Is CIT p.Pro224Ser (c.670C>T) pathogenic?

CIT p.Pro224Ser (c.670C>T) is classified Uncertain significance in CIT (ClinVar, Single submitter, 1 submitter; last evaluated 2024-08-28). AlphaMissense: likely pathogenic (0.8892); Absent from gnomAD v4.1; Associated with Inborn genetic diseases.

What condition is associated with CIT p.Pro224Ser (c.670C>T)?

CIT p.Pro224Ser (c.670C>T) is associated with Inborn genetic diseases (ClinVar).

How common is CIT p.Pro224Ser (c.670C>T) in the general population?

CIT p.Pro224Ser (c.670C>T) is absent from gnomAD v4.1 (gnomAD).

What do computational predictors say about CIT p.Pro224Ser (c.670C>T)?

AlphaMissense predicts likely pathogenic (score 0.8892) — an in-silico prediction, not a clinical call.

CIT p.Pro224Ser

c.670C>T · VCV3493092

Uncertain significance Single submitter

Classification

Uncertain significance

ClinVar

Review

Single submitter ★☆☆☆

ClinVar · 1 submitter

AlphaMissense

likely pathogenic

0.8892 · ACMG-weighted

gnomAD v4.1

Absent

absent from gnomAD v4.1

Missense predictors

3/3 damaging

AlphaMissense, REVEL, SaProt

Conditions

Inborn genetic diseases

Computational evidence

Protein change
AlphaMissense	0.8892	likely pathogenic
REVEL	0.706	pathogenic-leaning
SaProt	LLR -13.53	damaging
⇒ AlphaMissense, REVEL and SaProt all call this damaging.
Splicing
SpliceAI	—	not assessed · no allele here is in the release
Constraint at this position
Conservation	phyloP 9.9	GERP 2.1, phastCons 1
Regional constraint	o/e 0.96	unconstrained · MANE · 91 kb · p 0.38 · regional, not allelic
Overall
CADD	29.2	PHRED · no single calibrated threshold — expert panels disagree

ClinVar classifies this uncertain; the computational predictors unanimously lean damaging — 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

Absent from gnomAD v4.1. Not observed in any sequenced alleles — a rarity signal (ACMG PM2-supporting), not evidence of pathogenicity on its own.

Variant & gene context

Gene: CIT
Protein: p.Pro224Ser
Coding: c.670C>T
MANE Select: NM_001206999
Type: single nucleotide variant
Location: chr12:119832854 (GRCh38)
Gene constraint: LOEUF 0.353 · pLI 1.00 (gnomAD)
Structure: AlphaFold pLDDT 69.75
Residue 224: the protein kinase domain

Full CIT 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

CIT p.Arg1178Ter Pathogenic ★★ same condition
CIT c.4168+5G>A Uncertain significance ★★ same condition
CIT p.Ala1527Val Uncertain significance ★★ ⚠ same condition
CIT p.Ala495Ser Uncertain significance ★★ ⚠ same condition
CIT p.Ala8Val Uncertain significance ★★ ⚠ same condition
CIT p.Arg100Gly Uncertain significance ★★ ⚠ same condition
CIT p.Arg1469Cys Uncertain significance ★★ ⚠ same condition
CIT p.Arg1861Cys 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/cit-p-pro224ser (accessed [today's date]).

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