Variant chrX-57331624-A-C details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 0P and 2B. BP4_Moderate

The NM_174912.4(FAAH2):c.439A>C(p.Asn147His) variant causes a missense change involving the alteration of a non-conserved nucleotide. In-silico tool predicts a benign outcome for this variant. 14/20 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.0000090 ( 0 hom., 1 hem., cov: 23)

Exomes 𝑓: 0.00044 ( 0 hom. 0 hem. )

Failed GnomAD Quality Control

Consequence

FAAH2
NM_174912.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 2.15

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 -2 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.25125873).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
FAAH2	NM_174912.4 linkuse as main transcript	c.439A>C	p.Asn147His	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.439A>C	p.Asn147His	missense_variant	4/11	1	NM_174912.4	P1

Frequencies

GnomAD3 genomes

AF:

0.00

AC:

AN:

111597

Hom.:

Cov.:

AF XY:

0.0000296

AC XY:

AN XY:

33795

FAILED QC

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.0000956

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

Data not reliable, filtered out with message: AS_VQSR

AF:

0.000442

AC:

481

AN:

1087987

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

359297

show subpopulations

Gnomad4 AFR exome

AF:

0.000572

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.000259

Gnomad4 EAS exome

AF:

0.0000995

Gnomad4 SAS exome

AF:

0.000167

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.000520

Gnomad4 OTH exome

AF:

0.000350

GnomAD4 genome

Data not reliable, filtered out with message: AS_VQSR

AF:

0.00000896

AC:

AN:

111650

Hom.:

Cov.:

AF XY:

0.0000295

AC XY:

AN XY:

33858

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.0000955

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

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Apr 05, 2023

The c.439A>C (p.N147H) alteration is located in exon 4 (coding exon 4) of the FAAH2 gene. This alteration results from a A to C substitution at nucleotide position 439, causing the asparagine (N) at amino acid position 147 to be replaced by a histidine (H). 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

0.078

BayesDel_addAF

Benign

-0.30

BayesDel_noAF

Benign

-0.66

CADD

Benign

DANN

Benign

0.96

DEOGEN2

Benign

0.049

FATHMM_MKL

Benign

0.64

LIST_S2

Benign

0.78

M_CAP

Benign

0.0095

MetaRNN

Benign

0.25

MetaSVM

Benign

-1.0

MutationAssessor

Benign

1.1

MutationTaster

Benign

0.98

PrimateAI

Uncertain

0.60

PROVEAN

Benign

-1.4

REVEL

Benign

0.014

Sift

Benign

0.13

Sift4G

Benign

0.10

Polyphen

0.16

Vest4

0.33

MutPred

0.40

Loss of methylation at R148 (P = 0.0809);

MVP

0.68

MPC

0.0012

ClinPred

0.18

GERP RS

2.4

Varity_R

0.13

gMVP

0.29

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.030

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