Is AIP p.Ala55Val (c.164C>T) pathogenic?

AIP p.Ala55Val (c.164C>T) is classified Conflicting classifications of pathogenicity in AIP (ClinVar, Conflicting submitters, 3 submitters; last evaluated 2023-10-20). AlphaMissense: likely benign (0.0679); Very rare (popmax 8.47e-05%, nfe); Associated with hereditary neoplastic syndrome.

What condition is associated with AIP p.Ala55Val (c.164C>T)?

AIP p.Ala55Val (c.164C>T) is associated with hereditary neoplastic syndrome, growth hormone secreting pituitary adenoma 1 (ClinVar).

How common is AIP p.Ala55Val (c.164C>T) in the general population?

AIP p.Ala55Val (c.164C>T) is very rare (popmax 8.47e-05%, nfe) (gnomAD).

What do computational predictors say about AIP p.Ala55Val (c.164C>T)?

AlphaMissense predicts likely benign (score 0.0679) — an in-silico prediction, not a clinical call.

AIP p.Ala55Val

c.164C>T · rs1865805899 · VCV1022659

Conflicting classifications of pathogenicity Conflicting submitters

Classification

Conflicting classifications of pathogenicity

ClinVar

Review

Conflicting submitters ★☆☆☆

ClinVar · 3 submitters

AlphaMissense

likely benign

0.0679 · ACMG-weighted

gnomAD v4.1

Rare

very rare (popmax 8.47e-05%, nfe)

Missense predictors

0/3 damaging

AlphaMissense, REVEL, SaProt

Conditions

hereditary neoplastic syndrome

Computational evidence

Protein change
AlphaMissense	0.0679	likely benign
REVEL	0.23	benign-leaning
SaProt	LLR -5.98	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 -2.3	GERP -3.6
Overall
CADD	1.049	PHRED · no single calibrated threshold — expert panels disagree

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

Population frequency

gnomAD v4.1 · exomes + genomes

Grpmax group 8.47e-05% European (non-Finnish) · 1/1,180,046 alleles

Overall 6.84e-05% 1/1,461,754 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: AIP
Protein: p.Ala55Val
Coding: c.164C>T
MANE Select: NM_017900 · reported on NM_003977
dbSNP: rs1865805899
Type: single nucleotide variant
Location: chr11:67487070 (GRCh38)
Structure: AlphaFold pLDDT 70.14 · 81 PDB

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

Disease context

hereditary neoplastic syndrome — disease report on Sugi Atlas → Associated genes, phenotypes, clinical trials & treatments

Also linked: growth hormone secreting pituitary adenoma 1

Similar variants

AIP p.Ala55Thr Conflicting classifications of pathogenicity ★ ⚠ same residue
AIP p.Arg271Trp Pathogenic/Likely pathogenic ★★ same condition
AIP p.Arg304Ter Pathogenic ★★ same condition
AIP p.Arg81Ter Pathogenic ★★ same condition
AIP p.Cys238Tyr Likely pathogenic ★★ same condition
AIP p.Gln126Ter Pathogenic ★★ same condition
AIP p.Gln14Ter Pathogenic ★★ same condition
AIP p.Gln217Ter Pathogenic ★★ 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/aip-p-ala55val (accessed [today's date]).

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