Variant 20-8722436-C-T details in Genebe, Genetics Data Aggregator

Variant summary

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

The NM_015192.4(PLCB1):c.1581+15C>T variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0039 in 1,589,130 control chromosomes in the GnomAD database, including 210 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: 𝑓 0.021 ( 117 hom., cov: 32)

Exomes 𝑓: 0.0021 ( 93 hom. )

Consequence

PLCB1
NM_015192.4 intron

Scores

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:5

Conservation

PhyloP100: -1.95

Variant links:

Genes affected

PLCB1 (HGNC:15917): (phospholipase C beta 1) The protein encoded by this gene catalyzes the formation of inositol 1,4,5-trisphosphate and diacylglycerol from phosphatidylinositol 4,5-bisphosphate. This reaction uses calcium as a cofactor and plays an important role in the intracellular transduction of many extracellular signals. This gene is activated by two G-protein alpha subunits, alpha-q and alpha-11. Two transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Jul 2008]

PLCB1 links:

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -20 ACMG points.

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.86).

BP6

Variant 20-8722436-C-T is Benign according to our data. Variant chr20-8722436-C-T is described in ClinVar as [Likely_benign]. Clinvar id is 260595.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr20-8722436-C-T is described in Lovd as [Benign].

BA1

GnomAd4 highest subpopulation (AFR) allele frequency at 95% confidence interval = 0.0708 is higher than 0.05.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
PLCB1	NM_015192.4 linkuse as main transcript	c.1581+15C>T		intron_variant		ENST00000338037.11	NP_056007.1
PLCB1	NM_182734.3 linkuse as main transcript	c.1581+15C>T		intron_variant			NP_877398.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
PLCB1	ENST00000338037.11 linkuse as main transcript	c.1581+15C>T		intron_variant		1	NM_015192.4	ENSP00000338185	P1	Q9NQ66-1

Frequencies

GnomAD3 genomes

AF:

0.0208

AC:

3163

AN:

152048

Hom.:

116

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0729

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00610

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.000207

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.000323

Gnomad OTH

AF:

0.0148

GnomAD3 exomes

AF:

0.00517

AC:

1235

AN:

238918

Hom.:

AF XY:

0.00392

AC XY:

508

AN XY:

129638

show subpopulations

Gnomad AFR exome

AF:

0.0718

Gnomad AMR exome

AF:

0.00305

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.000173

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.000246

Gnomad OTH exome

AF:

0.00264

GnomAD4 exome

AF:

0.00211

AC:

3032

AN:

1436964

Hom.:

Cov.:

AF XY:

0.00182

AC XY:

1301

AN XY:

715694

show subpopulations

Gnomad4 AFR exome

AF:

0.0730

Gnomad4 AMR exome

AF:

0.00367

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.000262

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.000175

Gnomad4 OTH exome

AF:

0.00493

GnomAD4 genome

AF:

0.0209

AC:

3173

AN:

152166

Hom.:

117

Cov.:

AF XY:

0.0204

AC XY:

1516

AN XY:

74408

show subpopulations

Gnomad4 AFR

AF:

0.0730

Gnomad4 AMR

AF:

0.00596

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.000207

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.000323

Gnomad4 OTH

AF:

0.0147

Alfa

AF:

0.0173

Hom.:

Bravo

AF:

0.0231

Asia WGS

AF:

0.00433

AC:

AN:

3478

ClinVar

Significance: Benign/Likely benign

Submissions summary: Benign:5

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

not provided

Benign:2

Benign, criteria provided, single submitter	clinical testing	GeneDx	Dec 01, 2020	- -
Likely benign, criteria provided, single submitter	not provided	Breakthrough Genomics, Breakthrough Genomics	-	- -

not specified

Benign:1

Benign, criteria provided, single submitter

clinical testing

PreventionGenetics, part of Exact Sciences

- -

Early Infantile Epileptic Encephalopathy, Autosomal Recessive

Benign:1

Likely benign, criteria provided, single submitter

clinical testing

Illumina Laboratory Services, Illumina

Jun 14, 2016

- -

Developmental and epileptic encephalopathy, 12

Benign:1

Benign, criteria provided, single submitter

clinical testing

Labcorp Genetics (formerly Invitae), Labcorp

Feb 01, 2024

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.86

CADD

Benign

2.0

DANN

Benign

0.78

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.

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