Variant chr6-30986561-C-T details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Benign. Variant got -8 ACMG points: 0P and 8B. BP4_StrongBS2

The NM_001010909.5(MUC21):c.386C>T(p.Ser129Phe) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000387 in 1,577,062 control chromosomes in the GnomAD database, including 2 homozygotes. In-silico tool predicts a benign outcome for this variant. 14/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.00024 ( 0 hom., cov: 33)

Exomes 𝑓: 0.00040 ( 2 hom. )

Consequence

MUC21
NM_001010909.5 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.310

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]

MUC21 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -8 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.010586053).

BS2

High Homozygotes in GnomAdExome4 at 2 AR gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
MUC21	NM_001010909.5 linkuse as main transcript	c.386C>T	p.Ser129Phe	missense_variant	2/3	ENST00000376296.3
MUC21	NR_130720.3 linkuse as main transcript	n.769C>T		non_coding_transcript_exon_variant	2/3

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
MUC21	ENST00000376296.3 linkuse as main transcript	c.386C>T	p.Ser129Phe	missense_variant	2/3	1	NM_001010909.5	P1	Q5SSG8-1
MUC21	ENST00000486149.2 linkuse as main transcript	c.-977C>T		5_prime_UTR_variant	2/3	1

Frequencies

GnomAD3 genomes

AF:

0.000237

AC:

AN:

151604

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000242

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.000579

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00321

Gnomad NFE

AF:

0.000442

Gnomad OTH

AF:

0.000480

GnomAD3 exomes

AF:

0.000450

AC:

113

AN:

251242

Hom.:

AF XY:

0.000420

AC XY:

AN XY:

135788

show subpopulations

Gnomad AFR exome

AF:

0.0000615

Gnomad AMR exome

AF:

0.000376

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00196

Gnomad SAS exome

AF:

0.0000980

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.000484

Gnomad OTH exome

AF:

0.000815

GnomAD4 exome

AF:

0.000403

AC:

574

AN:

1425344

Hom.:

Cov.:

171

AF XY:

0.000392

AC XY:

278

AN XY:

708594

show subpopulations

Gnomad4 AFR exome

AF:

0.000313

Gnomad4 AMR exome

AF:

0.000354

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00130

Gnomad4 SAS exome

AF:

0.0000593

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.000422

Gnomad4 OTH exome

AF:

0.000431

GnomAD4 genome

AF:

0.000237

AC:

AN:

151718

Hom.:

Cov.:

AF XY:

0.000270

AC XY:

AN XY:

74196

show subpopulations

Gnomad4 AFR

AF:

0.0000242

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.000580

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.000442

Gnomad4 OTH

AF:

0.000475

Alfa

AF:

0.000420

Hom.:

ESP6500AA

AF:

0.000227

AC:

ESP6500EA

AF:

0.000465

AC:

ExAC

AF:

0.000660

AC:

EpiCase

AF:

0.000109

EpiControl

AF:

0.000652

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Apr 06, 2024

The c.386C>T (p.S129F) alteration is located in exon 2 (coding exon 2) of the MUC21 gene. This alteration results from a C to T substitution at nucleotide position 386, causing the serine (S) at amino acid position 129 to be replaced by a phenylalanine (F). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.19

BayesDel_addAF

Benign

-0.51

BayesDel_noAF

Benign

-0.52

CADD

Benign

DANN

Benign

0.96

DEOGEN2

Benign

0.015

Eigen

Benign

-0.38

Eigen_PC

Benign

-0.58

FATHMM_MKL

Benign

0.064

LIST_S2

Benign

0.61

M_CAP

Benign

0.0052

MetaRNN

Benign

0.011

MetaSVM

Benign

-0.90

MutationAssessor

Benign

2.0

MutationTaster

Benign

1.0

N;N

PrimateAI

Benign

0.20

PROVEAN

Uncertain

-2.8

REVEL

Benign

0.077

Sift

Uncertain

0.0040

Sift4G

Uncertain

0.0030

Polyphen

1.0

Vest4

0.13

MVP

0.092

MPC

0.15

ClinPred

0.070

GERP RS

2.4

Varity_R

0.16

gMVP

0.053

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.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over