chr7-100095789-C-T

Position:

chr7-100095789-C-T

Variant summary

Our verdict is Likely benign. Variant got -6 ACMG points: 0P and 6B. BP4_ModerateBS2

The NM_005916.5(MCM7):c.1580G>A(p.Arg527Gln) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000019 in 1,582,832 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★). Synonymous variant affecting the same amino acid position (i.e. R527R) has been classified as Benign.

Frequency

Genomes: 𝑓 0.000046 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000016 ( 0 hom. )

Consequence

MCM7
NM_005916.5 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 2.37

Variant links:

Genes affected

MCM7 (HGNC:6950): (minichromosome maintenance complex component 7) 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 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. The MCM complex consisting of this protein and MCM2, 4 and 6 proteins possesses DNA helicase activity, and may act as a DNA unwinding enzyme. Cyclin D1-dependent kinase, CDK4, is found to associate with this protein, and may regulate the binding of this protein with the tumorsuppressor protein RB1/RB. Alternatively spliced transcript variants encoding distinct isoforms have been reported. [provided by RefSeq, Jul 2008]

MCM7 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -6 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.07771978).

BS2

High AC in GnomAd4 at 7 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE
MCM7	NM_005916.5 linkuse as main transcript	c.1580G>A	p.Arg527Gln	missense_variant	11/15	ENST00000303887.10
MCM7	NM_001278595.2 linkuse as main transcript	c.1052G>A	p.Arg351Gln	missense_variant	10/14
MCM7	NM_182776.3 linkuse as main transcript	c.1052G>A	p.Arg351Gln	missense_variant	10/14
MCM7	XM_005250348.4 linkuse as main transcript	c.1259G>A	p.Arg420Gln	missense_variant	11/15

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
MCM7	ENST00000303887.10 linkuse as main transcript	c.1580G>A	p.Arg527Gln	missense_variant	11/15	1	NM_005916.5	P1	P33993-1

Frequencies

GnomAD3 genomes

AF:

0.0000460

AC:

AN:

152162

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000241

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.000577

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000441

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000641

AC:

AN:

234104

Hom.:

AF XY:

0.000111

AC XY:

AN XY:

126552

show subpopulations

Gnomad AFR exome

AF:

0.0000619

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.000657

Gnomad SAS exome

AF:

0.0000352

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00000924

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000161

AC:

AN:

1430670

Hom.:

Cov.:

AF XY:

0.0000198

AC XY:

AN XY:

708578

show subpopulations

Gnomad4 AFR exome

AF:

0.0000907

Gnomad4 AMR exome

AF:

0.0000231

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.000178

Gnomad4 SAS exome

AF:

0.0000119

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00000638

Gnomad4 OTH exome

AF:

0.0000675

GnomAD4 genome

AF:

0.0000460

AC:

AN:

152162

Hom.:

Cov.:

AF XY:

0.0000673

AC XY:

AN XY:

74332

show subpopulations

Gnomad4 AFR

AF:

0.0000241

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.000577

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000441

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.000108

Hom.:

Bravo

AF:

0.0000491

ExAC

AF:

0.0000494

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

Jan 22, 2024

The c.1580G>A (p.R527Q) alteration is located in exon 11 (coding exon 11) of the MCM7 gene. This alteration results from a G to A substitution at nucleotide position 1580, causing the arginine (R) at amino acid position 527 to be replaced by a glutamine (Q). 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

0.14

BayesDel_addAF

Benign

-0.47

BayesDel_noAF

Benign

-0.55

CADD

Uncertain

DANN

Pathogenic

1.0

DEOGEN2

Benign

0.19

.;.;T

Eigen

Uncertain

0.30

Eigen_PC

Uncertain

0.36

FATHMM_MKL

Uncertain

0.87

LIST_S2

Uncertain

0.96

D;.;D

M_CAP

Benign

0.0041

MetaRNN

Benign

0.078

T;T;T

MetaSVM

Benign

-1.0

MutationAssessor

Uncertain

2.3

.;.;M

MutationTaster

Benign

1.0

D;D;D

PrimateAI

Benign

0.37

PROVEAN

Uncertain

-3.6

D;.;D

REVEL

Benign

0.084

Sift

Benign

0.030

D;.;D

Sift4G

Benign

0.15

T;T;T

Polyphen

0.89

.;.;P

Vest4

0.11

MutPred

0.44

.;.;Loss of stability (P = 0.0893);

MVP

0.37

MPC

0.18

ClinPred

0.27

GERP RS

4.5

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.8

Varity_R

0.66

gMVP

0.40

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.

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