chr6-32038467-C-T

Variant summary

Our verdict is Likely benign. Variant got -6 ACMG points: 0P and 6B. BP4_StrongBP7BS2_Supporting

The NM_000500.9(CYP21A2):​c.45C>T​(p.Gly15=) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000879 in 1,569,226 control chromosomes in the GnomAD database, including 3 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000099 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000087 ( 3 hom. )

Consequence

CYP21A2
NM_000500.9 synonymous

Scores

2

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: -2.95
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]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -6 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.7).
BP7
Synonymous conserved (PhyloP=-2.95 with no splicing effect.
BS2
High Homozygotes in GnomAdExome4 at 3 AR geneVariant has number of homozygotes lower than other variant known as pathogenic in the gene, so the strength is limited to Supporting.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
CYP21A2NM_000500.9 linkuse as main transcriptc.45C>T p.Gly15= synonymous_variant 1/10 ENST00000644719.2
CYP21A2NM_001128590.4 linkuse as main transcriptc.45C>T p.Gly15= synonymous_variant 1/9
CYP21A2NM_001368143.2 linkuse as main transcriptc.-380C>T 5_prime_UTR_variant 1/10
CYP21A2NM_001368144.2 linkuse as main transcriptc.-290C>T 5_prime_UTR_variant 1/9

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
CYP21A2ENST00000644719.2 linkuse as main transcriptc.45C>T p.Gly15= synonymous_variant 1/10 NM_000500.9 P1

Frequencies

GnomAD3 genomes
AF:
0.0000986
AC:
15
AN:
152134
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000393
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00116
Gnomad SAS
AF:
0.000207
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000294
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.000209
AC:
37
AN:
176716
Hom.:
3
AF XY:
0.000218
AC XY:
21
AN XY:
96186
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.000182
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00130
Gnomad SAS exome
AF:
0.000432
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000424
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000868
AC:
123
AN:
1416974
Hom.:
3
Cov.:
104
AF XY:
0.000101
AC XY:
71
AN XY:
700912
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.000104
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.000721
Gnomad4 SAS exome
AF:
0.000564
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000285
Gnomad4 OTH exome
AF:
0.000256
GnomAD4 genome
AF:
0.0000985
AC:
15
AN:
152252
Hom.:
0
Cov.:
32
AF XY:
0.000134
AC XY:
10
AN XY:
74434
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.000392
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00116
Gnomad4 SAS
AF:
0.000207
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000294
Gnomad4 OTH
AF:
0.00
Bravo
AF:
0.000155

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not provided Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingEurofins Ntd Llc (ga)Mar 14, 2016- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.70
CADD
Benign
1.6
DANN
Benign
0.90

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.

Other links and lift over

dbSNP: rs549949982; hg19: chr6-32006244; COSMIC: COSV100926471; COSMIC: COSV100926471; API