Is PKHD1 p.Arg3482= (c.10446C>A) pathogenic?

PKHD1 p.Arg3482= (c.10446C>A) is classified Likely benign in PKHD1 (ClinVar, Single submitter, 1 submitter; last evaluated 2022-02-19). Very rare (popmax 0.0011%, sas); Associated with autosomal recessive polycystic kidney disease.

What condition is associated with PKHD1 p.Arg3482= (c.10446C>A)?

PKHD1 p.Arg3482= (c.10446C>A) is associated with autosomal recessive polycystic kidney disease (ClinVar).

How common is PKHD1 p.Arg3482= (c.10446C>A) in the general population?

PKHD1 p.Arg3482= (c.10446C>A) is very rare (popmax 0.0011%, sas) (gnomAD).

How is Autosomal recessive polycystic kidney disease inherited?

Typically Autosomal recessive (Orphanet). A genetic counselor can assess individual risk for a family.

PKHD1 p.Arg3482=

c.10446C>A · rs1396126148 · VCV799080

Likely benign Single submitter

Classification

Likely benign

ClinVar

Review

Single submitter ★☆☆☆

ClinVar · 1 submitter

gnomAD v4.1

Rare

very rare (popmax 0.0011%, sas)

Conditions

autosomal recessive polycystic kidney disease

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
Conservation	phyloP -2.9	GERP -5.7
Overall
CADD	0.084	PHRED · no single calibrated threshold — expert panels disagree

Population frequency

gnomAD v4.1 · exomes + genomes

Grpmax group 0.0011% South Asian · 1/91,088 alleles

Overall 6.84e-05% 1/1,461,590 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: PKHD1
Protein: p.Arg3482=
Coding: c.10446C>A
MANE Select: NM_138694
dbSNP: rs1396126148
Type: single nucleotide variant
Location: chr6:51659680 (GRCh38)
Gene constraint: LOEUF 0.783 · pLI <0.01 (gnomAD)
Residue 3482: a UniProt-annotated variant site (found in a patient affected by polycystic liver disease; uncertain significance); a UniProt-annotated variant site (found in a patient affected by polycystic liver disease; likely pathogenic); a UniProt-annotated variant site (in pkd4)

Full PKHD1 gene report on Sugi Atlas → Gene function, pathways, protein structure, interactions & more

Disease context

autosomal recessive polycystic kidney disease — disease report on Sugi Atlas → Associated genes, phenotypes, clinical trials & treatments

For Autosomal recessive polycystic kidney disease (Orphanet):

Inheritance: Autosomal recessive
Onset: All ages
Prevalence: 1-9 / 100 000 (Germany)

Similar variants

PKHD1 p.Arg3482Cys Pathogenic/Likely pathogenic ★★ ⚠ same residue
PKHD1 p.Arg3482His Uncertain significance ★★ ⚠ same residue
PKHD1 p.Arg3482Leu Uncertain significance ★ same residue
PKHD1 p.Arg3482Ser Uncertain significance ★ same residue
PKHD1 c.11174+2T>C Likely pathogenic ★★ same condition
PKHD1 c.11310+1G>C Pathogenic/Likely pathogenic ★★ same condition
PKHD1 c.11398+2T>C Pathogenic/Likely pathogenic ★★ same condition
PKHD1 c.11507-1G>A 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/pkhd1-p-arg3482 (accessed [today's date]).

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