Genetic Variant FAM3D:p.Gly98Asp (chr3-58643691-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_138805.3(FAM3D):c.293G>A(p.Gly98Asp) variant causes a missense change. The variant allele was found at a frequency of 0.0000372 in 1,613,854 control chromosomes in the GnomAD database, with no homozygous occurrence. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

Frequency

Genomes: 𝑓 0.00020 ( 0 hom., cov: 33)

Exomes 𝑓: 0.000021 ( 0 hom. )

Consequence

FAM3D
NM_138805.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 4.91

Variant links:

Genes affected

FAM3D (HGNC:18665): (FAM3 metabolism regulating signaling molecule D) Involved in negative regulation of insulin secretion. Predicted to be located in extracellular region. Predicted to be integral component of membrane. Predicted to be active in extracellular space. [provided by Alliance of Genome Resources, Apr 2022]

FAM3D links:

FAM3D-AS1 (HGNC:41276): (FAM3D antisense RNA 1)

FAM3D-AS1 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
FAM3D	NM_138805.3 link	c.293G>A	p.Gly98Asp	missense_variant	Exon 6 of 10	ENST00000358781.7	NP_620160.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
FAM3D	ENST00000358781.7 link	c.293G>A	p.Gly98Asp	missense_variant	Exon 6 of 10	1	NM_138805.3	ENSP00000351632.2		Q96BQ1

Frequencies

GnomAD3 genomes

AF:

0.000197

AC:

AN:

152200

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000724

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:

0.00

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000557

AC:

AN:

251494

Hom.:

AF XY:

0.0000662

AC XY:

AN XY:

135920

show subpopulations

Gnomad AFR exome

AF:

0.000738

Gnomad AMR exome

AF:

0.0000578

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000205

AC:

AN:

1461536

Hom.:

Cov.:

AF XY:

0.0000179

AC XY:

AN XY:

727072

show subpopulations

Gnomad4 AFR exome

AF:

0.000508

Gnomad4 AMR exome

AF:

0.0000671

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00000629

Gnomad4 OTH exome

AF:

0.0000166

GnomAD4 genome

AF:

0.000197

AC:

AN:

152318

Hom.:

Cov.:

AF XY:

0.000161

AC XY:

AN XY:

74472

show subpopulations

Gnomad4 AFR

AF:

0.000722

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:

0.00

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.0000658

Hom.:

Bravo

AF:

0.000174

ESP6500AA

AF:

0.000227

AC:

ESP6500EA

AF:

0.00

AC:

ExAC

AF:

0.0000412

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Dec 25, 2024

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.293G>A (p.G98D) alteration is located in exon 6 (coding exon 5) of the FAM3D gene. This alteration results from a G to A substitution at nucleotide position 293, causing the glycine (G) at amino acid position 98 to be replaced by an aspartic acid (D). 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

Pathogenic

0.60

BayesDel_addAF

Benign

-0.31

BayesDel_noAF

Benign

-0.28

CADD

Pathogenic

DANN

Uncertain

1.0

DEOGEN2

Benign

0.30

T;T;T;.

Eigen

Uncertain

0.61

Eigen_PC

Uncertain

0.52

FATHMM_MKL

Uncertain

0.95

LIST_S2

Uncertain

0.96

D;D;D;D

M_CAP

Benign

0.028

MetaRNN

Uncertain

0.45

T;T;T;T

MetaSVM

Benign

-0.94

MutationAssessor

Uncertain

2.8

M;.;.;.

PrimateAI

Uncertain

0.74

PROVEAN

Pathogenic

-6.7

D;D;D;D

REVEL

Uncertain

0.31

Sift

Uncertain

0.0020

D;D;T;D

Sift4G

Uncertain

0.0050

D;.;D;.

Polyphen

1.0

D;.;.;.

Vest4

0.72

MVP

0.47

MPC

0.45

ClinPred

0.55

GERP RS

3.7

Varity_R

0.69

gMVP

0.86

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.010

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