Variant chr7-99856854-C-A details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Uncertain significance. Variant got 1 ACMG points: 2P and 1B. PM2BP4

The NM_057095.3(CYP3A43):c.820C>A(p.Gln274Lys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000479 in 1,461,680 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 16/21 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: 0.0000048 ( 0 hom. )

Consequence

CYP3A43
NM_057095.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.152

Variant links:

Genes affected

CYP3A43 (HGNC:17450): (cytochrome P450 family 3 subfamily A member 43) 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. The encoded protein has a low level of testosterone hydroxylase activity, and may play a role in aging mechanisms and cancer progression. This gene is part of a cluster of cytochrome P450 genes on chromosome 7q21.1. Alternate splicing results in multiple transcript variants encoding different isoforms. [provided by RefSeq, Jul 2013]

CYP3A43 links:

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 1 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.32621497).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
CYP3A43	NM_057095.3 linkuse as main transcript	c.820C>A	p.Gln274Lys	missense_variant	9/13	ENST00000354829.7

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
CYP3A43	ENST00000354829.7 linkuse as main transcript	c.820C>A	p.Gln274Lys	missense_variant	9/13	1	NM_057095.3	A1	Q9HB55-1

Frequencies

GnomAD3 genomes

Cov.:

GnomAD3 exomes

AF:

0.00000399

AC:

AN:

250856

Hom.:

AF XY:

0.00000738

AC XY:

AN XY:

135584

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:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00000882

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000479

AC:

AN:

1461680

Hom.:

Cov.:

AF XY:

0.00000275

AC XY:

AN XY:

727138

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:

0.00000630

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

Cov.:

Bravo

AF:

0.00000756

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

Jan 08, 2024

The c.820C>A (p.Q274K) alteration is located in exon 9 (coding exon 9) of the CYP3A43 gene. This alteration results from a C to A substitution at nucleotide position 820, causing the glutamine (Q) at amino acid position 274 to be replaced by a lysine (K). 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

0.12

BayesDel_addAF

Benign

-0.12

BayesDel_noAF

Benign

-0.41

CADD

Benign

DANN

Benign

0.90

DEOGEN2

Benign

0.014

T;.;.;.;.;.

Eigen

Benign

-0.61

Eigen_PC

Benign

-0.62

FATHMM_MKL

Uncertain

0.77

LIST_S2

Uncertain

0.95

D;D;D;D;D;D

M_CAP

Benign

0.027

MetaRNN

Benign

0.33

T;T;T;T;T;T

MetaSVM

Benign

-0.88

MutationAssessor

Benign

1.6

L;.;.;.;L;L

MutationTaster

Benign

1.0

N;N;N;N;N;N;N

PrimateAI

Benign

0.46

PROVEAN

Benign

-0.29

N;N;N;N;N;N

REVEL

Benign

0.059

Sift

Pathogenic

0.0

D;D;D;D;D;D

Sift4G

Pathogenic

0.0010

D;D;T;T;D;D

Polyphen

0.012

B;.;.;.;B;.

Vest4

0.19

MutPred

0.55

Gain of ubiquitination at Q274 (P = 0.0258);.;.;.;Gain of ubiquitination at Q274 (P = 0.0258);Gain of ubiquitination at Q274 (P = 0.0258);

MVP

0.70

MPC

0.027

ClinPred

0.32

GERP RS

0.94

Varity_R

0.32

gMVP

0.61

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