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IRF2BPL p.Asp552=

c.1656C>T · rs1227932885 · VCV2578722

Likely benign Multiple submitters
Classification
Likely benign
ClinVar
Review
Multiple submitters ★★☆☆
ClinVar · 2 submitters
gnomAD v4.1
Rare
very rare (popmax 0.00527%, nfe)

Computational evidence

Protein change
Missense predictors do not apply to this variant type; conservation carries the signal.
Splicing
SpliceAI<0.2no splice effect predicted · four deltas, not one · how we know
Constraint at this position
ConservationphyloP 3.2GERP 0.044, phastCons 1
Overall
CADD8.109PHRED · no single calibrated threshold — expert panels disagree

Population frequency

gnomAD v4.1 · exomes + genomes
Grpmax group 0.00527% European (non-Finnish) · 61/1,157,548 alleles
Filtering AF 0.00418% ClinGen BA1/BS1 input FAF95, joint · FAF99 0.00379%
Overall 0.00399% 62/1,552,960 alleles · very rare exomes 60/1,400,896 · genomes 2/152,064 · joint denominator
Ancestry group Frequency 1 in
European (non-Finnish)grpmax 0.00527% 18,976
Remaining individualsnot grpmax-eligible 0.00166% 60,188

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
IRF2BPL
Protein
p.Asp552=
Coding
c.1656C>T
MANE Select
NM_024496
dbSNP
rs1227932885
Type
single nucleotide variant
Location
chr14:77026137 (GRCh38)
Gene constraint
LOEUF 0.544 · pLI 0.91 · ClinGen HI 1/3 (gnomAD)
Structure
AlphaFold pLDDT 62.01 · 1 PDB
Residue 552
a UniProt-annotated variant site (in nedamss); a UniProt-annotated variant site (in nedamss; loss of function); the 'disordered' region
Full IRF2BPL 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/irf2bpl-p-asp552 (accessed [today's date]).

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