dbSNP rs1445903770: MCC:p.Glu906Lys (chr5-113043570-C-T) – ACMG Classification: Uncertain_significance (0 pts)

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_001085377.2(MCC):c.2716G>A(p.Glu906Lys) variant causes a missense change. The variant allele was found at a frequency of 0.00000205 in 1,461,804 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 33)

Exomes 𝑓: 0.0000021 ( 0 hom. )

Consequence

MCC
NM_001085377.2 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 5.33

Publications

0 publications found

Variant links:

Genes affected

MCC (HGNC:6935): (MCC regulator of WNT signaling pathway) This gene is a candidate colorectal tumor suppressor gene that is thought to negatively regulate cell cycle progression. The orthologous gene in the mouse expresses a phosphoprotein associated with the plasma membrane and membrane organelles, and overexpression of the mouse protein inhibits entry into S phase. Multiple transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Jul 2008]

MCC links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

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=0.13807943).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
MCC	NM_001085377.2 link	c.2716G>A	p.Glu906Lys	missense_variant	Exon 17 of 19	ENST00000408903.7	NP_001078846.2	P23508-2
MCC	NM_002387.3 link	c.2146G>A	p.Glu716Lys	missense_variant	Exon 15 of 17		NP_002378.2	P23508-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
MCC	ENST00000408903.7 link	c.2716G>A	p.Glu906Lys	missense_variant	Exon 17 of 19	2	NM_001085377.2	ENSP00000386227.3	P23508-2
MCC	ENST00000302475.9 link	c.2146G>A	p.Glu716Lys	missense_variant	Exon 15 of 17	1		ENSP00000305617.4	P23508-1
MCC	ENST00000515367.6 link	c.1957G>A	p.Glu653Lys	missense_variant	Exon 15 of 17	5		ENSP00000421615.2	D6REY2

Frequencies

GnomAD3 genomes

Cov.:

GnomAD2 exomes

AF:

0.0000119

AC:

AN:

251252

AF XY:

0.00

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.0000868

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:

AN:

1461804

Hom.:

Cov.:

AF XY:

0.00000138

AC XY:

AN XY:

727206

show subpopulations

⚠️ The allele balance in gnomAD version 4 Exomes is significantly skewed from the expected value of 0.5.

African (AFR)

AF:

0.00

AC:

AN:

33480

American (AMR)

AF:

0.0000447

AC:

AN:

44706

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26134

East Asian (EAS)

AF:

0.00

AC:

AN:

39698

South Asian (SAS)

AF:

0.00

AC:

AN:

86230

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53410

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5768

European-Non Finnish (NFE)

AF:

8.99e-7

AC:

AN:

1111986

Other (OTH)

AF:

0.00

AC:

AN:

60392

⚠️ The allele balance in gnomAD4 Exomes is highly skewed from 0.5 (p-value = 0.000000), which strongly suggests a high chance of mosaicism in these individuals.

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.342

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

Cov.:

Alfa

AF:

0.0000612

Hom.:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Aug 12, 2022

Ambry Genetics

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

The c.2716G>A (p.E906K) alteration is located in exon 17 (coding exon 17) of the MCC gene. This alteration results from a G to A substitution at nucleotide position 2716, causing the glutamic acid (E) at amino acid position 906 to be replaced by a lysine (K). 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

0.23

BayesDel_addAF

Benign

-0.26

BayesDel_noAF

Benign

-0.41

CADD

Uncertain

(source)

DANN

Uncertain

1.0

DEOGEN2

Benign

0.13

T;.;.

Eigen

Benign

-0.40

Eigen_PC

Benign

-0.24

FATHMM_MKL

Uncertain

0.93

LIST_S2

Uncertain

0.92

D;D;D

M_CAP

Benign

0.014

MetaRNN

Benign

0.14

T;T;T

MetaSVM

Benign

-1.1

MutationAssessor

Benign

0.34

N;.;.

PhyloP100

5.3

PrimateAI

Benign

0.45

PROVEAN

Benign

-0.96

N;N;N

REVEL

Benign

0.051

Sift

Uncertain

0.010

D;D;D

Sift4G

Benign

0.086

T;T;T

Polyphen

0.17

B;.;B

Vest4

0.38

MVP

0.27

MPC

0.095

ClinPred

0.22

GERP RS

5.3

Varity_R

0.17

gMVP

0.15

Mutation Taster

=80/20

polymorphism

(source)

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

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rs1445903770

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over