Is PSPH p.Asp20= (c.60T>C) pathogenic?

PSPH p.Asp20= (c.60T>C) is classified Uncertain significance in PSPH (ClinVar, Single submitter, 1 submitter; last evaluated 2018-01-13). Rare (popmax 0.319%, eas); Associated with PSPH deficiency.

What condition is associated with PSPH p.Asp20= (c.60T>C)?

PSPH p.Asp20= (c.60T>C) is associated with PSPH deficiency (ClinVar).

How common is PSPH p.Asp20= (c.60T>C) in the general population?

PSPH p.Asp20= (c.60T>C) is rare (popmax 0.319%, eas) (gnomAD).

PSPH p.Asp20=

c.60T>C · rs201376678 · VCV360517

Uncertain significance Single submitter

Classification

Uncertain significance

ClinVar

Review

Single submitter ★☆☆☆

ClinVar · 1 submitter

gnomAD v4.1

Rare

rare (popmax 0.319%, eas)

Conditions

PSPH deficiency

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 -1.4	GERP 1.1
Overall
CADD	1.125	PHRED · no single calibrated threshold — expert panels disagree

Population frequency

gnomAD v4.1 · exomes + genomes

Grpmax group 0.319% East Asian · 143/44,892 alleles

Filtering AF 0.276% ClinGen BA1/BS1 input FAF95, joint · FAF99 0.26%

Overall 0.0096% 155/1,614,230 alleles · rare

Ancestry group	Frequency	1 in
East Asiangrpmax	0.319%	314
Remaining individualsnot grpmax-eligible	0.0016%	62,508
European (non-Finnish)	0.000932%	107,274

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: PSPH
Protein: p.Asp20=
Coding: c.60T>C
MANE Select: NM_004577
dbSNP: rs201376678
Type: single nucleotide variant
Location: chr7:56021153 (GRCh38)
Gene constraint: LOEUF 1.063 · pLI <0.01 · ClinGen HI gene assoc. with recessive phenotype (gnomAD)
Structure: AlphaFold pLDDT 92.88 · 6 PDB
Residue 20: an active site; a binding site; a β-strand

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

Disease context

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

Similar variants

PSPH p.Arg101Ter Likely pathogenic ★★ same condition
PSPH c.422-3A>C Uncertain significance ★★ same condition
PSPH c.570+3A>G Uncertain significance ★★ same condition
PSPH c.570+5G>C Uncertain significance ★★ same condition
PSPH c.*341G>A Uncertain significance ★★ same condition
PSPH p.Asn124Ser Uncertain significance ★★ ⚠ same condition
PSPH p.Asp32Asn Uncertain significance ★★ ⚠ same condition
PSPH p.Gln204His Uncertain significance ★★ ⚠ 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/psph-p-asp20 (accessed [today's date]).

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