17-10726255-T-C

Variant summary

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

The NM_001004313.3(TMEM220):ā€‹c.112A>Gā€‹(p.Thr38Ala) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000923 in 1,613,910 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/20 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (ā˜…).

Frequency

Genomes: š‘“ 0.000079 ( 0 hom., cov: 33)
Exomes š‘“: 0.000094 ( 0 hom. )

Consequence

TMEM220
NM_001004313.3 missense

Scores

19

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.680
Variant links:
Genes affected
TMEM220 (HGNC:33757): (transmembrane protein 220) Predicted to be integral component of 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=0.020327896).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
TMEM220NM_001004313.3 linkc.112A>G p.Thr38Ala missense_variant 3/6 ENST00000341871.8 NP_001004313.1 Q6QAJ8-1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
TMEM220ENST00000341871.8 linkc.112A>G p.Thr38Ala missense_variant 3/61 NM_001004313.3 ENSP00000339830.4 Q6QAJ8-1
TMEM220ENST00000455996.6 linkc.82A>G p.Thr28Ala missense_variant 2/51 ENSP00000396973.2 Q6QAJ8-2
TMEM220ENST00000578345.1 linkc.82A>G p.Thr28Ala missense_variant 2/42 ENSP00000462723.1 J3KSZ3
TMEM220ENST00000580186.1 linkn.111A>G non_coding_transcript_exon_variant 1/42

Frequencies

GnomAD3 genomes
AF:
0.0000789
AC:
12
AN:
152180
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.0000241
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.000576
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.000207
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.000103
Gnomad OTH
AF:
0.000478
GnomAD3 exomes
AF:
0.000167
AC:
42
AN:
251418
Hom.:
0
AF XY:
0.000199
AC XY:
27
AN XY:
135892
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.0000289
Gnomad ASJ exome
AF:
0.000397
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.0000653
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.000281
Gnomad OTH exome
AF:
0.000489
GnomAD4 exome
AF:
0.0000937
AC:
137
AN:
1461730
Hom.:
0
Cov.:
30
AF XY:
0.0000921
AC XY:
67
AN XY:
727190
show subpopulations
Gnomad4 AFR exome
AF:
0.0000896
Gnomad4 AMR exome
AF:
0.0000671
Gnomad4 ASJ exome
AF:
0.000612
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.000104
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000800
Gnomad4 OTH exome
AF:
0.000199
GnomAD4 genome
AF:
0.0000789
AC:
12
AN:
152180
Hom.:
0
Cov.:
33
AF XY:
0.000108
AC XY:
8
AN XY:
74352
show subpopulations
Gnomad4 AFR
AF:
0.0000241
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.000576
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.000207
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.000103
Gnomad4 OTH
AF:
0.000478
Alfa
AF:
0.000137
Hom.:
0
Bravo
AF:
0.000125
ESP6500AA
AF:
0.00
AC:
0
ESP6500EA
AF:
0.000465
AC:
4
ExAC
AF:
0.000231
AC:
28
Asia WGS
AF:
0.000577
AC:
2
AN:
3478
EpiCase
AF:
0.000164
EpiControl
AF:
0.000771

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 GeneticsNov 09, 2024The c.112A>G (p.T38A) alteration is located in exon 3 (coding exon 3) of the TMEM220 gene. This alteration results from a A to G substitution at nucleotide position 112, causing the threonine (T) at amino acid position 38 to be replaced by an alanine (A). 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
0.065
BayesDel_addAF
Benign
-0.44
T
BayesDel_noAF
Benign
-0.57
CADD
Benign
10
DANN
Benign
0.80
DEOGEN2
Benign
0.0021
T;.;.
Eigen
Benign
-1.0
Eigen_PC
Benign
-0.99
FATHMM_MKL
Benign
0.11
N
LIST_S2
Benign
0.47
T;T;T
M_CAP
Benign
0.0021
T
MetaRNN
Benign
0.020
T;T;T
MetaSVM
Benign
-1.0
T
MutationAssessor
Benign
1.3
L;.;.
PrimateAI
Benign
0.27
T
PROVEAN
Benign
0.030
N;N;.
REVEL
Benign
0.016
Sift
Benign
0.99
T;T;.
Sift4G
Benign
0.94
T;T;T
Polyphen
0.0030
B;B;.
Vest4
0.29
MVP
0.014
MPC
0.34
ClinPred
0.032
T
GERP RS
2.6
Varity_R
0.030
gMVP
0.072

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: rs140435479; hg19: chr17-10629572; API