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GeneBe

10-119838693-C-T

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_001256378.2(MCMBP):​c.1250G>A​(p.Arg417His) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000225 in 1,597,136 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/20 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R417C) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000024 ( 0 hom. )

Consequence

MCMBP
NM_001256378.2 missense

Scores

2
17

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.67
Variant links:
Genes affected
MCMBP (HGNC:25782): (minichromosome maintenance complex binding protein) This gene encodes a protein which is a component of the hexameric minichromosome maintenance (MCM) complex which regulates initiation and elongation of DNA. Multiple transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Jan 2012]

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 0 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.07066989).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
MCMBPNM_001256378.2 linkuse as main transcriptc.1250G>A p.Arg417His missense_variant 12/16 ENST00000369077.4

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
MCMBPENST00000369077.4 linkuse as main transcriptc.1250G>A p.Arg417His missense_variant 12/161 NM_001256378.2 P3Q9BTE3-2
MCMBPENST00000360003.7 linkuse as main transcriptc.1256G>A p.Arg419His missense_variant 12/162 A1Q9BTE3-1
MCMBPENST00000466047.5 linkuse as main transcriptn.1352G>A non_coding_transcript_exon_variant 12/162

Frequencies

GnomAD3 genomes
AF:
0.0000132
AC:
2
AN:
152052
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:
0.000192
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:
0.0000526
AC:
13
AN:
247228
Hom.:
0
AF XY:
0.0000449
AC XY:
6
AN XY:
133614
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:
0.0000463
Gnomad NFE exome
AF:
0.000107
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000235
AC:
34
AN:
1445084
Hom.:
0
Cov.:
30
AF XY:
0.0000223
AC XY:
16
AN XY:
717758
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.0000229
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.0000379
Gnomad4 NFE exome
AF:
0.0000227
Gnomad4 OTH exome
AF:
0.0000503
GnomAD4 genome
AF:
0.0000132
AC:
2
AN:
152052
Hom.:
0
Cov.:
32
AF XY:
0.0000269
AC XY:
2
AN XY:
74268
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.000192
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000147
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.0000282
Hom.:
0
Bravo
AF:
0.0000264
ExAC
AF:
0.0000576
AC:
7

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 submitterclinical testingAmbry GeneticsAug 30, 2021The c.1256G>A (p.R419H) alteration is located in exon 12 (coding exon 12) of the MCMBP gene. This alteration results from a G to A substitution at nucleotide position 1256, causing the arginine (R) at amino acid position 419 to be replaced by a histidine (H). 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
0.082
BayesDel_addAF
Benign
-0.34
T
BayesDel_noAF
Benign
-0.51
CADD
Benign
21
DANN
Uncertain
0.98
DEOGEN2
Benign
0.029
T;.
Eigen
Benign
-0.50
Eigen_PC
Benign
-0.40
FATHMM_MKL
Benign
0.72
D
LIST_S2
Uncertain
0.87
D;D
M_CAP
Benign
0.0071
T
MetaRNN
Benign
0.071
T;T
MetaSVM
Benign
-1.0
T
MutationAssessor
Benign
0.67
N;.
MutationTaster
Benign
0.84
N;N
PrimateAI
Benign
0.34
T
PROVEAN
Benign
2.1
N;N
REVEL
Benign
0.065
Sift
Benign
0.54
T;T
Sift4G
Benign
0.38
T;T
Polyphen
0.017
B;.
Vest4
0.12
MutPred
0.60
Loss of methylation at R419 (P = 0.0396);.;
MVP
0.043
MPC
0.36
ClinPred
0.087
T
GERP RS
1.6
Varity_R
0.034
gMVP
0.47

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.040
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: rs202205398; hg19: chr10-121598205; API