chr4-102344551-C-G

Variant names:

Variant summary

Our verdict is Pathogenic. The variant received 11 ACMG points: 11P and 0B. PM2PP3PP5_Very_Strong

The NM_001135146.2(SLC39A8):c.112G>C(p.Gly38Arg) variant causes a missense change. The variant allele was found at a frequency of 0.0000341 in 1,555,358 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Likely pathogenic (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. G38V) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.000020 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000036 ( 0 hom. )

Consequence

SLC39A8
NM_001135146.2 missense

Scores

Clinical Significance

Pathogenic/Likely pathogenic criteria provided, multiple submitters, no conflicts P:5

Conservation

PhyloP100: 4.01

Publications

17 publications found

Variant links:

Genes affected

SLC39A8 (HGNC:20862): (solute carrier family 39 member 8) This gene encodes a member of the SLC39 family of solute-carrier genes, which show structural characteristics of zinc transporters. The encoded protein is glycosylated and found in the plasma membrane and mitochondria, and functions in the cellular import of zinc at the onset of inflammation. It is also thought to be the primary transporter of the toxic cation cadmium, which is found in cigarette smoke. Multiple transcript variants encoding different isoforms have been found for this gene. Additional alternatively spliced transcript variants of this gene have been described, but their full-length nature is not known. [provided by RefSeq, Oct 2008]

SLC39A8 Gene-Disease associations (from GenCC):

SLC39A8-CDG
Inheritance: AR Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: Orphanet, G2P, Labcorp Genetics (formerly Invitae)
Leigh syndrome
Inheritance: AR Classification: LIMITED Submitted by: ClinGen

SLC39A8 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Pathogenic. The variant received 11 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

PP3

MetaRNN computational evidence supports a deleterious effect, 0.744

PP5

Variant 4-102344551-C-G is Pathogenic according to our data. Variant chr4-102344551-C-G is described in ClinVar as Pathogenic/Likely_pathogenic. ClinVar VariationId is 218895.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
SLC39A8	NM_001135146.2 link	c.112G>C	p.Gly38Arg	missense_variant	Exon 2 of 9	ENST00000356736.5	NP_001128618.1	Q9C0K1-1A0A024RDG0

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
SLC39A8	ENST00000356736.5 link	c.112G>C	p.Gly38Arg	missense_variant	Exon 2 of 9	1	NM_001135146.2	ENSP00000349174.4		Q9C0K1-1

Frequencies

GnomAD3 genomes

AF:

0.0000197

AC:

AN:

152130

Hom.:

Cov.:

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:

0.0000441

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.0000322

AC:

AN:

155134

AF XY:

0.0000240

show subpopulations

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:

0.0000645

Gnomad NFE exome

AF:

0.0000662

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000356

AC:

AN:

1403228

Hom.:

Cov.:

AF XY:

0.0000419

AC XY:

AN XY:

692794

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

31626

American (AMR)

AF:

0.00

AC:

AN:

36718

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

25160

East Asian (EAS)

AF:

0.00

AC:

AN:

36084

South Asian (SAS)

AF:

0.00

AC:

AN:

79290

European-Finnish (FIN)

AF:

0.0000409

AC:

AN:

48844

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5684

European-Non Finnish (NFE)

AF:

0.0000435

AC:

AN:

1081668

Other (OTH)

AF:

0.0000172

AC:

AN:

58154

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.482

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

AF:

0.0000197

AC:

AN:

152130

Hom.:

Cov.:

AF XY:

0.0000135

AC XY:

AN XY:

74310

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

41464

American (AMR)

AF:

0.00

AC:

AN:

15278

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3466

East Asian (EAS)

AF:

0.00

AC:

AN:

5148

South Asian (SAS)

AF:

0.00

AC:

AN:

4836

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10612

Middle Eastern (MID)

AF:

0.00

AC:

AN:

314

European-Non Finnish (NFE)

AF:

0.0000441

AC:

AN:

68008

Other (OTH)

AF:

0.00

AC:

AN:

2092

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.408

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Alfa

AF:

0.0000564

Hom.:

Bravo

AF:

0.0000302

ExAC

AF:

0.0000269

AC:

ClinVar

Significance: Pathogenic/Likely pathogenic

Submissions summary: Pathogenic:5

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

SLC39A8-CDG

Pathogenic:3

Mar 01, 2020

Institute of Human Genetics, University of Leipzig Medical Center

Significance:Likely pathogenic

Review Status:criteria provided, single submitter

Collection Method:clinical testing

Review of the variants reported in Reuter et al., 2017, PMID: 28097321: PS3,PM2,PP3_Supporting,PP3 -

May 22, 2020

Revvity Omics, Revvity

Significance:Likely pathogenic

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Dec 03, 2015

OMIM

Significance:Pathogenic

Review Status:no assertion criteria provided

Collection Method:literature only

- -

not provided

Pathogenic:2

May 08, 2024

Labcorp Genetics (formerly Invitae), Labcorp

Significance:Pathogenic

Review Status:criteria provided, single submitter

Collection Method:clinical testing

This sequence change replaces glycine, which is neutral and non-polar, with arginine, which is basic and polar, at codon 38 of the SLC39A8 protein (p.Gly38Arg). This variant is present in population databases (rs778210210, gnomAD 0.007%). This missense change has been observed in individuals with SLC39A8 deficiency syndrome (PMID: 2809732, 26637978, 26637979). It has also been observed to segregate with disease in related individuals. ClinVar contains an entry for this variant (Variation ID: 218895). An algorithm developed to predict the effect of missense changes on protein structure and function (PolyPhen-2) suggests that this variant is likely to be disruptive. Experimental studies have shown that this missense change affects SLC39A8 function (PMID: 29453449). For these reasons, this variant has been classified as Pathogenic. -

May 03, 2024

GeneDx

Significance:Pathogenic

Review Status:criteria provided, single submitter

Collection Method:clinical testing

Published in vitro analysis demonstrates G38R fails to localize on the cell surface and is retained within the endoplasmic reticulum, resulting in mitochondrial dysfunction and oxidative stress (PMID: 29453449); In silico analysis supports that this missense variant has a deleterious effect on protein structure/function; Not observed at a significant frequency in large population cohorts (gnomAD); This variant is associated with the following publications: (PMID: 27995398, 28749473, 28940310, 26637978, 26637979, 28097321, 31980526, 33163565, 34768831, 35636252, 32852845, 29453449) -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Pathogenic

0.87

BayesDel_addAF

Uncertain

0.037

BayesDel_noAF

Uncertain

0.0

CADD

Pathogenic

(source)

DANN

Uncertain

1.0

DEOGEN2

Benign

0.29

.;T;T

Eigen

Uncertain

0.57

Eigen_PC

Uncertain

0.55

FATHMM_MKL

Benign

0.54

LIST_S2

Benign

0.85

T;.;T

M_CAP

Pathogenic

0.71

MetaRNN

Pathogenic

0.74

D;D;D

MetaSVM

Uncertain

0.23

MutationAssessor

Benign

1.1

L;L;L

PhyloP100

4.0

PrimateAI

Pathogenic

0.79

PROVEAN

Uncertain

-3.3

D;D;D

REVEL

Pathogenic

0.66

Sift

Pathogenic

0.0

D;D;D

Sift4G

Uncertain

0.0020

D;D;D

Polyphen

0.98

.;D;D

Vest4

0.61

MVP

0.34

MPC

1.5

ClinPred

0.77

GERP RS

4.8

Varity_R

0.70

gMVP

0.88

Mutation Taster

=30/70

disease causing (ClinVar)

(source)

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

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over