Is CIT p.His970Arg (c.2909A>G) pathogenic?

CIT p.His970Arg (c.2909A>G) is classified Uncertain significance in CIT (ClinVar, Single submitter, 1 submitter; last evaluated 2025-12-11). AlphaMissense: likely pathogenic (0.6095); Very rare (popmax 0.000657%); Associated with Inborn genetic diseases.

What condition is associated with CIT p.His970Arg (c.2909A>G)?

CIT p.His970Arg (c.2909A>G) is associated with Inborn genetic diseases (ClinVar).

How common is CIT p.His970Arg (c.2909A>G) in the general population?

CIT p.His970Arg (c.2909A>G) is very rare (popmax 0.000657%) (gnomAD).

What do computational predictors say about CIT p.His970Arg (c.2909A>G)?

AlphaMissense predicts likely pathogenic (score 0.6095) — an in-silico prediction, not a clinical call.

CIT p.His970Arg

c.2909A>G · VCV4615875

Uncertain significance Single submitter

Classification

Uncertain significance

ClinVar

Review

Single submitter ★☆☆☆

ClinVar · 1 submitter

AlphaMissense

likely pathogenic

0.6095 · ACMG-weighted

gnomAD v4.1

Rare

very rare (popmax 0.000657%)

Missense predictors

1/3 damaging

AlphaMissense, REVEL, SaProt

Conditions

Inborn genetic diseases

Computational evidence

Protein change
AlphaMissense	0.6095	likely pathogenic
REVEL	0.248	benign-leaning
SaProt	LLR -4.89	tolerated
⇒ AlphaMissense calls this damaging; REVEL and SaProt do not.
Splicing
SpliceAI	—	not assessed · no allele here is in the release
Constraint at this position
Conservation	phyloP 7.9	GERP 0.87, phastCons 1
Regional constraint	o/e 0.64	unconstrained · MANE · 55 kb · p 2.1e-24 · regional, not allelic
Overall
CADD	23.8	PHRED · no single calibrated threshold — expert panels disagree

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

⚠ Isoform check: AlphaMissense numbered on a different transcript (AM H928R vs ClinVar H970R) — verify the residue.

Population frequency

gnomAD v4.1 · exomes + genomes

Grpmax group 0.000657%

Overall 0.000657% 1/152,210 alleles · very rare

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: CIT
Protein: p.His970Arg
Coding: c.2909A>G
MANE Select: NM_001206999
Type: single nucleotide variant
Location: chr12:119742460 (GRCh38)
Gene constraint: LOEUF 0.353 · pLI 1.00 (gnomAD)
Structure: AlphaFold pLDDT 69.75

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-his970arg (accessed [today's date]).

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