chr6-32038516-C-T

Variant summary

Our verdict is Uncertain significance. Variant got 5 ACMG points: 5P and 0B. PM1PM2PP3

The NM_000500.9(CYP21A2):​c.94C>T​(p.Pro32Ser) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000687 in 1,455,616 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 Uncertain significance (★).

Frequency

Genomes: not found (cov: 33)
Exomes 𝑓: 6.9e-7 ( 0 hom. )

Consequence

CYP21A2
NM_000500.9 missense

Scores

3
11
3

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 2.47
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]

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 5 ACMG points.

PM1
In a hotspot region, there are 2 aminoacids with missense pathogenic changes in the window of +-8 aminoacids around while only 0 benign, 3 uncertain in NM_000500.9
PM2
Very rare variant in population databases, with high coverage;
PP3
MetaRNN computational evidence supports a deleterious effect, 0.837

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
CYP21A2NM_000500.9 linkuse as main transcriptc.94C>T p.Pro32Ser missense_variant 1/10 ENST00000644719.2
CYP21A2NM_001128590.4 linkuse as main transcriptc.94C>T p.Pro32Ser missense_variant 1/9
CYP21A2NM_001368143.2 linkuse as main transcriptc.-331C>T 5_prime_UTR_variant 1/10
CYP21A2NM_001368144.2 linkuse as main transcriptc.-241C>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.94C>T p.Pro32Ser missense_variant 1/10 NM_000500.9 P1

Frequencies

GnomAD3 genomes
Cov.:
33
GnomAD3 exomes
AF:
0.00000418
AC:
1
AN:
239444
Hom.:
0
AF XY:
0.00000768
AC XY:
1
AN XY:
130124
show subpopulations
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 SAS exome
AF:
0.0000336
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
6.87e-7
AC:
1
AN:
1455616
Hom.:
0
Cov.:
104
AF XY:
0.00000138
AC XY:
1
AN XY:
723606
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000117
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
33

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 testingAthena DiagnosticsAug 23, 2021- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_addAF
Uncertain
0.047
T
BayesDel_noAF
Benign
-0.17
CADD
Uncertain
25
DANN
Pathogenic
1.0
DEOGEN2
Benign
0.21
.;.;.;T;.;.
Eigen
Uncertain
0.56
Eigen_PC
Uncertain
0.49
FATHMM_MKL
Uncertain
0.95
D
LIST_S2
Uncertain
0.92
.;.;D;D;.;.
M_CAP
Pathogenic
0.60
D
MetaRNN
Pathogenic
0.84
D;D;D;D;D;D
MetaSVM
Uncertain
0.095
D
MutationTaster
Benign
0.98
D;D
PrimateAI
Uncertain
0.51
T
PROVEAN
Uncertain
-4.3
D;.;D;D;D;.
REVEL
Uncertain
0.53
Sift
Uncertain
0.024
D;.;D;D;D;.
Sift4G
Uncertain
0.010
D;.;D;D;D;.
Polyphen
1.0
D;D;.;.;.;D
Vest4
0.54
MutPred
0.56
Loss of catalytic residue at P31 (P = 0.0179);Loss of catalytic residue at P31 (P = 0.0179);Loss of catalytic residue at P31 (P = 0.0179);Loss of catalytic residue at P31 (P = 0.0179);Loss of catalytic residue at P31 (P = 0.0179);Loss of catalytic residue at P31 (P = 0.0179);
MVP
0.97
MPC
3.4
ClinPred
0.96
D
GERP RS
4.5
gMVP
0.77

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: rs1489113187; hg19: chr6-32006293; API