chr12-40482027-G-A

Position:

• chr12-40482027-G-A

Variant summary

Our verdict is Benign. Variant got -11 ACMG points: 0P and 11B. BP4_Strong BP6_Moderate BP7 BS2

The NM_173600.2(MUC19):​c.9075G>A​(p.Gly3025=) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000565 in 947,426 control chromosomes in the GnomAD database, including 53 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★).

• Frequency:
  • Genomes: 𝑓 0.0022 (25 hom., cov: 30)
  • Exomes 𝑓: 0.00027 (28 hom.)
• Consequence: MUC19 NM_173600.2 synonymous
• Clinical Significance: Likely benign criteria provided, single submitter B:1
• Conservation: PhyloP100: -1.56

Genes affected

MUC19 (HGNC:14362): (mucin 19, oligomeric) This gene encodes a member of the gel-forming mucin protein family. Mucin family members are glycoproteins that have tandem repeats which are extensively O-glycosylated. The structural features of mucin proteins are responsible for the gel-like properties of mucus. The encoded protein may be involved in disruption of the ocular surface in Sjogren syndrome. [provided by RefSeq, Apr 2014]

ACMG classification

Verdict is Benign. Variant got -11 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.98).
• BP6: Variant 12-40482027-G-A is Benign according to our data. Variant chr12-40482027-G-A is described in ClinVar as [Likely_benign]. Clinvar id is 2642867.Status of the report is criteria_provided_single_submitter, 1 stars.
• BP7: Synonymous conserved (PhyloP=-1.56 with no splicing effect.
• BS2: High Homozygotes in GnomAd4 at 25 gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
MUC19	NM_173600.2	c.9075G>A	p.Gly3025=	synonymous_variant	56/172

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
MUC19	ENST00000454784.10	c.9075G>A	p.Gly3025=	synonymous_variant	56/173	5		P1

Frequencies

GnomAD3 genomes AF: 0.00219 AC: 318 AN: 145518 Hom.: 25 Cov.: 30

Gnomad AFR AF: 0.00753

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.000919

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: 0.0000307

Gnomad OTH AF: 0.000512

GnomAD4 exome AF: 0.000271 AC: 217 AN: 801786 Hom.: 28 Cov.: 20 AF XY: 0.000221 AC XY: 82 AN XY: 370298

Gnomad4 AFR exome AF: 0.00824

Gnomad4 AMR exome AF: 0.00106

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: 0.0000996

Gnomad4 OTH exome AF: 0.000569

GnomAD4 genome AF: 0.00218 AC: 318 AN: 145640 Hom.: 25 Cov.: 30 AF XY: 0.00200 AC XY: 142 AN XY: 71142

Gnomad4 AFR AF: 0.00750

Gnomad4 AMR AF: 0.000918

Gnomad4 ASJ AF: 0.00

Gnomad4 EAS AF: 0.00

Gnomad4 SAS AF: 0.00

Gnomad4 FIN AF: 0.00

Gnomad4 NFE AF: 0.0000307

Gnomad4 OTH AF: 0.000506

Alfa AF: 0.000328 Hom.: 0

ClinVar

Significance: Likely benign

Submissions summary: Benign:1

Revision: criteria provided, single submitter

Submissions by phenotype

not provided Benign:1

Likely benign, criteria provided, single submitter

clinical testing

CeGaT Center for Human Genetics Tuebingen

Mar 01, 2022

MUC19: BP4, BP7 -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.98
CADD	Benign	1.7
DANN	Benign	0.19

Splicing

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

Publications

LitVar

Other links and lift over

dbSNP: rs191798371; hg19: chr12-40875829;