5-157342907-C-A

Variant names:

Variant summary

Our verdict is Likely benign. The variant received -4 ACMG points: 0P and 4B. BP4_Strong

The NM_001001343.4(FNDC9):c.630G>T(p.Arg210Ser) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000186 in 1,614,118 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 16/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★). Another nucleotide change resulting in the same amino acid substitution has been previously reported as Likely benign in ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R210K) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.00019 ( 0 hom., cov: 33)

Exomes 𝑓: 0.00019 ( 0 hom. )

Consequence

FNDC9
NM_001001343.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: -0.347

Variant links:

Genes affected

FNDC9 (HGNC:33547): (fibronectin type III domain containing 9) Predicted to be integral component of membrane. [provided by Alliance of Genome Resources, Apr 2022]

FNDC9 links:

ENSG00000285868 (HGNC:):

ENSG00000285868 links:

CYFIP2 (HGNC:13760): (cytoplasmic FMR1 interacting protein 2) Predicted to enable small GTPase binding activity. Involved in activation of cysteine-type endopeptidase activity; apoptotic process; and cell-cell adhesion. Located in perinuclear region of cytoplasm and synapse. Part of SCAR complex. Implicated in developmental and epileptic encephalopathy 65. [provided by Alliance of Genome Resources, Apr 2022]

CYFIP2 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -4 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.04324439).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
FNDC9	NM_001001343.4 link	c.630G>T	p.Arg210Ser	missense_variant	Exon 2 of 2	ENST00000312349.5	NP_001001343.2	Q8TBE3
CYFIP2	NM_001037333.3 link	c.2673+1750C>A		intron_variant	Intron 23 of 30	ENST00000620254.5	NP_001032410.1	Q96F07-2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
FNDC9	ENST00000312349.5 link	c.630G>T	p.Arg210Ser	missense_variant	Exon 2 of 2	1	NM_001001343.4	ENSP00000310594.4	Q8TBE3
ENSG00000285868	ENST00000519499.2 link	c.630G>T	p.Arg210Ser	missense_variant	Exon 6 of 6	3		ENSP00000496943.1
CYFIP2	ENST00000620254.5 link	c.2673+1750C>A		intron_variant	Intron 23 of 30	1	NM_001037333.3	ENSP00000479968.1	Q96F07-2

Frequencies

GnomAD3 genomes

AF:

0.000191

AC:

AN:

152226

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000121

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000589

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:

0.000220

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.000116

AC:

AN:

250732

AF XY:

0.000155

show subpopulations

Gnomad AFR exome

AF:

0.000124

Gnomad AMR exome

AF:

0.000174

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.0000544

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.000168

Gnomad OTH exome

AF:

0.000164

GnomAD4 exome

AF:

0.000185

AC:

271

AN:

1461774

Hom.:

Cov.:

AF XY:

0.000193

AC XY:

140

AN XY:

727180

show subpopulations

African (AFR)

AF:

0.0000597

AC:

AN:

33480

American (AMR)

AF:

0.000201

AC:

AN:

44704

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26122

East Asian (EAS)

AF:

0.0000252

AC:

AN:

39700

South Asian (SAS)

AF:

0.0000232

AC:

AN:

86238

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53410

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5768

European-Non Finnish (NFE)

AF:

0.000226

AC:

251

AN:

1111962

Other (OTH)

AF:

0.0000994

AC:

AN:

60390

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.489

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

AF:

0.000190

AC:

AN:

152344

Hom.:

Cov.:

AF XY:

0.000255

AC XY:

AN XY:

74490

show subpopulations

African (AFR)

AF:

0.000120

AC:

AN:

41588

American (AMR)

AF:

0.000588

AC:

AN:

15310

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3472

East Asian (EAS)

AF:

0.00

AC:

AN:

5182

South Asian (SAS)

AF:

0.00

AC:

AN:

4830

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10620

Middle Eastern (MID)

AF:

0.00

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.000221

AC:

AN:

68022

Other (OTH)

AF:

0.00

AC:

AN:

2114

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.477

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Alfa

AF:

0.0000718

Hom.:

Bravo

AF:

0.000178

TwinsUK

AF:

0.00

AC:

ALSPAC

AF:

0.000519

AC:

ESP6500AA

AF:

0.00

AC:

ESP6500EA

AF:

0.000116

AC:

ExAC

AF:

0.0000494

AC:

EpiCase

AF:

0.000273

EpiControl

AF:

0.000178

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Mar 26, 2025

Ambry Genetics

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

The c.630G>T (p.R210S) alteration is located in exon 2 (coding exon 1) of the FNDC9 gene. This alteration results from a G to T substitution at nucleotide position 630, causing the arginine (R) at amino acid position 210 to be replaced by a serine (S). 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

-0.50

BayesDel_noAF

Benign

-0.66

CADD

Benign

7.9

(source)

DANN

Benign

0.94

DEOGEN2

Benign

0.0010

.;T

Eigen

Benign

-1.5

Eigen_PC

Benign

-1.5

FATHMM_MKL

Benign

0.10

LIST_S2

Benign

0.46

T;.

M_CAP

Benign

0.019

MetaRNN

Benign

0.043

T;T

MetaSVM

Benign

-1.1

MutationAssessor

Benign

0.97

.;L

PhyloP100

-0.35

PrimateAI

Benign

0.31

PROVEAN

Benign

-0.70

.;N

REVEL

Benign

0.043

Sift

Uncertain

0.012

.;D

Sift4G

Uncertain

0.023

.;D

Polyphen

0.013

.;B

Vest4

0.073

MVP

0.014

MPC

0.087

ClinPred

0.030

GERP RS

-2.3

Varity_R

0.10

gMVP

0.29

Mutation Taster

=99/1

polymorphism

(source)

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

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5-157342907-C-A

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over