1-32075617-C-T

Variant summary

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

The NM_018056.4(TMEM39B):​c.146C>T​(p.Thr49Ile) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000286 in 1,398,940 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 31)
Exomes 𝑓: 0.0000029 ( 0 hom. )

Consequence

TMEM39B
NM_018056.4 missense

Scores

6
13

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 3.06
Variant links:
Genes affected
TMEM39B (HGNC:25510): (transmembrane protein 39B) Predicted to be integral component of membrane. Predicted to be active in membrane. [provided by Alliance of Genome Resources, Apr 2022]

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=0.24987835).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
TMEM39BNM_018056.4 linkuse as main transcriptc.146C>T p.Thr49Ile missense_variant 3/9 ENST00000336294.10 NP_060526.2

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
TMEM39BENST00000336294.10 linkuse as main transcriptc.146C>T p.Thr49Ile missense_variant 3/91 NM_018056.4 ENSP00000338165 P1Q9GZU3-1

Frequencies

GnomAD3 genomes
Cov.:
31
GnomAD3 exomes
AF:
0.0000129
AC:
2
AN:
155246
Hom.:
0
AF XY:
0.0000121
AC XY:
1
AN XY:
82380
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.0000812
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:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000286
AC:
4
AN:
1398940
Hom.:
0
Cov.:
32
AF XY:
0.00000290
AC XY:
2
AN XY:
689930
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.0000840
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:
9.27e-7
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
31

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 GeneticsApr 26, 2024The c.146C>T (p.T49I) alteration is located in exon 3 (coding exon 3) of the TMEM39B gene. This alteration results from a C to T substitution at nucleotide position 146, causing the threonine (T) at amino acid position 49 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
0.21
BayesDel_addAF
Benign
-0.13
T
BayesDel_noAF
Benign
-0.23
CADD
Uncertain
24
DANN
Uncertain
1.0
DEOGEN2
Benign
0.033
T;T
Eigen
Uncertain
0.38
Eigen_PC
Uncertain
0.39
FATHMM_MKL
Uncertain
0.92
D
LIST_S2
Uncertain
0.86
D;D
M_CAP
Benign
0.0094
T
MetaRNN
Benign
0.25
T;T
MetaSVM
Benign
-0.77
T
MutationAssessor
Benign
1.7
L;.
MutationTaster
Benign
1.0
D;D;D;D
PrimateAI
Uncertain
0.71
T
PROVEAN
Benign
-0.57
N;N
REVEL
Benign
0.16
Sift
Benign
0.59
T;T
Sift4G
Benign
0.53
T;T
Polyphen
0.96
D;.
Vest4
0.12
MutPred
0.35
Loss of phosphorylation at T49 (P = 0.0354);Loss of phosphorylation at T49 (P = 0.0354);
MVP
0.39
MPC
0.97
ClinPred
0.79
D
GERP RS
4.8
Varity_R
0.25
gMVP
0.58

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.13
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: rs1440316939; hg19: chr1-32541218; API