rs612862

Variant summary

Our verdict is Benign. Variant got -21 ACMG points: 0P and 21B. BP4_StrongBP6_Very_StrongBP7BA1

The NM_020533.3(MCOLN1):​c.984C>T​(p.Asn328=) variant causes a splice region, synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.309 in 1,613,998 control chromosomes in the GnomAD database, including 79,402 homozygotes. In-silico tool predicts a benign outcome for this variant. 3/3 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Benign (★★).

Frequency

Genomes: 𝑓 0.29 ( 6634 hom., cov: 34)
Exomes 𝑓: 0.31 ( 72768 hom. )

Consequence

MCOLN1
NM_020533.3 splice_region, synonymous

Scores

2
Splicing: ADA: 0.00006245
2

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:8

Conservation

PhyloP100: -2.10
Variant links:
Genes affected
MCOLN1 (HGNC:13356): (mucolipin TRP cation channel 1) This gene encodes a memberof the transient receptor potential (TRP) cation channel gene family. The transmembrane protein localizes to intracellular vesicular membranes including lysosomes, and functions in the late endocytic pathway and in the regulation of lysosomal exocytosis. The channel is permeable to Ca(2+), Fe(2+), Na(+), K(+), and H(+), and is modulated by changes in Ca(2+) concentration. Mutations in this gene result in mucolipidosis type IV. [provided by RefSeq, Oct 2009]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -21 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.84).
BP6
Variant 19-7528703-C-T is Benign according to our data. Variant chr19-7528703-C-T is described in ClinVar as [Benign]. Clinvar id is 261324.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr19-7528703-C-T is described in Lovd as [Benign].
BP7
Synonymous conserved (PhyloP=-2.1 with no splicing effect.
BA1
GnomAd4 highest subpopulation (NFE) allele frequency at 95% confidence interval = 0.327 is higher than 0.05.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
MCOLN1NM_020533.3 linkuse as main transcriptc.984C>T p.Asn328= splice_region_variant, synonymous_variant 8/14 ENST00000264079.11 NP_065394.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
MCOLN1ENST00000264079.11 linkuse as main transcriptc.984C>T p.Asn328= splice_region_variant, synonymous_variant 8/141 NM_020533.3 ENSP00000264079 P1
MCOLN1ENST00000394321.9 linkuse as main transcriptn.1299C>T splice_region_variant, non_coding_transcript_exon_variant 7/132
MCOLN1ENST00000595860.5 linkuse as main transcriptn.50C>T non_coding_transcript_exon_variant 1/42

Frequencies

GnomAD3 genomes
AF:
0.287
AC:
43718
AN:
152110
Hom.:
6643
Cov.:
34
show subpopulations
Gnomad AFR
AF:
0.240
Gnomad AMI
AF:
0.148
Gnomad AMR
AF:
0.253
Gnomad ASJ
AF:
0.414
Gnomad EAS
AF:
0.150
Gnomad SAS
AF:
0.278
Gnomad FIN
AF:
0.274
Gnomad MID
AF:
0.443
Gnomad NFE
AF:
0.331
Gnomad OTH
AF:
0.324
GnomAD3 exomes
AF:
0.284
AC:
71289
AN:
251070
Hom.:
11073
AF XY:
0.292
AC XY:
39573
AN XY:
135738
show subpopulations
Gnomad AFR exome
AF:
0.233
Gnomad AMR exome
AF:
0.172
Gnomad ASJ exome
AF:
0.406
Gnomad EAS exome
AF:
0.158
Gnomad SAS exome
AF:
0.276
Gnomad FIN exome
AF:
0.275
Gnomad NFE exome
AF:
0.336
Gnomad OTH exome
AF:
0.329
GnomAD4 exome
AF:
0.311
AC:
454662
AN:
1461768
Hom.:
72768
Cov.:
61
AF XY:
0.312
AC XY:
226952
AN XY:
727186
show subpopulations
Gnomad4 AFR exome
AF:
0.232
Gnomad4 AMR exome
AF:
0.181
Gnomad4 ASJ exome
AF:
0.403
Gnomad4 EAS exome
AF:
0.138
Gnomad4 SAS exome
AF:
0.283
Gnomad4 FIN exome
AF:
0.279
Gnomad4 NFE exome
AF:
0.326
Gnomad4 OTH exome
AF:
0.314
GnomAD4 genome
AF:
0.287
AC:
43713
AN:
152230
Hom.:
6634
Cov.:
34
AF XY:
0.285
AC XY:
21207
AN XY:
74426
show subpopulations
Gnomad4 AFR
AF:
0.240
Gnomad4 AMR
AF:
0.253
Gnomad4 ASJ
AF:
0.414
Gnomad4 EAS
AF:
0.150
Gnomad4 SAS
AF:
0.276
Gnomad4 FIN
AF:
0.274
Gnomad4 NFE
AF:
0.331
Gnomad4 OTH
AF:
0.321
Alfa
AF:
0.325
Hom.:
17592
Bravo
AF:
0.282
Asia WGS
AF:
0.236
AC:
822
AN:
3478
EpiCase
AF:
0.347
EpiControl
AF:
0.351

ClinVar

Significance: Benign
Submissions summary: Benign:8
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

Mucolipidosis type IV Benign:4
Benign, criteria provided, single submitterclinical testingGenome-Nilou LabJun 10, 2021- -
Benign, criteria provided, single submitterclinical testingIllumina Laboratory Services, IlluminaJan 13, 2018This variant was observed in the ICSL laboratory as part of a predisposition screen in an ostensibly healthy population. It had not been previously curated by ICSL or reported in the Human Gene Mutation Database (HGMD: prior to June 1st, 2018), and was therefore a candidate for classification through an automated scoring system. Utilizing variant allele frequency, disease prevalence and penetrance estimates, and inheritance mode, an automated score was calculated to assess if this variant is too frequent to cause the disease. Based on the score and internal cut-off values, a variant classified as benign is not then subjected to further curation. The score for this variant resulted in a classification of benign for this disease. -
Benign, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpFeb 01, 2024- -
Benign, no assertion criteria providedclinical testingNatera, Inc.Apr 25, 2017- -
not provided Benign:3
Benign, criteria provided, single submitternot providedBreakthrough Genomics, Breakthrough Genomics-- -
Benign, no assertion criteria providedclinical testingMayo Clinic Laboratories, Mayo ClinicOct 23, 2015- -
Benign, criteria provided, single submitterclinical testingGeneDxMar 03, 2015- -
not specified Benign:1
Benign, criteria provided, single submitterclinical testingPreventionGenetics, part of Exact Sciences-- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.84
CADD
Benign
0.35
DANN
Benign
0.84

Splicing

Name
Calibrated prediction
Score
Prediction
dbscSNV1_ADA
Benign
0.000062
dbscSNV1_RF
Benign
0.012
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

LitVar

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

Other links and lift over

dbSNP: rs612862; hg19: chr19-7593589; COSMIC: COSV51175329; COSMIC: COSV51175329; API