Genetic Variant TMPRSS6:c.-13C>G (chr22-37103525-G-C) – ACMG Classification: Uncertain_significance (0 pts)

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The ENST00000346753.9(TMPRSS6):c.-13C>G variant causes a 5 prime UTR premature start codon gain change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000684 in 1,461,796 control chromosomes in the GnomAD database, with no homozygous occurrence. 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: not found (cov: 32)

Exomes 𝑓: 6.8e-7 ( 0 hom. )

Consequence

TMPRSS6
ENST00000346753.9 5_prime_UTR_premature_start_codon_gain

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 1.37

Publications

3 publications found

Variant links:

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: Labcorp Genetics (formerly Invitae), Orphanet, G2P, Genomics England PanelApp

TMPRSS6 links:

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ACMG classification

Classification was made for transcript

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=0.0884361).

Variant Effect in Transcripts

ACMG analysis was done for transcript: ENST00000346753.9. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Gene	Transcript	Tags	HGVSc	Effect	Exon Rank	Protein
TMPRSS6	NM_001374504.1	MANE Select	c.-1-107C>G	intron	N/A	NP_001361433.1
TMPRSS6	NM_153609.4		c.-13C>G	5_prime_UTR_premature_start_codon_gain	Exon 1 of 18	NP_705837.2
TMPRSS6	NM_153609.4		c.-13C>G	5_prime_UTR	Exon 1 of 18	NP_705837.2

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	Effect	Exon Rank	Protein
TMPRSS6	ENST00000346753.9	TSL:1	c.-13C>G	5_prime_UTR_premature_start_codon_gain	Exon 1 of 18	ENSP00000334962.6
TMPRSS6	ENST00000442782.7	TSL:1	c.-13C>G	5_prime_UTR_premature_start_codon_gain	Exon 1 of 10	ENSP00000397691.3
TMPRSS6	ENST00000346753.9	TSL:1	c.-13C>G	5_prime_UTR	Exon 1 of 18	ENSP00000334962.6

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

AF:

6.84e-7

AC:

AN:

1461796

Hom.:

Cov.:

AF XY:

0.00000138

AC XY:

AN XY:

727200

show subpopulations

African (AFR)

AF:

0.0000299

AC:

AN:

33480

American (AMR)

AF:

0.00

AC:

AN:

44722

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26136

East Asian (EAS)

AF:

0.00

AC:

AN:

39700

South Asian (SAS)

AF:

0.00

AC:

AN:

86258

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53334

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5768

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

1112002

Other (OTH)

AF:

0.00

AC:

AN:

60396

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.475

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

Cov.:

Alfa

AF:

0.00

Hom.:

Bravo

AF:

0.0000151

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Uncertain

0.38

BayesDel_addAF

Benign

-0.020

BayesDel_noAF

Benign

-0.27

CADD

Benign

3.6

(source)

DANN

Benign

0.92

DEOGEN2

Benign

0.070

Eigen

Benign

-1.2

Eigen_PC

Benign

-1.3

FATHMM_MKL

Benign

0.11

LIST_S2

Benign

0.43

M_CAP

Benign

0.063

MetaRNN

Benign

0.088

MetaSVM

Benign

-0.58

MutationAssessor

Benign

0.69

PhyloP100

1.4

PrimateAI

Benign

0.43

PROVEAN

Benign

-0.38

REVEL

Benign

0.23

Sift

Pathogenic

0.0

Sift4G

Pathogenic

0.0

Polyphen

0.0

Vest4

0.042

MutPred

0.31

Loss of sheet (P = 0.0357)

MVP

0.66

MPC

0.18

ClinPred

0.070

GERP RS

0.40

PromoterAI

-0.038

Neutral

(source)

Varity_R

0.13

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.050

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

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

ClinVar

Computational scores

Splicing

Publications

Other links and lift over