rs267608295

chr22-42127593-G-Achr22-42127593-G-Cchr22-42127593-G-T

Variant summary

Our verdict is Likely benign. Variant got -4 ACMG points: 0P and 4B. BS2

The NM_000106.6(CYP2D6):c.1027C>T(p.Arg343Trp) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000298 in 1,611,916 control chromosomes in the GnomAD database, with no homozygous occurrence. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R343G) has been classified as Likely benign.

• Frequency:
  • Genomes: 𝑓 0.000040 (0 hom., cov: 34)
  • Exomes 𝑓: 0.000029 (0 hom.)
• Consequence: CYP2D6 NM_000106.6 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 0.481

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]

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

ACMG classification

Verdict is Likely_benign. Variant got -4 ACMG points.

• BS2: High AC in GnomAd at 6 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
CYP2D6	NM_000106.6	c.1027C>T	p.Arg343Trp	missense_variant	7/9	ENST00000645361.2
CYP2D6	NM_001025161.3	c.874C>T	p.Arg292Trp	missense_variant	6/8

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
CYP2D6	ENST00000645361.2	c.1027C>T	p.Arg343Trp	missense_variant	7/9		NM_000106.6	P1
NDUFA6-DT	ENST00000439129.5	n.1718+2186G>A		intron_variant, non_coding_transcript_variant		5

Frequencies

GnomAD3 genomes AF: 0.0000396 AC: 6 AN: 151662 Hom.: 0 Cov.: 34

Gnomad AFR AF: 0.0000486

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.00

Gnomad ASJ AF: 0.00

Gnomad EAS AF: 0.00

Gnomad SAS AF: 0.000834

Gnomad FIN AF: 0.00

Gnomad MID AF: 0.00

Gnomad NFE AF: 0.00

Gnomad OTH AF: 0.00

GnomAD3 exomes AF: 0.0000638 AC: 16 AN: 250948 Hom.: 0 AF XY: 0.0000811 AC XY: 11 AN XY: 135654

Gnomad AFR exome AF: 0.0000618

Gnomad AMR exome AF: 0.00

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.00

Gnomad SAS exome AF: 0.000393

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.0000176

Gnomad OTH exome AF: 0.000163

GnomAD4 exome AF: 0.0000288 AC: 42 AN: 1460140 Hom.: 0 Cov.: 38 AF XY: 0.0000344 AC XY: 25 AN XY: 726366

Gnomad4 AFR exome AF: 0.0000299

Gnomad4 AMR exome AF: 0.0000224

Gnomad4 ASJ exome AF: 0.00

Gnomad4 EAS exome AF: 0.00

Gnomad4 SAS exome AF: 0.000255

Gnomad4 FIN exome AF: 0.00

Gnomad4 NFE exome AF: 0.0000117

Gnomad4 OTH exome AF: 0.0000829

GnomAD4 genome AF: 0.0000395 AC: 6 AN: 151776 Hom.: 0 Cov.: 34 AF XY: 0.0000270 AC XY: 2 AN XY: 74180

Gnomad4 AFR AF: 0.0000484

Gnomad4 AMR AF: 0.00

Gnomad4 ASJ AF: 0.00

Gnomad4 EAS AF: 0.00

Gnomad4 SAS AF: 0.000834

Gnomad4 FIN AF: 0.00

Gnomad4 NFE AF: 0.00

Gnomad4 OTH AF: 0.00

Alfa AF: 0.0000494 Hom.: 0

ESP6500AA AF: 0.000227 AC: 1

ESP6500EA AF: 0.00 AC: 0

ExAC AF: 0.0000659 AC: 8

EpiCase AF: 0.00

EpiControl AF: 0.0000593

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.18
BayesDel_addAF	Benign	-0.088	T
BayesDel_noAF	Uncertain	-0.040
Cadd	Uncertain	25
Dann	Uncertain	1.0
DEOGEN2	Benign	0.028	T;T;T;T;.
Eigen	Uncertain	0.28
Eigen_PC	Benign	0.011
FATHMM_MKL	Benign	0.30	N
M_CAP	Uncertain	0.089	D
MetaRNN	Uncertain	0.70	D;D;D;D;D
MetaSVM	Uncertain	-0.0024	T
MutationAssessor	Pathogenic	4.0	H;H;H;.;.
MutationTaster	Benign	0.92	N;N;N
PrimateAI	Benign	0.40	T
Vest4		0.63, 0.56, 0.61
MVP		0.81
MPC		0.37
ClinPred		0.95	D
GERP RS		2.6
Varity_R		0.21
gMVP		0.54

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.010		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

Other links and lift over

dbSNP: rs267608295; hg19: chr22-42523595;