8-142877206-G-A

Variant names:

• chr8-142877206-G-A
• rs764251434
• NM_000497.4:c.412C>T

Variant summary

Our verdict is Pathogenic. The variant received 15 ACMG points: 15P and 0B. PM1 PM5 PP2 PP3_Moderate PP5_Very_Strong

The ENST00000292427.10(CYP11B1):​c.412C>T​(p.Arg138Cys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000039 in 1,461,056 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Likely pathogenic (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R138H) has been classified as Uncertain significance.

• Frequency:
  • Genomes: not found (cov: 33)
  • Exomes 𝑓: 0.000039 (0 hom.)
• Consequence: CYP11B1 ENST00000292427.10 missense
• Clinical Significance: Pathogenic/Likely pathogenic criteria provided, multiple submitters, no conflicts P:3 U:1
• Conservation: PhyloP100: 0.560
• Publications: 8 publications found

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]

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]

ACMG classification

Our verdict: Pathogenic. The variant received 15 ACMG points.

• PM1: In a hotspot region, there are 4 aminoacids with missense pathogenic changes in the window of +-8 aminoacids around while only 0 benign, 5 uncertain in ENST00000292427.10
• PM5: Other missense variant is known to change same aminoacid residue: Variant chr8-142877206-G-C is described in ClinVar as Likely_pathogenic. ClinVar VariationId is 2746491.Status of the report is criteria_provided_single_submitter, 1 stars.
• PP2: Missense variant in the gene, where a lot of missense mutations are associated with disease in ClinVar. The gene has 45 curated pathogenic missense variants (we use a threshold of 10). The gene has 9 curated benign missense variants. Gene score misZ: -1.5619 (below the threshold of 3.09). Trascript score misZ: -0.26962 (below the threshold of 3.09). GenCC associations: The gene is linked to glucocorticoid-remediable aldosteronism, congenital adrenal hyperplasia due to 11-beta-hydroxylase deficiency.
• PP3: MetaRNN computational evidence supports a deleterious effect, 0.856
• PP5: Variant 8-142877206-G-A is Pathogenic according to our data. Variant chr8-142877206-G-A is described in ClinVar as Pathogenic/Likely_pathogenic. ClinVar VariationId is 552695.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

Variant Effect in Transcripts

ACMG analysis was done for transcript: ENST00000292427.10. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	CYP11B1	NM_000497.4	MANE Select	c.412C>T	p.Arg138Cys	missense	Exon 3 of 9	NP_000488.3
	CYP11B1	NM_001026213.1		c.412C>T	p.Arg138Cys	missense	Exon 3 of 8	NP_001021384.1

Ensembl Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	CYP11B1	ENST00000292427.10	TSL:1 MANE Select	c.412C>T	p.Arg138Cys	missense	Exon 3 of 9	ENSP00000292427.5
	CYP11B1	ENST00000377675.3	TSL:1	c.625C>T	p.Arg209Cys	missense	Exon 5 of 11	ENSP00000366903.3
	CYP11B1	ENST00000517471.5	TSL:1	c.412C>T	p.Arg138Cys	missense	Exon 3 of 8	ENSP00000428043.1

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD2 exomes AF: 0.0000201 AC: 5 AN: 249120 AF XY: 0.0000297

Gnomad AFR exome AF: 0.00

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: 0.0000177

Gnomad OTH exome AF: 0.00

GnomAD4 exome AF: 0.0000390 AC: 57 AN: 1461056 Hom.: 0 Cov.: 41 AF XY: 0.0000372 AC XY: 27 AN XY: 726732

African (AFR) AF: 0.0000299 AC: 1 AN: 33474

American (AMR) AF: 0.00 AC: 0 AN: 44624

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26104

East Asian (EAS) AF: 0.00 AC: 0 AN: 39672

South Asian (SAS) AF: 0.0000814 AC: 7 AN: 85994

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53384

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5766

European-Non Finnish (NFE) AF: 0.0000432 AC: 48 AN: 1111672

Other (OTH) AF: 0.0000166 AC: 1 AN: 60366

GnomAD4 genome Cov.: 33

Alfa AF: 0.00 Hom.: 0

Bravo AF: 0.00000756

ExAC AF: 0.0000165 AC: 2

EpiCase AF: 0.0000545

EpiControl AF: 0.0000595

ClinVar

ClinVar submissions as Germline

Significance: Pathogenic/Likely pathogenic

Revision: criteria provided, multiple submitters, no conflicts

Pathogenic	VUS	Benign	Condition
2	1	-	Deficiency of steroid 11-beta-monooxygenase (3)
1	-	-	not provided (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.13
BayesDel_addAF	Uncertain	0.012	T
BayesDel_noAF	Uncertain	-0.020
CADD	Uncertain	24
DANN	Uncertain	1.0
DEOGEN2	Pathogenic	0.82	D
Eigen	Benign	-0.075
Eigen_PC	Benign	-0.090
FATHMM_MKL	Benign	0.59	D
LIST_S2	Uncertain	0.87	D
M_CAP	Pathogenic	0.48	D
MetaRNN	Pathogenic	0.86	D
MetaSVM	Benign	-0.66	T
MutationAssessor	Uncertain	2.9	M
PhyloP100		0.56
PrimateAI	Uncertain	0.54	T
PROVEAN	Pathogenic	-6.6	D
REVEL	Uncertain	0.46
Sift	Pathogenic	0.0	D
Sift4G	Uncertain	0.030	D
Polyphen		0.63	P
Vest4		0.41
MutPred		0.79		Loss of methylation at R209 (P = 0.0347)
MVP		0.87
MPC		0.21
ClinPred		0.92	D
GERP RS		2.8
Varity_R		0.60
gMVP		0.55
Mutation Taster		=3/97	disease causing

Splicing

Name	Calibrated prediction	Score	Prediction
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

Other links and lift over

dbSNP: rs764251434; hg19: chr8-143958622; COSMIC: COSV52830527; COSMIC: COSV52830527;