NM_032485.6:c.262G>A

Variant summary

Our verdict is Likely benign. The variant received -4 ACMG points: 0P and 4B. BP4_Strong

The NM_032485.6(MCM8):​c.262G>A​(p.Asp88Asn) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000193 in 1,603,442 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 16/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000053 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000016 ( 0 hom. )

Consequence

MCM8
NM_032485.6 missense

Scores

1
17

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 2.44

Publications

1 publications found
Variant links:
Genes affected
MCM8 (HGNC:16147): (minichromosome maintenance 8 homologous recombination repair factor) The protein encoded by this gene is one of the highly conserved mini-chromosome maintenance proteins (MCM) that are essential for the initiation of eukaryotic genome replication. The hexameric protein complex formed by the mini-chromosome maintenance proteins is a key component of the pre-replication complex and may be involved in the formation of replication forks and in the recruitment of other DNA replication related proteins. This protein contains the central domain that is conserved among the mini-chromosome maintenance proteins. The encoded protein may interact with other mini-chromosome maintenance proteins and play a role in DNA replication. This gene may be associated with length of reproductive lifespan and menopause. Alternatively spliced transcript variants encoding distinct isoforms have been described. [provided by RefSeq, Jul 2013]
MCM8 Gene-Disease associations (from GenCC):
  • premature ovarian failure 10
    Inheritance: AR, AD Classification: STRONG, MODERATE, LIMITED Submitted by: Ambry Genetics, Labcorp Genetics (formerly Invitae)
  • colorectal cancer
    Inheritance: AD Classification: LIMITED Submitted by: Ambry Genetics

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -4 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.065176606).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_032485.6. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
MCM8
NM_032485.6
MANE Select
c.262G>Ap.Asp88Asn
missense
Exon 4 of 19NP_115874.3
MCM8
NM_001281521.2
c.262G>Ap.Asp88Asn
missense
Exon 4 of 19NP_001268450.1Q9UJA3-4
MCM8
NM_001281520.2
c.262G>Ap.Asp88Asn
missense
Exon 4 of 19NP_001268449.1Q9UJA3-1

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
MCM8
ENST00000610722.4
TSL:1 MANE Select
c.262G>Ap.Asp88Asn
missense
Exon 4 of 19ENSP00000478141.1Q9UJA3-1
ENSG00000286235
ENST00000652720.1
c.262G>Ap.Asp88Asn
missense
Exon 4 of 24ENSP00000498784.1A0A494C100
MCM8
ENST00000378886.6
TSL:1
c.262G>Ap.Asp88Asn
missense
Exon 4 of 19ENSP00000368164.2Q9UJA3-4

Frequencies

GnomAD3 genomes
AF:
0.0000526
AC:
8
AN:
152202
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.000145
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000131
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
GnomAD2 exomes
AF:
0.0000359
AC:
9
AN:
250708
AF XY:
0.0000221
show subpopulations
Gnomad AFR exome
AF:
0.000370
Gnomad AMR exome
AF:
0.00
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:
0.000164
GnomAD4 exome
AF:
0.0000158
AC:
23
AN:
1451240
Hom.:
0
Cov.:
27
AF XY:
0.0000180
AC XY:
13
AN XY:
722632
show subpopulations
African (AFR)
AF:
0.000151
AC:
5
AN:
33218
American (AMR)
AF:
0.00
AC:
0
AN:
44580
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26012
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39628
South Asian (SAS)
AF:
0.000140
AC:
12
AN:
85844
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53200
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5740
European-Non Finnish (NFE)
AF:
0.00000363
AC:
4
AN:
1103004
Other (OTH)
AF:
0.0000333
AC:
2
AN:
60014
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.501
Heterozygous variant carriers
0
1
2
4
5
6
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
2
4
6
8
10
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
GnomAD4 genome
AF:
0.0000526
AC:
8
AN:
152202
Hom.:
0
Cov.:
32
AF XY:
0.0000538
AC XY:
4
AN XY:
74354
show subpopulations
African (AFR)
AF:
0.000145
AC:
6
AN:
41456
American (AMR)
AF:
0.000131
AC:
2
AN:
15280
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3468
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5202
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4826
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10616
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
68036
Other (OTH)
AF:
0.00
AC:
0
AN:
2092
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.488
Heterozygous variant carriers
0
1
2
2
3
4
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Variant carriers
0
2
4
6
8
10
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
Alfa
AF:
0.00
Hom.:
0
Bravo
AF:
0.0000831
ESP6500AA
AF:
0.000227
AC:
1
ESP6500EA
AF:
0.00
AC:
0
ExAC
AF:
0.0000330
AC:
4

ClinVar

ClinVar submissions
Significance:Uncertain significance
Revision:criteria provided, single submitter
View on ClinVar
Pathogenic
VUS
Benign
Condition
-
1
-
Inborn genetic diseases (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.081
BayesDel_addAF
Benign
-0.55
T
BayesDel_noAF
Benign
-0.72
CADD
Benign
15
DANN
Benign
0.95
DEOGEN2
Benign
0.039
T
Eigen
Benign
-0.48
Eigen_PC
Benign
-0.35
FATHMM_MKL
Uncertain
0.94
D
LIST_S2
Benign
0.74
T
M_CAP
Benign
0.0066
T
MetaRNN
Benign
0.065
T
MetaSVM
Benign
-1.0
T
MutationAssessor
Benign
1.4
L
PhyloP100
2.4
PrimateAI
Benign
0.36
T
PROVEAN
Benign
-1.9
N
REVEL
Benign
0.078
Sift
Benign
0.41
T
Sift4G
Benign
0.44
T
Polyphen
0.0010
B
Vest4
0.17
MVP
0.32
MPC
0.13
ClinPred
0.045
T
GERP RS
2.3
Varity_R
0.021
gMVP
0.33
Mutation Taster
=90/10
polymorphism

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.020
Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

Other links and lift over

dbSNP: rs189649618; hg19: chr20-5935262; COSMIC: COSV99177517; COSMIC: COSV99177517; API