rs104893662

Variant names:

• chr2-189571799-T-A
• rs104893662
• NM_014585.6:c.430A>T
• SLC40A1 p.Asn144Tyr

Your query was ambiguous. Multiple possible variants found:

• chr2-189571799-T-A
• chr2-189571799-T-C
• chr2-189571799-T-G

Variant summary

Our verdict is Pathogenic. The variant received 12 ACMG points: 12P and 0B. PM1 PM2 PM5 PP3_Strong PP5_Moderate

The NM_014585.6(SLC40A1):​c.430A>T​(p.Asn144Tyr) variant causes a missense change involving the alteration of a conserved nucleotide. 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 Pathogenic (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. N144D) has been classified as Pathogenic.

• Frequency: Genomes: not found (cov: 32)
• Consequence: SLC40A1 NM_014585.6 missense
• Clinical Significance: Pathogenic criteria provided, single submitter P:1
• Conservation: PhyloP100: 7.83
• Publications: 32 publications found

Genes affected

SLC40A1 (HGNC:10909): (solute carrier family 40 member 1) The protein encoded by this gene is a cell membrane protein that may be involved in iron export from duodenal epithelial cells. Defects in this gene are a cause of hemochromatosis type 4 (HFE4). [provided by RefSeq, Jul 2008]

SLC40A1 Gene-Disease associations (from GenCC):

• hemochromatosis type 4

  Inheritance: AD, AR Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: Ambry Genetics, PanelApp Australia, Genomics England PanelApp, G2P, Orphanet, Labcorp Genetics (formerly Invitae)

ACMG classification

Our verdict: Pathogenic. The variant received 12 ACMG points.

• PM1: In a helix (size 29) in uniprot entity S40A1_HUMAN there are 4 pathogenic changes around while only 0 benign (100%) in NM_014585.6
• PM2: Very rare variant in population databases, with high coverage
• PM5: Other missense variant is known to change same aminoacid residue: Variant chr2-189571799-T-C is described in ClinVar as Pathogenic. ClinVar VariationId is 801843.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
• PP3: MetaRNN computational evidence supports a deleterious effect, 0.971
• PP5: Variant 2-189571799-T-A is Pathogenic according to our data. Variant chr2-189571799-T-A is described in ClinVar as Pathogenic. ClinVar VariationId is 240918.Status of the report is criteria_provided_single_submitter, 1 stars.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_014585.6. 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
	SLC40A1	NM_014585.6	MANE Select	c.430A>T	p.Asn144Tyr	missense	Exon 5 of 8	NP_055400.1	Q9NP59

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	SLC40A1	ENST00000261024.7	TSL:1 MANE Select	c.430A>T	p.Asn144Tyr	missense	Exon 5 of 8	ENSP00000261024.3	Q9NP59
	SLC40A1	ENST00000852923.1		c.430A>T	p.Asn144Tyr	missense	Exon 7 of 10	ENSP00000522982.1
	SLC40A1	ENST00000852924.1		c.430A>T	p.Asn144Tyr	missense	Exon 6 of 9	ENSP00000522983.1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 31

GnomAD4 genome Cov.: 32

ClinVar

ClinVar submissions

Significance: Pathogenic

Revision: criteria provided, single submitter

Pathogenic	VUS	Benign	Condition
1	-	-	Hemochromatosis type 4 (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Uncertain	0.40
BayesDel_addAF	Pathogenic	0.41	D
BayesDel_noAF	Pathogenic	0.35
CADD	Pathogenic	28
DANN	Uncertain	0.99
DEOGEN2	Uncertain	0.75	D
Eigen	Pathogenic	0.76
Eigen_PC	Pathogenic	0.74
FATHMM_MKL	Pathogenic	0.98	D
LIST_S2	Uncertain	0.95	D
M_CAP	Uncertain	0.14	D
MetaRNN	Pathogenic	0.97	D
MetaSVM	Pathogenic	0.90	D
MutationAssessor	Pathogenic	3.1	M
PhyloP100		7.8
PrimateAI	Uncertain	0.74	T
PROVEAN	Uncertain	-4.2	D
REVEL	Pathogenic	0.84
Sift	Uncertain	0.0090	D
Sift4G	Uncertain	0.055	T
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.7
Varity_R		0.67
gMVP		0.97
Mutation Taster		=26/74	disease causing

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

MaxEntScan Visualizer can be used to analyze the impact of this mutation on the neighboring sequence.

Other links and lift over

dbSNP: rs104893662;

hg19: chr2-190436525;