chrX-57331621-A-G

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_174912.4(FAAH2):ā€‹c.436A>Gā€‹(p.Met146Val) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000456 in 1,096,194 control chromosomes in the GnomAD database, with no homozygous occurrence. There are 1 hemizygotes in GnomAD. 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 (ā˜…).

Frequency

Genomes: not found (cov: 23)
Exomes š‘“: 0.0000046 ( 0 hom. 1 hem. )

Consequence

FAAH2
NM_174912.4 missense

Scores

1
16

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.440
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]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 0 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.07058367).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
FAAH2NM_174912.4 linkuse as main transcriptc.436A>G p.Met146Val missense_variant 4/11 ENST00000374900.5

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
FAAH2ENST00000374900.5 linkuse as main transcriptc.436A>G p.Met146Val missense_variant 4/111 NM_174912.4 P1

Frequencies

GnomAD3 genomes
Cov.:
23
GnomAD3 exomes
AF:
0.00000547
AC:
1
AN:
182681
Hom.:
0
AF XY:
0.00
AC XY:
0
AN XY:
67283
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
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:
0.0000123
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000456
AC:
5
AN:
1096194
Hom.:
0
Cov.:
30
AF XY:
0.00000276
AC XY:
1
AN XY:
362298
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
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:
0.00000595
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
23
Bravo
AF:
0.00000756

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 submitterclinical testingAmbry GeneticsJan 29, 2024The c.436A>G (p.M146V) alteration is located in exon 4 (coding exon 4) of the FAAH2 gene. This alteration results from a A to G substitution at nucleotide position 436, causing the methionine (M) at amino acid position 146 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
Benign
0.044
BayesDel_addAF
Benign
-0.48
T
BayesDel_noAF
Benign
-0.93
CADD
Benign
1.7
DANN
Benign
0.38
DEOGEN2
Benign
0.011
T
FATHMM_MKL
Benign
0.035
N
LIST_S2
Benign
0.54
T
M_CAP
Benign
0.0060
T
MetaRNN
Benign
0.071
T
MetaSVM
Benign
-1.0
T
MutationAssessor
Benign
-2.2
N
MutationTaster
Benign
1.0
N
PrimateAI
Uncertain
0.51
T
PROVEAN
Benign
1.0
N
REVEL
Benign
0.077
Sift
Benign
0.85
T
Sift4G
Benign
1.0
T
Polyphen
0.0
B
Vest4
0.087
MutPred
0.43
Loss of disorder (P = 0.0863);
MVP
0.68
MPC
0.00087
ClinPred
0.046
T
GERP RS
-0.15
Varity_R
0.073
gMVP
0.26

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.

Other links and lift over

dbSNP: rs1569266807; hg19: chrX-57358054; API