Variant
SLC6A8 G253R
NM_005629.4(SLC6A8):c.757G>C (p.Gly253Arg)
- p.Gly253Arg
- p.G253R
- ClinVar classification
- Likely pathogenic
- Review status
- 3 stars out of 4reviewed by expert panel
- Last evaluated
- 11 April 2024
- Expert panel
- ClinGen Cerebral Creatine Deficiency Syndromes Variant Curation Expert Panel, ClinGen
Data current to ClinVar release 2026-10-12 · Dante Labs data release 2026.10.16-c6eea6bfFacts last changed 16 October 2026
Reference genomeGRCh38hg38
Positions on gene and variant pages follow this choice, in this browser.
Summary
G253R is a missense variant in SLC6A8: it changes a single amino acid in the protein the gene encodes. ClinVar classifies it as likely pathogenic for creatine transporter deficiency (reviewed by expert panel).
ClinVar classifications
| Condition | Classification | Review status | Submissions | Last evaluated |
|---|---|---|---|---|
| creatine transporter deficiencyClinVar VCV003256148 (opens in a new tab) | Likely pathogenic | 3 stars out of 4reviewed by expert panel | 1 submission | 11 April 2024 |
Classifications as ClinVar records them in release 2026-10-12. ClinVar updates them as evidence is reviewed.
Where it lies in SLC6A8
G253R lies in exon 4 of the 13 in SLC6A8's MANE Select transcript, NM_005629.4.
Molecular details
| Gene | SLC6A8 |
|---|---|
| Transcript | NM_005629.4MANE Select |
| Coding DNA change (HGVS c.) | c.757G>C |
| Protein change (HGVS p.) | p.Gly253Argp.G253R |
| Predicted consequence | Missensemissense_variant (opens in a new tab) |
| Predicted impact | Moderate |
| Position (GRCh38) | chrX:153692087 G>C |
| Position (GRCh37) | chrX:152957542 G>C |
| ClinVar Variation ID | VCV003256148 (opens in a new tab) |
| ClinVar Allele ID | 3414911 |
| ClinVar name | NM_005629.4(SLC6A8):c.757G>C (p.Gly253Arg) |
SLC6A8 G253R in other databases
Reports that look at this variant (1)
These Genome Test condition reports include G253R among the variants they look at.
| Report | Conditions | Inheritance |
|---|---|---|
| Cerebral Creatine Deficiency Syndromes | Cerebral Creatine Deficiency Syndrome |
Other variants in SLC6A8
- A153Gfs*36Likely pathogenic3 stars out of 4
- A191Qfs*10Pathogenic3 stars out of 4
- A404PLikely pathogenic3 stars out of 4
- A478Gfs*24Likely pathogenic3 stars out of 4
- c.262_262+1delinsTTPathogenic3 stars out of 4
- c.262+1G>TPathogenic3 stars out of 4
- c.263-1G>CPathogenic3 stars out of 4
- c.263-2A>GPathogenic3 stars out of 4
- c.778-2A>GLikely pathogenic3 stars out of 4
- c.912G>ALikely pathogenic3 stars out of 4
Limitations
This page describes publicly available information about a genetic variant. It is not a diagnosis, and it says nothing about whether you or anyone else carries this variant.
Classifications come from ClinVar and change as new evidence is reviewed. A classification here may differ from the one in ClinVar today, or from the one a laboratory reports.
Whole genome sequencing with short reads can miss or miscall some variants, particularly in repeated or highly similar stretches of DNA and in large insertions, deletions or rearrangements.
If you have questions about a variant in your own results or in your family, talk to a genetic counsellor or your doctor.
Sources & credits
- Classifications from ClinVar (release 2026-10-12), National Center for Biotechnology Information.
- Condition terms from the Mondo Disease Ontology (release 2026-10-06), used under CC BY 4.0.
- Gene symbols and names from the HUGO Gene Nomenclature Committee (release 2026-10-16).
- Allele identifiers from the ClinGen Allele Registry (release 2026-10-16-c4908f54).
- Reference SNP identifiers from dbSNP (release b157), National Center for Biotechnology Information.
- Gene–disease links from the Gene Curation Coalition, GenCC (release 2026-10-16).
- Difficult regions from the Genome in a Bottle Consortium (release v3.6).
- Transcripts from MANE (release v1.5), NCBI and EMBL-EBI.
- Predicted consequences from mehari (release 0.11.0), with transcript models from cdot.
- Built from Dante Labs data release 2026.10.16-c6eea6bf of 16 October 2026.
Cite this page
Dante Labs. (16 October 2026). SLC6A8 G253R (c.757G>C) (Version 2026.10.16-c6eea6bf). Retrieved 16 October 2026, from https://dantelabs.com/genes/slc6a8/variants/g253r
Dante Labs. SLC6A8 G253R (c.757G>C) [Internet]. Version 2026.10.16-c6eea6bf. 16 October 2026 [cited 16 October 2026]. Available from: https://dantelabs.com/genes/slc6a8/variants/g253r
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