Genetic Variant FAM86B2:p.Val221Glu (chr8-12428713-A-T) – ACMG Classification: Uncertain_significance (4 pts)

Variant summary

Our verdict is Uncertain significance. Variant got 4 ACMG points: 4P and 0B. PM2PP3_Moderate

The NM_001137610.3(FAM86B2):c.662T>A(p.Val221Glu) variant causes a missense change. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a pathogenic outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

Frequency

Genomes: 𝑓 0.0 ( 0 hom., cov: 21)

Failed GnomAD Quality Control

Consequence

FAM86B2
NM_001137610.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 5.73

Variant links:

Genes affected

FAM86B2 (HGNC:32222): (family with sequence similarity 86 member B2) Predicted to enable methyltransferase activity. Predicted to be involved in methylation. Part of protein-containing complex. [provided by Alliance of Genome Resources, Apr 2022]

FAM86B2 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 4 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

PP3

MetaRNN computational evidence supports a deleterious effect, 0.896

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
FAM86B2	NM_001137610.3 link	c.662T>A	p.Val221Glu	missense_variant	Exon 6 of 8	ENST00000262365.9	NP_001131082.1	P0C5J1
FAM86B2	NR_148876.2 link	n.431+268T>A		intron_variant	Intron 4 of 5
FAM86B2	NR_148877.2 link	n.350+268T>A		intron_variant	Intron 3 of 4
FAM86B2	NR_148878.2 link	n.631+268T>A		intron_variant	Intron 5 of 6

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
FAM86B2	ENST00000262365.9 link	c.662T>A	p.Val221Glu	missense_variant	Exon 6 of 8	5	NM_001137610.3	ENSP00000262365.4		P0C5J1

Frequencies

GnomAD3 genomes

AF:

0.00

AC:

AN:

133156

Hom.:

Cov.:

FAILED QC

Gnomad AFR

AF:

0.00

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

GnomAD4 exome

Cov.:

GnomAD4 genome

Data not reliable, filtered out with message: AC0;AS_VQSR

AF:

0.00

AC:

AN:

133156

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

64260

Gnomad4 AFR

AF:

0.00

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

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Dec 31, 2024

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.662T>A (p.V221E) alteration is located in exon 6 (coding exon 6) of the FAM86B2 gene. This alteration results from a T to A substitution at nucleotide position 662, causing the valine (V) at amino acid position 221 to be replaced by a glutamic acid (E). 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

Uncertain

0.41

BayesDel_addAF

Pathogenic

0.21

BayesDel_noAF

Uncertain

0.070

CADD

Uncertain

DANN

Uncertain

0.98

DEOGEN2

Benign

0.18

T;.

Eigen

Uncertain

0.30

Eigen_PC

Benign

0.049

FATHMM_MKL

Uncertain

0.92

LIST_S2

Benign

0.81

T;T

M_CAP

Benign

0.0099

MetaRNN

Pathogenic

0.90

D;D

MetaSVM

Benign

-1.0

MutationAssessor

Pathogenic

3.9

H;.

PrimateAI

Uncertain

0.67

PROVEAN

Pathogenic

-4.5

D;D

REVEL

Uncertain

0.36

Sift

Pathogenic

0.0

D;D

Sift4G

Uncertain

0.0030

D;D

Polyphen

1.0

D;.

Vest4

0.81

MutPred

0.74

Gain of disorder (P = 0.0103);.;

MVP

0.57

MPC

4.6

ClinPred

0.98

GERP RS

1.2

Varity_R

0.91

gMVP

0.87

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

No publications associated with this variant yet.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over