Is CAMSAP1 p.Arg1601His (c.4802G>A) pathogenic?

CAMSAP1 p.Arg1601His (c.4802G>A) is classified Uncertain significance in CAMSAP1 (ClinVar, Single submitter, 1 submitter; last evaluated 2024-09-27). AlphaMissense: likely benign (0.1644); Very rare (popmax 0.00322%, nfe); Associated with Inborn genetic diseases.

What condition is associated with CAMSAP1 p.Arg1601His (c.4802G>A)?

CAMSAP1 p.Arg1601His (c.4802G>A) is associated with Inborn genetic diseases (ClinVar).

How common is CAMSAP1 p.Arg1601His (c.4802G>A) in the general population?

CAMSAP1 p.Arg1601His (c.4802G>A) is very rare (popmax 0.00322%, nfe) (gnomAD).

What do computational predictors say about CAMSAP1 p.Arg1601His (c.4802G>A)?

AlphaMissense predicts likely benign (score 0.1644) — an in-silico prediction, not a clinical call.

CAMSAP1 p.Arg1601His

c.4802G>A · VCV3484527

Uncertain significance Single submitter

Classification

Uncertain significance

ClinVar

Review

Single submitter ★☆☆☆

ClinVar · 1 submitter

AlphaMissense

likely benign

0.1644 · ACMG-weighted

gnomAD v4.1

Rare

very rare (popmax 0.00322%, nfe)

Missense predictors

0/3 damaging

AlphaMissense, REVEL, SaProt

Conditions

Inborn genetic diseases

Computational evidence

Protein change
AlphaMissense	0.1644	likely benign
REVEL	0.071	moderately benign-leaning
SaProt	LLR -8.05	tolerated
⇒ AlphaMissense, REVEL and SaProt all call this tolerated.
Splicing
SpliceAI	—	not assessed · no allele here is in the release
Constraint at this position
Conservation	phyloP 2.6	GERP 0.53, phastCons 0.99
Regional constraint	o/e 0.71	unconstrained · MANE · 4,632 bp · p 4.8e-05 · regional, not allelic
Overall
CADD	21.4	PHRED · no single calibrated threshold — expert panels disagree

ClinVar classifies this uncertain; the computational predictors unanimously lean tolerated — a triage signal, not a reclassification

AlphaMissense carries the ACMG weight for missense; REVEL and SaProt are independent agreement signals.

Population frequency

gnomAD v4.1 · exomes + genomes

Grpmax group 0.00322% European (non-Finnish) · 38/1,178,562 alleles

Filtering AF 0.0024% ClinGen BA1/BS1 input FAF95, joint · FAF99 0.0021%

Overall 0.00261% 42/1,611,560 alleles · very rare

Ancestry group	Frequency	1 in
European (non-Finnish)grpmax	0.00322%	31,015
South Asian	0.00221%	45,294
Admixed American	0.00167%	59,808
Remaining individualsnot grpmax-eligible	0.0016%	62,392

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: CAMSAP1
Protein: p.Arg1601His
Coding: c.4802G>A
MANE Select: NM_015447
Type: single nucleotide variant
Location: chr9:135811316 (GRCh38)
Gene constraint: LOEUF 0.544 · pLI <0.01 (gnomAD)
Structure: AlphaFold pLDDT 55.21 · 4 PDB
Residue 1601: a UniProt-annotated variant site (in cdcbm12)

Full CAMSAP1 gene report on Sugi Atlas → Gene function, pathways, protein structure, interactions & more

Disease context

Inborn genetic diseases — disease report on Sugi Atlas → Associated genes, phenotypes, clinical trials & treatments

Similar variants

CAMSAP1 p.Leu29Met Uncertain significance ★★ ⚠ same condition
CAMSAP1 c.4387+6G>A Uncertain significance ★ same condition
CAMSAP1 p.Ala1105Val Uncertain significance ★ ⚠ same condition
CAMSAP1 p.Ala1243Val Uncertain significance ★ ⚠ same condition
CAMSAP1 p.Ala1323Val Uncertain significance ★ ⚠ same condition
CAMSAP1 p.Ala1405Thr Uncertain significance ★ ⚠ same condition
CAMSAP1 p.Ala1405Val Uncertain significance ★ ⚠ same condition
CAMSAP1 p.Ala1452Gly 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/camsap1-p-arg1601his (accessed [today's date]).

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