Genetic Variant MUC5AC:p.Ala4532Ala (chr11-1191741-C-A) – ACMG Classification: Likely_benign (-5 pts)

Variant summary

Our verdict is Likely benign. The variant received -5 ACMG points: 0P and 5B. BP4_StrongBP7

The NM_001304359.2(MUC5AC):c.13596C>A(p.Ala4532Ala) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Synonymous variant affecting the same amino acid position (i.e. A4532A) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.0000078 ( 0 hom., cov: 27)

Exomes 𝑓: 0.000014 ( 0 hom. )

Failed GnomAD Quality Control

Consequence

MUC5AC
NM_001304359.2 synonymous

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: -4.34

Publications

0 publications found

Variant links:

Genes affected

MUC5AC (HGNC:7515): (mucin 5AC, oligomeric mucus/gel-forming) Predicted to be an extracellular matrix structural constituent. Involved in phosphatidylinositol-mediated signaling. Located in cytoplasm; extracellular space; and mucus layer. Implicated in dry eye syndrome. Biomarker of several diseases, including Sjogren's syndrome; biliary tract disease (multiple); cystic fibrosis; eye disease (multiple); and pancreatic cancer (multiple). [provided by Alliance of Genome Resources, Apr 2022]

MUC5AC links:

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ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -5 ACMG points.

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.82).

BP7

Synonymous conserved (PhyloP=-4.34 with no splicing effect.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001304359.2. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	MUC5AC	NM_001304359.2	MANE Select	c.13596C>A	p.Ala4532Ala	synonymous	Exon 31 of 49	NP_001291288.1	P98088

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	MUC5AC	ENST00000621226.2	TSL:5 MANE Select	c.13596C>A	p.Ala4532Ala	synonymous	Exon 31 of 49	ENSP00000485659.1	P98088

Frequencies

GnomAD3 genomes

AF:

0.00000781

AC:

AN:

128008

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

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:

0.0000163

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.000138

AC:

AN:

173362

AF XY:

0.000157

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.0000342

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.000778

Gnomad NFE exome

AF:

0.000241

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

Data not reliable, filtered out with message: AS_VQSR

AF:

0.0000137

AC:

AN:

584296

Hom.:

Cov.:

AF XY:

0.0000188

AC XY:

AN XY:

318734

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

16888

American (AMR)

AF:

0.00

AC:

AN:

40078

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

20430

East Asian (EAS)

AF:

0.00

AC:

AN:

35012

South Asian (SAS)

AF:

0.00

AC:

AN:

66824

European-Finnish (FIN)

AF:

0.00

AC:

AN:

35614

Middle Eastern (MID)

AF:

0.00

AC:

AN:

4096

European-Non Finnish (NFE)

AF:

0.0000210

AC:

AN:

333572

Other (OTH)

AF:

0.0000315

AC:

AN:

31782

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.444

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

GnomAD4 genome

Data not reliable, filtered out with message: AS_VQSR

AF:

0.00000781

AC:

AN:

128064

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

62072

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

32754

American (AMR)

AF:

0.00

AC:

AN:

11992

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3248

East Asian (EAS)

AF:

0.00

AC:

AN:

4214

South Asian (SAS)

AF:

0.00

AC:

AN:

3910

European-Finnish (FIN)

AF:

0.00

AC:

AN:

7962

Middle Eastern (MID)

AF:

0.00

AC:

AN:

170

European-Non Finnish (NFE)

AF:

0.0000163

AC:

AN:

61294

Other (OTH)

AF:

0.00

AC:

AN:

1734

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.425

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Alfa

AF:

0.00

Hom.:

Bravo

AF:

0.00000378

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.82

CADD

Benign

0.38

(source)

DANN

Benign

0.42

PhyloP100

-4.3

Splicing

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over