Variant 20-56525946-G-A details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_001012971.4(FAM209A):c.392G>A(p.Arg131Gln) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000229 in 1,614,134 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/20 in silico tools predict 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: 0.000021 ( 0 hom. )

Consequence

FAM209A
NM_001012971.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.761

Variant links:

Genes affected

FAM209A (HGNC:16100): (family with sequence similarity 209 member A) Located in extracellular exosome and nucleus. [provided by Alliance of Genome Resources, Apr 2022]

FAM209A links:

GCNT7 (HGNC:16099): (glucosaminyl (N-acetyl) transferase family member 7) Predicted to enable acetylglucosaminyltransferase activity. Predicted to be involved in protein glycosylation. Predicted to be located in Golgi membrane. Predicted to be integral component of membrane. [provided by Alliance of Genome Resources, Apr 2022]

GCNT7 links:

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ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.045751184).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
FAM209A	NM_001012971.4 link	c.392G>A	p.Arg131Gln	missense_variant	2/2	ENST00000371328.5	NP_001012989.2	Q5JX71
FAM209A	XM_047439964.1 link	c.392G>A	p.Arg131Gln	missense_variant	2/5		XP_047295920.1
FAM209A	XM_047439965.1 link	c.392G>A	p.Arg131Gln	missense_variant	2/6		XP_047295921.1
GCNT7	NR_160308.1 link	n.-21C>T		upstream_gene_variant

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	UniProt
FAM209A	ENST00000371328.5 link	c.392G>A	p.Arg131Gln	missense_variant	2/2	1	NM_001012971.4	ENSP00000360379.4	Q5JX71
FAM209A	ENST00000481560.1 link	n.537G>A		non_coding_transcript_exon_variant	4/4	5
GCNT7	ENST00000243913.8 link	c.-1093C>T		upstream_gene_variant		2		ENSP00000243913.4	Q6ZNI0

Frequencies

GnomAD3 genomes

AF:

0.0000460

AC:

AN:

152124

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000966

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.0000655

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.000192

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000147

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000318

AC:

AN:

251484

Hom.:

AF XY:

0.0000368

AC XY:

AN XY:

135916

show subpopulations

Gnomad AFR exome

AF:

0.000123

Gnomad AMR exome

AF:

0.0000578

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.000109

Gnomad SAS exome

AF:

0.0000327

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00000879

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000205

AC:

AN:

1461894

Hom.:

Cov.:

AF XY:

0.0000248

AC XY:

AN XY:

727248

show subpopulations

Gnomad4 AFR exome

AF:

0.0000299

Gnomad4 AMR exome

AF:

0.0000447

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.000277

Gnomad4 SAS exome

AF:

0.0000812

Gnomad4 FIN exome

AF:

0.0000187

Gnomad4 NFE exome

AF:

0.00000629

Gnomad4 OTH exome

AF:

0.0000166

GnomAD4 genome

AF:

0.0000460

AC:

AN:

152240

Hom.:

Cov.:

AF XY:

0.0000269

AC XY:

AN XY:

74434

show subpopulations

Gnomad4 AFR

AF:

0.0000963

Gnomad4 AMR

AF:

0.0000654

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.000193

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000147

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.0000712

Hom.:

Bravo

AF:

0.0000680

ESP6500AA

AF:

0.000454

AC:

ESP6500EA

AF:

0.00

AC:

ExAC

AF:

0.0000494

AC:

Asia WGS

AF:

0.000289

AC:

AN:

3478

EpiCase

AF:

0.0000545

EpiControl

AF:

0.00

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Nov 11, 2024

The c.392G>A (p.R131Q) alteration is located in exon 2 (coding exon 2) of the FAM209A gene. This alteration results from a G to A substitution at nucleotide position 392, causing the arginine (R) at amino acid position 131 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

0.078

BayesDel_addAF

Benign

-0.39

BayesDel_noAF

Benign

-0.53

CADD

Benign

DANN

Benign

0.94

DEOGEN2

Benign

0.029

Eigen

Benign

-0.81

Eigen_PC

Benign

-0.75

FATHMM_MKL

Benign

0.25

LIST_S2

Benign

0.68

M_CAP

Benign

0.0032

MetaRNN

Benign

0.046

MetaSVM

Benign

-1.0

MutationAssessor

Benign

1.3

PROVEAN

Benign

-2.2

REVEL

Benign

0.043

Sift

Benign

0.16

Sift4G

Benign

0.11

Polyphen

0.17

Vest4

0.21

MVP

0.10

MPC

0.25

ClinPred

0.018

GERP RS

1.2

Varity_R

0.057

gMVP

0.12

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