Variant chr8-143726102-A-T details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Likely benign. Variant got -5 ACMG points: 0P and 5B. BS1_SupportingBS2

The NM_198488.5(FAM83H):c.3359T>A(p.Leu1120Gln) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000993 in 1,610,862 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 34)

Exomes 𝑓: 0.0000096 ( 0 hom. )

Consequence

FAM83H
NM_198488.5 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 9.06

Variant links:

Genes affected

FAM83H (HGNC:24797): (family with sequence similarity 83 member H) The protein encoded by this gene plays an important role in the structural development and calcification of tooth enamel. Defects in this gene are a cause of amelogenesis imperfecta type 3 (AI3). [provided by RefSeq, Mar 2010]

FAM83H links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -5 ACMG points.

BS1

Variant frequency is greater than expected in population amr. gnomad4_exome allele frequency = 0.0000096 (14/1458632) while in subpopulation AMR AF= 0.000269 (12/44558). AF 95% confidence interval is 0.000155. There are 0 homozygotes in gnomad4_exome. There are 5 alleles in male gnomad4_exome subpopulation. Median coverage is 84. This position pass quality control queck. Existence of Clinvar submissions makes me limit the strength of this signal to Supporting

BS2

High AC in GnomAdExome4 at 14 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
FAM83H	NM_198488.5 linkuse as main transcript	c.3359T>A	p.Leu1120Gln	missense_variant	5/5	ENST00000388913.4

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris
FAM83H	ENST00000388913.4 linkuse as main transcript	c.3359T>A	p.Leu1120Gln	missense_variant	5/5	5	NM_198488.5	P2
FAM83H	ENST00000650760.1 linkuse as main transcript	c.3962T>A	p.Leu1321Gln	missense_variant	5/5			A2
FAM83H	ENST00000395103.2 linkuse as main transcript	c.2540T>A	p.Leu847Gln	missense_variant, NMD_transcript_variant	1/2	2

Frequencies

GnomAD3 genomes

AF:

0.0000131

AC:

AN:

152230

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:

0.0000464

AC:

AN:

236958

Hom.:

AF XY:

0.0000306

AC XY:

AN XY:

130688

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.000294

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:

0.00000951

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000960

AC:

AN:

1458632

Hom.:

Cov.:

AF XY:

0.00000689

AC XY:

AN XY:

725550

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.000269

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:

0.00000180

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

AF:

0.0000131

AC:

AN:

152230

Hom.:

Cov.:

AF XY:

0.0000134

AC XY:

AN XY:

74370

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

Alfa

AF:

0.0000282

Hom.:

Bravo

AF:

0.0000227

ExAC

AF:

0.0000167

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

Inborn genetic diseases

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Dec 03, 2021

The c.3359T>A (p.L1120Q) alteration is located in exon 5 (coding exon 4) of the FAM83H gene. This alteration results from a T to A substitution at nucleotide position 3359, causing the leucine (L) at amino acid position 1120 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

Pathogenic

0.60

BayesDel_addAF

Benign

-0.20

BayesDel_noAF

Benign

-0.22

CADD

Pathogenic

DANN

Uncertain

0.99

DEOGEN2

Benign

0.088

Eigen

Benign

0.16

Eigen_PC

Benign

0.15

FATHMM_MKL

Pathogenic

0.98

M_CAP

Benign

0.048

MetaRNN

Uncertain

0.64

MetaSVM

Benign

-0.98

MutationAssessor

Benign

1.0

MutationTaster

Benign

0.51

PrimateAI

Uncertain

0.71

PROVEAN

Uncertain

-3.4

REVEL

Benign

0.28

Sift

Pathogenic

0.0

Sift4G

Pathogenic

0.0

Polyphen

0.96

Vest4

0.74

MutPred

0.25

Loss of helix (P = 0.0795);

MVP

0.21

MPC

1.1

ClinPred

0.44

GERP RS

2.5

Varity_R

0.17

gMVP

0.91

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