10-119853194-C-T

Variant summary

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

The NM_001256378.2(MCMBP):​c.430G>A​(p.Ala144Thr) variant causes a missense, splice region change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000993 in 1,610,938 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 12/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000026 ( 0 hom., cov: 32)
Exomes 𝑓: 0.0000082 ( 0 hom. )

Consequence

MCMBP
NM_001256378.2 missense, splice_region

Scores

3
16
Splicing: ADA: 0.9780
1

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 2.94
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]

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/exons MANE Protein UniProt
MCMBPNM_001256378.2 linkuse as main transcriptc.430G>A p.Ala144Thr missense_variant, splice_region_variant 6/16 ENST00000369077.4 NP_001243307.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
MCMBPENST00000369077.4 linkuse as main transcriptc.430G>A p.Ala144Thr missense_variant, splice_region_variant 6/161 NM_001256378.2 ENSP00000358073 P3Q9BTE3-2
MCMBPENST00000360003.7 linkuse as main transcriptc.430G>A p.Ala144Thr missense_variant, splice_region_variant 6/162 ENSP00000353098 A1Q9BTE3-1
MCMBPENST00000495407.1 linkuse as main transcriptn.901G>A splice_region_variant, non_coding_transcript_exon_variant 2/52
MCMBPENST00000466047.5 linkuse as main transcriptn.554-22G>A intron_variant, non_coding_transcript_variant 2

Frequencies

GnomAD3 genomes
AF:
0.0000263
AC:
4
AN:
152056
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000483
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.000289
Gnomad EAS
AF:
0.00
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:
0.00000799
AC:
2
AN:
250206
Hom.:
0
AF XY:
0.00000740
AC XY:
1
AN XY:
135162
show subpopulations
Gnomad AFR exome
AF:
0.0000616
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:
0.00
Gnomad NFE exome
AF:
0.00000883
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000823
AC:
12
AN:
1458882
Hom.:
0
Cov.:
30
AF XY:
0.00000827
AC XY:
6
AN XY:
725420
show subpopulations
Gnomad4 AFR exome
AF:
0.0000299
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000117
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00000901
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.0000263
AC:
4
AN:
152056
Hom.:
0
Cov.:
32
AF XY:
0.0000269
AC XY:
2
AN XY:
74270
show subpopulations
Gnomad4 AFR
AF:
0.0000483
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.000289
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000147
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.0000386
Hom.:
0
Bravo
AF:
0.0000340
ExAC
AF:
0.00000824
AC:
1

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 GeneticsFeb 02, 2024The c.430G>A (p.A144T) alteration is located in exon 6 (coding exon 6) of the MCMBP gene. This alteration results from a G to A substitution at nucleotide position 430, causing the alanine (A) at amino acid position 144 to be replaced by a threonine (T). 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
-0.14
T
BayesDel_noAF
Benign
-0.26
CADD
Uncertain
24
DANN
Uncertain
0.99
DEOGEN2
Benign
0.034
T;.
Eigen
Benign
-0.14
Eigen_PC
Benign
0.13
FATHMM_MKL
Uncertain
0.92
D
LIST_S2
Benign
0.73
T;T
M_CAP
Benign
0.0021
T
MetaRNN
Benign
0.095
T;T
MetaSVM
Benign
-1.0
T
MutationAssessor
Benign
1.2
L;L
MutationTaster
Benign
0.99
D;D
PrimateAI
Uncertain
0.52
T
PROVEAN
Benign
-0.28
N;N
REVEL
Benign
0.18
Sift
Benign
0.39
T;T
Sift4G
Benign
0.47
T;T
Polyphen
0.11
B;.
Vest4
0.14
MutPred
0.55
Loss of helix (P = 0.028);Loss of helix (P = 0.028);
MVP
0.12
MPC
0.34
ClinPred
0.24
T
GERP RS
6.2
Varity_R
0.078
gMVP
0.15

Splicing

Name
Calibrated prediction
Score
Prediction
dbscSNV1_ADA
Pathogenic
0.98
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: rs758909277; hg19: chr10-121612706; COSMIC: COSV104418300; API