8-6431543-C-T

Variant summary

Our verdict is Uncertain significance. Variant got 1 ACMG points: 2P and 1B. PM2BP4

The NM_024596.5(MCPH1):​c.278C>T​(p.Ala93Val) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000124 in 1,613,016 control chromosomes in the GnomAD database, with no homozygous occurrence. 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 0.0000066 ( 0 hom., cov: 33)
Exomes 𝑓: 6.8e-7 ( 0 hom. )

Consequence

MCPH1
NM_024596.5 missense

Scores

7
11

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 3.53
Variant links:
Genes affected
MCPH1 (HGNC:6954): (microcephalin 1) This gene encodes a DNA damage response protein. The encoded protein may play a role in G2/M checkpoint arrest via maintenance of inhibitory phosphorylation of cyclin-dependent kinase 1. Mutations in this gene have been associated with primary autosomal recessive microcephaly 1 and premature chromosome condensation syndrome. Alternatively spliced transcript variants have been described. [provided by RefSeq, Feb 2010]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 1 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.37161916).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
MCPH1NM_024596.5 linkuse as main transcriptc.278C>T p.Ala93Val missense_variant 4/14 ENST00000344683.10 NP_078872.3 Q8NEM0-1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
MCPH1ENST00000344683.10 linkuse as main transcriptc.278C>T p.Ala93Val missense_variant 4/141 NM_024596.5 ENSP00000342924.5 Q8NEM0-1

Frequencies

GnomAD3 genomes
AF:
0.00000659
AC:
1
AN:
151784
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.0000242
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
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
GnomAD4 exome
AF:
6.84e-7
AC:
1
AN:
1461232
Hom.:
0
Cov.:
29
AF XY:
0.00
AC XY:
0
AN XY:
726950
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.0000252
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.00000659
AC:
1
AN:
151784
Hom.:
0
Cov.:
33
AF XY:
0.00
AC XY:
0
AN XY:
74096
show subpopulations
Gnomad4 AFR
AF:
0.0000242
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.00
Bravo
AF:
0.0000113

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Uncertain
0.41
BayesDel_addAF
Benign
0.0078
T
BayesDel_noAF
Benign
-0.23
CADD
Pathogenic
26
DANN
Uncertain
1.0
DEOGEN2
Benign
0.24
T;.;.
Eigen
Uncertain
0.59
Eigen_PC
Uncertain
0.53
FATHMM_MKL
Uncertain
0.96
D
M_CAP
Benign
0.044
D
MetaRNN
Benign
0.37
T;T;T
MetaSVM
Benign
-0.57
T
MutationAssessor
Uncertain
2.7
M;M;M
PrimateAI
Benign
0.45
T
PROVEAN
Benign
-2.1
N;N;N
REVEL
Benign
0.11
Sift
Benign
0.052
T;T;T
Sift4G
Uncertain
0.020
D;D;D
Polyphen
1.0
D;.;.
Vest4
0.32
MutPred
0.25
Loss of disorder (P = 0.0817);Loss of disorder (P = 0.0817);Loss of disorder (P = 0.0817);
MVP
0.73
ClinPred
0.98
D
GERP RS
5.3
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.1
Varity_R
0.49
gMVP
0.37

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: rs587783741; hg19: chr8-6289064; API