identified for this gene. [provided by RefSeq, Jul 2008]

GeneCards Summary for ALDH5A1 Gene

ALDH5A1 (Aldehyde Dehydrogenase 5 Family Member A1) is a Protein Coding gene. Diseases associated with ALDH5A1 include Succinic Semialdehyde Dehydrogenase Deficiency and Gamma-Amino Butyric Acid Metabolism Disorder. Among its related pathways are Neurotransmitter Release Cycle and Valproic Acid Pathway, Pharmacodynamics. GO annotations related to this gene include protein homodimerization activity and aldehyde dehydrogenase (NAD) activity.

UniProtKB/Swiss-Prot for ALDH5A1 Gene

  • Catalyzes one step in the degradation of the inhibitory neurotransmitter gamma-aminobutyric acid (GABA).

Gene Wiki entry for ALDH5A1 Gene

Additional gene information for ALDH5A1 Gene

No data available for CIViC summary , Tocris Summary , PharmGKB "VIP" Summary , fRNAdb sequence ontologies and piRNA Summary for ALDH5A1 Gene

Genomics for ALDH5A1 Gene

Regulatory Elements for ALDH5A1 Gene

Enhancers for ALDH5A1 Gene
GeneHancer Identifier Enhancer Score Enhancer Sources Gene-Enhancer Score TSS distance (kb) Number of Genes Away Size (kb) Transcription Factor Binding Sites within enhancer Gene Targets for Enhancer
GH06H024522 1.2 Ensembl ENCODE 26.2 +27.7 27688 0.9 TBP SIN3A BATF ATF7 RUNX3 IKZF2 CAVIN1 ZBTB11 USF2 HDAC8 ALDH5A1 GPLD1 ACOT13 TDP2 PIR52732
GH06H024494 1.1 ENCODE 20.4 +0.4 373 1.6 FOXA2 ARNT ARID4B SIN3A DMAP1 ZNF2 ZNF766 ZNF143 ZNF207 MXD4 ALDH5A1 GPLD1 PIR52732
GH06H024399 1.4 Ensembl ENCODE 13.9 -92.9 -92919 5.3 FOXA2 PKNOX1 MLX ARNT ARID4B SIN3A DMAP1 ZNF2 YY1 ZNF143 MRS2 ALDH5A1 DCDC2
GH06H024504 1 ENCODE 16.1 +10.3 10278 1.3 PKNOX1 FOXA2 ARID4B SIN3A DMAP1 YY1 SLC30A9 SP5 REST MIER2 ALDH5A1 GPLD1 PIR52732
GH06H024583 1.3 Ensembl ENCODE 10.4 +89.4 89427 2 PKNOX1 ARNT FEZF1 ZNF2 ZNF121 ZNF143 ZNF207 KLF7 RUNX3 SP3 ACOT13 KIAA0319 ENSG00000230372 ENSG00000223623 LOC101928663 SPTLC1P2 TDP2 GPLD1 ALDH5A1 PIR60469
- Elite enhancer and/or Elite enhancer-gene association Download GeneHancer data dump

Enhancers around ALDH5A1 on UCSC Golden Path with GeneCards custom track

Promoters for ALDH5A1 Gene
Ensembl Regulatory Elements (ENSRs) TSS Distance (bp) Size (bp) Binding Sites for Transcription Factors within promoters
ENSR00000194780 248 1401 FOXA2 MLX ARNT ARID4B SIN3A DMAP1 ZNF2 ZNF766 ZNF143 ZNF207

Genomic Locations for ALDH5A1 Gene

Genomic Locations for ALDH5A1 Gene
42,356 bases
Plus strand

Genomic View for ALDH5A1 Gene

Genes around ALDH5A1 on UCSC Golden Path with GeneCards custom track

Cytogenetic band:
ALDH5A1 Gene in genomic location: bands according to Ensembl, locations according to GeneLoc (and/or Entrez Gene and/or Ensembl if different)
Genomic Location for ALDH5A1 Gene
GeneLoc Logo Genomic Neighborhood Exon StructureGene Density

RefSeq DNA sequence for ALDH5A1 Gene

Proteins for ALDH5A1 Gene

  • Protein details for ALDH5A1 Gene (UniProtKB/Swiss-Prot)

    Protein Symbol:
    Recommended name:
    Succinate-semialdehyde dehydrogenase, mitochondrial
    Protein Accession:
    Secondary Accessions:
    • B2RD26
    • G5E949
    • Q546H9
    • Q8N3W6

    Protein attributes for ALDH5A1 Gene

    535 amino acids
    Molecular mass:
    57215 Da
    Quaternary structure:
    • Homotetramer.

    Three dimensional structures from OCA and Proteopedia for ALDH5A1 Gene

    Alternative splice isoforms for ALDH5A1 Gene


neXtProt entry for ALDH5A1 Gene

Selected DME Specific Peptides for ALDH5A1 Gene


Post-translational modifications for ALDH5A1 Gene

  • Modification sites at PhosphoSitePlus
  • Modification sites at neXtProt

Other Protein References for ALDH5A1 Gene

Domains & Families for ALDH5A1 Gene

Gene Families for ALDH5A1 Gene

Human Protein Atlas (HPA):
  • Disease related genes
  • Enzymes
  • Potential drug targets
  • Predicted intracellular proteins

Graphical View of Domain Structure for InterPro Entry



  • Belongs to the aldehyde dehydrogenase family.
  • Belongs to the aldehyde dehydrogenase family.
genes like me logo Genes that share domains with ALDH5A1: view

Function for ALDH5A1 Gene

Molecular function for ALDH5A1 Gene

GENATLAS Biochemistry:
NAD+ dependent succinic semialdehyde dehydrogenase,involved in the biosynthesis of gammahydroxybutyrate and in the detoxification of xenobiotic carbonyl compounds
UniProtKB/Swiss-Prot CatalyticActivity:
Succinate semialdehyde + NAD(+) + H(2)O = succinate + NADH.
UniProtKB/Swiss-Prot EnzymeRegulation:
Redox-regulated. Inhibited under oxydizing conditions. Inhibited by hydrogen peroxide H(2)O(2).
UniProtKB/Swiss-Prot Function:
Catalyzes one step in the degradation of the inhibitory neurotransmitter gamma-aminobutyric acid (GABA).

Enzyme Numbers (IUBMB) for ALDH5A1 Gene

Gene Ontology (GO) - Molecular Function for ALDH5A1 Gene

GO ID Qualified GO term Evidence PubMed IDs
GO:0004777 succinate-semialdehyde dehydrogenase (NAD+) activity TAS --
GO:0009013 succinate-semialdehyde dehydrogenase [NAD(P)+] activity IEA --
GO:0016491 oxidoreductase activity IEA --
GO:0042803 protein homodimerization activity IC 16199352
GO:0051287 NAD binding IBA --
genes like me logo Genes that share ontologies with ALDH5A1: view
genes like me logo Genes that share phenotypes with ALDH5A1: view

Human Phenotype Ontology for ALDH5A1 Gene

HPO Id HPO Name Alternative Ids Definition Synonyms

Animal Models for ALDH5A1 Gene

MGI Knock Outs for ALDH5A1:

Clone Products

No data available for Phenotypes From GWAS Catalog , Transcription Factor Targets and HOMER Transcription for ALDH5A1 Gene

Localization for ALDH5A1 Gene

Subcellular locations from UniProtKB/Swiss-Prot for ALDH5A1 Gene


Subcellular locations from

Extracellular space Cytosol Plasma membrane Cytoskeleton Lysosome Endosome Peroxisome ER Golgi Apparatus Nucleus Mitochondrion 0 1 2 3 4 5 Confidence
COMPARTMENTS Subcellular localization image for ALDH5A1 gene
Compartment Confidence
mitochondrion 5
peroxisome 2
cytosol 2
nucleus 1

Subcellular locations from the

Human Protein Atlas (HPA)

Gene Ontology (GO) - Cellular Components for ALDH5A1 Gene

GO ID Qualified GO term Evidence PubMed IDs
GO:0005739 mitochondrion ISS --
GO:0005759 mitochondrial matrix TAS --
genes like me logo Genes that share ontologies with ALDH5A1: view

Pathways & Interactions for ALDH5A1 Gene

genes like me logo Genes that share pathways with ALDH5A1: view

UniProtKB/Swiss-Prot P51649-SSDH_HUMAN

  • Pathway: Amino-acid degradation; 4-aminobutanoate degradation.

Gene Ontology (GO) - Biological Process for ALDH5A1 Gene

GO ID Qualified GO term Evidence PubMed IDs
GO:0006006 glucose metabolic process ISS,IEA --
GO:0006083 acetate metabolic process IEA,ISS --
GO:0006105 succinate metabolic process ISS,IEA --
GO:0006536 glutamate metabolic process IEA,ISS --
GO:0006540 glutamate decarboxylation to succinate IBA --
genes like me logo Genes that share ontologies with ALDH5A1: view

No data available for SIGNOR curated interactions for ALDH5A1 Gene

Drugs & Compounds for ALDH5A1 Gene

(14) Drugs for ALDH5A1 Gene - From: DrugBank, PharmGKB, HMDB, and Novoseek

Name Status Disease Links Group Role Mechanism of Action Clinical Trials
Chlormerodrin Approved, Withdrawn Pharma Target, inhibitor 0
Succinic acid Approved Nutra Full agonist, Agonist, Target, inhibitor 0
Sodium oxybate Approved Pharma Enzyme, substrate 39
Valproic Acid Approved, Investigational Pharma Target, inhibitor HDAC1 inhibitor, Histone deacetylase (HDAC)inhibitors 331
Methadone Approved Pharma 336

(9) Additional Compounds for ALDH5A1 Gene - From: HMDB and Novoseek

Name Synonyms Role CAS Number PubChem IDs PubMed IDs
Hydrogen Ion
  • Hydrogen cation
  • Hydron
  • Proton
Succinic acid semialdehyde
  • 2-Formylpropionic acid ethyl ester
  • 3-Formylpropanoate
  • 3-Formylpropanoic acid
  • 4-Oxobutanoate
  • 4-Oxobutanoic acid
genes like me logo Genes that share compounds with ALDH5A1: view

Transcripts for ALDH5A1 Gene

Unigene Clusters for ALDH5A1 Gene

Aldehyde dehydrogenase 5 family, member A1:
Representative Sequences:

Clone Products

Alternative Splicing Database (ASD) splice patterns (SP) for ALDH5A1 Gene

ExUns: 1a · 1b ^ 2 ^ 3 ^ 4 ^ 5 ^ 6 ^ 7 ^ 8a · 8b ^ 9 ^ 10 ^ 11a · 11b · 11c
SP1: -
SP2: - -

Relevant External Links for ALDH5A1 Gene

GeneLoc Exon Structure for
ECgene alternative splicing isoforms for

Expression for ALDH5A1 Gene

mRNA expression in normal human tissues from GTEx, Illumina, BioGPS, and CGAP SAGE for ALDH5A1 Gene

mRNA expression in embryonic tissues and stem cells from LifeMap Discovery

Protein differential expression in normal tissues from HIPED for ALDH5A1 Gene

This gene is overexpressed in Liver (12.3) and Frontal cortex (7.3).

Integrated Proteomics: protein expression in normal tissues and cell lines from ProteomicsDB, PaxDb, MaxQB, and MOPED for ALDH5A1 Gene

Protein tissue co-expression partners for ALDH5A1 Gene

- Elite partner

NURSA nuclear receptor signaling pathways regulating expression of ALDH5A1 Gene:


SOURCE GeneReport for Unigene cluster for ALDH5A1 Gene:


mRNA Expression by UniProt/SwissProt for ALDH5A1 Gene:

Tissue specificity: Brain, pancreas, heart, liver, skeletal muscle and kidney. Lower in placenta.

Evidence on tissue expression from TISSUES for ALDH5A1 Gene

  • Nervous system(4.7)
  • Liver(4.6)
  • Blood(4.2)

Phenotype-based relationships between genes and organs from Gene ORGANizer for ALDH5A1 Gene

Germ Layers:
  • ectoderm
  • mesoderm
  • nervous
  • skeletal muscle
Head and neck:
  • brain
  • eye
  • head
  • peripheral nerve
  • peripheral nervous system
genes like me logo Genes that share expression patterns with ALDH5A1: view

No data available for mRNA differential expression in normal tissues for ALDH5A1 Gene

Orthologs for ALDH5A1 Gene

This gene was present in the common ancestor of eukaryotes.

Orthologs for ALDH5A1 Gene

Organism Taxonomy Gene Similarity Type Details
(Pan troglodytes)
Mammalia ALDH5A1 34 33
  • 99.56 (n)
(Canis familiaris)
Mammalia ALDH5A1 34 33
  • 87.87 (n)
(Bos Taurus)
Mammalia ALDH5A1 33 34
  • 86.12 (n)
(Rattus norvegicus)
Mammalia Aldh5a1 33
  • 81.96 (n)
(Mus musculus)
Mammalia Aldh5a1 16 34 33
  • 81.96 (n)
(Monodelphis domestica)
Mammalia ALDH5A1 34
  • 79 (a)
(Gallus gallus)
Aves ALDH5A1 33 34
  • 72.58 (n)
(Anolis carolinensis)
Reptilia ALDH5A1 34
  • 76 (a)
tropical clawed frog
(Silurana tropicalis)
Amphibia aldh5a1 33
  • 70.8 (n)
(Danio rerio)
Actinopterygii aldh5a1 33 34
  • 67.68 (n)
African malaria mosquito
(Anopheles gambiae)
Insecta AgaP_AGAP003165 33
  • 56.6 (n)
fruit fly
(Drosophila melanogaster)
Insecta Ssadh 33 34
  • 54.8 (n)
CG4685 35
  • 52 (a)
(Caenorhabditis elegans)
Secernentea alh-7 33 34
  • 53.77 (n)
K. lactis yeast
(Kluyveromyces lactis)
Saccharomycetes KLLA0E17491g 33
  • 54.14 (n)
baker's yeast
(Saccharomyces cerevisiae)
Saccharomycetes UGA2 33 34 36
  • 53.57 (n)
A. gosspyii yeast
(Ashbya gossypii)
Saccharomycetes AGOS_AER007W 33
  • 52.73 (n)
thale cress
(Arabidopsis thaliana)
eudicotyledons ALDH5F1 33
  • 58.63 (n)
Alicante grape
(Vitis vinifera)
eudicotyledons Vvi.3967 33
(Hordeum vulgare)
Liliopsida Hv.5500 33
(Oryza sativa)
Liliopsida Os.9838 33
(Triticum aestivum)
Liliopsida Ta.5774 33
sea squirt
(Ciona savignyi)
Ascidiacea -- 34
  • 65 (a)
-- 34
  • 56 (a)
bread mold
(Neurospora crassa)
Ascomycetes NCU00936 33
  • 57.53 (n)
fission yeast
(Schizosaccharomyces pombe)
Schizosaccharomycetes SPAC1002.12c 33
  • 56.52 (n)
sea squirt
(Ciona intestinalis)
Ascidiacea Cin.6288 33
Species where no ortholog for ALDH5A1 was found in the sources mined by GeneCards:
  • Actinobacteria (Mycobacterium tuberculosis)
  • African clawed frog (Xenopus laevis)
  • alpha proteobacteria (Wolbachia pipientis)
  • amoeba (Dictyostelium discoideum)
  • Archea (Pyrococcus horikoshii)
  • beta proteobacteria (Neisseria meningitidis)
  • Chromalveolata (Phytophthora infestans)
  • common water flea (Daphnia pulex)
  • corn (Zea mays)
  • E. coli (Escherichia coli)
  • filamentous fungi (Aspergillus nidulans)
  • Firmicute bacteria (Streptococcus pneumoniae)
  • green algae (Chlamydomonas reinhardtii)
  • honey bee (Apis mellifera)
  • loblloly pine (Pinus taeda)
  • malaria parasite (Plasmodium falciparum)
  • medicago trunc (Medicago Truncatula)
  • moss (Physcomitrella patens)
  • orangutan (Pongo pygmaeus)
  • pig (Sus scrofa)
  • platypus (Ornithorhynchus anatinus)
  • rainbow trout (Oncorhynchus mykiss)
  • rice blast fungus (Magnaporthe grisea)
  • schistosome parasite (Schistosoma mansoni)
  • sea anemone (Nematostella vectensis)
  • sea urchin (Strongylocentrotus purpuratus)
  • sorghum (Sorghum bicolor)
  • soybean (Glycine max)
  • stem rust fungus (Puccinia graminis)
  • sugarcane (Saccharum officinarum)
  • tomato (Lycopersicon esculentum)
  • toxoplasmosis (Toxoplasma gondii)
  • Trichoplax (Trichoplax adhaerens)

Evolution for ALDH5A1 Gene

Gene Tree for ALDH5A1 (if available)
Gene Tree for ALDH5A1 (if available)

Paralogs for ALDH5A1 Gene

(11) SIMAP similar genes for ALDH5A1 Gene using alignment to 4 proteins:

genes like me logo Genes that share paralogs with ALDH5A1: view

No data available for Paralogs for ALDH5A1 Gene

Variants for ALDH5A1 Gene

Sequence variations from dbSNP and Humsavar for ALDH5A1 Gene

SNP ID Clin Chr 06 pos Sequence Context AA Info Type
rs118203984 Pathogenic, Succinic semialdehyde dehydrogenase deficiency (SSADHD) [MIM:271980] 24,528,049(+) GACAG(A/G)TGGAA reference, missense
rs145087265 Succinic semialdehyde dehydrogenase deficiency (SSADHD) [MIM:271980] 24,515,204(+) ATACA(A/G)TGTTA reference, missense
rs375628463 Pathogenic, Succinic semialdehyde dehydrogenase deficiency (SSADHD) [MIM:271980] 24,515,243(+) AGTAG(A/G)GGAGG reference, missense
rs72552281 Succinic semialdehyde dehydrogenase deficiency (SSADHD) [MIM:271980] 24,503,350(+) TTTAC(A/G)GAGAC reference, missense
rs72552282 Succinic semialdehyde dehydrogenase deficiency (SSADHD) [MIM:271980] 24,504,927(+) CGGCT(A/G)TACTG reference, missense

Structural Variations from Database of Genomic Variants (DGV) for ALDH5A1 Gene

Variant ID Type Subtype PubMed ID
nsv965688 CNV duplication 23825009
nsv519552 CNV gain 19592680
nsv1109765 CNV deletion 24896259
esv34020 CNV loss 18971310
esv2763542 CNV gain 21179565
esv2648573 CNV deletion 19546169

Variation tolerance for ALDH5A1 Gene

Residual Variation Intolerance Score: 72.3% of all genes are more intolerant (likely to be disease-causing)
Gene Damage Index Score: 7.79; 83.35% of all genes are more intolerant (likely to be disease-causing)

Relevant External Links for ALDH5A1 Gene

Human Gene Mutation Database (HGMD)
SNPedia medical, phenotypic, and genealogical associations of SNPs for

No data available for Polymorphic Variants from UniProtKB/Swiss-Prot for ALDH5A1 Gene

Disorders for ALDH5A1 Gene

MalaCards: The human disease database

(12) MalaCards diseases for ALDH5A1 Gene - From: HGMD, OMIM, ClinVar, GeneTests, Orphanet, Swiss-Prot, DISEASES, Novoseek, and GeneCards

Disorder Aliases PubMed IDs
succinic semialdehyde dehydrogenase deficiency
  • 4-hydroxybutyric aciduria
gamma-amino butyric acid metabolism disorder
canavan disease
  • canavan-van bogaert-bertrand disease
gaba-transaminase deficiency
  • gamma-aminobutyric acid transaminase deficiency
brown-sequard syndrome
  • brown-squard syndrome
- elite association - COSMIC cancer census association via MalaCards


  • Succinic semialdehyde dehydrogenase deficiency (SSADHD) [MIM:271980]: A rare inborn error of 4-aminobutyric acid (GABA) metabolism, which leads to accumulation of 4-hydroxybutyric acid in physiologic fluids of patients. The disease is clinically characterized by developmental delay, hypotonia, mental retardation, ataxia, seizures, hyperkinetic behavior, aggression, and sleep disturbances. {ECO:0000269 PubMed:11243727, ECO:0000269 PubMed:11901270, ECO:0000269 PubMed:14635103}. Note=The disease is caused by mutations affecting the gene represented in this entry.

Genatlas disease for ALDH5A1 Gene

4-hydroxybutyric aciduria characterized by psychomotor retardation,ataxia,hypotonia

Relevant External Links for ALDH5A1

Genetic Association Database (GAD)
Human Genome Epidemiology (HuGE) Navigator
Atlas of Genetics and Cytogenetics in Oncology and Haematology:
genes like me logo Genes that share disorders with ALDH5A1: view

Publications for ALDH5A1 Gene

  1. Molecular cloning of the mature NAD(+)-dependent succinic semialdehyde dehydrogenase from rat and human. cDNA isolation, evolutionary homology, and tissue expression. (PMID: 7814412) Chambliss KL … Gibson KM (The Journal of biological chemistry 1995) 2 3 4 22 60
  2. Redox-switch modulation of human SSADH by dynamic catalytic loop. (PMID: 19300440) Kim YG … Kim KJ (The EMBO journal 2009) 3 4 22 60
  3. Cognitive functioning and survival in the elderly: the SSADH C538T polymorphism. (PMID: 18505418) De Rango F … De Benedictis G (Annals of human genetics 2008) 3 22 45 60
  4. Candidate gene analysis of the succinic semialdehyde dehydrogenase gene (ALDH5A1) in patients with idiopathic generalized epilepsy and photosensitivity. (PMID: 16406321) Lorenz S … Sander T (Neuroscience letters 2006) 3 22 45 60
  5. An association study between polymorphisms in five genes in glutamate and GABA pathway and paranoid schizophrenia. (PMID: 15642443) Zhang B … Shen Y (European psychiatry : the journal of the Association of European Psychiatrists 2005) 3 22 45 60

Products for ALDH5A1 Gene

Sources for ALDH5A1 Gene

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