rs7774976

Variant summary

Our verdict is Benign. Variant got -12 ACMG points: 0P and 12B. BP4_StrongBA1

The NM_002388.6(MCM3):​c.400+142T>G variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.146 in 693,420 control chromosomes in the GnomAD database, including 9,781 homozygotes. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

Frequency

Genomes: 𝑓 0.17 ( 2784 hom., cov: 32)
Exomes 𝑓: 0.14 ( 6997 hom. )

Consequence

MCM3
NM_002388.6 intron

Scores

2

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: -0.793
Variant links:
Genes affected
MCM3 (HGNC:6945): (minichromosome maintenance complex component 3) The protein encoded by this gene is one of the highly conserved mini-chromosome maintenance proteins (MCM) that are involved in the initiation of eukaryotic genome replication. The hexameric protein complex formed by MCM proteins is a key component of the pre-replication complex (pre_RC) and may be involved in the formation of replication forks and in the recruitment of other DNA replication related proteins. This protein is a subunit of the protein complex that consists of MCM2-7. It has been shown to interact directly with MCM5/CDC46. This protein also interacts with and is acetylated by MCM3AP, a chromatin-associated acetyltransferase. The acetylation of this protein inhibits the initiation of DNA replication and cell cycle progression. Several transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Oct 2018]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -12 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.92).
BA1
GnomAd4 highest subpopulation (EAS) allele frequency at 95% confidence interval = 0.413 is higher than 0.05.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
MCM3NM_002388.6 linkuse as main transcriptc.400+142T>G intron_variant ENST00000596288.7 NP_002379.4

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
MCM3ENST00000596288.7 linkuse as main transcriptc.400+142T>G intron_variant 1 NM_002388.6 ENSP00000472940 P1P25205-1
MCM3ENST00000229854.12 linkuse as main transcriptc.430+142T>G intron_variant 1 ENSP00000229854
MCM3ENST00000616552.4 linkuse as main transcriptc.535+142T>G intron_variant 1 ENSP00000480987 P25205-2
MCM3ENST00000419835.8 linkuse as main transcriptc.262+142T>G intron_variant 2 ENSP00000388647

Frequencies

GnomAD3 genomes
AF:
0.169
AC:
25693
AN:
151942
Hom.:
2774
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.269
Gnomad AMI
AF:
0.0208
Gnomad AMR
AF:
0.144
Gnomad ASJ
AF:
0.106
Gnomad EAS
AF:
0.427
Gnomad SAS
AF:
0.150
Gnomad FIN
AF:
0.175
Gnomad MID
AF:
0.127
Gnomad NFE
AF:
0.100
Gnomad OTH
AF:
0.165
GnomAD4 exome
AF:
0.139
AC:
75380
AN:
541360
Hom.:
6997
AF XY:
0.138
AC XY:
39308
AN XY:
284738
show subpopulations
Gnomad4 AFR exome
AF:
0.277
Gnomad4 AMR exome
AF:
0.136
Gnomad4 ASJ exome
AF:
0.100
Gnomad4 EAS exome
AF:
0.408
Gnomad4 SAS exome
AF:
0.154
Gnomad4 FIN exome
AF:
0.165
Gnomad4 NFE exome
AF:
0.103
Gnomad4 OTH exome
AF:
0.148
GnomAD4 genome
AF:
0.169
AC:
25735
AN:
152060
Hom.:
2784
Cov.:
32
AF XY:
0.172
AC XY:
12810
AN XY:
74312
show subpopulations
Gnomad4 AFR
AF:
0.270
Gnomad4 AMR
AF:
0.144
Gnomad4 ASJ
AF:
0.106
Gnomad4 EAS
AF:
0.428
Gnomad4 SAS
AF:
0.150
Gnomad4 FIN
AF:
0.175
Gnomad4 NFE
AF:
0.100
Gnomad4 OTH
AF:
0.164
Alfa
AF:
0.110
Hom.:
1365
Bravo
AF:
0.175
Asia WGS
AF:
0.269
AC:
936
AN:
3478

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.92
CADD
Benign
0.21
DANN
Benign
0.32

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

LitVar

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs7774976; hg19: chr6-52147309; API