4-70481045-G-A

Variant names:

• chr4-70481045-G-A
• rs1024669246
• NM_152291.3:c.301G>A

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 2P and 2B. PM2 BP4_Moderate

The NM_152291.3(MUC7):​c.301G>A​(p.Val101Ile) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000558 in 1,613,934 control chromosomes in the GnomAD database, with no homozygous occurrence. 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 Uncertain significance (★).

• Frequency:
  • Genomes: 𝑓 0.000039 (0 hom., cov: 32)
  • Exomes 𝑓: 0.0000021 (0 hom.)
• Consequence: MUC7 NM_152291.3 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: -0.303
• Publications: 0 publications found

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]

ACMG classification

Our verdict: Uncertain_significance. The variant received 0 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.07818031).

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.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	MUC7	NM_152291.3	MANE Select	c.301G>A	p.Val101Ile	missense	Exon 3 of 3	NP_689504.2	Q8TAX7
	MUC7	NM_001145006.2		c.301G>A	p.Val101Ile	missense	Exon 4 of 4	NP_001138478.1	Q8TAX7
	MUC7	NM_001145007.2		c.301G>A	p.Val101Ile	missense	Exon 4 of 4	NP_001138479.1	Q8TAX7

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	MUC7	ENST00000304887.6	TSL:1 MANE Select	c.301G>A	p.Val101Ile	missense	Exon 3 of 3	ENSP00000302021.5	Q8TAX7
	MUC7	ENST00000413702.5	TSL:4	c.301G>A	p.Val101Ile	missense	Exon 4 of 4	ENSP00000407422.1	Q8TAX7
	MUC7	ENST00000456088.5	TSL:4	c.301G>A	p.Val101Ile	missense	Exon 4 of 4	ENSP00000400585.1	Q8TAX7

Frequencies

GnomAD3 genomes AF: 0.0000394 AC: 6 AN: 152110 Hom.: 0 Cov.: 32

Gnomad AFR AF: 0.0000966

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.0000655

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: 0.000478

GnomAD2 exomes AF: 0.00000398 AC: 1 AN: 251088 AF XY: 0.00000737

Gnomad AFR exome AF: 0.0000615

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 AF: 0.00000205 AC: 3 AN: 1461824 Hom.: 0 Cov.: 34 AF XY: 0.00000138 AC XY: 1 AN XY: 727204

African (AFR) AF: 0.00 AC: 0 AN: 33480

American (AMR) AF: 0.0000224 AC: 1 AN: 44724

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26136

East Asian (EAS) AF: 0.00 AC: 0 AN: 39644

South Asian (SAS) AF: 0.00 AC: 0 AN: 86258

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53420

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5768

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 1111998

Other (OTH) AF: 0.0000331 AC: 2 AN: 60396

GnomAD4 genome AF: 0.0000394 AC: 6 AN: 152110 Hom.: 0 Cov.: 32 AF XY: 0.0000404 AC XY: 3 AN XY: 74308

African (AFR) AF: 0.0000966 AC: 4 AN: 41426

American (AMR) AF: 0.0000655 AC: 1 AN: 15264

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 3472

East Asian (EAS) AF: 0.00 AC: 0 AN: 5186

South Asian (SAS) AF: 0.00 AC: 0 AN: 4818

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 10608

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 316

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 68018

Other (OTH) AF: 0.000478 AC: 1 AN: 2090

Alfa AF: 0.00 Hom.: 0

Bravo AF: 0.0000642

ClinVar

ClinVar submissions

Significance: Uncertain significance

Revision: criteria provided, single submitter

Pathogenic	VUS	Benign	Condition
-	1	-	not specified (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.11
BayesDel_addAF	Benign	-0.46	T
BayesDel_noAF	Benign	-0.66
CADD	Benign	1.5
DANN	Benign	0.72
DEOGEN2	Benign	0.020	T
Eigen	Benign	-1.1
Eigen_PC	Benign	-1.1
FATHMM_MKL	Benign	0.0096	N
LIST_S2	Benign	0.39	T
M_CAP	Benign	0.0018	T
MetaRNN	Benign	0.078	T
MetaSVM	Benign	-1.0	T
MutationAssessor	Benign	0.81	L
PhyloP100		-0.30
PrimateAI	Benign	0.24	T
PROVEAN	Benign	-0.34	N
REVEL	Benign	0.013
Sift	Benign	0.097	T
Sift4G	Benign	0.29	T
Polyphen		0.22	B
Vest4		0.050
MutPred		0.19		Loss of glycosylation at T104 (P = 0.0523)
MVP		0.23
MPC		0.16
ClinPred		0.018	T
GERP RS		0.69
Varity_R		0.045
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

Other links and lift over

dbSNP: rs1024669246; hg19: chr4-71346762;