Variant 6-46631010-T-C details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The NM_016593.5(CYP39A1):c.793A>G(p.Asn265Asp) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000205 in 1,461,780 control chromosomes in the GnomAD database, with no homozygous occurrence. 13/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 0.0000021 ( 0 hom. )

Consequence

CYP39A1
NM_016593.5 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 2.20

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]

CYP39A1 links:

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
CYP39A1	NM_016593.5 linkuse as main transcript	c.793A>G	p.Asn265Asp	missense_variant	6/12	ENST00000275016.3

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris
CYP39A1	ENST00000275016.3 linkuse as main transcript	c.793A>G	p.Asn265Asp	missense_variant	6/12	1	NM_016593.5	P1
CYP39A1	ENST00000619708.4 linkuse as main transcript	c.277A>G	p.Asn93Asp	missense_variant	5/11	1
CYP39A1	ENST00000480804.1 linkuse as main transcript	n.151+5379A>G		intron_variant, non_coding_transcript_variant		5

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

AF:

0.00000205

AC:

AN:

1461780

Hom.:

Cov.:

AF XY:

0.00000138

AC XY:

AN XY:

727184

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:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00000270

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

Cov.:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

May 09, 2022

The c.793A>G (p.N265D) alteration is located in exon 6 (coding exon 6) of the CYP39A1 gene. This alteration results from a A to G substitution at nucleotide position 793, causing the asparagine (N) at amino acid position 265 to be replaced by an aspartic acid (D). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.25

BayesDel_addAF

Benign

-0.15

BayesDel_noAF

Benign

-0.45

CADD

Benign

DANN

Uncertain

0.99

DEOGEN2

Benign

0.022

.;T

Eigen

Benign

-0.23

Eigen_PC

Benign

-0.24

FATHMM_MKL

Benign

0.45

LIST_S2

Benign

0.79

T;T

M_CAP

Benign

0.022

MetaRNN

Uncertain

0.46

T;T

MetaSVM

Benign

-0.99

MutationAssessor

Uncertain

2.5

.;M

MutationTaster

Benign

1.0

PrimateAI

Benign

0.31

PROVEAN

Benign

-2.3

.;N

REVEL

Benign

0.21

Sift

Benign

0.078

.;T

Sift4G

Benign

0.13

T;D

Polyphen

0.28

.;B

Vest4

0.48

MutPred

0.58

.;Gain of relative solvent accessibility (P = 0.09);

MVP

0.78

MPC

0.16

ClinPred

0.73

GERP RS

4.7

Varity_R

0.14

gMVP

0.59

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.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over