rs61338903

Variant summary

Our verdict is Benign. The variant received -17 ACMG points: 0P and 17B. BP3BP6_Very_StrongBA1

The NM_000500.9(CYP21A2):​c.29_31delTGC​(p.Leu10del) variant causes a disruptive inframe deletion change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.251 in 151,604 control chromosomes in the GnomAD database, including 6,037 homozygotes. Variant has been reported in ClinVar as Benign (★★).

Frequency

Genomes: 𝑓 0.25 ( 6037 hom., cov: 24)
Exomes 𝑓: 0.30 ( 66363 hom. )
Failed GnomAD Quality Control

Consequence

CYP21A2
NM_000500.9 disruptive_inframe_deletion

Scores

Not classified

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:3

Conservation

PhyloP100: 1.46

Publications

8 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: Myriad Women’s Health, Labcorp Genetics (formerly Invitae), 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

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -17 ACMG points.

BP3
Nonframeshift variant in repetitive region in NM_000500.9
BP6
Variant 6-32038437-CCTG-C is Benign according to our data. Variant chr6-32038437-CCTG-C is described in ClinVar as Benign. ClinVar VariationId is 93160.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BA1
GnomAd4 highest subpopulation (AMR) allele frequency at 95% confidence interval = 0.36 is higher than 0.05.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
CYP21A2NM_000500.9 linkc.29_31delTGC p.Leu10del disruptive_inframe_deletion Exon 1 of 10 ENST00000644719.2 NP_000491.4
CYP21A2NM_001128590.4 linkc.29_31delTGC p.Leu10del disruptive_inframe_deletion Exon 1 of 9 NP_001122062.3
CYP21A2NM_001368143.2 linkc.-396_-394delTGC 5_prime_UTR_variant Exon 1 of 10 NP_001355072.1
CYP21A2NM_001368144.2 linkc.-306_-304delTGC 5_prime_UTR_variant Exon 1 of 9 NP_001355073.1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
CYP21A2ENST00000644719.2 linkc.29_31delTGC p.Leu10del disruptive_inframe_deletion Exon 1 of 10 NM_000500.9 ENSP00000496625.1

Frequencies

GnomAD3 genomes
AF:
0.251
AC:
38005
AN:
151486
Hom.:
6030
Cov.:
24
show subpopulations
Gnomad AFR
AF:
0.0653
Gnomad AMI
AF:
0.425
Gnomad AMR
AF:
0.368
Gnomad ASJ
AF:
0.462
Gnomad EAS
AF:
0.198
Gnomad SAS
AF:
0.239
Gnomad FIN
AF:
0.349
Gnomad MID
AF:
0.340
Gnomad NFE
AF:
0.314
Gnomad OTH
AF:
0.250
GnomAD2 exomes
AF:
0.309
AC:
48291
AN:
156350
AF XY:
0.302
show subpopulations
Gnomad AFR exome
AF:
0.0530
Gnomad AMR exome
AF:
0.436
Gnomad ASJ exome
AF:
0.460
Gnomad EAS exome
AF:
0.185
Gnomad FIN exome
AF:
0.339
Gnomad NFE exome
AF:
0.309
Gnomad OTH exome
AF:
0.308
GnomAD4 exome
Data not reliable, filtered out with message: AS_VQSR
AF:
0.299
AC:
419054
AN:
1401396
Hom.:
66363
AF XY:
0.299
AC XY:
207021
AN XY:
691912
show subpopulations
African (AFR)
AF:
0.0611
AC:
1939
AN:
31726
American (AMR)
AF:
0.426
AC:
15514
AN:
36434
Ashkenazi Jewish (ASJ)
AF:
0.451
AC:
11360
AN:
25214
East Asian (EAS)
AF:
0.240
AC:
8755
AN:
36490
South Asian (SAS)
AF:
0.248
AC:
19830
AN:
80026
European-Finnish (FIN)
AF:
0.339
AC:
16374
AN:
48338
Middle Eastern (MID)
AF:
0.323
AC:
1637
AN:
5072
European-Non Finnish (NFE)
AF:
0.303
AC:
327094
AN:
1080050
Other (OTH)
AF:
0.285
AC:
16551
AN:
58046
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.485
Heterozygous variant carriers
0
20225
40450
60674
80899
101124
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Exome Hom
Variant carriers
0
10580
21160
31740
42320
52900
<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:
0.251
AC:
38018
AN:
151604
Hom.:
6037
Cov.:
24
AF XY:
0.254
AC XY:
18835
AN XY:
74048
show subpopulations
African (AFR)
AF:
0.0651
AC:
2702
AN:
41478
American (AMR)
AF:
0.368
AC:
5613
AN:
15244
Ashkenazi Jewish (ASJ)
AF:
0.462
AC:
1597
AN:
3454
East Asian (EAS)
AF:
0.199
AC:
1018
AN:
5126
South Asian (SAS)
AF:
0.239
AC:
1148
AN:
4800
European-Finnish (FIN)
AF:
0.349
AC:
3667
AN:
10496
Middle Eastern (MID)
AF:
0.348
AC:
101
AN:
290
European-Non Finnish (NFE)
AF:
0.314
AC:
21261
AN:
67712
Other (OTH)
AF:
0.251
AC:
526
AN:
2098
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.495
Heterozygous variant carriers
0
1202
2404
3606
4808
6010
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Genome Hom
Variant carriers
0
396
792
1188
1584
1980
<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:
0.228
Hom.:
952
Bravo
AF:
0.247

ClinVar

Significance: Benign
Submissions summary: Benign:3
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not specified Benign:2
Jan 21, 2013
Eurofins Ntd Llc (ga)
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

-
PreventionGenetics, part of Exact Sciences
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

not provided Benign:1
Jul 18, 2017
Athena Diagnostics
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
PhyloP100
1.5
Mutation Taster
=72/28
polymorphism (auto)

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

Other links and lift over

dbSNP: rs61338903; hg19: chr6-32006214; COSMIC: COSV64475548; COSMIC: COSV64475548; API