Is CILP p.Arg448Cys (c.1342C>T) pathogenic?

CILP p.Arg448Cys (c.1342C>T) is classified Uncertain significance in CILP (ClinVar, Single submitter, 1 submitter; last evaluated 2023-07-14). AlphaMissense: likely benign (0.3062); Ultra-rare (popmax 0.0223%, eas).

How common is CILP p.Arg448Cys (c.1342C>T) in the general population?

CILP p.Arg448Cys (c.1342C>T) is ultra-rare (popmax 0.0223%, eas) (gnomAD).

What do computational predictors say about CILP p.Arg448Cys (c.1342C>T)?

AlphaMissense predicts likely benign (score 0.3062) — an in-silico prediction, not a clinical call.

CILP p.Arg448Cys

c.1342C>T · rs201015610 · VCV2611725

Uncertain significance Single submitter

Classification

Uncertain significance

ClinVar

Review

Single submitter ★☆☆☆

ClinVar · 1 submitter

AlphaMissense

likely benign

0.3062 · ACMG-weighted

gnomAD v4.1

Rare

ultra-rare (popmax 0.0223%, eas)

Missense predictors

0/3 damaging

AlphaMissense, REVEL, SaProt

Computational evidence

Protein change
AlphaMissense	0.3062	likely benign
REVEL	0.106	moderately benign-leaning
SaProt	LLR -6.33	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 4.8	GERP 0.81, phastCons 1
Regional constraint	o/e 0.97	unconstrained · MANE · 13 kb · p 0.19 · 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 0.0223% East Asian · 10/44,888 alleles

Filtering AF 0.012% ClinGen BA1/BS1 input FAF95, joint · FAF99 0.00916%

Overall 0.00161% 26/1,613,830 alleles · ultra-rare

Ancestry group	Frequency	1 in
East Asiangrpmax	0.0223%	4,489
Remaining individualsnot grpmax-eligible	0.0048%	20,829
South Asian	0.0022%	45,542
African / African-American	0.00133%	74,908
European (non-Finnish)	0.000847%	118,004

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: CILP
Protein: p.Arg448Cys
Coding: c.1342C>T
MANE Select: NM_003613
dbSNP: rs201015610
Type: single nucleotide variant
Location: chr15:65198944 (GRCh38)
Gene constraint: LOEUF 1.077 · pLI <0.01 (gnomAD)
Structure: AlphaFold pLDDT 80.30

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

Similar variants

CILP p.Arg448His Benign same residue
CILP p.Leu1064= Benign ★★ same type
CILP p.Ala1003Asp Uncertain significance ★ ⚠ same type
CILP p.Ala102Val Uncertain significance ★ ⚠ same type
CILP p.Ala1053Thr Uncertain significance ★ ⚠ same type
CILP p.Ala1091Thr Uncertain significance ★ ⚠ same type
CILP p.Ala1091Val Uncertain significance ★ ⚠ same type
CILP p.Ala1114Gly Uncertain significance ★ ⚠ same type

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/cilp-p-arg448cys (accessed [today's date]).

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