6-31026269-A-T

Variant summary

Our verdict is Likely benign. Variant got -4 ACMG points: 0P and 4B. BP4_Strong

The NM_001395414.1(MUC22):​c.838A>T​(p.Ile280Phe) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000298 in 113,924 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/18 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.00030 ( 0 hom., cov: 29)
Exomes 𝑓: 0.000086 ( 4 hom. )
Failed GnomAD Quality Control

Consequence

MUC22
NM_001395414.1 missense

Scores

1
14

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: -2.04
Variant links:
Genes affected
MUC22 (HGNC:39755): (mucin 22) Predicted to be integral component of membrane. [provided by Alliance of Genome Resources, Apr 2022]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -4 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.02104342).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
MUC22NM_001395414.1 linkuse as main transcriptc.838A>T p.Ile280Phe missense_variant 2/4 ENST00000561890.1
MUC22NM_001318484.1 linkuse as main transcriptc.847A>T p.Ile283Phe missense_variant 3/5
MUC22NM_001198815.1 linkuse as main transcriptc.838A>T p.Ile280Phe missense_variant 3/5

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
MUC22ENST00000561890.1 linkuse as main transcriptc.838A>T p.Ile280Phe missense_variant 2/42 NM_001395414.1 P1

Frequencies

GnomAD3 genomes
AF:
0.000299
AC:
34
AN:
113818
Hom.:
0
Cov.:
29
show subpopulations
Gnomad AFR
AF:
0.000350
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0000925
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00144
Gnomad SAS
AF:
0.00112
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.000219
Gnomad OTH
AF:
0.00
GnomAD4 exome
Data not reliable, filtered out with message: AS_VQSR
AF:
0.0000858
AC:
99
AN:
1154410
Hom.:
4
Cov.:
64
AF XY:
0.000114
AC XY:
65
AN XY:
569078
show subpopulations
Gnomad4 AFR exome
AF:
0.000171
Gnomad4 AMR exome
AF:
0.000140
Gnomad4 ASJ exome
AF:
0.0000474
Gnomad4 EAS exome
AF:
0.000273
Gnomad4 SAS exome
AF:
0.000261
Gnomad4 FIN exome
AF:
0.0000430
Gnomad4 NFE exome
AF:
0.0000621
Gnomad4 OTH exome
AF:
0.000123
GnomAD4 genome
AF:
0.000298
AC:
34
AN:
113924
Hom.:
0
Cov.:
29
AF XY:
0.000271
AC XY:
15
AN XY:
55252
show subpopulations
Gnomad4 AFR
AF:
0.000349
Gnomad4 AMR
AF:
0.0000925
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00145
Gnomad4 SAS
AF:
0.00112
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.000219
Gnomad4 OTH
AF:
0.00
ExAC
AF:
0.00138
AC:
23

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 submitterclinical testingAmbry GeneticsAug 16, 2022The c.838A>T (p.I280F) alteration is located in exon 3 (coding exon 2) of the MUC22 gene. This alteration results from a A to T substitution at nucleotide position 838, causing the isoleucine (I) at amino acid position 280 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
0.20
BayesDel_addAF
Benign
-0.35
T
BayesDel_noAF
Benign
-0.75
CADD
Benign
2.9
DANN
Benign
0.30
DEOGEN2
Benign
0.0060
T
FATHMM_MKL
Benign
0.012
N
LIST_S2
Benign
0.55
T
M_CAP
Benign
0.012
T
MetaRNN
Benign
0.021
T
MutationAssessor
Benign
-0.34
N
MutationTaster
Benign
1.0
N
PrimateAI
Benign
0.19
T
PROVEAN
Benign
-0.83
N
Sift
Benign
0.083
T
Sift4G
Uncertain
0.044
D
Vest4
0.045
MVP
0.17
GERP RS
0.50
Varity_R
0.073
gMVP
0.023

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: rs751295240; hg19: chr6-30994046; API