Variant 6-97173064-C-T details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_001350599.2(MMS22L):c.2838G>A(p.Met946Ile) variant causes a missense, splice region change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000684 in 1,608,372 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/23 in silico tools predict a benign outcome for this variant. 3/3 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000039 ( 0 hom., cov: 32)

Exomes 𝑓: 0.0000034 ( 0 hom. )

Consequence

MMS22L
NM_001350599.2 missense, splice_region

Scores

Splicing: ADA: 0.001894

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.56

Variant links:

Genes affected

MMS22L (HGNC:21475): (MMS22 like, DNA repair protein) The protein encoded by this gene forms a complex with tonsoku-like, DNA repair protein (TONSL), and this complex recognizes and repairs DNA double-strand breaks at sites of stalled or collapsed replication forks. The encoded protein also can bind with the histone-associated protein NFKBIL2 to help regulate the chromatin state at stalled replication forks. Finally, this gene appears to be overexpressed in most lung and esophageal cancers. Multiple transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Apr 2017]

MMS22L links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 0 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.07190776).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
MMS22L	NM_001350599.2 linkuse as main transcript	c.2838G>A	p.Met946Ile	missense_variant, splice_region_variant	19/25	ENST00000683635.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris
MMS22L	ENST00000683635.1 linkuse as main transcript	c.2838G>A	p.Met946Ile	missense_variant, splice_region_variant	19/25		NM_001350599.2	P1
MMS22L	ENST00000275053.8 linkuse as main transcript	c.2838G>A	p.Met946Ile	missense_variant, splice_region_variant	19/25	2		P1
MMS22L	ENST00000369251.6 linkuse as main transcript	c.2718G>A	p.Met906Ile	missense_variant, splice_region_variant	17/23	2

Frequencies

GnomAD3 genomes

AF:

0.0000395

AC:

AN:

152050

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000145

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:

0.00

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000122

AC:

AN:

245490

Hom.:

AF XY:

0.00

AC XY:

AN XY:

132528

show subpopulations

Gnomad AFR exome

AF:

0.000186

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:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000343

AC:

AN:

1456322

Hom.:

Cov.:

AF XY:

0.00000138

AC XY:

AN XY:

724260

show subpopulations

Gnomad4 AFR exome

AF:

0.000121

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.0000118

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

AF:

0.0000395

AC:

AN:

152050

Hom.:

Cov.:

AF XY:

0.0000404

AC XY:

AN XY:

74262

show subpopulations

Gnomad4 AFR

AF:

0.000145

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:

0.00

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.0000658

Hom.:

Bravo

AF:

0.0000529

ESP6500AA

AF:

0.000454

AC:

ESP6500EA

AF:

0.00

AC:

ExAC

AF:

0.0000165

AC:

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

Aug 15, 2023

The c.2838G>A (p.M946I) alteration is located in exon 19 (coding exon 18) of the MMS22L gene. This alteration results from a G to A substitution at nucleotide position 2838, causing the methionine (M) at amino acid position 946 to be replaced by an isoleucine (I). 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

Uncertain

0.50

BayesDel_addAF

Benign

-0.33

BayesDel_noAF

Benign

-0.48

CADD

Benign

DANN

Benign

0.92

DEOGEN2

Benign

0.00054

T;.

Eigen

Benign

-0.23

Eigen_PC

Benign

-0.0043

FATHMM_MKL

Benign

0.69

LIST_S2

Benign

0.80

T;T

M_CAP

Benign

0.0026

MetaRNN

Benign

0.072

T;T

MetaSVM

Benign

-1.0

MutationAssessor

Benign

1.7

L;.

MutationTaster

Benign

0.53

D;D

PrimateAI

Uncertain

0.57

PROVEAN

Benign

0.37

N;N

REVEL

Benign

0.067

Sift

Benign

0.97

T;T

Sift4G

Benign

1.0

T;T

Polyphen

0.0080

B;B

Vest4

0.23

MutPred

0.32

Gain of catalytic residue at M946 (P = 0.0971);.;

MVP

0.043

MPC

0.36

ClinPred

0.28

GERP RS

5.4

Varity_R

0.14

gMVP

0.18

Splicing

Name

Calibrated prediction

Score

Prediction

dbscSNV1_ADA

Benign

0.0019

dbscSNV1_RF

Benign

0.078

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