chr8-142876677-C-G

Variant names:

Variant summary

Our verdict is Uncertain significance. The variant received 3 ACMG points: 3P and 0B. PP3_ModeratePP5

The NM_000497.4(CYP11B1):c.799+5G>C variant causes a splice region, intron change. The variant allele was found at a frequency of 0.000028 in 1,606,900 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 2/3 splice prediction tools predicting alterations to normal splicing. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.00014 ( 0 hom., cov: 33)

Exomes 𝑓: 0.000017 ( 0 hom. )

Consequence

CYP11B1
NM_000497.4 splice_region, intron

Scores

Splicing: ADA: 0.9999

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications P:4U:4

Conservation

PhyloP100: 3.74

Publications

0 publications found

Variant links:

Genes affected

CYP11B1 (HGNC:2591): (cytochrome P450 family 11 subfamily B member 1) This gene encodes a member of the cytochrome P450 superfamily of enzymes. The cytochrome P450 proteins are monooxygenases which catalyze many reactions involved in drug metabolism and synthesis of cholesterol, steroids and other lipids. This protein localizes to the mitochondrial inner membrane and is involved in the conversion of progesterone to cortisol in the adrenal cortex. Mutations in this gene cause congenital adrenal hyperplasia due to 11-beta-hydroxylase deficiency. Transcript variants encoding different isoforms have been noted for this gene. [provided by RefSeq, Jul 2008]

CYP11B1 links:

GML (HGNC:4375): (glycosylphosphatidylinositol anchored molecule like) Predicted to be involved in DNA damage response, signal transduction by p53 class mediator resulting in cell cycle arrest; apoptotic process; and negative regulation of cell population proliferation. Predicted to be extrinsic component of membrane. [provided by Alliance of Genome Resources, Apr 2022]

GML links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 3 ACMG points.

PP3

Splicing predictors support a deleterious effect. Scorers claiming Pathogenic: dbscSNV1_ADA, dbscSNV1_RF. Scorers claiming Uncertain: max_spliceai. No scorers claiming Benign.

PP5

Variant 8-142876677-C-G is Pathogenic according to our data. Variant chr8-142876677-C-G is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 35991.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
CYP11B1	NM_000497.4 link	c.799+5G>C		splice_region_variant, intron_variant	Intron 4 of 8	ENST00000292427.10	NP_000488.3	P15538-1Q8TDD0
CYP11B1	NM_001026213.1 link	c.799+5G>C		splice_region_variant, intron_variant	Intron 4 of 7		NP_001021384.1	P15538-2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
CYP11B1	ENST00000292427.10 link	c.799+5G>C		splice_region_variant, intron_variant	Intron 4 of 8	1	NM_000497.4	ENSP00000292427.5		P15538-1

Frequencies

GnomAD3 genomes

AF:

0.000138

AC:

AN:

152234

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000482

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.0000654

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

GnomAD2 exomes

AF:

0.0000395

AC:

AN:

228106

AF XY:

0.0000325

show subpopulations

Gnomad AFR exome

AF:

0.000643

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS 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:

0.0000165

AC:

AN:

1454548

Hom.:

Cov.:

AF XY:

0.0000138

AC XY:

AN XY:

722868

show subpopulations

African (AFR)

AF:

0.000722

AC:

AN:

33234

American (AMR)

AF:

0.00

AC:

AN:

43786

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

25926

East Asian (EAS)

AF:

0.00

AC:

AN:

39154

South Asian (SAS)

AF:

0.00

AC:

AN:

84756

European-Finnish (FIN)

AF:

0.00

AC:

AN:

52964

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5676

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

1108954

Other (OTH)

AF:

0.00

AC:

AN:

60098

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.425

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

GnomAD4 genome

AF:

0.000138

AC:

AN:

152352

Hom.:

Cov.:

AF XY:

0.000107

AC XY:

AN XY:

74502

show subpopulations

African (AFR)

AF:

0.000481

AC:

AN:

41588

American (AMR)

AF:

0.0000653

AC:

AN:

15304

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3470

East Asian (EAS)

AF:

0.00

AC:

AN:

5178

South Asian (SAS)

AF:

0.00

AC:

AN:

4830

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10626

Middle Eastern (MID)

AF:

0.00

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

68034

Other (OTH)

AF:

0.00

AC:

AN:

2116

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.506

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

Alfa

AF:

0.00

Hom.:

Bravo

AF:

0.000204

ClinVar

Significance: Conflicting classifications of pathogenicity

Submissions summary: Pathogenic:4Uncertain:4

Revision: criteria provided, conflicting classifications

LINK: link

Submissions by phenotype

Deficiency of steroid 11-beta-monooxygenase

Pathogenic:2Uncertain:1

Mar 18, 2024

Baylor Genetics

Significance:Likely pathogenic

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Nov 20, 2023

Clinical Biochemistry Laboratory, Health Services Laboratory

Significance:Pathogenic

Review Status:criteria provided, single submitter

Collection Method:clinical testing

ACMG:PVS1 PM2 PM3 -

Feb 08, 2017

Counsyl

Significance:Uncertain significance

Review Status:no assertion criteria provided

Collection Method:clinical testing

This submission and the accompanying classification are no longer maintained by the submitter. For more information on current observations and classification, please contact variantquestions@myriad.com. -

not provided

Uncertain:2

Mar 19, 2020

Athena Diagnostics

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Sep 24, 2024

Labcorp Genetics (formerly Invitae), Labcorp

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

This sequence change falls in intron 4 of the CYP11B1 gene. It does not directly change the encoded amino acid sequence of the CYP11B1 protein. It affects a nucleotide within the consensus splice site. This variant is present in population databases (rs193922542, gnomAD 0.05%). This variant has been observed in individual(s) with adrenal hyperplasia (PMID: 17371482). ClinVar contains an entry for this variant (Variation ID: 35991). Variants that disrupt the consensus splice site are a relatively common cause of aberrant splicing (PMID: 17576681, 9536098). Algorithms developed to predict the effect of sequence changes on RNA splicing suggest that this variant may disrupt the consensus splice site. In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. -

Deficiency of steroid 11-beta-monooxygenase;C3838731:Glucocorticoid-remediable aldosteronism

Pathogenic:1

Jan 26, 2024

Fulgent Genetics, Fulgent Genetics

Significance:Likely pathogenic

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

CYP11B1-related disorder

Pathogenic:1

Jun 13, 2024

PreventionGenetics, part of Exact Sciences

Significance:Likely pathogenic

Review Status:no assertion criteria provided

Collection Method:clinical testing

The CYP11B1 c.799+5G>C variant is predicted to interfere with splicing. This variant was reported in the compound heterozygous state with a nonsense CYP11B1 variant in an individual with congenital adrenal hyperplasia due to 11-ß-hydroxylase deficiency (Andrew et al. 2007. PubMed ID: 17371482). This variant, along with a CYP11B1 nonsense variant, was also documented in an individual with congenital adrenal hyperplasia at PreventionGenetics (internal data). This variant is reported in 0.048% of alleles in individuals of African descent in gnomAD. This variant is interpreted as likely pathogenic. -

Congenital adrenal hyperplasia

Uncertain:1

Aug 18, 2011

Women's Health and Genetics/Laboratory Corporation of America, LabCorp

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing;curation

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.46

CADD

Pathogenic

(source)

DANN

Benign

0.82

PhyloP100

3.7

Mutation Taster

=14/86

disease causing

(source)

Splicing

Name

Calibrated prediction

Score

Prediction

dbscSNV1_ADA

Pathogenic

1.0

dbscSNV1_RF

Pathogenic

0.84

SpliceAI score (max)

0.41

Details are displayed if max score is > 0.2

DS_DG_spliceai

0.24

Position offset: 10

DS_DL_spliceai

0.41

Position offset: 5

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over