chr8-22408406-C-T

Variant names:

• chr8-22408406-C-T
• rs1554519011
• NM_001128431.4:c.367C>T

Variant summary

Our verdict is Pathogenic. The variant received 10 ACMG points: 10P and 0B. PVS1 PM2

The NM_001128431.4(SLC39A14):​c.367C>T​(p.Gln123*) variant causes a stop gained change. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as not provided (no stars). Variant results in nonsense mediated mRNA decay.

• Frequency: Genomes: not found (cov: 32)
• Consequence: SLC39A14 NM_001128431.4 stop_gained
• Clinical Significance: not provided no classification provided O:1
• Conservation: PhyloP100: 6.99
• Publications: 1 publications found

Genes affected

SLC39A14 (HGNC:20858): (solute carrier family 39 member 14) This gene encodes a member of the the SLC39A family of divalent metal transporters that mediates the cellular uptake of manganese, zinc, iron, and cadmium. The encoded protein contains eight transmembrane domains, a histidine-rich motif, and a metalloprotease motif, and is expressed on the plasma membrane and the endocytic vesicle membrane. It is an important transporter of nontransferrin-bound iron and a critical regulator of manganese homeostasis. Naturally occurring mutations in this gene are associated with neurodegeneration with brain iron accumulation and early-onset parkinsonism-dystonia with hypermanganesemia. [provided by RefSeq, May 2017]

SLC39A14 Gene-Disease associations (from GenCC):

• hypermanganesemia with dystonia 2

  Inheritance: AR Classification: STRONG, SUPPORTIVE Submitted by: PanelApp Australia, Orphanet, Labcorp Genetics (formerly Invitae)
• hyperostosis cranialis interna

  Inheritance: AD Classification: LIMITED Submitted by: Ambry Genetics

ACMG classification

Our verdict: Pathogenic. The variant received 10 ACMG points.

• PVS1: Loss of function variant, product undergoes nonsense mediated mRNA decay. LoF is a known mechanism of disease.
• PM2: Very rare variant in population databases, with high coverage

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001128431.4. 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
	SLC39A14	NM_001128431.4	MANE Select	c.367C>T	p.Gln123*	stop_gained	Exon 3 of 9	NP_001121903.1	Q15043-1
	SLC39A14	NM_015359.6	MANE Plus Clinical	c.367C>T	p.Gln123*	stop_gained	Exon 3 of 9	NP_056174.2	Q15043-3
	SLC39A14	NM_001351657.2		c.397C>T	p.Gln133*	stop_gained	Exon 5 of 11	NP_001338586.1

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	SLC39A14	ENST00000359741.10	TSL:2 MANE Plus Clinical	c.367C>T	p.Gln123*	stop_gained	Exon 3 of 9	ENSP00000352779.5	Q15043-3
	SLC39A14	ENST00000381237.6	TSL:1 MANE Select	c.367C>T	p.Gln123*	stop_gained	Exon 3 of 9	ENSP00000370635.1	Q15043-1
	SLC39A14	ENST00000240095.10	TSL:1	c.367C>T	p.Gln123*	stop_gained	Exon 3 of 9	ENSP00000240095.6	Q15043-2

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 31

GnomAD4 genome Cov.: 32

ClinVar

ClinVar submissions

Significance: not provided

Revision: no classification provided

Pathogenic	VUS	Benign	Condition
-	-	-	Hypermanganesemia with dystonia 2 (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
BayesDel_addAF	Pathogenic	0.63	D
BayesDel_noAF	Pathogenic	0.63
CADD	Pathogenic	41
DANN	Uncertain	0.99
Eigen	Pathogenic	1.0
Eigen_PC	Pathogenic	0.88
FATHMM_MKL	Pathogenic	0.99	D
PhyloP100		7.0
Vest4		0.90
GERP RS		4.7
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.7
Mutation Taster		=1/199	disease causing (ClinVar)

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

Other links and lift over

dbSNP: rs1554519011; hg19: chr8-22265919;