chr6-32038482-G-C

Variant names:

Variant summary

Our verdict is Uncertain significance. The variant received 1 ACMG points: 1P and 0B. PP2

The NM_000500.9(CYP21A2):c.60G>C(p.Trp20Cys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000422 in 1,587,140 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.00016 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000029 ( 0 hom. )

Consequence

CYP21A2
NM_000500.9 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 3.17

Publications

5 publications found

Variant links:

Genes affected

CYP21A2 (HGNC:2600): (cytochrome P450 family 21 subfamily A member 2) 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 endoplasmic reticulum and hydroxylates steroids at the 21 position. Its activity is required for the synthesis of steroid hormones including cortisol and aldosterone. Mutations in this gene cause congenital adrenal hyperplasia. A related pseudogene is located near this gene; gene conversion events involving the functional gene and the pseudogene are thought to account for many cases of steroid 21-hydroxylase deficiency. Two transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Jul 2008]

CYP21A2 Gene-Disease associations (from GenCC):

classic congenital adrenal hyperplasia due to 21-hydroxylase deficiency
Inheritance: AR Classification: DEFINITIVE, STRONG Submitted by: Labcorp Genetics (formerly Invitae), Myriad Women’s Health, Laboratory for Molecular Medicine
classic congenital adrenal hyperplasia due to 21-hydroxylase deficiency, salt wasting form
Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet
classic congenital adrenal hyperplasia due to 21-hydroxylase deficiency, simple virilizing form
Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet

CYP21A2 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 1 ACMG points.

PP2

Missense variant in the gene, where a lot of missense mutations are associated with disease in ClinVar. The gene has 52 curated pathogenic missense variants (we use a threshold of 10). The gene has 5 curated benign missense variants. Trascript score misZ: 1.8021 (below the threshold of 3.09). GenCC associations: The gene is linked to classic congenital adrenal hyperplasia due to 21-hydroxylase deficiency, simple virilizing form, classic congenital adrenal hyperplasia due to 21-hydroxylase deficiency, classic congenital adrenal hyperplasia due to 21-hydroxylase deficiency, salt wasting form.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_000500.9. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
CYP21A2	NM_000500.9	MANE Select	c.60G>C	p.Trp20Cys	missense	Exon 1 of 10	NP_000491.4
CYP21A2	NM_001128590.4		c.60G>C	p.Trp20Cys	missense	Exon 1 of 9	NP_001122062.3	P08686-2
CYP21A2	NM_001368143.2		c.-365G>C		5_prime_UTR	Exon 1 of 10	NP_001355072.1

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
CYP21A2	ENST00000644719.2	MANE Select	c.60G>C	p.Trp20Cys	missense	Exon 1 of 10	ENSP00000496625.1	P08686-1
CYP21A2	ENST00000960600.1		c.60G>C	p.Trp20Cys	missense	Exon 1 of 10	ENSP00000630659.1
CYP21A2	ENST00000960597.1		c.60G>C	p.Trp20Cys	missense	Exon 1 of 10	ENSP00000630656.1

Frequencies

GnomAD3 genomes

AF:

0.000164

AC:

AN:

152106

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000603

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

GnomAD2 exomes

AF:

0.0000980

AC:

AN:

204022

AF XY:

0.0000718

show subpopulations

Gnomad AFR exome

AF:

0.000450

Gnomad AMR exome

AF:

0.000430

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000232

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000293

AC:

AN:

1435034

Hom.:

Cov.:

104

AF XY:

0.0000281

AC XY:

AN XY:

711674

show subpopulations

African (AFR)

AF:

0.000519

AC:

AN:

32740

American (AMR)

AF:

0.000440

AC:

AN:

40932

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

25688

East Asian (EAS)

AF:

0.00

AC:

AN:

38566

South Asian (SAS)

AF:

0.00

AC:

AN:

83362

European-Finnish (FIN)

AF:

0.00

AC:

AN:

50434

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5642

European-Non Finnish (NFE)

AF:

0.00000546

AC:

AN:

1098354

Other (OTH)

AF:

0.0000169

AC:

AN:

59316

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.487

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:

0.000164

AC:

AN:

152106

Hom.:

Cov.:

AF XY:

0.000215

AC XY:

AN XY:

74288

show subpopulations

African (AFR)

AF:

0.000603

AC:

AN:

41430

American (AMR)

AF:

0.00

AC:

AN:

15276

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3472

East Asian (EAS)

AF:

0.00

AC:

AN:

5156

South Asian (SAS)

AF:

0.00

AC:

AN:

4832

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10620

Middle Eastern (MID)

AF:

0.00

AC:

AN:

316

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

68000

Other (OTH)

AF:

0.00

AC:

AN:

2092

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.503

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:

0.000174

ExAC

AF:

0.0000415

AC:

ClinVar

ClinVar submissions

Significance:Uncertain significance

Revision:criteria provided, single submitter

View on ClinVar

Pathogenic

VUS

Benign

Condition

ADRENAL HYPERPLASIA, CONGENITAL, DUE TO 21-HYDROXYLASE DEFICIENCY (1)

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Uncertain

0.37

BayesDel_addAF

Benign

-0.057

BayesDel_noAF

Uncertain

0.010

CADD

Uncertain

(source)

DANN

Uncertain

0.99

DEOGEN2

Benign

0.10

Eigen

Uncertain

0.29

Eigen_PC

Uncertain

0.26

FATHMM_MKL

Uncertain

0.76

LIST_S2

Benign

0.76

M_CAP

Pathogenic

0.36

MetaRNN

Uncertain

0.47

MetaSVM

Benign

-0.45

PhyloP100

3.2

PrimateAI

Uncertain

0.61

PROVEAN

Uncertain

-3.3

REVEL

Uncertain

0.54

Sift

Uncertain

0.0010

Sift4G

Uncertain

0.0030

Polyphen

1.0

Vest4

0.47

MutPred

0.60

Loss of catalytic residue at L18 (P = 0.0039)

MVP

0.90

MPC

4.9

ClinPred

0.39

GERP RS

4.5

PromoterAI

-0.017

Neutral

(source)

gMVP

0.52

Mutation Taster

=71/29

polymorphism

(source)

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

You must be logged in to view publications. This limit was set because tens of millions (!) of queries from AI bots are generated daily.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over