Genetic Variant FAM83B:p.Gly107Val (chr6-54870566-G-T) – ACMG Classification: Likely_pathogenic (6 pts)

Variant summary

Our verdict is Likely pathogenic. Variant got 6 ACMG points: 6P and 0B. PM2PP3_Strong

The NM_001010872.3(FAM83B):c.320G>T(p.Gly107Val) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000558 in 1,613,858 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 32)

Exomes 𝑓: 0.0000048 ( 0 hom. )

Consequence

FAM83B
NM_001010872.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 9.92

Variant links:

Genes affected

FAM83B (HGNC:21357): (family with sequence similarity 83 member B) Enables epidermal growth factor receptor binding activity; phosphatidylinositol 3-kinase binding activity; and protein kinase binding activity. Involved in cell population proliferation and epidermal growth factor receptor signaling pathway. Located in cytoplasm and membrane. [provided by Alliance of Genome Resources, Apr 2022]

FAM83B links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_pathogenic. Variant got 6 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

PP3

MetaRNN computational evidence supports a deleterious effect, 0.958

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
FAM83B	NM_001010872.3 link	c.320G>T	p.Gly107Val	missense_variant	Exon 2 of 5	ENST00000306858.8	NP_001010872.1	Q5T0W9

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
FAM83B	ENST00000306858.8 link	c.320G>T	p.Gly107Val	missense_variant	Exon 2 of 5	1	NM_001010872.3	ENSP00000304078.7		Q5T0W9

Frequencies

GnomAD3 genomes

AF:

0.0000132

AC:

AN:

152050

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000131

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:

0.00000796

AC:

AN:

251126

Hom.:

AF XY:

0.00

AC XY:

AN XY:

135704

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.0000289

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.0000327

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000479

AC:

AN:

1461808

Hom.:

Cov.:

AF XY:

0.00000550

AC XY:

AN XY:

727204

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.0000224

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.0000696

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

AF:

0.0000132

AC:

AN:

152050

Hom.:

Cov.:

AF XY:

0.0000269

AC XY:

AN XY:

74254

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.000131

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

ExAC

AF:

0.00000824

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Oct 09, 2024

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.320G>T (p.G107V) alteration is located in exon 2 (coding exon 1) of the FAM83B gene. This alteration results from a G to T substitution at nucleotide position 320, causing the glycine (G) at amino acid position 107 to be replaced by a valine (V). 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

0.94

BayesDel_addAF

Pathogenic

0.21

BayesDel_noAF

Pathogenic

0.16

CADD

Pathogenic

DANN

Uncertain

1.0

DEOGEN2

Benign

0.30

Eigen

Pathogenic

0.84

Eigen_PC

Pathogenic

0.74

FATHMM_MKL

Pathogenic

1.0

LIST_S2

Uncertain

0.92

M_CAP

Benign

0.082

MetaRNN

Pathogenic

0.96

MetaSVM

Benign

-0.78

MutationAssessor

Pathogenic

3.7

PrimateAI

Uncertain

0.73

PROVEAN

Pathogenic

-8.8

REVEL

Uncertain

0.56

Sift

Pathogenic

0.0

Sift4G

Pathogenic

0.0

Polyphen

1.0

Vest4

0.97

MutPred

0.86

Gain of catalytic residue at G107 (P = 0.1133);

MVP

0.66

MPC

0.35

ClinPred

1.0

GERP RS

5.7

Varity_R

0.97

gMVP

0.89

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