Variant 7-103299436-C-G details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Benign. Variant got -7 ACMG points: 2P and 9B. PM2BP4_StrongBP6BS1

The NM_004279.3(PMPCB):c.241-7C>G variant causes a splice region, splice polypyrimidine tract, intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000592 in 1,537,800 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. 3/3 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Likely benign (no stars).

Frequency

Genomes: 𝑓 0.00030 ( 0 hom., cov: 33)

Exomes 𝑓: 0.000032 ( 1 hom. )

Consequence

PMPCB
NM_004279.3 splice_region, splice_polypyrimidine_tract, intron

Scores

Splicing: ADA: 0.0009600

Clinical Significance

Likely benign no assertion criteria provided B:1

Conservation

PhyloP100: 0.153

Variant links:

Genes affected

PMPCB (HGNC:9119): (peptidase, mitochondrial processing subunit beta) This gene is a member of the peptidase M16 family and encodes a protein with a zinc-binding motif. This protein is located in the mitochondrial matrix and catalyzes the cleavage of the leader peptides of precursor proteins newly imported into the mitochondria, though it only functions as part of a heterodimeric complex. [provided by RefSeq, Jul 2008]

PMPCB links:

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -7 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.79).

BP6

Variant 7-103299436-C-G is Benign according to our data. Variant chr7-103299436-C-G is described in ClinVar as [Likely_benign]. Clinvar id is 3046521.Status of the report is no_assertion_criteria_provided, 0 stars.

BS1

Variant frequency is greater than expected in population afr. gnomad4 allele frequency = 0.000302 (46/152094) while in subpopulation AFR AF= 0.00111 (46/41404). AF 95% confidence interval is 0.000856. There are 0 homozygotes in gnomad4. There are 20 alleles in male gnomad4 subpopulation. Median coverage is 33. This position pass quality control queck.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
PMPCB	NM_004279.3 linkuse as main transcript	c.241-7C>G		splice_region_variant, splice_polypyrimidine_tract_variant, intron_variant		ENST00000249269.9

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
PMPCB	ENST00000249269.9 linkuse as main transcript	c.241-7C>G		splice_region_variant, splice_polypyrimidine_tract_variant, intron_variant		1	NM_004279.3	P1

Frequencies

GnomAD3 genomes

AF:

0.000302

AC:

AN:

152094

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00111

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

GnomAD3 exomes

AF:

0.0000697

AC:

AN:

243932

Hom.:

AF XY:

0.0000607

AC XY:

AN XY:

131808

show subpopulations

Gnomad AFR exome

AF:

0.00106

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:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000325

AC:

AN:

1385706

Hom.:

Cov.:

AF XY:

0.0000288

AC XY:

AN XY:

693276

show subpopulations

Gnomad4 AFR exome

AF:

0.00123

Gnomad4 AMR exome

AF:

0.0000712

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:

0.00

Gnomad4 OTH exome

AF:

0.0000519

GnomAD4 genome

AF:

0.000302

AC:

AN:

152094

Hom.:

Cov.:

AF XY:

0.000269

AC XY:

AN XY:

74274

show subpopulations

Gnomad4 AFR

AF:

0.00111

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

Alfa

AF:

0.000142

Hom.:

Bravo

AF:

0.000366

ClinVar

Significance: Likely benign

Submissions summary: Benign:1

Revision: no assertion criteria provided

LINK: link

Submissions by phenotype

PMPCB-related disorder

Benign:1

Likely benign, no assertion criteria provided

clinical testing

PreventionGenetics, part of Exact Sciences

Mar 23, 2020

This variant is classified as likely benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.79

CADD

Benign

7.4

DANN

Benign

0.56

Splicing

Name

Calibrated prediction

Score

Prediction

dbscSNV1_ADA

Benign

0.00096

dbscSNV1_RF

Benign

0.20

SpliceAI score (max)

0.010

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.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over