rs104894144

Variant summary

Our verdict is Likely pathogenic. The variant received 6 ACMG points: 6P and 0B. PM2PP2PP3_ModeratePP5

The NM_000102.4(CYP17A1):​c.985T>G​(p.Tyr329Asp) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.000000688 in 1,453,654 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 Pathogenic (no stars). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. Y329H) has been classified as Uncertain significance.

Frequency

Genomes: not found (cov: 32)
Exomes 𝑓: 6.9e-7 ( 0 hom. )

Consequence

CYP17A1
NM_000102.4 missense

Scores

2
8
8

Clinical Significance

Pathogenic no assertion criteria provided P:1

Conservation

PhyloP100: 7.61

Publications

14 publications found
Variant links:
Genes affected
CYP17A1 (HGNC:2593): (cytochrome P450 family 17 subfamily A 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 endoplasmic reticulum. It has both 17alpha-hydroxylase and 17,20-lyase activities and is a key enzyme in the steroidogenic pathway that produces progestins, mineralocorticoids, glucocorticoids, androgens, and estrogens. Mutations in this gene are associated with isolated steroid-17 alpha-hydroxylase deficiency, 17-alpha-hydroxylase/17,20-lyase deficiency, pseudohermaphroditism, and adrenal hyperplasia. [provided by RefSeq, Jul 2008]
WBP1L (HGNC:23510): (WW domain binding protein 1 like) Predicted to enable ubiquitin protein ligase binding activity. Predicted to act upstream of or within CXCL12-activated CXCR4 signaling pathway; hemopoiesis; and positive regulation of protein ubiquitination. Predicted to be integral component of membrane. [provided by Alliance of Genome Resources, Apr 2022]
CYP17A1-AS1 (HGNC:31671): (CYP17A1 antisense RNA 1)

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_pathogenic. The variant received 6 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PP2
Missense variant in the gene, where a lot of missense mutations are associated with disease in ClinVar. The gene has 48 curated pathogenic missense variants (we use a threshold of 10). The gene has 2 curated benign missense variants. Gene score misZ: 1.2356 (below the threshold of 3.09). Trascript score misZ: 1.3377 (below the threshold of 3.09). GenCC associations: The gene is linked to congenital adrenal hyperplasia due to 17-alpha-hydroxylase deficiency, 46,XY disorder of sex development due to isolated 17,20-lyase deficiency.
PP3
MetaRNN computational evidence supports a deleterious effect, 0.918
PP5
Variant 10-102832665-A-C is Pathogenic according to our data. Variant chr10-102832665-A-C is described in ClinVar as Pathogenic. ClinVar VariationId is 1798.Status of the report is no_assertion_criteria_provided, 0 stars.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_000102.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Selected
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
CYP17A1
NM_000102.4
MANE Select
c.985T>Gp.Tyr329Asp
missense
Exon 6 of 8NP_000093.1

Ensembl Transcripts

Selected
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
CYP17A1
ENST00000369887.4
TSL:1 MANE Select
c.985T>Gp.Tyr329Asp
missense
Exon 6 of 8ENSP00000358903.3
CYP17A1
ENST00000639393.1
TSL:5
c.985T>Gp.Tyr329Asp
missense
Exon 6 of 8ENSP00000492651.1
CYP17A1
ENST00000638971.1
TSL:5
c.898T>Gp.Tyr300Asp
missense
Exon 5 of 7ENSP00000492313.1

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD4 exome
AF:
6.88e-7
AC:
1
AN:
1453654
Hom.:
0
Cov.:
28
AF XY:
0.00000138
AC XY:
1
AN XY:
723746
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
33296
American (AMR)
AF:
0.00
AC:
0
AN:
44720
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26100
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39660
South Asian (SAS)
AF:
0.00
AC:
0
AN:
86064
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53414
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5748
European-Non Finnish (NFE)
AF:
9.05e-7
AC:
1
AN:
1104552
Other (OTH)
AF:
0.00
AC:
0
AN:
60100
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.425
Heterozygous variant carriers
0
0
1
1
2
2
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance
GnomAD4 genome
Cov.:
32
Alfa
AF:
0.00
Hom.:
0

ClinVar

ClinVar submissions as Germline

Significance:Pathogenic
Revision:no assertion criteria provided
View on ClinVar
Pathogenic
VUS
Benign
Condition
1
-
-
17-alpha-hydroxylase/17,20-lyase deficiency, combined complete (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Uncertain
0.35
BayesDel_addAF
Uncertain
0.11
D
BayesDel_noAF
Uncertain
-0.080
CADD
Benign
23
DANN
Benign
0.96
DEOGEN2
Uncertain
0.49
T
Eigen
Benign
-0.16
Eigen_PC
Benign
-0.059
FATHMM_MKL
Uncertain
0.94
D
LIST_S2
Benign
0.79
T
M_CAP
Pathogenic
0.37
D
MetaRNN
Pathogenic
0.92
D
MetaSVM
Benign
-0.64
T
MutationAssessor
Benign
1.1
L
PhyloP100
7.6
PrimateAI
Benign
0.32
T
PROVEAN
Benign
-0.13
N
REVEL
Uncertain
0.41
Sift
Uncertain
0.013
D
Sift4G
Uncertain
0.0090
D
Polyphen
0.12
B
Vest4
0.76
MutPred
0.84
Gain of disorder (P = 0.009)
MVP
0.85
MPC
0.57
ClinPred
0.71
D
GERP RS
4.5
Varity_R
0.46
gMVP
0.83
Mutation Taster
=31/69
disease causing (ClinVar)

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

Publications

Other links and lift over

dbSNP: rs104894144; hg19: chr10-104592422; API