7-12215026-G-C

Variant summary

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

The NM_001134232.2(TMEM106B):ā€‹c.216G>Cā€‹(p.Arg72Ser) variant causes a missense, splice region change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000496 in 1,611,876 control chromosomes in the GnomAD database, with no homozygous occurrence. 3/3 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Uncertain significance (ā˜…).

Frequency

Genomes: š‘“ 0.0000066 ( 0 hom., cov: 32)
Exomes š‘“: 0.0000048 ( 0 hom. )

Consequence

TMEM106B
NM_001134232.2 missense, splice_region

Scores

2
8
9
Splicing: ADA: 0.0003226
2

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.999
Variant links:
Genes affected
TMEM106B (HGNC:22407): (transmembrane protein 106B) Enables ATPase binding activity. Involved in dendrite morphogenesis and lysosome localization. Located in endosome and lysosomal membrane. Implicated in hypomyelinating leukodystrophy. [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 2 ACMG points.

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

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
TMEM106BNM_001134232.2 linkuse as main transcriptc.216G>C p.Arg72Ser missense_variant, splice_region_variant 2/8 ENST00000396668.8 NP_001127704.1
TMEM106BNM_018374.4 linkuse as main transcriptc.216G>C p.Arg72Ser missense_variant, splice_region_variant 3/9 NP_060844.2

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
TMEM106BENST00000396668.8 linkuse as main transcriptc.216G>C p.Arg72Ser missense_variant, splice_region_variant 2/81 NM_001134232.2 ENSP00000379902 P1

Frequencies

GnomAD3 genomes
AF:
0.00000657
AC:
1
AN:
152172
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00
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:
0.00000480
AC:
7
AN:
1459704
Hom.:
0
Cov.:
30
AF XY:
0.00000551
AC XY:
4
AN XY:
726180
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:
0.00000657
AC:
1
AN:
152172
Hom.:
0
Cov.:
32
AF XY:
0.00
AC XY:
0
AN XY:
74340
show subpopulations
Gnomad4 AFR
AF:
0.00
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:
0.00000378

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

Inborn genetic diseases Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingAmbry GeneticsSep 29, 2022The c.216G>C (p.R72S) alteration is located in exon 3 (coding exon 1) of the TMEM106B gene. This alteration results from a G to C substitution at nucleotide position 216, causing the arginine (R) at amino acid position 72 to be replaced by a serine (S). 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
Pathogenic
0.99
BayesDel_addAF
Uncertain
0.14
D
BayesDel_noAF
Uncertain
-0.030
CADD
Benign
20
DANN
Uncertain
0.99
DEOGEN2
Benign
0.070
T;T;T
Eigen
Benign
0.15
Eigen_PC
Benign
0.10
FATHMM_MKL
Uncertain
0.85
D
LIST_S2
Uncertain
0.91
.;D;T
M_CAP
Benign
0.030
D
MetaRNN
Uncertain
0.58
D;D;D
MetaSVM
Benign
-1.1
T
MutationAssessor
Benign
1.9
L;.;L
MutationTaster
Benign
1.0
D;D
PrimateAI
Pathogenic
0.88
D
PROVEAN
Uncertain
-2.4
N;D;N
REVEL
Uncertain
0.33
Sift
Benign
0.089
T;T;T
Sift4G
Benign
0.25
T;T;T
Polyphen
0.97
D;.;D
Vest4
0.88
MutPred
0.56
Loss of helix (P = 0.0376);Loss of helix (P = 0.0376);Loss of helix (P = 0.0376);
MVP
0.43
MPC
0.94
ClinPred
0.88
D
GERP RS
2.5
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Varity_R
0.40
gMVP
0.68

Splicing

Name
Calibrated prediction
Score
Prediction
dbscSNV1_ADA
Benign
0.00032
dbscSNV1_RF
Benign
0.10
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: rs1422211236; hg19: chr7-12254652; API