Is F5 p.Lys414= (c.1242A>G) pathogenic?

F5 p.Lys414= (c.1242A>G) is classified Benign/Likely benign in F5 (ClinVar, Multiple submitters, 6 submitters; last evaluated 2026-02-04). Common (popmax 10.1%, sas) — too common for a highly-penetrant pathogenic allele; Associated with congenital factor V deficiency.

What condition is associated with F5 p.Lys414= (c.1242A>G)?

F5 p.Lys414= (c.1242A>G) is associated with congenital factor V deficiency, thrombophilia due to activated protein C resistance (ClinVar).

How is Congenital factor V deficiency inherited?

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

F5 p.Lys414=

Q: How common is F5 p.Lys414= (c.1242A>G) in the general population?

F5 p.Lys414= (c.1242A>G) is common (popmax 10.1%, sas) — too common for a highly-penetrant pathogenic allele (gnomAD).

c.1242A>G · rs6035 · VCV255189

Benign/Likely benign Multiple submitters

Classification

Benign/Likely benign

ClinVar

Review

Multiple submitters ★★☆☆

ClinVar · 6 submitters

gnomAD v4.1

Common

common (popmax 10.1%, sas) — too common for a highly-penetrant pathogenic allele

Conditions

congenital factor V deficiency

Computational evidence

Protein change
Missense predictors do not apply to this variant type; conservation carries the signal.
Splicing
SpliceAI	—	not assessed · no allele here is in the release
Constraint at this position
Conservation	phyloP -0.22	GERP -1.9
Overall
CADD	5.402	PHRED · no single calibrated threshold — expert panels disagree

Population frequency

gnomAD v4.1 · exomes + genomes

Grpmax group 10.1% South Asian · 9,164/91,056 alleles

Filtering AF 9.89% ClinGen BA1/BS1 input FAF95, joint · FAF99 9.82%

Overall 8.39% 135,297/1,613,148 alleles · common

Ancestry group	Frequency	1 in
Ashkenazi Jewishnot grpmax-eligible	15.2%	7
South Asiangrpmax	10.1%	10
Admixed American	10%	10
African / African-American	9.44%	11
Remaining individualsnot grpmax-eligible	8.83%	11
European (non-Finnish)	8.15%	12
Middle Eastern	8.03%	12
East Asian	5.97%	17
Amishnot grpmax-eligible	5.92%	17
Finnishnot grpmax-eligible	5.79%	17

Ashkenazi Jewish shows a higher raw frequency than the grpmax group above it. gnomAD excludes bottlenecked groups — Finnish, Ashkenazi Jewish, Amish and “Remaining individuals” — from grpmax, because founder effects make their frequencies unrepresentative for filtering. The table is sorted by frequency, so an excluded group can sit above the grpmax row.

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.Lys414=
Coding: c.1242A>G
MANE Select: NM_000130
dbSNP: rs6035
Type: single nucleotide variant
Location: chr1:169552611 (GRCh38)
Gene constraint: LOEUF 0.704 · pLI <0.01 (gnomAD)
Structure: AlphaFold pLDDT 62.57 · 23 PDB
Residue 414: the f5/8 type a 2 domain; the plastocyanin-like 3 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

Also linked: thrombophilia due to activated protein C resistance

For Congenital factor V deficiency (Orphanet):

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

Similar variants

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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
F5 p.Asp96His 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-lys414 (accessed [today's date]).

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