chr4-70481399-C-T

Variant summary

Our verdict is Benign. The variant received -16 ACMG points: 0P and 16B. BP4_StrongBP6_Very_StrongBS2

The NM_152291.3(MUC7):​c.655C>T​(p.Pro219Ser) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00313 in 117,010 control chromosomes in the GnomAD database, including 2 homozygotes. In-silico tool predicts a benign outcome for this variant. 17/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: 𝑓 0.0031 ( 2 hom., cov: 26)
Exomes 𝑓: 0.0 ( 0 hom. )
Failed GnomAD Quality Control

Consequence

MUC7
NM_152291.3 missense

Scores

18

Clinical Significance

Likely benign criteria provided, multiple submitters, no conflicts B:2

Conservation

PhyloP100: -4.50

Publications

5 publications found
Variant links:
Genes affected
MUC7 (HGNC:7518): (mucin 7, secreted) This gene encodes a small salivary mucin, which is thought to play a role in facilitating the clearance of bacteria in the oral cavity and to aid in mastication, speech, and swallowing. The central domain of this glycoprotein contains tandem repeats, each composed of 23 amino acids. This antimicrobial protein has antibacterial and antifungal activity. The most common allele contains 6 repeats, and some alleles may be associated with susceptibility to asthma. Alternatively spliced transcript variants with different 5' UTR, but encoding the same protein, have been found for this gene. [provided by RefSeq, Oct 2014]

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ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -16 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.0064270794).
BP6
Variant 4-70481399-C-T is Benign according to our data. Variant chr4-70481399-C-T is described in ClinVar as Likely_benign. ClinVar VariationId is 3150682.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BS2
High Homozygotes in GnomAd4 at 2 AR gene

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_152291.3. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
MUC7
NM_152291.3
MANE Select
c.655C>Tp.Pro219Ser
missense
Exon 3 of 3NP_689504.2Q8TAX7
MUC7
NM_001145006.2
c.655C>Tp.Pro219Ser
missense
Exon 4 of 4NP_001138478.1Q8TAX7
MUC7
NM_001145007.2
c.655C>Tp.Pro219Ser
missense
Exon 4 of 4NP_001138479.1Q8TAX7

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
MUC7
ENST00000304887.6
TSL:1 MANE Select
c.655C>Tp.Pro219Ser
missense
Exon 3 of 3ENSP00000302021.5Q8TAX7
MUC7
ENST00000413702.5
TSL:4
c.655C>Tp.Pro219Ser
missense
Exon 4 of 4ENSP00000407422.1Q8TAX7
MUC7
ENST00000456088.5
TSL:4
c.655C>Tp.Pro219Ser
missense
Exon 4 of 4ENSP00000400585.1Q8TAX7

Frequencies

GnomAD3 genomes
AF:
0.00311
AC:
364
AN:
116956
Hom.:
2
Cov.:
26
show subpopulations
Gnomad AFR
AF:
0.0119
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00106
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.000766
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00467
Gnomad NFE
AF:
0.0000352
Gnomad OTH
AF:
0.00246
GnomAD2 exomes
AF:
0.00000415
AC:
1
AN:
241052
AF XY:
0.00
show subpopulations
Gnomad AFR exome
AF:
0.0000658
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
Data not reliable, filtered out with message: AC0;AS_VQSR
AF:
0.00
AC:
0
AN:
1419724
Hom.:
0
Cov.:
34
AF XY:
0.00
AC XY:
0
AN XY:
706118
African (AFR)
AF:
0.00
AC:
0
AN:
30912
American (AMR)
AF:
0.00
AC:
0
AN:
43222
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
24642
East Asian (EAS)
AF:
0.00
AC:
0
AN:
37968
South Asian (SAS)
AF:
0.00
AC:
0
AN:
85832
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
51268
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5500
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
1083304
Other (OTH)
AF:
0.00
AC:
0
AN:
57076
GnomAD4 genome
AF:
0.00313
AC:
366
AN:
117010
Hom.:
2
Cov.:
26
AF XY:
0.00343
AC XY:
195
AN XY:
56796
show subpopulations
⚠️ The allele balance in gnomAD version 4 Genomes is significantly skewed from the expected value of 0.5.
African (AFR)
AF:
0.0119
AC:
344
AN:
28918
American (AMR)
AF:
0.00106
AC:
12
AN:
11306
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
2990
East Asian (EAS)
AF:
0.000769
AC:
3
AN:
3902
South Asian (SAS)
AF:
0.00
AC:
0
AN:
3418
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
7110
Middle Eastern (MID)
AF:
0.00515
AC:
1
AN:
194
European-Non Finnish (NFE)
AF:
0.0000352
AC:
2
AN:
56828
Other (OTH)
AF:
0.00244
AC:
4
AN:
1642
⚠️ The allele balance in gnomAD version 4 Genomes is significantly skewed from the expected value of 0.5. (p-value = 0), which strongly suggests a high chance of mosaicism in these individuals.
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.363
Heterozygous variant carriers
0
15
29
44
58
73
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Genome Hom
Variant carriers
0
4
8
12
16
20
<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:
0.00989
Hom.:
9
ExAC
AF:
0.0000494
AC:
6

ClinVar

ClinVar submissions
Significance:Likely benign
Revision:criteria provided, multiple submitters, no conflicts
View on ClinVar
Pathogenic
VUS
Benign
Condition
-
-
1
not provided (1)
-
-
1
not specified (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.057
BayesDel_addAF
Benign
-0.31
T
BayesDel_noAF
Benign
-0.68
CADD
Benign
0.0030
DANN
Benign
0.11
DEOGEN2
Benign
0.0059
T
Eigen
Benign
-1.9
Eigen_PC
Benign
-2.0
FATHMM_MKL
Benign
0.0059
N
LIST_S2
Benign
0.40
T
M_CAP
Benign
0.0021
T
MetaRNN
Benign
0.0064
T
MetaSVM
Benign
-1.1
T
MutationAssessor
Benign
-0.55
N
PhyloP100
-4.5
PrimateAI
Benign
0.33
T
PROVEAN
Benign
0.46
N
REVEL
Benign
0.035
Sift
Benign
0.98
T
Sift4G
Benign
1.0
T
Polyphen
0.0
B
Vest4
0.093
MVP
0.17
MPC
0.025
ClinPred
0.035
T
GERP RS
-3.8
Varity_R
0.016
gMVP
0.037
Mutation Taster
=100/0
polymorphism

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

Other links and lift over

dbSNP: rs41454651; hg19: chr4-71347116; COSMIC: COSV59217029; COSMIC: COSV59217029; API