Is ABCD1 p.Val635= (c.1905G>T) pathogenic?

ABCD1 p.Val635= (c.1905G>T) is classified Likely benign in ABCD1 (ClinVar, Single submitter, 1 submitter; last evaluated 2022-01-17). No allele count reported in gnomAD v4.1 (AN 1,208,156); Associated with adrenoleukodystrophy.

What condition is associated with ABCD1 p.Val635= (c.1905G>T)?

ABCD1 p.Val635= (c.1905G>T) is associated with adrenoleukodystrophy (ClinVar).

How common is ABCD1 p.Val635= (c.1905G>T) in the general population?

ABCD1 p.Val635= (c.1905G>T) is no allele count reported in gnomAD v4.1 (AN 1,208,156) (gnomAD).

How is X-linked adrenoleukodystrophy inherited?

Typically X-linked dominant (Orphanet). A genetic counselor can assess individual risk for a family.

ABCD1 p.Val635=

c.1905G>T · rs1458996259 · VCV1910499

Likely benign Single submitter

Classification

Likely benign

ClinVar

Review

Single submitter ★☆☆☆

ClinVar · 1 submitter

gnomAD v4.1

Not reported

no allele count reported in gnomAD v4.1 (AN 1,208,156)

Conditions

adrenoleukodystrophy

Computational evidence

Protein change
Missense predictors do not apply to this variant type; conservation carries the signal.
Splicing
SpliceAI	<0.2	no splice effect predicted · four deltas, not one · how we know
Constraint at this position
Conservation	phyloP 0.26	GERP -3.1, phastCons 0.94
Overall
CADD	3.808	PHRED · no single calibrated threshold — expert panels disagree

Population frequency

gnomAD v4.1 · exomes + genomes

No allele count reported in gnomAD v4.1 (AN 1,208,156). This is missing data, not an absence: the variant may or may not be present in gnomAD. Rarity (ACMG PM2) and BA1/BS1 cannot be assessed for it.

Variant & gene context

Gene: ABCD1
Protein: p.Val635=
Coding: c.1905G>T
MANE Select: NM_000033
dbSNP: rs1458996259
Type: single nucleotide variant
Location: chrX:153743260 (GRCh38)
Structure: AlphaFold pLDDT 81.58 · 14 PDB
Residue 635: a UniProt-annotated variant site (in ald); the abc transporter domain

Full ABCD1 gene report on Sugi Atlas → Gene function, pathways, protein structure, interactions & more

Disease context

adrenoleukodystrophy — disease report on Sugi Atlas → Associated genes, phenotypes, clinical trials & treatments

For X-linked adrenoleukodystrophy (Orphanet):

Inheritance: X-linked dominant
Onset: Adolescent, Adult, Childhood, Elderly
Prevalence: 1-9 / 1 000 000 (Israel)

Similar variants

ABCD1 p.Val635Met Conflicting classifications of pathogenicity ★ ⚠ same residue
ABCD1 p.Val635_Ile637del Uncertain significance ★ same residue
ABCD1 p.Val635Ala Uncertain significance ★ ⚠ same residue
ABCD1 c.1635-2A>G Pathogenic ★★ same condition
ABCD1 c.1781-1G>C Pathogenic ★★ same condition
ABCD1 c.1781-1G>T Pathogenic/Likely pathogenic ★★ same condition
ABCD1 c.1866-10G>A Pathogenic/Likely pathogenic ★★ same condition
ABCD1 c.1866-1G>C Likely pathogenic ★★ same condition

Built on 18 open, versioned datasets — ClinVar, gnomAD, AlphaMissense, REVEL, ClinGen & more — plus Sugi Variant's own cross-source analysis. Source data 2026-01–2026-10, ClinVar 2026-10. Full sources & versions →

Cite Sugi Variant

Gür T. Sugi Variant: A Deterministic Per-Variant Germline Reference from a Knowledge Graph for Humans and AI Agents. 2026. doi:10.5281/zenodo.21509445. This variant: https://sugi.bio/variant/abcd1-p-val635 (accessed [today's date]).

Preprint & method: sugi.bio/variant/method Machine-readable: this page as Markdown