Is CCT5 p.His147Gln (c.441C>G) pathogenic?

CCT5 p.His147Gln (c.441C>G) is classified Uncertain significance in CCT5 (ClinVar, Single submitter, 1 submitter; last evaluated 2025-09-05). AlphaMissense: likely benign (0.2331); Ultra-rare (popmax 0.0233%, amr); Associated with hereditary sensory and autonomic neuropathy with spastic paraplegia.

What condition is associated with CCT5 p.His147Gln (c.441C>G)?

CCT5 p.His147Gln (c.441C>G) is associated with hereditary sensory and autonomic neuropathy with spastic paraplegia (ClinVar).

How common is CCT5 p.His147Gln (c.441C>G) in the general population?

CCT5 p.His147Gln (c.441C>G) is ultra-rare (popmax 0.0233%, amr) (gnomAD).

What do computational predictors say about CCT5 p.His147Gln (c.441C>G)?

AlphaMissense predicts likely benign (score 0.2331) — an in-silico prediction, not a clinical call.

CCT5 p.His147Gln

Q: How is Mutilating hereditary sensory neuropathy with spastic paraplegia inherited?

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

c.441C>G · VCV3716502

Uncertain significance Single submitter

Classification

Uncertain significance

ClinVar

Review

Single submitter ★☆☆☆

ClinVar · 1 submitter

AlphaMissense

likely benign

0.2331 · ACMG-weighted

gnomAD v4.1

Rare

ultra-rare (popmax 0.0233%, amr)

Missense predictors

0/3 damaging

AlphaMissense, REVEL, SaProt

Conditions

hereditary sensory and autonomic neuropathy with spastic paraplegia

Computational evidence

Protein change
AlphaMissense	0.2331	likely benign
REVEL	0.195	benign-leaning
SaProt	LLR -7.10	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 2.7	GERP -0.34, phastCons 1
Regional constraint	o/e 1.47	unconstrained · MANE · 77 bp · p 0.005 · regional, not allelic
Overall
CADD	20.8	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 0.0233% Admixed American · 14/60,002 alleles

Filtering AF 0.0141% ClinGen BA1/BS1 input FAF95, joint · FAF99 0.0112%

Overall 0.00118% 19/1,613,978 alleles · ultra-rare

Ancestry group	Frequency	1 in
Admixed Americangrpmax	0.0233%	4,286
African / African-American	0.00267%	37,460
South Asian	0.0022%	45,538
European (non-Finnish)	8.47e-05%	1,179,981

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: CCT5
Protein: p.His147Gln
Coding: c.441C>G
MANE Select: NM_012073
Type: single nucleotide variant
Location: chr5:10256064 (GRCh38)
Gene constraint: LOEUF 0.235 · pLI 1.00 · ClinGen HI gene assoc. with recessive phenotype (gnomAD)
Structure: AlphaFold pLDDT 89.34 · 75 PDB
Residue 147: a UniProt-annotated variant site (in hsnsp); an α-helix

Full CCT5 gene report on Sugi Atlas → Gene function, pathways, protein structure, interactions & more

Disease context

hereditary sensory and autonomic neuropathy with spastic paraplegia — disease report on Sugi Atlas → Associated genes, phenotypes, clinical trials & treatments

For Mutilating hereditary sensory neuropathy with spastic paraplegia (Orphanet):

Inheritance: Autosomal recessive
Onset: Childhood, Infancy

Similar variants

CCT5 p.His147Arg Uncertain significance ★★ ⚠ same residue
CCT5 c.531-3C>T Uncertain significance ★★ same condition
CCT5 c.*1126T>A Uncertain significance ★★ same condition
CCT5 c.*567G>A Uncertain significance ★★ same condition
CCT5 p.Ala246Val Uncertain significance ★★ ⚠ same condition
CCT5 p.Ala41Gly Uncertain significance ★★ ⚠ same condition
CCT5 p.Ala424Ser Uncertain significance ★★ ⚠ same condition
CCT5 p.Arg142Cys 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/cct5-p-his147gln (accessed [today's date]).

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