Genetic Variant FAM117A:p.Arg205Gln (chr17-49719854-C-T) – ACMG Classification: Uncertain_significance (2 pts)

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The NM_030802.4(FAM117A):c.614G>A(p.Arg205Gln) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000224 in 1,607,482 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000046 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000020 ( 0 hom. )

Consequence

FAM117A
NM_030802.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.65

Variant links:

Genes affected

FAM117A (HGNC:24179): (family with sequence similarity 117 member A)

FAM117A links:

ENSG00000250751 (HGNC:):

ENSG00000250751 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
FAM117A	NM_030802.4 link	c.614G>A	p.Arg205Gln	missense_variant	Exon 5 of 8	ENST00000240364.7	NP_110429.1	Q9C073-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
FAM117A	ENST00000240364.7 link	c.614G>A	p.Arg205Gln	missense_variant	Exon 5 of 8	1	NM_030802.4	ENSP00000240364.2		Q9C073-1

Frequencies

GnomAD3 genomes

AF:

0.0000460

AC:

AN:

152158

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000241

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.000385

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000588

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000454

AC:

AN:

242386

Hom.:

AF XY:

0.0000380

AC XY:

AN XY:

131522

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.000456

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000270

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000199

AC:

AN:

1455206

Hom.:

Cov.:

AF XY:

0.0000221

AC XY:

AN XY:

724032

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.000356

Gnomad4 SAS exome

AF:

0.0000352

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00000721

Gnomad4 OTH exome

AF:

0.0000665

GnomAD4 genome

AF:

0.0000460

AC:

AN:

152276

Hom.:

Cov.:

AF XY:

0.0000537

AC XY:

AN XY:

74454

show subpopulations

Gnomad4 AFR

AF:

0.0000241

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.000386

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000588

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.0000547

Hom.:

Bravo

AF:

0.0000416

TwinsUK

AF:

0.00

AC:

ALSPAC

AF:

0.000259

AC:

ExAC

AF:

0.0000412

AC:

Asia WGS

AF:

0.000289

AC:

AN:

3478

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Sep 26, 2023

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.614G>A (p.R205Q) alteration is located in exon 5 (coding exon 5) of the FAM117A gene. This alteration results from a G to A substitution at nucleotide position 614, causing the arginine (R) at amino acid position 205 to be replaced by a glutamine (Q). 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

0.11

BayesDel_addAF

Benign

-0.31

BayesDel_noAF

Benign

-0.35

CADD

Pathogenic

DANN

Pathogenic

1.0

DEOGEN2

Benign

0.047

T;T;T

Eigen

Uncertain

0.33

Eigen_PC

Uncertain

0.32

FATHMM_MKL

Uncertain

0.90

LIST_S2

Benign

0.80

T;T;T

M_CAP

Benign

0.0095

MetaRNN

Benign

0.057

T;T;T

MetaSVM

Benign

-0.79

MutationAssessor

Uncertain

2.1

M;.;.

PrimateAI

Uncertain

0.58

PROVEAN

Benign

-0.99

N;N;N

REVEL

Benign

0.11

Sift

Benign

0.16

T;T;T

Sift4G

Benign

0.18

T;.;.

Polyphen

1.0

D;.;.

Vest4

0.30

MutPred

0.22

Gain of sheet (P = 0.0827);.;.;

MVP

0.055

MPC

1.4

ClinPred

0.32

GERP RS

4.1

Varity_R

0.066

gMVP

0.31

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.24

Details are displayed if max score is > 0.2

DS_AG_spliceai

0.24

Position offset: -22

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