Gene
SLC1A4
solute carrier family 1 member 4
- HGNC 10942↗(opens in a new tab)
- Ensembl gene ENSG00000115902↗(opens in a new tab)
- NCBI Gene 6509↗(opens in a new tab)
Summary
- Cytogenetic location
- 2p14
- Coordinates
- Chromosome 2: 64,989,399–65,023,865 (GRCh38)
- Exons
- 8 exons across 34.5 kb
- Protein
- 532 amino acids
- Inheritance
- Autosomal recessive
- Also known as
- SATT, ASCT1, ASCT-1
- MANE Select transcript
- ENST00000234256.4NM_003038.5
- Locus type
- gene with protein product
- Very high
- Confident
- Low
- Very low
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Disorders of Glycine & Serine Metabolism
- Serine Deficiency DisordersAutosomal recessive
Caused by variants in PHGDH, PSAT1 or PSPH, which block serine production and can cause small head size, seizures and developmental delay.
- ClinGen rates the link definitive
- 4 GenCC submitters rate it definitive or strong
What knowing changes
Knowing allows serine and glycine supplementation, which can prevent or improve symptoms when started early, including before birth.
Inheritance
- Autosomal recessive
- It takes a changed copy from each parent. With one, you are a carrier and usually unaffected; when both parents are carriers, each child has a one-in-four chance of inheriting two.
How SLC1A4 is laid out
- Coding sequence
- Untranslated region
- Intron
- Direction of transcription
- Known disease-causing sites
- Stretches short reads find hard
Exons of the gene's MANE Select transcript (release v1.5), from NCBI and EMBL-EBI, on the GRCh38 reference genome.
Chromosome bands from UCSC's GRCh38 ideogram (2022-10-29).
Nearby genes from Ensembl release 116, on GRCh38.
Exons make up 4.6 kb of the gene's 34.5 kb; 1,599 of those bases code for the protein.
How a genome test reads SLC1A4
14
positions in SLC1A4 where ClinVar classes a change as pathogenic or likely pathogenic
None of them falls in a region short reads find hard.
A whole genome covers all 34.5 kb of SLC1A4, introns included, not only the 4.6 kb of exons.
Genes linked to the same conditions
Traits linked to SLC1A4
The Human Phenotype Ontology lists these as features of the rare conditions SLC1A4 can cause. Each trait's page lists the other genes linked to it.
Abnormality of the nervous system
- Absent speech development
- Babinski sign
- Global developmental delay
- Thin corpus callosum
- Delayed speech and language development
- Increased reflexes
- Intellectual disability
- Abnormal cerebral white matter morphology
Show 19 more traits
- Brain degeneration
- Brisk reflexes
- Delayed CNS myelination
- Generalized-onset seizure
- Motor delay
- Underdevelopment of part of brain called corpus callosum
- Cerebral hypomyelination
- Clonus
- Epilepsy
- Grand mal seizures
- Hair-pulling
- Hypsarrhythmia
- Infantile spasms
- Irritability
- More active than typical
- Myoclonic spasms
- Repetitive movements
- Degeneration of cerebrum
- Inability to walk
Abnormality of head or neck
- Abnormally small head
- Development of small head that was not present at birth
- Drooling
- Small head present at birth
- Abnormal facial shape
- Depressed nasal bridge
- Monobrow
- Wide nasal bridge
Show 1 more trait
External links
Gene records
Transcript
Protein
Where this comes from
- HGNC: the gene's symbol, name, other symbols and location.
- MANE Select v1.5, from NCBI and EMBL-EBI: the transcript, its exons and coding sequence.
- GenCC and ClinGen, released 2026-10-16: which conditions the gene is linked to, and how strongly.
- The ACMG secondary findings list, SF v3.2.
- ClinVar and the GIAB stratifications: known disease-causing sites, and the regions short reads find hard.
- The Human Phenotype Ontology, release 2026-09-01: the traits linked to the gene. Find out more at hpo.jax.org.
- Data release 2026.10.16-c6eea6bf.
Cite this page
Dante Labs. (n.d.). SLC1A4 gene: solute carrier family 1 member 4. Retrieved 17 October 2026, from https://dantelabs.com/genes/slc1a4
Dante Labs. SLC1A4 gene: solute carrier family 1 member 4 [Internet]. [cited 17 October 2026]. Available from: https://dantelabs.com/genes/slc1a4
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