11-1236229-G-T

Variant names:

• chr11-1236229-G-T
• rs2735727
• NM_002458.3:c.2881-157G>T

Variant summary

Our verdict is Likely benign. The variant received -2 ACMG points: 2P and 4B. PM2 BP4_Strong

The NM_002458.3(MUC5B):​c.2881-157G>T variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency:
  • Genomes: not found (cov: 33)
  • Exomes 𝑓: 0.0 (0 hom.)
  • Failed GnomAD Quality Control
• Consequence: MUC5B NM_002458.3 intron
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -3.48
• Publications: 14 publications found

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]

MUC5B Gene-Disease associations (from GenCC):

• interstitial lung disease

  Inheritance: AR Classification: LIMITED Submitted by: Ambry Genetics

ACMG classification

Our verdict: Likely_benign. The variant received -2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.95).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
MUC5B	NM_002458.3	c.2881-157G>T		intron_variant	Intron 23 of 48	ENST00000529681.5	NP_002449.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
MUC5B	ENST00000529681.5	c.2881-157G>T		intron_variant	Intron 23 of 48	5	NM_002458.3	ENSP00000436812.1
MUC5B	ENST00000525715.5	n.2939-157G>T		intron_variant	Intron 23 of 25	1

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome Data not reliable, filtered out with message: AC0 AF: 0.00 AC: 0 AN: 485852 Hom.: 0 AF XY: 0.00 AC XY: 0 AN XY: 249968

African (AFR) AF: 0.00 AC: 0 AN: 12548

American (AMR) AF: 0.00 AC: 0 AN: 15254

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 13200

East Asian (EAS) AF: 0.00 AC: 0 AN: 28404

South Asian (SAS) AF: 0.00 AC: 0 AN: 36042

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 28560

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 2040

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 323062

Other (OTH) AF: 0.00 AC: 0 AN: 26742

GnomAD4 genome Cov.: 33

Alfa AF: 0.00 Hom.: 14783

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.95
CADD	Benign	0.087
DANN	Benign	0.57
PhyloP100		-3.5

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

Other links and lift over

dbSNP: rs2735727; hg19: chr11-1257459;