1-46394454-A-C

Position:

• chr1-46394454-A-C

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2 BP4_Strong

The NM_001441.3(FAAH):​c.106A>C​(p.Thr36Pro) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000163 in 1,225,394 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency:
  • Genomes: not found (cov: 33)
  • Exomes 𝑓: 0.0000016 (0 hom.)
• Consequence: FAAH NM_001441.3 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: -0.177

Genes affected

FAAH (HGNC:3553): (fatty acid amide hydrolase) This gene encodes a protein that is responsible for the hydrolysis of a number of primary and secondary fatty acid amides, including the neuromodulatory compounds anandamide and oleamide. [provided by RefSeq, Jul 2008]

ACMG classification

Verdict is Likely_benign. Variant got -2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.06073022).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
FAAH	NM_001441.3	c.106A>C	p.Thr36Pro	missense_variant	1/15	ENST00000243167.9

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
FAAH	ENST00000243167.9	c.106A>C	p.Thr36Pro	missense_variant	1/15	1	NM_001441.3	P1
FAAH	ENST00000468718.5	n.126A>C		non_coding_transcript_exon_variant	1/5	3
FAAH	ENST00000493735.5	n.84A>C		non_coding_transcript_exon_variant	1/8	5

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome AF: 0.00000163 AC: 2 AN: 1225394 Hom.: 0 Cov.: 30 AF XY: 0.00000167 AC XY: 1 AN XY: 599282

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: 0.00000199

Gnomad4 OTH exome AF: 0.00

GnomAD4 genome Cov.: 33

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

not specified Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Sep 17, 2021

The c.106A>C (p.T36P) alteration is located in exon 1 (coding exon 1) of the FAAH gene. This alteration results from a A to C substitution at nucleotide position 106, causing the threonine (T) at amino acid position 36 to be replaced by a proline (P). 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	0.063
BayesDel_addAF	Benign	-0.24	T
BayesDel_noAF	Benign	-0.58
CADD	Benign	5.1
DANN	Benign	0.48
DEOGEN2	Benign	0.055	T
Eigen	Benign	-1.6
Eigen_PC	Benign	-1.6
FATHMM_MKL	Benign	0.025	N
LIST_S2	Benign	0.25	T
M_CAP	Benign	0.074	D
MetaRNN	Benign	0.061	T
MetaSVM	Benign	-1.1	T
MutationAssessor	Benign	0.69	N
MutationTaster	Benign	1.0	N
PrimateAI	Uncertain	0.63	T
PROVEAN	Benign	-0.19	N
REVEL	Benign	0.058
Sift	Benign	0.28	T
Sift4G	Benign	0.31	T
Polyphen		0.0	B
Vest4		0.18
MutPred		0.38		Loss of phosphorylation at T36 (P = 0.0182);
MVP		0.14
MPC		0.44
ClinPred		0.23	T
GERP RS		-4.3
Varity_R		0.085
gMVP		0.31

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.

Other links and lift over

hg19: chr1-46860126;