Genetic Variant NM_005951.2:c.86G>A (chr16-56670563-G-A) – ACMG Classification: Uncertain_significance (4 pts)

Variant summary

Our verdict is Uncertain significance. The variant received 4 ACMG points: 4P and 0B. PM1PM2

The NM_005951.2(MT1H):c.86G>A(p.Cys29Tyr) variant causes a missense change. The variant allele was found at a frequency of 0.000000684 in 1,461,888 control chromosomes in the GnomAD database, with no homozygous occurrence. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. C29G) has been classified as Uncertain significance.

Frequency

Genomes: not found (cov: 33)

Exomes 𝑓: 6.8e-7 ( 0 hom. )

Consequence

MT1H
NM_005951.2 missense

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 5.04

Publications

0 publications found

Variant links:

Genes affected

MT1H (HGNC:7400): (metallothionein 1H) Predicted to enable zinc ion binding activity. Involved in cellular response to cadmium ion and cellular response to zinc ion. Predicted to be active in cytoplasm and nucleus. [provided by Alliance of Genome Resources, Apr 2022]

MT1H links:

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ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 4 ACMG points.

PM1

In a binding_site (size 0) in uniprot entity MT1H_HUMAN

PM2

Very rare variant in population databases, with high coverage;

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_005951.2. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	MT1H	NM_005951.2	MANE Select	c.86G>A	p.Cys29Tyr	missense	Exon 2 of 3	NP_005942.1	P80294

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
MT1H	ENST00000332374.5	TSL:1 MANE Select	c.86G>A	p.Cys29Tyr	missense	Exon 2 of 3	ENSP00000330587.5	P80294
MT1H	ENST00000569155.1	TSL:1	c.86G>A	p.Cys29Tyr	missense	Exon 2 of 2	ENSP00000457114.1	H3BTC4
MT1H	ENST00000868220.1		c.29-335G>A		intron	N/A	ENSP00000538279.1

Frequencies

GnomAD3 genomes

Cov.:

GnomAD2 exomes

AF:

0.00000398

AC:

AN:

251402

AF XY:

0.00

show subpopulations

Gnomad AFR exome

AF:

0.0000616

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS 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:

6.84e-7

AC:

AN:

1461888

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

727242

show subpopulations

⚠️ The allele balance in gnomAD version 4 Exomes is significantly skewed from the expected value of 0.5.

African (AFR)

AF:

0.0000299

AC:

AN:

33480

American (AMR)

AF:

0.00

AC:

AN:

44724

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26136

East Asian (EAS)

AF:

0.00

AC:

AN:

39700

South Asian (SAS)

AF:

0.00

AC:

AN:

86258

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53416

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5768

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

1112012

Other (OTH)

AF:

0.00

AC:

AN:

60394

⚠️ The allele balance in gnomAD4 Exomes is highly skewed from 0.5 (p-value = 0), which strongly suggests a high chance of mosaicism in these individuals.

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.375

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

GnomAD4 genome

Cov.:

Alfa

AF:

0.0000712

Hom.:

Bravo

AF:

0.0000113

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Uncertain

0.44

BayesDel_addAF

Benign

-0.24

BayesDel_noAF

Benign

-0.40

CADD

Pathogenic

(source)

DANN

Uncertain

0.99

DEOGEN2

Benign

0.31

Eigen

Uncertain

0.28

Eigen_PC

Benign

0.18

FATHMM_MKL

Uncertain

0.81

LIST_S2

Benign

0.83

M_CAP

Benign

0.0053

MetaRNN

Uncertain

0.58

MetaSVM

Benign

-1.1

PhyloP100

5.0

PrimateAI

Benign

0.37

PROVEAN

Pathogenic

-9.9

REVEL

Benign

0.21

Sift

Uncertain

0.028

Sift4G

Uncertain

0.030

Polyphen

0.97

Vest4

0.53

MutPred

0.64

Loss of methylation at K30 (P = 0.027)

MVP

0.17

MPC

0.096

ClinPred

1.0

GERP RS

2.4

Varity_R

0.77

gMVP

0.55

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

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over