Is ASPM p.Lys145fs (c.434del) pathogenic?

ASPM p.Lys145fs (c.434del) is classified Pathogenic in ASPM (ClinVar, Single submitter, 1 submitter; last evaluated 2020-09-05). Absent from gnomAD v4.1; Associated with microcephaly 5, primary, autosomal recessive.

What condition is associated with ASPM p.Lys145fs (c.434del)?

ASPM p.Lys145fs (c.434del) is associated with microcephaly 5, primary, autosomal recessive (ClinVar).

How common is ASPM p.Lys145fs (c.434del) in the general population?

ASPM p.Lys145fs (c.434del) is absent from gnomAD v4.1 (gnomAD).

ASPM p.Lys145fs

c.434del · rs2125114846 · VCV1323530

Pathogenic Single submitter

Classification

Pathogenic

ClinVar

Review

Single submitter ★☆☆☆

ClinVar · 1 submitter

Consequence

frameshift

predicted LoF

gnomAD v4.1

Not reported

no allele count reported in gnomAD v4.1 (AN 1,605,718)

Conditions

microcephaly 5, primary, autosomal recessive

Computational evidence

Protein change
Missense predictors do not apply to this variant type; conservation carries the signal.
Consequence	frameshift	predicted loss-of-function
NMD	predicted	premature termination codon in exon 2 of 28
Splicing
SpliceAI	—	not assessed · substitutions only
Constraint at this position
Conservation	phyloP 2.2	GERP 1.5, phastCons 1

Predicted loss-of-function is descriptive, not an applied PVS1 code.

Population frequency

gnomAD v4.1 · exomes + genomes

No allele count reported in gnomAD v4.1 (AN 1,605,718). 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: ASPM
Protein: p.Lys145fs
Coding: c.434del
MANE Select: NM_018136
dbSNP: rs2125114846
Type: Deletion
Location: chr1:197143964 (GRCh38)
Gene constraint: LOEUF 0.766 · pLI <0.01 · ClinGen HI gene assoc. with recessive phenotype (gnomAD)

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

Disease context

microcephaly 5, primary, autosomal recessive — disease report on Sugi Atlas → Associated genes, phenotypes, clinical trials & treatments

Similar variants

ASPM p.Arg2005fs Pathogenic ★★ same condition
ASPM p.Asn1095fs Likely pathogenic ★★ same condition
ASPM p.Asn324fs Pathogenic/Likely pathogenic ★★ same condition
ASPM p.Asn394fs Pathogenic ★★ same condition
ASPM p.Asp1285fs Pathogenic/Likely pathogenic ★★ same condition
ASPM p.Asp990fs Pathogenic ★★ same condition
ASPM p.Gln2904fs Pathogenic ★★ same condition
ASPM p.Glu2731fs 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/aspm-p-lys145fs (accessed [today's date]).

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