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ADNP p.Ala858=

c.2574T>C · rs373887686 · VCV728627

Likely benign Multiple submitters
Classification
Likely benign
ClinVar
Review
Multiple submitters ★★☆☆
ClinVar · 2 submitters
gnomAD v4.1
Rare
very rare (popmax 0.000847%, nfe)

Computational evidence

Protein change
Missense predictors do not apply to this variant type; conservation carries the signal.
Splicing
SpliceAI—not assessed · no allele here is in the release
Constraint at this position
ConservationphyloP 0.67GERP -2, phastCons 0.91
Overall
CADD2.174PHRED · no single calibrated threshold — expert panels disagree

Population frequency

gnomAD v4.1 · exomes + genomes
Grpmax group 0.000847% European (non-Finnish) · 10/1,180,036 alleles
Filtering AF 0.000429% ClinGen BA1/BS1 input FAF95, joint · FAF99 0.000312%
Overall 0.00062% 10/1,614,052 alleles · very rare

Rarity supports pathogenicity (ACMG PM2); frequency above a disease-specific BA1/BS1 threshold argues against it. A variant frequent in one ancestry group can be near-absent in others, so a single global figure can mislead.

Variant & gene context

Gene
ADNP
Protein
p.Ala858=
Coding
c.2574T>C
MANE Select
NM_001282531
dbSNP
rs373887686
Type
single nucleotide variant
Location
chr20:50892140 (GRCh38)
Gene constraint
LOEUF 0.106 · pLI 1.00 · ClinGen HI 3/3 (gnomAD)
Structure
AlphaFold pLDDT 57.07
Residue 858
the 'disordered' region
Full ADNP gene report on Sugi Atlas → Gene function, pathways, protein structure, interactions & more

Similar variants

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/adnp-p-ala858 (accessed [today's date]).

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