6-97178453-C-T

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_001350599.2(MMS22L):​c.2669G>A​(p.Arg890Gln) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000389 in 1,543,254 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/21 in silico tools predict a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 32)
Exomes 𝑓: 0.0000036 ( 0 hom. )

Consequence

MMS22L
NM_001350599.2 missense

Scores

19

Clinical Significance

Likely benign criteria provided, single submitter B:1

Conservation

PhyloP100: -0.711
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]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -2 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.029743373).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
MMS22LNM_001350599.2 linkuse as main transcriptc.2669G>A p.Arg890Gln missense_variant 18/25 ENST00000683635.1 NP_001337528.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
MMS22LENST00000683635.1 linkuse as main transcriptc.2669G>A p.Arg890Gln missense_variant 18/25 NM_001350599.2 ENSP00000508046.1 Q6ZRQ5
MMS22LENST00000275053.8 linkuse as main transcriptc.2669G>A p.Arg890Gln missense_variant 18/252 ENSP00000275053.4 Q6ZRQ5
MMS22LENST00000369251.6 linkuse as main transcriptc.2549G>A p.Arg850Gln missense_variant 16/232 ENSP00000358254.2 E2QRD4

Frequencies

GnomAD3 genomes
AF:
0.00000658
AC:
1
AN:
151988
Hom.:
0
Cov.:
32
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:
0.0000147
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.00000952
AC:
2
AN:
210144
Hom.:
0
AF XY:
0.0000175
AC XY:
2
AN XY:
114342
show subpopulations
Gnomad AFR exome
AF:
0.00
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:
0.0000200
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000359
AC:
5
AN:
1391266
Hom.:
0
Cov.:
27
AF XY:
0.00000434
AC XY:
3
AN XY:
690600
show subpopulations
Gnomad4 AFR exome
AF:
0.00
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:
0.00
Gnomad4 NFE exome
AF:
0.00000463
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.00000658
AC:
1
AN:
151988
Hom.:
0
Cov.:
32
AF XY:
0.0000135
AC XY:
1
AN XY:
74244
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:
0.0000147
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.0000313
Hom.:
0
Bravo
AF:
0.00000378
ExAC
AF:
0.0000165
AC:
2
Asia WGS
AF:
0.000582
AC:
2
AN:
3452

ClinVar

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

Submissions by phenotype

not specified Benign:1
Likely benign, criteria provided, single submitterclinical testingAmbry GeneticsNov 27, 2024This alteration is classified as likely benign based on a combination of the following: seen in unaffected individuals, population frequency, intact protein function, lack of segregation with disease, co-occurrence, RNA analysis, in silico models, amino acid conservation, lack of disease association in case-control studies, and/or the mechanism of disease or impacted region is inconsistent with a known cause of pathogenicity. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.068
BayesDel_addAF
Benign
-0.41
T
BayesDel_noAF
Benign
-0.81
CADD
Benign
0.17
DANN
Benign
0.72
DEOGEN2
Benign
0.00077
T;.
Eigen
Benign
-1.7
Eigen_PC
Benign
-1.7
FATHMM_MKL
Benign
0.0067
N
LIST_S2
Benign
0.77
T;T
M_CAP
Benign
0.0051
T
MetaRNN
Benign
0.030
T;T
MetaSVM
Benign
-0.98
T
MutationAssessor
Benign
-1.2
N;.
PrimateAI
Benign
0.19
T
PROVEAN
Benign
0.080
N;N
REVEL
Benign
0.010
Sift
Benign
0.85
T;T
Sift4G
Benign
0.17
T;T
Polyphen
0.0010
B;B
Vest4
0.057
MutPred
0.35
Gain of ubiquitination at K886 (P = 0.0704);.;
MVP
0.082
MPC
0.064
ClinPred
0.020
T
GERP RS
-8.9
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Varity_R
0.022
gMVP
0.11

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.010
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: rs778194658; hg19: chr6-97626329; COSMIC: COSV51523249; API