chr11-1226641-G-T

Variant summary

Our verdict is Likely benign. Variant got -5 ACMG points: 0P and 5B. BP4BS2

The NM_002458.3(MUC5B):​c.226G>T​(p.Val76Leu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000144 in 1,458,998 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 33)
Exomes 𝑓: 0.000014 ( 0 hom. )

Consequence

MUC5B
NM_002458.3 missense

Scores

6
12

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 2.34
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 -5 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.33606428).
BS2
High AC in GnomAdExome4 at 21 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
MUC5BNM_002458.3 linkuse as main transcriptc.226G>T p.Val76Leu missense_variant 4/49 ENST00000529681.5

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
MUC5BENST00000529681.5 linkuse as main transcriptc.226G>T p.Val76Leu missense_variant 4/495 NM_002458.3 P1
MUC5BENST00000525715.5 linkuse as main transcriptn.284G>T non_coding_transcript_exon_variant 4/261

Frequencies

GnomAD3 genomes
Cov.:
33
GnomAD3 exomes
AF:
0.00000821
AC:
2
AN:
243674
Hom.:
0
AF XY:
0.00000752
AC XY:
1
AN XY:
132948
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000182
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000144
AC:
21
AN:
1458998
Hom.:
0
Cov.:
34
AF XY:
0.0000110
AC XY:
8
AN XY:
725666
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:
0.0000189
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
33
TwinsUK
AF:
0.000270
AC:
1
ALSPAC
AF:
0.00
AC:
0

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 GeneticsJul 15, 2021The c.226G>T (p.V76L) alteration is located in exon 4 (coding exon 4) of the MUC5B gene. This alteration results from a G to T substitution at nucleotide position 226, causing the valine (V) at amino acid position 76 to be replaced by a leucine (L). 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
Uncertain
0.34
BayesDel_addAF
Benign
-0.19
T
BayesDel_noAF
Benign
-0.50
CADD
Benign
23
DANN
Benign
0.87
DEOGEN2
Benign
0.064
T
Eigen
Benign
0.18
Eigen_PC
Benign
0.091
FATHMM_MKL
Uncertain
0.88
D
LIST_S2
Benign
0.81
T
M_CAP
Benign
0.027
D
MetaRNN
Benign
0.34
T
MetaSVM
Benign
-1.0
T
MutationAssessor
Uncertain
2.4
M
MutationTaster
Benign
0.88
N;N
PrimateAI
Uncertain
0.65
T
PROVEAN
Uncertain
-2.9
D
REVEL
Benign
0.10
Sift
Uncertain
0.014
D
Polyphen
0.36
B
Vest4
0.29
MutPred
0.33
Loss of sheet (P = 0.1501);
MVP
0.082
ClinPred
0.17
T
GERP RS
2.8
Varity_R
0.25
gMVP
0.81

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.14
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: rs767460423; hg19: chr11-1247871; API