Genetic Variant FNBP1:p.Arg489His (chr9-129900510-C-T) – ACMG Classification: Likely_benign (-6 pts)

Variant summary

Our verdict is Likely benign. Variant got -6 ACMG points: 0P and 6B. BP4_ModerateBS2

The NM_015033.3(FNBP1):c.1466G>A(p.Arg489His) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000103 in 1,591,438 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/21 in silico tools predict a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

Frequency

Genomes: 𝑓 0.000053 ( 0 hom., cov: 33)

Exomes 𝑓: 0.00011 ( 0 hom. )

Consequence

FNBP1
NM_015033.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 2.66

Variant links:

Genes affected

FNBP1 (HGNC:17069): (formin binding protein 1) The protein encoded by this gene is a member of the formin-binding-protein family. The protein contains an N-terminal Fer/Cdc42-interacting protein 4 (CIP4) homology (FCH) domain followed by a coiled-coil domain, a proline-rich motif, a second coiled-coil domain, a Rho family protein-binding domain (RBD), and a C-terminal SH3 domain. This protein binds sorting nexin 2 (SNX2), tankyrase (TNKS), and dynamin; an interaction between this protein and formin has not been demonstrated yet in human. [provided by RefSeq, Jul 2008]

FNBP1 links:

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ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -6 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.18830863).

BS2

High AC in GnomAd4 at 8 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
FNBP1	NM_015033.3 link	c.1466G>A	p.Arg489His	missense_variant	Exon 14 of 17	ENST00000446176.7	NP_055848.1	Q96RU3-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
FNBP1	ENST00000446176.7 link	c.1466G>A	p.Arg489His	missense_variant	Exon 14 of 17	1	NM_015033.3	ENSP00000413625.1		Q96RU3-1

Frequencies

GnomAD3 genomes

AF:

0.0000526

AC:

AN:

152196

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000482

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000882

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000531

AC:

AN:

226006

Hom.:

AF XY:

0.0000568

AC XY:

AN XY:

123286

show subpopulations

Gnomad AFR exome

AF:

0.0000727

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.0000737

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000859

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.000108

AC:

156

AN:

1439242

Hom.:

Cov.:

AF XY:

0.000113

AC XY:

AN XY:

715582

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.0000363

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.000136

Gnomad4 OTH exome

AF:

0.0000505

GnomAD4 genome

AF:

0.0000526

AC:

AN:

152196

Hom.:

Cov.:

AF XY:

0.0000269

AC XY:

AN XY:

74340

show subpopulations

Gnomad4 AFR

AF:

0.0000482

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000882

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.000165

Hom.:

Bravo

AF:

0.0000567

ExAC

AF:

0.0000414

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Jan 31, 2025

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.1466G>A (p.R489H) alteration is located in exon 14 (coding exon 14) of the FNBP1 gene. This alteration results from a G to A substitution at nucleotide position 1466, causing the arginine (R) at amino acid position 489 to be replaced by a histidine (H). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.13

BayesDel_addAF

Benign

-0.13

BayesDel_noAF

Benign

-0.23

CADD

Uncertain

DANN

Uncertain

1.0

DEOGEN2

Benign

0.089

T;.;.;.

Eigen

Benign

-0.31

Eigen_PC

Benign

-0.28

FATHMM_MKL

Uncertain

0.81

LIST_S2

Pathogenic

0.99

D;D;D;D

M_CAP

Uncertain

0.092

MetaRNN

Benign

0.19

T;T;T;T

MetaSVM

Benign

-0.50

MutationAssessor

Benign

1.9

L;.;.;.

PrimateAI

Benign

0.39

PROVEAN

Benign

-2.0

N;.;.;N

REVEL

Benign

0.29

Sift

Benign

0.11

T;.;.;T

Sift4G

Benign

0.068

T;T;T;T

Polyphen

0.0090

B;B;.;B

Vest4

0.39

MVP

0.68

MPC

0.46

ClinPred

0.11

GERP RS

4.0

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

Varity_R

0.12

gMVP

0.23

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.0

Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

LitVar

Below is the list of publications found by LitVar. It may be empty.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over