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GeneBe

7-99863541-A-G

Variant summary

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

The NM_057095.3(CYP3A43):c.1258A>G(p.Ser420Gly) variant causes a missense change. The variant allele was found at a frequency of 0.00000815 in 1,595,748 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 32)
Exomes 𝑓: 0.0000083 ( 0 hom. )

Consequence

CYP3A43
NM_057095.3 missense

Scores

1
10
8

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 4.53
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]

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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
CYP3A43NM_057095.3 linkuse as main transcriptc.1258A>G p.Ser420Gly missense_variant 12/13 ENST00000354829.7

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
CYP3A43ENST00000354829.7 linkuse as main transcriptc.1258A>G p.Ser420Gly missense_variant 12/131 NM_057095.3 A1Q9HB55-1

Frequencies

GnomAD3 genomes
AF:
0.00000657
AC:
1
AN:
152224
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000147
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.00000430
AC:
1
AN:
232394
Hom.:
0
AF XY:
0.00
AC XY:
0
AN XY:
125680
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:
0.00000922
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000831
AC:
12
AN:
1443524
Hom.:
0
Cov.:
30
AF XY:
0.00000697
AC XY:
5
AN XY:
717486
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:
0.0000108
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.00000657
AC:
1
AN:
152224
Hom.:
0
Cov.:
32
AF XY:
0.00
AC XY:
0
AN XY:
74376
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000147
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.0000712
Hom.:
0

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 submitterclinical testingAmbry GeneticsSep 27, 2021The c.1261A>G (p.S421G) alteration is located in exon 12 (coding exon 12) of the CYP3A43 gene. This alteration results from a A to G substitution at nucleotide position 1261, causing the serine (S) at amino acid position 421 to be replaced by a glycine (G). 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
0.13
BayesDel_addAF
Benign
0.0041
T
BayesDel_noAF
Benign
-0.23
Cadd
Benign
23
Dann
Uncertain
0.98
DEOGEN2
Benign
0.11
T;.;.;.
Eigen
Uncertain
0.34
Eigen_PC
Benign
0.18
FATHMM_MKL
Uncertain
0.91
D
LIST_S2
Uncertain
0.88
D;D;D;D
M_CAP
Benign
0.040
D
MetaRNN
Uncertain
0.46
T;T;T;T
MetaSVM
Uncertain
0.029
D
MutationAssessor
Pathogenic
3.9
H;.;.;.
MutationTaster
Benign
1.0
D;D;D;D;D;D;D
PrimateAI
Benign
0.36
T
PROVEAN
Uncertain
-3.4
D;D;D;D
REVEL
Uncertain
0.43
Sift
Uncertain
0.0090
D;D;D;D
Sift4G
Uncertain
0.0040
D;D;D;D
Polyphen
0.77
P;.;.;.
Vest4
0.29
MutPred
0.52
Loss of stability (P = 0.017);.;.;.;
MVP
0.80
MPC
0.042
ClinPred
0.93
D
GERP RS
2.3
Varity_R
0.54
gMVP
0.73

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.060
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: rs1299212332; hg19: chr7-99461164; API