Is F5 p.Ser52= (c.156A>G) pathogenic?

F5 p.Ser52= (c.156A>G) is classified Likely benign in F5 (ClinVar, Single submitter, 1 submitter; last evaluated 2023-08-14). Very rare (popmax 0.00667%, afr); Associated with congenital factor V deficiency.

What condition is associated with F5 p.Ser52= (c.156A>G)?

F5 p.Ser52= (c.156A>G) is associated with congenital factor V deficiency (ClinVar).

How common is F5 p.Ser52= (c.156A>G) in the general population?

F5 p.Ser52= (c.156A>G) is very rare (popmax 0.00667%, afr) (gnomAD).

How is Congenital factor V deficiency inherited?

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

F5 p.Ser52=

c.156A>G · rs757375570 · VCV2887607

Likely benign Single submitter

Classification

Likely benign

ClinVar

Review

Single submitter ★☆☆☆

ClinVar · 1 submitter

gnomAD v4.1

Rare

very rare (popmax 0.00667%, afr)

Conditions

congenital factor V deficiency

Computational evidence

Protein change
Missense predictors do not apply to this variant type; conservation carries the signal.
Splicing
SpliceAI	<0.2	all four deltas below 0.2 · T>A here scores Δ0.20 · evaluated, not missing
Constraint at this position
Conservation	phyloP -1.3	GERP -3.8
Overall
CADD	1.49	PHRED · no single calibrated threshold — expert panels disagree

Population frequency

gnomAD v4.1 · exomes + genomes

Grpmax group 0.00667% African / African-American · 5/74,912 alleles

Filtering AF 0.00255% ClinGen BA1/BS1 input FAF95, joint · FAF99 0.00161%

Overall 0.000372% 6/1,614,002 alleles · very rare

Ancestry group	Frequency	1 in
African / African-Americangrpmax	0.00667%	14,982
Remaining individualsnot grpmax-eligible	0.0016%	62,484

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: F5
Protein: p.Ser52=
Coding: c.156A>G
MANE Select: NM_000130
dbSNP: rs757375570
Type: single nucleotide variant
Location: chr1:169586231 (GRCh38)
Gene constraint: LOEUF 0.704 · pLI <0.01 (gnomAD)
Structure: AlphaFold pLDDT 62.57 · 23 PDB
Residue 52: an α-helix; the f5/8 type a 1 domain; the plastocyanin-like 1 domain

Full F5 gene report on Sugi Atlas → Gene function, pathways, protein structure, interactions & more

Disease context

congenital factor V deficiency — disease report on Sugi Atlas → Associated genes, phenotypes, clinical trials & treatments

For Congenital factor V deficiency (Orphanet):

Inheritance: Autosomal recessive
Onset: All ages
Prevalence: 1-9 / 1 000 000 (Europe)

Similar variants

F5 p.Ser52Ter Pathogenic ★ same residue
F5 c.1297-2A>G Pathogenic/Likely pathogenic ★★ same condition
F5 p.Arg1030Ter Pathogenic ★★ same condition
F5 p.Arg146Ter Pathogenic/Likely pathogenic ★★ same condition
F5 p.Arg1621Ter Pathogenic/Likely pathogenic ★★ same condition
F5 p.Arg1634Ter Pathogenic/Likely pathogenic ★★ same condition
F5 p.Arg2102His Pathogenic/Likely pathogenic ★★ same condition
F5 p.Arg740Ter Pathogenic/Likely 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/f5-p-ser52 (accessed [today's date]).

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