rs772843697

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 0P and 2B. BP6_Moderate

The ENST00000376296.3(MUC21):​c.665del​(p.Ala222ValfsTer221) variant causes a frameshift change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000621 in 144,824 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Benign (β˜…). Variant results in nonsense mediated mRNA decay.

Frequency

Genomes: 𝑓 0.000062 ( 0 hom., cov: 29)
Exomes 𝑓: 0.00014 ( 0 hom. )
Failed GnomAD Quality Control

Consequence

MUC21
ENST00000376296.3 frameshift

Scores

Not classified

Clinical Significance

Benign criteria provided, single submitter B:1

Conservation

PhyloP100: -1.67
Variant links:
Genes affected
MUC21 (HGNC:21661): (mucin 21, cell surface associated) This gene encodes a large membrane-bound glycoprotein which is a member of the mucin family. Mucins are O-glycosylated proteins that play an essential role in forming protective mucous barriers on epithelial surfaces. These proteins also play a role in intracellular signaling. The encoded protein contains an N-terminal signal sequence, an extracellular mucin domain, a stem domain, a transmembrane domain, and a C-terminal cytoplasmic tail domain. The mucin domain contains O-glycosylation sites and is polymorphic with isoforms containing a variable number of nonidentical proline-, threonine-, and serine-rich tandem repeats of 15 amino acids each. The aberrent expression of this gene is associated with lung adenocarcinoma. [provided by RefSeq, May 2017]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -2 ACMG points.

BP6
Variant 6-30986839-GC-G is Benign according to our data. Variant chr6-30986839-GC-G is described in ClinVar as [Benign]. Clinvar id is 243064.Status of the report is criteria_provided_single_submitter, 1 stars.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
MUC21NM_001010909.5 linkuse as main transcriptc.665del p.Ala222ValfsTer221 frameshift_variant 2/3 ENST00000376296.3 NP_001010909.2
MUC21NR_130720.3 linkuse as main transcriptn.1048del non_coding_transcript_exon_variant 2/3

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
MUC21ENST00000376296.3 linkuse as main transcriptc.665del p.Ala222ValfsTer221 frameshift_variant 2/31 NM_001010909.5 ENSP00000365473 P1Q5SSG8-1
MUC21ENST00000486149.2 linkuse as main transcriptc.-698del 5_prime_UTR_variant 2/31 ENSP00000457640

Frequencies

GnomAD3 genomes
AF:
0.0000621
AC:
9
AN:
144824
Hom.:
0
Cov.:
29
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:
0.000121
Gnomad OTH
AF:
0.000508
GnomAD3 exomes
AF:
0.000136
AC:
34
AN:
250912
Hom.:
0
AF XY:
0.000147
AC XY:
20
AN XY:
135658
show subpopulations
Gnomad AFR exome
AF:
0.0000616
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:
0.0000462
Gnomad NFE exome
AF:
0.000273
Gnomad OTH exome
AF:
0.000163
GnomAD4 exome
Data not reliable, filtered out with message: AS_VQSR
AF:
0.000138
AC:
199
AN:
1437852
Hom.:
0
Cov.:
180
AF XY:
0.000138
AC XY:
99
AN XY:
715034
show subpopulations
Gnomad4 AFR exome
AF:
0.0000307
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:
0.0000958
Gnomad4 NFE exome
AF:
0.000169
Gnomad4 OTH exome
AF:
0.000119
GnomAD4 genome
AF:
0.0000621
AC:
9
AN:
144824
Hom.:
0
Cov.:
29
AF XY:
0.0000426
AC XY:
3
AN XY:
70476
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.000121
Gnomad4 OTH
AF:
0.000508
Alfa
AF:
0.000169
Hom.:
0
EpiCase
AF:
0.0000545
EpiControl
AF:
0.000178

ClinVar

Significance: Benign
Submissions summary: Benign:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not specified Benign:1
Benign, criteria provided, single submitterresearchLupski Lab, Baylor-Hopkins CMG, Baylor College of MedicineNov 01, 2015Benign. This variant was found to be outside the region (chr6:32557483-35479574) linked to juvenile cataracts using SNP-based fine mapping. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction

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

Publications

LitVar

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs772843697; hg19: chr6-30954616; API