chr22-42126597-C-T

Position:

chr22-42126597-C-T

Variant summary

Our verdict is Likely benign. Variant got -6 ACMG points: 0P and 6B. BP4_ModerateBS2

The NM_000106.6(CYP2D6):c.1471G>A(p.Glu491Lys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000112 in 1,603,674 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. 15/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000060 ( 0 hom., cov: 33)

Exomes 𝑓: 0.0000062 ( 1 hom. )

Consequence

CYP2D6
NM_000106.6 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.166

Variant links:

Genes affected

CYP2D6 (HGNC:2625): (cytochrome P450 family 2 subfamily D member 6) 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 and is known to metabolize as many as 25% of commonly prescribed drugs. Its substrates include antidepressants, antipsychotics, analgesics and antitussives, beta adrenergic blocking agents, antiarrythmics and antiemetics. The gene is highly polymorphic in the human population; certain alleles result in the poor metabolizer phenotype, characterized by a decreased ability to metabolize the enzyme's substrates. Some individuals with the poor metabolizer phenotype have no functional protein since they carry 2 null alleles whereas in other individuals the gene is absent. This gene can vary in copy number and individuals with the ultrarapid metabolizer phenotype can have 3 or more active copies of the gene. Alternatively spliced transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Jul 2014]

CYP2D6 links:

NDUFA6-DT (HGNC:45273): (NDUFA6 divergent transcript)

NDUFA6-DT links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -6 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.24337006).

BS2

High AC in GnomAd4 at 9 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
CYP2D6	NM_000106.6 linkuse as main transcript	c.1471G>A	p.Glu491Lys	missense_variant	9/9	ENST00000645361.2
CYP2D6	NM_001025161.3 linkuse as main transcript	c.1318G>A	p.Glu440Lys	missense_variant	8/8

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
CYP2D6	ENST00000645361.2 linkuse as main transcript	c.1471G>A	p.Glu491Lys	missense_variant	9/9		NM_000106.6	P1	P10635-1
NDUFA6-DT	ENST00000439129.5 linkuse as main transcript	n.1718+1190C>T		intron_variant, non_coding_transcript_variant		5

Frequencies

GnomAD3 genomes

AF:

0.0000596

AC:

AN:

151016

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000172

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.000209

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000148

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000122

AC:

AN:

244958

Hom.:

AF XY:

0.00

AC XY:

AN XY:

132694

show subpopulations

Gnomad AFR exome

AF:

0.000126

Gnomad AMR exome

AF:

0.0000298

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:

0.00000620

AC:

AN:

1452658

Hom.:

Cov.:

AF XY:

0.00000415

AC XY:

AN XY:

722372

show subpopulations

Gnomad4 AFR exome

AF:

0.0000607

Gnomad4 AMR exome

AF:

0.0000231

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.0000117

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00000271

Gnomad4 OTH exome

AF:

0.0000334

GnomAD4 genome

AF:

0.0000596

AC:

AN:

151016

Hom.:

Cov.:

AF XY:

0.0000678

AC XY:

AN XY:

73700

show subpopulations

Gnomad4 AFR

AF:

0.000172

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.000209

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000148

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.0000574

Hom.:

Bravo

AF:

0.0000453

ExAC

AF:

0.00000825

AC:

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

Mar 23, 2022

The c.1471G>A (p.E491K) alteration is located in exon 9 (coding exon 9) of the CYP2D6 gene. This alteration results from a G to A substitution at nucleotide position 1471, causing the glutamic acid (E) at amino acid position 491 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

0.13

BayesDel_addAF

Benign

-0.34

BayesDel_noAF

Benign

-0.48

CADD

Benign

DANN

Benign

0.95

DEOGEN2

Benign

0.0016

T;T;T;T;.

Eigen

Benign

-0.80

Eigen_PC

Benign

-0.74

FATHMM_MKL

Benign

0.30

LIST_S2

Benign

0.74

.;.;T;T;T

M_CAP

Benign

0.039

MetaRNN

Benign

0.24

T;T;T;T;T

MetaSVM

Benign

-0.95

MutationAssessor

Benign

-0.56

N;N;N;.;.

MutationTaster

Benign

0.92

N;N;N

PrimateAI

Benign

0.39

PROVEAN

Benign

-0.97

.;.;N;.;N

REVEL

Benign

0.050

Sift

Benign

0.34

.;.;T;.;T

Sift4G

Benign

0.59

.;.;T;T;T

Vest4

0.21, 0.25, 0.27

MutPred

0.48

Gain of ubiquitination at E491 (P = 0.0428);Gain of ubiquitination at E491 (P = 0.0428);Gain of ubiquitination at E491 (P = 0.0428);.;.;

MVP

0.57

MPC

0.37

ClinPred

0.067

GERP RS

1.4

Varity_R

0.24

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