4-153394335-C-T

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The NM_032117.4(MND1):​c.350C>T​(p.Thr117Met) variant causes a missense, splice region change. The variant allele was found at a frequency of 0.0000956 in 1,610,140 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 2/3 splice prediction tools predicting alterations to normal splicing. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.00041 ( 0 hom., cov: 31)
Exomes 𝑓: 0.000063 ( 0 hom. )

Consequence

MND1
NM_032117.4 missense, splice_region

Scores

3
8
8
Splicing: ADA: 0.9901
2

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 5.05
Variant links:
Genes affected
MND1 (HGNC:24839): (meiotic nuclear divisions 1) The product of the MND1 gene associates with HOP2 (MIM 608665) to form a stable heterodimeric complex that binds DNA and stimulates the recombinase activity of RAD51 (MIM 179617) and DMC1 (MIM 602721) (Chi et al., 2007 [PubMed 17639080]). Both the MND1 and HOP2 genes are indispensable for meiotic recombination.[supplied by OMIM, Mar 2008]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 2 ACMG points.

PM2
Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
MND1NM_032117.4 linkc.350C>T p.Thr117Met missense_variant, splice_region_variant Exon 5 of 8 ENST00000240488.8 NP_115493.1 Q9BWT6
MND1NM_001253861.1 linkc.350C>T p.Thr117Met missense_variant, splice_region_variant Exon 5 of 7 NP_001240790.1 A0A087WTC6
MND1XM_005263275.3 linkc.350C>T p.Thr117Met missense_variant, splice_region_variant Exon 5 of 7 XP_005263332.1
MND1NR_045605.2 linkn.561C>T splice_region_variant, non_coding_transcript_exon_variant Exon 7 of 10

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
MND1ENST00000240488.8 linkc.350C>T p.Thr117Met missense_variant, splice_region_variant Exon 5 of 8 1 NM_032117.4 ENSP00000240488.3 Q9BWT6
ENSG00000288637ENST00000675079.1 linkc.2441C>T p.Thr814Met missense_variant, splice_region_variant Exon 15 of 18 ENSP00000502677.1 A0A6Q8PHG4

Frequencies

GnomAD3 genomes
AF:
0.000408
AC:
62
AN:
152086
Hom.:
0
Cov.:
31
show subpopulations
Gnomad AFR
AF:
0.00135
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000262
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.000207
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00316
Gnomad NFE
AF:
0.00
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.000156
AC:
39
AN:
250462
Hom.:
0
AF XY:
0.000111
AC XY:
15
AN XY:
135370
show subpopulations
Gnomad AFR exome
AF:
0.00148
Gnomad AMR exome
AF:
0.000146
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.000132
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000441
Gnomad OTH exome
AF:
0.000164
GnomAD4 exome
AF:
0.0000631
AC:
92
AN:
1457936
Hom.:
0
Cov.:
30
AF XY:
0.0000607
AC XY:
44
AN XY:
725364
show subpopulations
Gnomad4 AFR exome
AF:
0.00129
Gnomad4 AMR exome
AF:
0.000112
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000929
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000234
Gnomad4 OTH exome
AF:
0.000133
GnomAD4 genome
AF:
0.000407
AC:
62
AN:
152204
Hom.:
0
Cov.:
31
AF XY:
0.000390
AC XY:
29
AN XY:
74426
show subpopulations
Gnomad4 AFR
AF:
0.00135
Gnomad4 AMR
AF:
0.000262
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.000207
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.000122
Hom.:
0
Bravo
AF:
0.000450
ESP6500AA
AF:
0.00159
AC:
7
ESP6500EA
AF:
0.000116
AC:
1
ExAC
AF:
0.000165
AC:
20
EpiCase
AF:
0.0000545
EpiControl
AF:
0.0000594

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not specified Uncertain:1
Jun 06, 2023
Ambry Genetics
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

The c.350C>T (p.T117M) alteration is located in exon 5 (coding exon 5) of the MND1 gene. This alteration results from a C to T substitution at nucleotide position 350, causing the threonine (T) at amino acid position 117 to be replaced by a methionine (M). 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
0.11
BayesDel_addAF
Benign
-0.21
T
BayesDel_noAF
Benign
-0.11
CADD
Pathogenic
32
DANN
Pathogenic
1.0
DEOGEN2
Benign
0.097
T;T;T;T
Eigen
Pathogenic
0.81
Eigen_PC
Pathogenic
0.75
FATHMM_MKL
Uncertain
0.91
D
LIST_S2
Benign
0.53
T;T;D;T
M_CAP
Benign
0.015
T
MetaRNN
Benign
0.042
T;T;T;T
MetaSVM
Uncertain
0.17
D
MutationAssessor
Uncertain
2.4
.;M;.;.
PrimateAI
Uncertain
0.56
T
PROVEAN
Uncertain
-3.4
.;D;D;D
REVEL
Uncertain
0.54
Sift
Uncertain
0.0010
.;D;D;D
Sift4G
Uncertain
0.0020
D;D;D;D
Polyphen
1.0
.;D;.;.
Vest4
0.51
MVP
0.56
MPC
0.22
ClinPred
0.087
T
GERP RS
5.4
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Varity_R
0.45
gMVP
0.57

Splicing

Name
Calibrated prediction
Score
Prediction
dbscSNV1_ADA
Pathogenic
0.99
dbscSNV1_RF
Pathogenic
0.79
SpliceAI score (max)
0.030
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: rs112091834; hg19: chr4-154315487; API