16-56590861-C-T

Variant names:

• chr16-56590861-C-T
• rs754570773
• NM_005954.4:c.119C>T

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 2P and 2B. PM2 BP4_Moderate

The NM_005954.4(MT3):​c.119C>T​(p.Ala40Val) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000496 in 1,613,814 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency:
  • Genomes: 𝑓 0.0000066 (0 hom., cov: 32)
  • Exomes 𝑓: 0.0000048 (0 hom.)
• Consequence: MT3 NM_005954.4 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 1.62
• Publications: 0 publications found

Genes affected

MT3 (HGNC:7408): (metallothionein 3) This gene is a member of the metallothionein family of genes. Proteins encoded by this gene family are low in molecular weight, are cysteine-rich, lack aromatic residues, and bind divalent heavy metal ions. This gene family member displays tissue-specific expression, and contains a threonine insert near its N-terminus and a glutamate-rich hexapeptide insert near its C-terminus relative to the proteins encoded by other gene family members. It plays an important role in zinc and copper homeostasis, and is induced under hypoxic conditions. The encoded protein is a growth inhibitory factor, and reduced levels of the protein are observed in the brains of individuals with some metal-linked neurodegenerative disorders such as Alzheimer's disease. [provided by RefSeq, Sep 2017]

ACMG classification

Our verdict: Uncertain_significance. The variant received 0 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.07083258).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_005954.4. 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
	MT3	NM_005954.4	MANE Select	c.119C>T	p.Ala40Val	missense	Exon 3 of 3	NP_005945.1	P25713

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	MT3	ENST00000200691.5	TSL:1 MANE Select	c.119C>T	p.Ala40Val	missense	Exon 3 of 3	ENSP00000200691.5	P25713
	MT3	ENST00000561640.5	TSL:3	c.254C>T	p.Ala85Val	missense	Exon 4 of 4	ENSP00000455353.1	H3BPK2
	MT3	ENST00000565838.5	TSL:3	c.158C>T	p.Ala53Val	missense	Exon 3 of 3	ENSP00000455980.1	H3BQX6

Frequencies

GnomAD3 genomes AF: 0.00000657 AC: 1 AN: 152218 Hom.: 0 Cov.: 32

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

GnomAD2 exomes AF: 0.00000400 AC: 1 AN: 249900 AF XY: 0.00000740

Gnomad AFR exome AF: 0.00

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: 0.00000479 AC: 7 AN: 1461596 Hom.: 0 Cov.: 30 AF XY: 0.00000413 AC XY: 3 AN XY: 727080

African (AFR) AF: 0.00 AC: 0 AN: 33476

American (AMR) AF: 0.00 AC: 0 AN: 44710

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26130

East Asian (EAS) AF: 0.0000504 AC: 2 AN: 39692

South Asian (SAS) AF: 0.0000232 AC: 2 AN: 86230

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53272

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5768

European-Non Finnish (NFE) AF: 0.00000270 AC: 3 AN: 1111934

Other (OTH) AF: 0.00 AC: 0 AN: 60384

GnomAD4 genome AF: 0.00000657 AC: 1 AN: 152218 Hom.: 0 Cov.: 32 AF XY: 0.0000134 AC XY: 1 AN XY: 74356

African (AFR) AF: 0.00 AC: 0 AN: 41458

American (AMR) AF: 0.00 AC: 0 AN: 15284

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 3472

East Asian (EAS) AF: 0.00 AC: 0 AN: 5188

South Asian (SAS) AF: 0.00 AC: 0 AN: 4830

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 10628

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 316

European-Non Finnish (NFE) AF: 0.0000147 AC: 1 AN: 68040

Other (OTH) AF: 0.00 AC: 0 AN: 2090

Alfa AF: 0.00 Hom.: 0

Bravo AF: 0.00000378

ExAC AF: 0.00000824 AC: 1

EpiCase AF: 0.0000545

EpiControl AF: 0.00

ClinVar

ClinVar submissions

Significance: Uncertain significance

Revision: criteria provided, single submitter

Pathogenic	VUS	Benign	Condition
-	1	-	not specified (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.10
BayesDel_addAF	Benign	-0.31	T
BayesDel_noAF	Benign	-0.58
CADD	Benign	19
DANN	Benign	0.90
DEOGEN2	Benign	0.046	T
Eigen	Benign	-0.64
Eigen_PC	Benign	-0.62
FATHMM_MKL	Benign	0.066	N
LIST_S2	Benign	0.26	T
M_CAP	Benign	0.0053	T
MetaRNN	Benign	0.071	T
MetaSVM	Benign	-0.98	T
PhyloP100		1.6
PrimateAI	Benign	0.41	T
PROVEAN	Benign	1.1	N
REVEL	Benign	0.030
Sift	Benign	0.30	T
Sift4G	Benign	0.52	T
Polyphen		0.014	B
Vest4		0.26
MutPred		0.37		Loss of relative solvent accessibility (P = 0.0186)
MVP		0.10
MPC		0.18
ClinPred		0.45	T
GERP RS		1.9
Varity_R		0.053
gMVP		0.14
Mutation Taster		=83/17	polymorphism

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.010		Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Other links and lift over

dbSNP: rs754570773; hg19: chr16-56624773; COSMIC: COSV99570462; COSMIC: COSV99570462;