chr2-218275486-C-T

Variant summary

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

The NM_022152.6(TMBIM1):​c.925G>A​(p.Asp309Asn) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000062 in 1,612,932 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: 33)
Exomes 𝑓: 0.0000048 ( 0 hom. )

Consequence

TMBIM1
NM_022152.6 missense

Scores

1
18

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.634
Variant links:
Genes affected
TMBIM1 (HGNC:23410): (transmembrane BAX inhibitor motif containing 1) Enables death receptor binding activity. Involved in negative regulation of Fas signaling pathway; negative regulation of extrinsic apoptotic signaling pathway via death domain receptors; and negative regulation of protein localization to plasma membrane. Located in Golgi apparatus; endosome membrane; and lysosomal membrane. [provided by Alliance of Genome Resources, Apr 2022]
PNKD (HGNC:9153): (PNKD metallo-beta-lactamase domain containing) This gene is thought to play a role in the regulation of myofibrillogenesis. Mutations in this gene have been associated with the movement disorder paroxysmal non-kinesigenic dyskinesia. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Mar 2010]

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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=0.041339725).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
TMBIM1NM_022152.6 linkc.925G>A p.Asp309Asn missense_variant 12/12 ENST00000258412.8 NP_071435.2 Q969X1B3KSM0A0A024R472
PNKDNM_015488.5 linkc.236+3937C>T intron_variant ENST00000273077.9 NP_056303.3 Q8N490-1A0A024R415

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
TMBIM1ENST00000258412.8 linkc.925G>A p.Asp309Asn missense_variant 12/121 NM_022152.6 ENSP00000258412.3 Q969X1
PNKDENST00000273077.9 linkc.236+3937C>T intron_variant 1 NM_015488.5 ENSP00000273077.4 Q8N490-1

Frequencies

GnomAD3 genomes
AF:
0.0000197
AC:
3
AN:
152196
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.0000482
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:
0.0000147
Gnomad OTH
AF:
0.00
GnomAD4 exome
AF:
0.00000479
AC:
7
AN:
1460736
Hom.:
0
Cov.:
29
AF XY:
0.00000413
AC XY:
3
AN XY:
726652
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:
0.00000630
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.0000197
AC:
3
AN:
152196
Hom.:
0
Cov.:
33
AF XY:
0.0000269
AC XY:
2
AN XY:
74346
show subpopulations
Gnomad4 AFR
AF:
0.0000482
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:
0.0000147
Gnomad4 OTH
AF:
0.00
Bravo
AF:
0.0000113

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 09, 2024The c.925G>A (p.D309N) alteration is located in exon 12 (coding exon 11) of the TMBIM1 gene. This alteration results from a G to A substitution at nucleotide position 925, causing the aspartic acid (D) at amino acid position 309 to be replaced by an asparagine (N). 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
0.11
BayesDel_addAF
Benign
-0.38
T
BayesDel_noAF
Benign
-0.79
CADD
Benign
13
DANN
Uncertain
0.99
DEOGEN2
Benign
0.0020
T;T;T;T
Eigen
Benign
-1.1
Eigen_PC
Benign
-1.0
FATHMM_MKL
Benign
0.18
N
LIST_S2
Benign
0.67
.;T;.;T
M_CAP
Benign
0.0082
T
MetaRNN
Benign
0.041
T;T;T;T
MetaSVM
Benign
-0.98
T
MutationAssessor
Benign
-0.77
N;N;N;.
PrimateAI
Benign
0.33
T
PROVEAN
Benign
0.75
N;N;N;N
REVEL
Benign
0.092
Sift
Benign
0.36
T;T;T;T
Sift4G
Benign
0.56
T;T;T;T
Polyphen
0.0
B;B;B;.
Vest4
0.021
MutPred
0.38
Gain of helix (P = 0.1736);Gain of helix (P = 0.1736);Gain of helix (P = 0.1736);.;
MVP
0.17
MPC
0.14
ClinPred
0.11
T
GERP RS
-1.4
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.1
Varity_R
0.019
gMVP
0.41

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: rs1259185032; hg19: chr2-219140209; API