3-195764168-C-T

Variant summary

Our verdict is Likely benign. Variant got -4 ACMG points: 2P and 6B. PM2BP4_StrongBP6_Moderate

The NM_018406.7(MUC4):​c.13925-4G>A variant causes a splice region, splice polypyrimidine tract, intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000368 in 1,561,516 control chromosomes in the GnomAD database, including 1 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 Likely benign (★).

Frequency

Genomes: 𝑓 0.00033 ( 0 hom., cov: 32)
Exomes 𝑓: 0.00037 ( 1 hom. )

Consequence

MUC4
NM_018406.7 splice_region, splice_polypyrimidine_tract, intron

Scores

2
Splicing: ADA: 0.00001424
2

Clinical Significance

Likely benign criteria provided, single submitter B:1

Conservation

PhyloP100: -1.01
Variant links:
Genes affected
MUC4 (HGNC:7514): (mucin 4, cell surface associated) The major constituents of mucus, the viscous secretion that covers epithelial surfaces such as those in the trachea, colon, and cervix, are highly glycosylated proteins called mucins. These glycoproteins play important roles in the protection of the epithelial cells and have been implicated in epithelial renewal and differentiation. This gene encodes an integral membrane glycoprotein found on the cell surface, although secreted isoforms may exist. At least two dozen transcript variants of this gene have been found, although for many of them the full-length transcript has not been determined or they are found only in tumor tissues. This gene contains a region in the coding sequence which has a variable number (>100) of 48 nt tandem repeats. [provided by RefSeq, Jul 2008]

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ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -4 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.85).
BP6
Variant 3-195764168-C-T is Benign according to our data. Variant chr3-195764168-C-T is described in ClinVar as [Likely_benign]. Clinvar id is 760451.Status of the report is criteria_provided_single_submitter, 1 stars.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
MUC4NM_018406.7 linkuse as main transcriptc.13925-4G>A splice_region_variant, splice_polypyrimidine_tract_variant, intron_variant ENST00000463781.8
MUC4NM_004532.6 linkuse as main transcriptc.1217-4G>A splice_region_variant, splice_polypyrimidine_tract_variant, intron_variant
MUC4NM_138297.5 linkuse as main transcriptc.1064-4G>A splice_region_variant, splice_polypyrimidine_tract_variant, intron_variant

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
MUC4ENST00000463781.8 linkuse as main transcriptc.13925-4G>A splice_region_variant, splice_polypyrimidine_tract_variant, intron_variant 5 NM_018406.7 A2Q99102-1

Frequencies

GnomAD3 genomes
AF:
0.000329
AC:
50
AN:
152160
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000724
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000196
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.000193
Gnomad SAS
AF:
0.000207
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.000603
Gnomad OTH
AF:
0.000479
GnomAD3 exomes
AF:
0.000450
AC:
74
AN:
164344
Hom.:
0
AF XY:
0.000526
AC XY:
46
AN XY:
87514
show subpopulations
Gnomad AFR exome
AF:
0.000108
Gnomad AMR exome
AF:
0.000273
Gnomad ASJ exome
AF:
0.000117
Gnomad EAS exome
AF:
0.000165
Gnomad SAS exome
AF:
0.000469
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.000770
Gnomad OTH exome
AF:
0.000437
GnomAD4 exome
AF:
0.000373
AC:
525
AN:
1409238
Hom.:
1
Cov.:
34
AF XY:
0.000383
AC XY:
267
AN XY:
696284
show subpopulations
Gnomad4 AFR exome
AF:
0.000125
Gnomad4 AMR exome
AF:
0.000244
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.0000548
Gnomad4 SAS exome
AF:
0.000474
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.000427
Gnomad4 OTH exome
AF:
0.000154
GnomAD4 genome
AF:
0.000328
AC:
50
AN:
152278
Hom.:
0
Cov.:
32
AF XY:
0.000282
AC XY:
21
AN XY:
74446
show subpopulations
Gnomad4 AFR
AF:
0.0000722
Gnomad4 AMR
AF:
0.000196
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.000193
Gnomad4 SAS
AF:
0.000207
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.000603
Gnomad4 OTH
AF:
0.000474
Alfa
AF:
0.000351
Hom.:
0
Bravo
AF:
0.000257

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 testingLabcorp Genetics (formerly Invitae), LabcorpJul 31, 2018- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.85
CADD
Benign
1.9
DANN
Benign
0.43

Splicing

Name
Calibrated prediction
Score
Prediction
dbscSNV1_ADA
Benign
0.000014
dbscSNV1_RF
Benign
0.0
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: rs189235965; hg19: chr3-195491039; API