Variant chrX-57331688-C-G details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Likely benign. Variant got -4 ACMG points: 0P and 4B. BS2

The NM_174912.4(FAAH2):c.503C>G(p.Ala168Gly) variant causes a missense change. The variant allele was found at a frequency of 0.0000736 in 1,209,658 control chromosomes in the GnomAD database, with no homozygous occurrence. There are 37 hemizygotes in GnomAD. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000063 ( 0 hom., 1 hem., cov: 23)

Exomes 𝑓: 0.000075 ( 0 hom. 36 hem. )

Consequence

FAAH2
NM_174912.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 4.09

Variant links:

Genes affected

FAAH2 (HGNC:26440): (fatty acid amide hydrolase 2) This gene encodes a fatty acid amide hydrolase that shares a conserved protein motif with the amidase signature family of enzymes. The encoded enzyme is able to catalyze the hydrolysis of a broad range of bioactive lipids, including those from the three main classes of fatty acid amides; N-acylethanolamines, fatty acid primary amides and N-acyl amino acids. This enzyme has a preference for monounsaturated acyl chains as a substrate. Alternate splicing results in multiple transcript variants encoding distinct isoforms. [provided by RefSeq, Jul 2017]

FAAH2 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -4 ACMG points.

BS2

High Hemizygotes in GnomAdExome4 at 36 gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
FAAH2	NM_174912.4 linkuse as main transcript	c.503C>G	p.Ala168Gly	missense_variant	4/11	ENST00000374900.5

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
FAAH2	ENST00000374900.5 linkuse as main transcript	c.503C>G	p.Ala168Gly	missense_variant	4/11	1	NM_174912.4	P1

Frequencies

GnomAD3 genomes

AF:

0.0000626

AC:

AN:

111837

Hom.:

Cov.:

AF XY:

0.0000294

AC XY:

AN XY:

34027

show subpopulations

Gnomad AFR

AF:

0.0000325

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000190

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:

0.0000752

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000601

AC:

AN:

183176

Hom.:

AF XY:

0.0000886

AC XY:

AN XY:

67736

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.000365

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:

0.0000122

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000747

AC:

AN:

1097821

Hom.:

Cov.:

AF XY:

0.0000991

AC XY:

AN XY:

363225

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.000284

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:

0.0000808

Gnomad4 OTH exome

AF:

0.0000868

GnomAD4 genome

AF:

0.0000626

AC:

AN:

111837

Hom.:

Cov.:

AF XY:

0.0000294

AC XY:

AN XY:

34027

show subpopulations

Gnomad4 AFR

AF:

0.0000325

Gnomad4 AMR

AF:

0.000190

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000752

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.000142

Hom.:

Bravo

AF:

0.0000491

ExAC

AF:

0.0000577

AC:

EpiCase

AF:

0.000164

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

Apr 24, 2024

The c.503C>G (p.A168G) alteration is located in exon 4 (coding exon 4) of the FAAH2 gene. This alteration results from a C to G substitution at nucleotide position 503, causing the alanine (A) at amino acid position 168 to be replaced by a glycine (G). 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

0.17

BayesDel_addAF

Benign

-0.25

BayesDel_noAF

Benign

-0.30

CADD

Benign

DANN

Uncertain

0.98

DEOGEN2

Benign

0.16

FATHMM_MKL

Benign

0.71

LIST_S2

Benign

0.81

M_CAP

Benign

0.0090

MetaRNN

Uncertain

0.55

MetaSVM

Benign

-0.92

MutationAssessor

Benign

1.9

MutationTaster

Benign

1.0

PrimateAI

Uncertain

0.56

PROVEAN

Uncertain

-2.9

REVEL

Uncertain

0.30

Sift

Benign

0.080

Sift4G

Benign

0.17

Polyphen

0.013

Vest4

0.54

MutPred

0.83

Loss of ubiquitination at K164 (P = 0.1327);

MVP

0.62

MPC

0.00099

ClinPred

0.12

GERP RS

2.4

Varity_R

0.24

gMVP

0.73

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