11-1227101-C-T

Variant summary

Our verdict is Likely benign. Variant got -3 ACMG points: 1P and 4B. PP3BS2

The NM_002458.3(MUC5B):​c.532C>T​(p.Arg178Trp) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000186 in 1,612,422 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 35)
Exomes 𝑓: 0.000020 ( 0 hom. )

Consequence

MUC5B
NM_002458.3 missense

Scores

3
4
11

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 2.12
Variant links:
Genes affected
MUC5B (HGNC:7516): (mucin 5B, oligomeric mucus/gel-forming) This gene encodes a member of the mucin family of proteins, which are highly glycosylated macromolecular components of mucus secretions. This family member is the major gel-forming mucin in mucus. It is a major contributor to the lubricating and viscoelastic properties of whole saliva, normal lung mucus and cervical mucus. This gene has been found to be up-regulated in some human diseases, including sinus mucosa of chronic rhinosinusitis (CRS), CRS with nasal polyposis, chronic obstructive pulmonary disease (COPD) and H. pylori-associated gastric disease, and it may be involved in the pathogenesis of these diseases. [provided by RefSeq, Jul 2010]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -3 ACMG points.

PP3
MetaRNN computational evidence supports a deleterious effect, 0.757
BS2
High AC in GnomAdExome4 at 29 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
MUC5BNM_002458.3 linkuse as main transcriptc.532C>T p.Arg178Trp missense_variant 5/49 ENST00000529681.5

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
MUC5BENST00000529681.5 linkuse as main transcriptc.532C>T p.Arg178Trp missense_variant 5/495 NM_002458.3 P1
MUC5BENST00000525715.5 linkuse as main transcriptn.590C>T non_coding_transcript_exon_variant 5/261

Frequencies

GnomAD3 genomes
AF:
0.00000657
AC:
1
AN:
152246
Hom.:
0
Cov.:
35
show subpopulations
Gnomad AFR
AF:
0.0000241
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:
0.00
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000243
AC:
6
AN:
247116
Hom.:
0
AF XY:
0.0000371
AC XY:
5
AN XY:
134732
show subpopulations
Gnomad AFR exome
AF:
0.0000655
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.000131
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00000896
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000199
AC:
29
AN:
1460176
Hom.:
0
Cov.:
34
AF XY:
0.0000207
AC XY:
15
AN XY:
726334
show subpopulations
Gnomad4 AFR exome
AF:
0.0000598
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.000220
Gnomad4 FIN exome
AF:
0.0000192
Gnomad4 NFE exome
AF:
0.00000630
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.00000657
AC:
1
AN:
152246
Hom.:
0
Cov.:
35
AF XY:
0.00
AC XY:
0
AN XY:
74380
show subpopulations
Gnomad4 AFR
AF:
0.0000241
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:
0.00
Gnomad4 OTH
AF:
0.00
Bravo
AF:
0.0000227
ExAC
AF:
0.0000497
AC:
6

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not specified Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingAmbry GeneticsMar 15, 2024The c.532C>T (p.R178W) alteration is located in exon 5 (coding exon 5) of the MUC5B gene. This alteration results from a C to T substitution at nucleotide position 532, causing the arginine (R) at amino acid position 178 to be replaced by a tryptophan (W). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.15
BayesDel_addAF
Benign
-0.12
T
BayesDel_noAF
Benign
-0.17
CADD
Uncertain
24
DANN
Benign
0.92
DEOGEN2
Benign
0.039
T
Eigen
Benign
0.11
Eigen_PC
Benign
-0.068
FATHMM_MKL
Benign
0.43
N
LIST_S2
Uncertain
0.86
D
M_CAP
Uncertain
0.16
D
MetaRNN
Pathogenic
0.76
D
MetaSVM
Benign
-0.77
T
MutationAssessor
Uncertain
2.3
M
MutationTaster
Benign
1.0
N;N
PrimateAI
Uncertain
0.56
T
PROVEAN
Pathogenic
-7.1
D
REVEL
Benign
0.28
Sift
Pathogenic
0.0
D
Polyphen
1.0
D
Vest4
0.48
MutPred
0.75
Loss of MoRF binding (P = 0.1672);
MVP
0.23
ClinPred
0.76
D
GERP RS
1.6
Varity_R
0.59
gMVP
0.82

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.080
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: rs778396604; hg19: chr11-1248331; API