chr3-119447070-C-T

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_018266.3(TMEM39A):​c.523G>A​(p.Val175Ile) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000297 in 1,613,976 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000020 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000031 ( 0 hom. )

Consequence

TMEM39A
NM_018266.3 missense

Scores

3
16

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 2.35
Variant links:
Genes affected
TMEM39A (HGNC:25600): (transmembrane protein 39A) Involved in negative regulation of autophagosome assembly; negative regulation of autophagosome maturation; and positive regulation of viral genome replication. Located in endoplasmic reticulum membrane. [provided by Alliance of Genome Resources, Apr 2022]

Genome browser will be placed here

ACMG classification

Classification made for transcript

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=0.058841288).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
TMEM39ANM_018266.3 linkuse as main transcriptc.523G>A p.Val175Ile missense_variant 5/9 ENST00000319172.10

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
TMEM39AENST00000319172.10 linkuse as main transcriptc.523G>A p.Val175Ile missense_variant 5/91 NM_018266.3 P1Q9NV64-1

Frequencies

GnomAD3 genomes
AF:
0.0000197
AC:
3
AN:
152136
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0000655
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:
0.0000294
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000557
AC:
14
AN:
251370
Hom.:
0
AF XY:
0.0000662
AC XY:
9
AN XY:
135852
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.000218
Gnomad SAS exome
AF:
0.0000980
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000528
Gnomad OTH exome
AF:
0.000163
GnomAD4 exome
AF:
0.0000308
AC:
45
AN:
1461840
Hom.:
0
Cov.:
30
AF XY:
0.0000330
AC XY:
24
AN XY:
727234
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.0000224
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.000101
Gnomad4 SAS exome
AF:
0.0000696
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000288
Gnomad4 OTH exome
AF:
0.0000331
GnomAD4 genome
AF:
0.0000197
AC:
3
AN:
152136
Hom.:
0
Cov.:
32
AF XY:
0.0000404
AC XY:
3
AN XY:
74332
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.0000655
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000294
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.0000394
Hom.:
0
Bravo
AF:
0.0000227
ESP6500AA
AF:
0.00
AC:
0
ESP6500EA
AF:
0.000233
AC:
2
ExAC
AF:
0.0000659
AC:
8
EpiCase
AF:
0.0000545
EpiControl
AF:
0.000119

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 GeneticsAug 23, 2021The c.523G>A (p.V175I) alteration is located in exon 5 (coding exon 4) of the TMEM39A gene. This alteration results from a G to A substitution at nucleotide position 523, causing the valine (V) at amino acid position 175 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
0.097
BayesDel_addAF
Benign
-0.35
T
BayesDel_noAF
Benign
-0.51
CADD
Benign
19
DANN
Benign
0.40
DEOGEN2
Benign
0.0071
T;T
Eigen
Benign
-0.55
Eigen_PC
Benign
-0.36
FATHMM_MKL
Uncertain
0.94
D
LIST_S2
Uncertain
0.90
D;D
M_CAP
Benign
0.0080
T
MetaRNN
Benign
0.059
T;T
MetaSVM
Benign
-1.0
T
MutationAssessor
Benign
0.42
N;.
MutationTaster
Benign
1.0
D
PrimateAI
Uncertain
0.53
T
PROVEAN
Benign
0.030
N;N
REVEL
Benign
0.061
Sift
Benign
1.0
T;T
Sift4G
Benign
1.0
T;.
Polyphen
0.13
B;.
Vest4
0.20
MVP
0.068
MPC
0.34
ClinPred
0.039
T
GERP RS
3.0
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.1
Varity_R
0.016
gMVP
0.33

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: rs140336491; hg19: chr3-119165917; API