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GeneBe

15-31001861-C-CT

Variant summary

Our verdict is Uncertain significance. Variant got 4 ACMG points: 6P and 2B. PVS1_StrongPM2BP6_Moderate

The NM_001252024.2(TRPM1):c.4838_4839insA(p.Val1614GlyfsTer2) variant causes a frameshift change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000682 in 1,613,300 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Likely benign (★).

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 32)
Exomes 𝑓: 0.0000062 ( 0 hom. )

Consequence

TRPM1
NM_001252024.2 frameshift

Scores

Not classified

Clinical Significance

Likely benign criteria provided, single submitter B:1

Conservation

PhyloP100: 1.11
Variant links:
Genes affected
TRPM1 (HGNC:7146): (transient receptor potential cation channel subfamily M member 1) This gene encodes a member of the transient receptor potential melastatin subfamily of transient receptor potential ion channels. The encoded protein is a calcium permeable cation channel that is expressed in melanocytes and may play a role in melanin synthesis. Specific mutations in this gene are the cause autosomal recessive complete congenital stationary night blindness-1C. The expression of this protein is inversely correlated with melanoma aggressiveness and as such it is used as a prognostic marker for melanoma metastasis. Alternate splicing results in multiple transcript variants. [provided by RefSeq, Oct 2011]

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 4 ACMG points.

PVS1
Loss of function variant, product does not undergo nonsense mediated mRNA decay. Variant is located in the 3'-most exon, not predicted to undergo nonsense mediated mRNA decay. Fraction of 0.669 CDS is truncated, and there are 0 pathogenic variants in the truncated region.
PM2
Very rare variant in population databases, with high coverage;
BP6
Variant 15-31001861-C-CT is Benign according to our data. Variant chr15-31001861-C-CT is described in ClinVar as [Likely_benign]. Clinvar id is 1062194.Status of the report is criteria_provided_single_submitter, 1 stars.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
TRPM1NM_001252024.2 linkuse as main transcriptc.4838_4839insA p.Val1614GlyfsTer2 frameshift_variant 28/28 ENST00000256552.11
TRPM1NM_001252020.2 linkuse as main transcriptc.4889_4890insA p.Val1631GlyfsTer2 frameshift_variant 27/27
TRPM1NM_002420.6 linkuse as main transcriptc.4772_4773insA p.Val1592GlyfsTer2 frameshift_variant 27/27

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
TRPM1ENST00000256552.11 linkuse as main transcriptc.4838_4839insA p.Val1614GlyfsTer2 frameshift_variant 28/281 NM_001252024.2 P4Q7Z4N2-6
ENST00000665655.1 linkuse as main transcriptn.71+9627dup intron_variant, non_coding_transcript_variant

Frequencies

GnomAD3 genomes
AF:
0.0000132
AC:
2
AN:
152084
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000294
Gnomad OTH
AF:
0.00
GnomAD4 exome
AF:
0.00000616
AC:
9
AN:
1461216
Hom.:
0
Cov.:
34
AF XY:
0.00000688
AC XY:
5
AN XY:
726924
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00000719
Gnomad4 OTH exome
AF:
0.0000166
GnomAD4 genome
AF:
0.0000132
AC:
2
AN:
152084
Hom.:
0
Cov.:
32
AF XY:
0.0000135
AC XY:
1
AN XY:
74282
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000294
Gnomad4 OTH
AF:
0.00
Bravo
AF:
0.0000151

ClinVar

Significance: Likely benign
Submissions summary: Benign:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not provided Benign:1
Likely benign, criteria provided, single submitterclinical testingInvitaeDec 10, 2020- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.010
Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

LitVar

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs748716036; hg19: chr15-31294064; API