rs148526209

Positions:

Variant summary

Our verdict is Likely benign. Variant got -3 ACMG points: 2P and 5B. PM2BP4_StrongBP6

The NM_024596.5(MCPH1):ā€‹c.1061T>Cā€‹(p.Val354Ala) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000102 in 1,613,958 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. 15/20 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: š‘“ 0.00051 ( 0 hom., cov: 33)
Exomes š‘“: 0.000060 ( 1 hom. )

Consequence

MCPH1
NM_024596.5 missense

Scores

18

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:1B:1

Conservation

PhyloP100: 0.210
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 Likely_benign. Variant got -3 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.0066161454).
BP6
Variant 8-6444783-T-C is Benign according to our data. Variant chr8-6444783-T-C is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 158815.We mark this variant Likely_benign, oryginal submissions are: {Uncertain_significance=1, Likely_benign=1}. Variant chr8-6444783-T-C is described in Lovd as [Likely_benign].

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
MCPH1NM_024596.5 linkc.1061T>C p.Val354Ala missense_variant 8/14 ENST00000344683.10 NP_078872.3 Q8NEM0-1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
MCPH1ENST00000344683.10 linkc.1061T>C p.Val354Ala missense_variant 8/141 NM_024596.5 ENSP00000342924.5 Q8NEM0-1

Frequencies

GnomAD3 genomes
AF:
0.000507
AC:
77
AN:
152022
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.00179
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000197
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
GnomAD3 exomes
AF:
0.000128
AC:
32
AN:
249034
Hom.:
1
AF XY:
0.0000592
AC XY:
8
AN XY:
135194
show subpopulations
Gnomad AFR exome
AF:
0.00201
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:
0.00000885
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000595
AC:
87
AN:
1461818
Hom.:
1
Cov.:
71
AF XY:
0.0000399
AC XY:
29
AN XY:
727206
show subpopulations
Gnomad4 AFR exome
AF:
0.00230
Gnomad4 AMR exome
AF:
0.0000224
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
8.99e-7
Gnomad4 OTH exome
AF:
0.000132
GnomAD4 genome
AF:
0.000506
AC:
77
AN:
152140
Hom.:
0
Cov.:
33
AF XY:
0.000619
AC XY:
46
AN XY:
74362
show subpopulations
Gnomad4 AFR
AF:
0.00178
Gnomad4 AMR
AF:
0.000196
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
Alfa
AF:
0.0000969
Hom.:
0
Bravo
AF:
0.000563
ESP6500AA
AF:
0.00238
AC:
9
ESP6500EA
AF:
0.00
AC:
0
ExAC
AF:
0.000174
AC:
21

ClinVar

Significance: Conflicting classifications of pathogenicity
Submissions summary: Uncertain:1Benign:1
Revision: criteria provided, conflicting classifications
LINK: link

Submissions by phenotype

Microcephaly 1, primary, autosomal recessive Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingGenetic Services Laboratory, University of ChicagoMar 24, 2014- -
not provided Benign:1
Likely benign, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpJan 09, 2024- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.089
BayesDel_addAF
Benign
-0.73
T
BayesDel_noAF
Benign
-0.82
CADD
Benign
7.6
DANN
Benign
0.25
DEOGEN2
Benign
0.053
T;.;.
Eigen
Benign
-0.97
Eigen_PC
Benign
-0.89
FATHMM_MKL
Benign
0.0041
N
M_CAP
Benign
0.0038
T
MetaRNN
Benign
0.0066
T;T;T
MetaSVM
Benign
-0.93
T
MutationAssessor
Benign
0.68
N;N;.
PrimateAI
Benign
0.29
T
PROVEAN
Benign
0.76
N;N;N
REVEL
Benign
0.067
Sift
Benign
1.0
T;T;T
Sift4G
Benign
1.0
T;T;T
Polyphen
0.0010
B;.;.
Vest4
0.016
MVP
0.18
ClinPred
0.0064
T
GERP RS
3.3
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.1
Varity_R
0.022
gMVP
0.13

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: rs148526209; hg19: chr8-6302304; API