chr22-37097138-G-A

Variant names:

• chr22-37097138-G-A
• rs2160906
• NM_001374504.1:c.337-423C>T

Variant summary

Our verdict is Benign. The variant received -12 ACMG points: 0P and 12B. BP4_Strong BA1

The NM_001374504.1(TMPRSS6):​c.337-423C>T variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.173 in 152,170 control chromosomes in the GnomAD database, including 2,554 homozygotes. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency: Genomes: 𝑓 0.17 (2554 hom., cov: 33)
• Consequence: TMPRSS6 NM_001374504.1 intron
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -1.93
• Publications: 13 publications found

Genes affected

TMPRSS6 (HGNC:16517): (transmembrane serine protease 6) The protein encoded by this gene is a type II transmembrane serine proteinase that is found attached to the cell surface. The encoded protein may be involved in matrix remodeling processes in the liver. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Jan 2014]

TMPRSS6 Gene-Disease associations (from GenCC):

• IRIDA syndrome

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

ACMG classification

Our verdict: Benign. The variant received -12 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-1.04).
• BA1: GnomAd4 highest subpopulation (NFE) allele frequency at 95% confidence interval = 0.214 is higher than 0.05.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001374504.1. 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
	TMPRSS6	NM_001374504.1	MANE Select	c.337-423C>T		intron	N/A	NP_001361433.1	Q8IU80-1
	TMPRSS6	NM_001289000.2		c.337-423C>T		intron	N/A	NP_001275929.1	Q8IU80-5
	TMPRSS6	NM_001289001.2		c.337-423C>T		intron	N/A	NP_001275930.1	Q8IU80-1

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	TMPRSS6	ENST00000676104.1	MANE Select	c.337-423C>T		intron	N/A	ENSP00000501573.1	Q8IU80-1
	TMPRSS6	ENST00000406856.7	TSL:1	c.337-423C>T		intron	N/A	ENSP00000384964.1	Q8IU80-5
	TMPRSS6	ENST00000346753.9	TSL:1	c.337-423C>T		intron	N/A	ENSP00000334962.6	Q8IU80-1

Frequencies

GnomAD3 genomes AF: 0.173 AC: 26271 AN: 152050 Hom.: 2556 Cov.: 33

Gnomad AFR AF: 0.0949

Gnomad AMI AF: 0.0866

Gnomad AMR AF: 0.143

Gnomad ASJ AF: 0.224

Gnomad EAS AF: 0.192

Gnomad SAS AF: 0.126

Gnomad FIN AF: 0.235

Gnomad MID AF: 0.199

Gnomad NFE AF: 0.217

Gnomad OTH AF: 0.195

We have no GnomAD4 exomes data on this position. Probably position not covered by the project.

GnomAD4 genome AF: 0.173 AC: 26279 AN: 152170 Hom.: 2554 Cov.: 33 AF XY: 0.172 AC XY: 12829 AN XY: 74396

African (AFR) AF: 0.0949 AC: 3941 AN: 41518

American (AMR) AF: 0.143 AC: 2189 AN: 15294

Ashkenazi Jewish (ASJ) AF: 0.224 AC: 777 AN: 3466

East Asian (EAS) AF: 0.192 AC: 994 AN: 5172

South Asian (SAS) AF: 0.127 AC: 613 AN: 4824

European-Finnish (FIN) AF: 0.235 AC: 2483 AN: 10568

Middle Eastern (MID) AF: 0.201 AC: 59 AN: 294

European-Non Finnish (NFE) AF: 0.217 AC: 14738 AN: 68010

Other (OTH) AF: 0.192 AC: 406 AN: 2112

Alfa AF: 0.198 Hom.: 5539

Bravo AF: 0.165

Asia WGS AF: 0.148 AC: 514 AN: 3478

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-1.0
CADD	Benign	0.031
DANN	Benign	0.68
PhyloP100		-1.9
Mutation Taster		=100/0	polymorphism (auto)

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: rs2160906; hg19: chr22-37493178; COSMIC: COSV60983337;