8-6406609-G-C

Variant summary

Our verdict is Benign. Variant got -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBA1

The ENST00000519480.6(MCPH1):​c.-59G>C variant causes a 5 prime UTR change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.742 in 1,590,766 control chromosomes in the GnomAD database, including 448,300 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★).

Frequency

Genomes: 𝑓 0.64 ( 33640 hom., cov: 34)
Exomes 𝑓: 0.75 ( 414660 hom. )

Consequence

MCPH1
ENST00000519480.6 5_prime_UTR

Scores

2

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:3

Conservation

PhyloP100: -0.357
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]
MCPH1-DT (HGNC:55599): (MCPH1 divergent transcript)

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -20 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.8).
BP6
Variant 8-6406609-G-C is Benign according to our data. Variant chr8-6406609-G-C is described in ClinVar as [Benign]. Clinvar id is 363515.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BA1
GnomAd4 highest subpopulation (NFE) allele frequency at 95% confidence interval = 0.787 is higher than 0.05.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
MCPH1NM_024596.5 linkuse as main transcript upstream_gene_variant ENST00000344683.10

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
MCPH1ENST00000344683.10 linkuse as main transcript upstream_gene_variant 1 NM_024596.5 P1Q8NEM0-1
MCPH1-DTENST00000500118.4 linkuse as main transcript upstream_gene_variant 2

Frequencies

GnomAD3 genomes
AF:
0.638
AC:
97008
AN:
151938
Hom.:
33638
Cov.:
34
show subpopulations
Gnomad AFR
AF:
0.375
Gnomad AMI
AF:
0.939
Gnomad AMR
AF:
0.589
Gnomad ASJ
AF:
0.688
Gnomad EAS
AF:
0.479
Gnomad SAS
AF:
0.623
Gnomad FIN
AF:
0.792
Gnomad MID
AF:
0.662
Gnomad NFE
AF:
0.792
Gnomad OTH
AF:
0.644
GnomAD4 exome
AF:
0.753
AC:
1083070
AN:
1438710
Hom.:
414660
Cov.:
31
AF XY:
0.751
AC XY:
536670
AN XY:
714296
show subpopulations
Gnomad4 AFR exome
AF:
0.367
Gnomad4 AMR exome
AF:
0.543
Gnomad4 ASJ exome
AF:
0.690
Gnomad4 EAS exome
AF:
0.489
Gnomad4 SAS exome
AF:
0.625
Gnomad4 FIN exome
AF:
0.810
Gnomad4 NFE exome
AF:
0.792
Gnomad4 OTH exome
AF:
0.719
GnomAD4 genome
AF:
0.638
AC:
97040
AN:
152056
Hom.:
33640
Cov.:
34
AF XY:
0.635
AC XY:
47213
AN XY:
74322
show subpopulations
Gnomad4 AFR
AF:
0.375
Gnomad4 AMR
AF:
0.589
Gnomad4 ASJ
AF:
0.688
Gnomad4 EAS
AF:
0.478
Gnomad4 SAS
AF:
0.622
Gnomad4 FIN
AF:
0.792
Gnomad4 NFE
AF:
0.792
Gnomad4 OTH
AF:
0.645
Alfa
AF:
0.705
Hom.:
4944
Bravo
AF:
0.613
Asia WGS
AF:
0.568
AC:
1974
AN:
3476

ClinVar

Significance: Benign
Submissions summary: Benign:3
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not provided Benign:2
Benign, criteria provided, single submitternot providedBreakthrough Genomics, Breakthrough Genomics-- -
Benign, criteria provided, single submitterclinical testingGeneDxJun 16, 2018- -
Primary Microcephaly, Recessive Benign:1
Benign, criteria provided, single submitterclinical testingIllumina Laboratory Services, IlluminaJun 14, 2016- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.80
CADD
Benign
5.3
DANN
Benign
0.59

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: rs2305023; hg19: chr8-6264130; COSMIC: COSV60911521; COSMIC: COSV60911521; API