6-46637931-A-C

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2BP4_ModerateBP6_Moderate

The NM_016593.5(CYP39A1):ā€‹c.536T>Gā€‹(p.Leu179Trp) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000685 in 1,460,896 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (ā˜…).

Frequency

Genomes: not found (cov: 32)
Exomes š‘“: 6.8e-7 ( 0 hom. )

Consequence

CYP39A1
NM_016593.5 missense

Scores

3
16

Clinical Significance

Likely benign criteria provided, single submitter B:1

Conservation

PhyloP100: 2.50
Variant links:
Genes affected
CYP39A1 (HGNC:17449): (cytochrome P450 family 39 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 endoplasmic reticulum protein is involved in the conversion of cholesterol to bile acids. Its substrates include the oxysterols 25-hydroxycholesterol, 27-hydroxycholesterol and 24-hydroxycholesterol. Alternate splicing results in multiple transcript variants. [provided by RefSeq, Jul 2013]

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ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -2 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.26296473).
BP6
Variant 6-46637931-A-C is Benign according to our data. Variant chr6-46637931-A-C is described in ClinVar as [Likely_benign]. Clinvar id is 3079609.Status of the report is criteria_provided_single_submitter, 1 stars.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
CYP39A1NM_016593.5 linkuse as main transcriptc.536T>G p.Leu179Trp missense_variant 4/12 ENST00000275016.3

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
CYP39A1ENST00000275016.3 linkuse as main transcriptc.536T>G p.Leu179Trp missense_variant 4/121 NM_016593.5 P1
CYP39A1ENST00000619708.4 linkuse as main transcriptc.20T>G p.Leu7Trp missense_variant 3/111
CYP39A1ENST00000480804.1 linkuse as main transcript upstream_gene_variant 5

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD3 exomes
AF:
0.00000400
AC:
1
AN:
250206
Hom.:
0
AF XY:
0.00
AC XY:
0
AN XY:
135232
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.0000292
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
6.85e-7
AC:
1
AN:
1460896
Hom.:
0
Cov.:
31
AF XY:
0.00
AC XY:
0
AN XY:
726726
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.0000225
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
32

ClinVar

Significance: Likely benign
Submissions summary: Benign:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not specified Benign:1
Likely benign, criteria provided, single submitterclinical testingAmbry GeneticsFeb 17, 2024This alteration is classified as likely benign based on a combination of the following: seen in unaffected individuals, population frequency, intact protein function, lack of segregation with disease, co-occurrence, RNA analysis, in silico models, amino acid conservation, lack of disease association in case-control studies, and/or the mechanism of disease or impacted region is inconsistent with a known cause of pathogenicity. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.25
BayesDel_addAF
Benign
-0.10
T
BayesDel_noAF
Benign
-0.38
CADD
Benign
20
DANN
Benign
0.47
DEOGEN2
Benign
0.13
.;T
Eigen
Benign
-0.57
Eigen_PC
Benign
-0.62
FATHMM_MKL
Benign
0.56
D
LIST_S2
Benign
0.45
T;T
M_CAP
Benign
0.018
T
MetaRNN
Benign
0.26
T;T
MetaSVM
Benign
-0.68
T
MutationAssessor
Uncertain
2.3
.;M
MutationTaster
Benign
1.0
N
PrimateAI
Benign
0.34
T
PROVEAN
Uncertain
-3.4
.;D
REVEL
Benign
0.26
Sift
Benign
0.039
.;D
Sift4G
Uncertain
0.0070
D;D
Polyphen
0.0030
.;B
Vest4
0.45
MutPred
0.64
.;Gain of MoRF binding (P = 0.0352);
MVP
0.55
MPC
0.055
ClinPred
0.40
T
GERP RS
3.5
Varity_R
0.20
gMVP
0.55

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: rs1562015003; hg19: chr6-46605668; API