Genetic Variant TMIGD1:p.Asn80His (chr17-30329374-T-G) – ACMG Classification: Uncertain_significance (2 pts)

Variant summary

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

The NM_206832.3(TMIGD1):c.238A>C(p.Asn80His) variant causes a missense change. The variant allele was found at a frequency of 0.00000248 in 1,614,026 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. N80K) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 31)

Exomes 𝑓: 0.0000014 ( 0 hom. )

Consequence

TMIGD1
NM_206832.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 5.19

Variant links:

Genes affected

TMIGD1 (HGNC:32431): (transmembrane and immunoglobulin domain containing 1) Involved in several processes, including negative regulation of apoptotic process; regulation of cell migration; and regulation of membrane permeability. Located in cytoplasm and plasma membrane. [provided by Alliance of Genome Resources, Apr 2022]

TMIGD1 links:

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 rank	MANE	Protein	UniProt
TMIGD1	NM_206832.3 link	c.238A>C	p.Asn80His	missense_variant	Exon 3 of 7	ENST00000328886.5	NP_996663.1	Q6UXZ0-1
TMIGD1	NM_001319942.2 link	c.238A>C	p.Asn80His	missense_variant	Exon 3 of 6		NP_001306871.1	Q6UXZ0-2
TMIGD1	XM_011524787.2 link	c.238A>C	p.Asn80His	missense_variant	Exon 3 of 7		XP_011523089.1	Q6UXZ0-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
TMIGD1	ENST00000328886.5 link	c.238A>C	p.Asn80His	missense_variant	Exon 3 of 7	1	NM_206832.3	ENSP00000332404.4		Q6UXZ0-1
TMIGD1	ENST00000538566.6 link	c.238A>C	p.Asn80His	missense_variant	Exon 3 of 6	2		ENSP00000446118.2		Q6UXZ0-2

Frequencies

GnomAD3 genomes

AF:

0.0000131

AC:

AN:

152132

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000241

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:

0.00

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.00000398

AC:

AN:

251394

Hom.:

AF XY:

0.00

AC XY:

AN XY:

135864

show subpopulations

Gnomad AFR exome

AF:

0.0000615

Gnomad AMR exome

AF:

0.00

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:

0.00000137

AC:

AN:

1461894

Hom.:

Cov.:

AF XY:

0.00000138

AC XY:

AN XY:

727248

show subpopulations

Gnomad4 AFR exome

AF:

0.0000299

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:

0.00

Gnomad4 OTH exome

AF:

0.0000166

GnomAD4 genome

AF:

0.0000131

AC:

AN:

152132

Hom.:

Cov.:

AF XY:

0.0000135

AC XY:

AN XY:

74308

show subpopulations

Gnomad4 AFR

AF:

0.0000241

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:

0.00

Gnomad4 OTH

AF:

0.00

Bravo

AF:

0.0000113

ExAC

AF:

0.0000165

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Apr 14, 2022

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.238A>C (p.N80H) alteration is located in exon 3 (coding exon 2) of the TMIGD1 gene. This alteration results from a A to C substitution at nucleotide position 238, causing the asparagine (N) at amino acid position 80 to be replaced by a histidine (H). 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

0.27

BayesDel_addAF

Benign

-0.25

BayesDel_noAF

Benign

-0.36

CADD

Uncertain

DANN

Uncertain

1.0

DEOGEN2

Benign

0.17

.;T

Eigen

Pathogenic

0.71

Eigen_PC

Pathogenic

0.68

FATHMM_MKL

Uncertain

0.96

LIST_S2

Benign

0.77

T;T

M_CAP

Benign

0.024

MetaRNN

Uncertain

0.55

D;D

MetaSVM

Benign

-1.1

MutationAssessor

Uncertain

2.6

M;M

PrimateAI

Uncertain

0.62

PROVEAN

Uncertain

-2.9

D;D

REVEL

Benign

0.17

Sift

Pathogenic

0.0

D;D

Sift4G

Pathogenic

0.0

D;D

Polyphen

1.0

D;D

Vest4

0.58

MutPred

0.29

Loss of catalytic residue at N80 (P = 0.0427);Loss of catalytic residue at N80 (P = 0.0427);

MVP

0.25

MPC

0.22

ClinPred

0.98

GERP RS

5.5

Varity_R

0.74

gMVP

0.65

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.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over