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GeneBe

4-75931271-C-T

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The NM_014435.4(NAAA):c.532G>A(p.Val178Ile) variant causes a missense change. The variant allele was found at a frequency of 0.000018 in 1,612,144 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000019 ( 0 hom. )

Consequence

NAAA
NM_014435.4 missense

Scores

10
9

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 5.79
Variant links:
Genes affected
NAAA (HGNC:736): (N-acylethanolamine acid amidase) Enables N-(long-chain-acyl)ethanolamine deacylase activity; N-acylsphingosine amidohydrolase activity; and fatty acid amide hydrolase activity. Involved in several processes, including N-acylethanolamine metabolic process; N-acylphosphatidylethanolamine metabolic process; and sphingosine metabolic process. Located in lysosome. Is extrinsic component of membrane. [provided by Alliance of Genome Resources, Apr 2022]

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 2 ACMG points.

PM2
Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
NAAANM_014435.4 linkuse as main transcriptc.532G>A p.Val178Ile missense_variant 4/11 ENST00000286733.9

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
NAAAENST00000286733.9 linkuse as main transcriptc.532G>A p.Val178Ile missense_variant 4/115 NM_014435.4 P1Q02083-1
NAAAENST00000507956.5 linkuse as main transcriptc.532G>A p.Val178Ile missense_variant 4/92 Q02083-2
NAAAENST00000505594.1 linkuse as main transcriptc.229G>A p.Val77Ile missense_variant 3/72
NAAAENST00000602782.5 linkuse as main transcriptc.157G>A p.Val53Ile missense_variant 2/83

Frequencies

GnomAD3 genomes
AF:
0.00000657
AC:
1
AN:
152210
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000241
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
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:
0.0000120
AC:
3
AN:
249396
Hom.:
0
AF XY:
0.00
AC XY:
0
AN XY:
135302
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.0000556
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.000330
GnomAD4 exome
AF:
0.0000192
AC:
28
AN:
1459934
Hom.:
0
Cov.:
30
AF XY:
0.0000207
AC XY:
15
AN XY:
726136
show subpopulations
Gnomad4 AFR exome
AF:
0.000598
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.0000252
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00
Gnomad4 OTH exome
AF:
0.000116
GnomAD4 genome
AF:
0.00000657
AC:
1
AN:
152210
Hom.:
0
Cov.:
32
AF XY:
0.0000134
AC XY:
1
AN XY:
74354
show subpopulations
Gnomad4 AFR
AF:
0.0000241
Gnomad4 AMR
AF:
0.00
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:
0.0000984
Hom.:
0
ExAC
AF:
0.0000248
AC:
3
Asia WGS
AF:
0.000866
AC:
3
AN:
3478

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 GeneticsJun 23, 2021The c.532G>A (p.V178I) alteration is located in exon 4 (coding exon 4) of the NAAA gene. This alteration results from a G to A substitution at nucleotide position 532, causing the valine (V) at amino acid position 178 to be replaced by an isoleucine (I). 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
0.10
BayesDel_addAF
Benign
-0.030
T
BayesDel_noAF
Benign
-0.11
Cadd
Uncertain
24
Dann
Uncertain
1.0
DEOGEN2
Benign
0.19
T;.;T
Eigen
Uncertain
0.53
Eigen_PC
Uncertain
0.58
FATHMM_MKL
Uncertain
0.94
D
LIST_S2
Uncertain
0.90
D;D;D
M_CAP
Benign
0.055
D
MetaRNN
Uncertain
0.65
D;D;D
MetaSVM
Uncertain
-0.24
T
MutationAssessor
Uncertain
2.1
M;M;.
MutationTaster
Benign
0.98
D;D;D;D
PrimateAI
Uncertain
0.53
T
PROVEAN
Benign
-0.74
N;N;N
REVEL
Uncertain
0.40
Sift
Benign
0.19
T;T;T
Sift4G
Benign
0.13
T;T;T
Polyphen
0.84
P;.;P
Vest4
0.61
MutPred
0.68
Loss of catalytic residue at T182 (P = 0.2782);Loss of catalytic residue at T182 (P = 0.2782);.;
MVP
0.82
MPC
0.75
ClinPred
0.55
D
GERP RS
5.5
Varity_R
0.28
gMVP
0.79

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.010
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: rs758886611; hg19: chr4-76852424; API