Genetic Variant TRPM6:c.*843G>A (chr9-74723770-C-T) – ACMG Classification: Likely_benign (-5 pts)

Variant summary

Our verdict is Likely benign. The variant received -5 ACMG points: 0P and 5B. BP4_StrongBS1_Supporting

The NM_017662.5(TRPM6):c.*843G>A variant causes a 3 prime UTR change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000252 in 146,568 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.00025 ( 0 hom., cov: 30)

Failed GnomAD Quality Control

Consequence

TRPM6
NM_017662.5 3_prime_UTR

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.297

Publications

0 publications found

Variant links:

Genes affected

TRPM6 (HGNC:17995): (transient receptor potential cation channel subfamily M member 6) This gene is predominantly expressed in the kidney and colon, and encodes a protein containing an ion channel domain and a protein kinase domain. It is crucial for magnesium homeostasis, and plays an essential role in epithelial magnesium transport and in the active magnesium absorption in the gut and kidney. Mutations in this gene are associated with hypomagnesemia with secondary hypocalcemia. Alternatively spliced transcript variants encoding different isoforms have been noted for this gene. [provided by RefSeq, Apr 2010]

TRPM6 Gene-Disease associations (from GenCC):

intestinal hypomagnesemia 1
Inheritance: AR Classification: STRONG, SUPPORTIVE Submitted by: Orphanet, Labcorp Genetics (formerly Invitae)

TRPM6 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -5 ACMG points.

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.91).

BS1

Variant frequency is greater than expected in population nfe. GnomAd4 allele frequency = 0.000252 (37/146568) while in subpopulation NFE AF = 0.000483 (32/66236). AF 95% confidence interval is 0.000351. There are 0 homozygotes in GnomAd4. There are 15 alleles in the male GnomAd4 subpopulation. Median coverage is 30. This position passed quality control check. Existence of Clinvar submissions makes me limit the strength of this signal to Supporting

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_017662.5. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Gene	Transcript	Tags	HGVSc	Effect	Exon Rank	Protein	UniProt
TRPM6	NM_017662.5	MANE Select	c.*843G>A	3_prime_UTR	Exon 39 of 39	NP_060132.3
TRPM6	NM_001177310.2		c.*843G>A	3_prime_UTR	Exon 39 of 39	NP_001170781.1	Q9BX84-2
TRPM6	NM_001177311.2		c.*843G>A	3_prime_UTR	Exon 39 of 39	NP_001170782.1	Q9BX84-3

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	Effect	Exon Rank	Protein	UniProt
TRPM6	ENST00000360774.6	TSL:1 MANE Select	c.*843G>A	3_prime_UTR	Exon 39 of 39	ENSP00000354006.1	Q9BX84-1
TRPM6	ENST00000361255.7	TSL:1	c.*843G>A	3_prime_UTR	Exon 39 of 39	ENSP00000354962.3	Q9BX84-3
TRPM6	ENST00000449912.6	TSL:1	c.*843G>A	3_prime_UTR	Exon 39 of 39	ENSP00000396672.2	Q9BX84-2

Frequencies

GnomAD3 genomes

AF:

0.000252

AC:

AN:

146568

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000248

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00117

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.000483

Gnomad OTH

AF:

0.00

GnomAD4 exome

Data not reliable, filtered out with message: AC0

AC:

AN:

Hom.:

Cov.:

AC XY:

AN XY:

African (AFR)

AC:

AN:

American (AMR)

AC:

AN:

Ashkenazi Jewish (ASJ)

AC:

AN:

East Asian (EAS)

AC:

AN:

South Asian (SAS)

AC:

AN:

European-Finnish (FIN)

AC:

AN:

Middle Eastern (MID)

AC:

AN:

European-Non Finnish (NFE)

AC:

AN:

Other (OTH)

AC:

AN:

GnomAD4 genome

AF:

0.000252

AC:

AN:

146568

Hom.:

Cov.:

AF XY:

0.000210

AC XY:

AN XY:

71300

show subpopulations

African (AFR)

AF:

0.0000248

AC:

AN:

40282

American (AMR)

AF:

0.00

AC:

AN:

14612

Ashkenazi Jewish (ASJ)

AF:

0.00117

AC:

AN:

3418

East Asian (EAS)

AF:

0.00

AC:

AN:

5080

South Asian (SAS)

AF:

0.00

AC:

AN:

4724

European-Finnish (FIN)

AF:

0.00

AC:

AN:

9044

Middle Eastern (MID)

AF:

0.00

AC:

AN:

292

European-Non Finnish (NFE)

AF:

0.000483

AC:

AN:

66236

Other (OTH)

AF:

0.00

AC:

AN:

2002

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.502

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome 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

Alfa

AF:

0.000702

Hom.:

Bravo

AF:

0.000181

ClinVar

ClinVar submissions as Germline

Significance:Uncertain significance

Revision:criteria provided, single submitter

View on ClinVar

Pathogenic

VUS

Benign

Condition

Intestinal hypomagnesemia 1 (1)

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.91

CADD

Benign

2.7

(source)

DANN

Benign

0.54

PhyloP100

0.30

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

You must be logged in to view publications. This limit was set because tens of millions (!) of queries from AI bots are generated daily.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over