rs2229150

Variant summary

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

The NM_001319217.2(CYP1A1):​c.277C>T​(p.Arg93Trp) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000783 in 1,614,006 control chromosomes in the GnomAD database, including 3 homozygotes. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another nucleotide change resulting in same amino acid change has been previously reported as Likely benignin UniProt. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R93Q) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.00062 ( 1 hom., cov: 32)
Exomes 𝑓: 0.00080 ( 2 hom. )

Consequence

CYP1A1
NM_001319217.2 missense

Scores

4
5
10

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 0.290
Variant links:
Genes affected
CYP1A1 (HGNC:2595): (cytochrome P450 family 1 subfamily A member 1) This gene, CYP1A1, 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 its expression is induced by some polycyclic aromatic hydrocarbons (PAHs), some of which are found in cigarette smoke. The enzyme's endogenous substrate is unknown; however, it is able to metabolize some PAHs to carcinogenic intermediates. The gene has been associated with lung cancer risk. A related family member, CYP1A2, is located approximately 25 kb away from CYP1A1 on chromosome 15. Alternative splicing results in multiple transcript variants encoding distinct isoforms. [provided by RefSeq, Jan 2016]

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=0.12483463).
BS2
High Homozygotes in GnomAdExome4 at 2 AR gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
CYP1A1NM_001319217.2 linkuse as main transcriptc.277C>T p.Arg93Trp missense_variant 2/7 ENST00000379727.8
CYP1A1NM_000499.5 linkuse as main transcriptc.277C>T p.Arg93Trp missense_variant 2/7
CYP1A1NM_001319216.2 linkuse as main transcriptc.277C>T p.Arg93Trp missense_variant 2/6

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
CYP1A1ENST00000379727.8 linkuse as main transcriptc.277C>T p.Arg93Trp missense_variant 2/71 NM_001319217.2 P1P04798-1

Frequencies

GnomAD3 genomes
AF:
0.000624
AC:
95
AN:
152136
Hom.:
1
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.000266
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00105
Gnomad ASJ
AF:
0.000288
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.000415
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.000956
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.000685
AC:
172
AN:
251228
Hom.:
0
AF XY:
0.000729
AC XY:
99
AN XY:
135862
show subpopulations
Gnomad AFR exome
AF:
0.000185
Gnomad AMR exome
AF:
0.000376
Gnomad ASJ exome
AF:
0.000397
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.000817
Gnomad FIN exome
AF:
0.000139
Gnomad NFE exome
AF:
0.00107
Gnomad OTH exome
AF:
0.000326
GnomAD4 exome
AF:
0.000799
AC:
1168
AN:
1461752
Hom.:
2
Cov.:
31
AF XY:
0.000791
AC XY:
575
AN XY:
727188
show subpopulations
Gnomad4 AFR exome
AF:
0.000149
Gnomad4 AMR exome
AF:
0.000402
Gnomad4 ASJ exome
AF:
0.000344
Gnomad4 EAS exome
AF:
0.000327
Gnomad4 SAS exome
AF:
0.000812
Gnomad4 FIN exome
AF:
0.0000751
Gnomad4 NFE exome
AF:
0.000910
Gnomad4 OTH exome
AF:
0.000497
GnomAD4 genome
AF:
0.000624
AC:
95
AN:
152254
Hom.:
1
Cov.:
32
AF XY:
0.000618
AC XY:
46
AN XY:
74440
show subpopulations
Gnomad4 AFR
AF:
0.000265
Gnomad4 AMR
AF:
0.00105
Gnomad4 ASJ
AF:
0.000288
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.000415
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.000956
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.000899
Hom.:
0
Bravo
AF:
0.000582
TwinsUK
AF:
0.00108
AC:
4
ALSPAC
AF:
0.00104
AC:
4
ESP6500AA
AF:
0.00
AC:
0
ESP6500EA
AF:
0.00105
AC:
9
ExAC
AF:
0.000749
AC:
91
Asia WGS
AF:
0.000289
AC:
1
AN:
3478
EpiCase
AF:
0.000818
EpiControl
AF:
0.000652

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.22
BayesDel_addAF
Benign
-0.27
T
BayesDel_noAF
Benign
-0.22
CADD
Uncertain
24
DANN
Uncertain
1.0
DEOGEN2
Benign
0.21
T;T;D;D;D;T
Eigen
Uncertain
0.23
Eigen_PC
Benign
-0.012
FATHMM_MKL
Benign
0.41
N
LIST_S2
Uncertain
0.93
D;D;D;.;.;.
M_CAP
Benign
0.057
D
MetaRNN
Benign
0.12
T;T;T;T;T;T
MetaSVM
Uncertain
0.22
D
MutationAssessor
Pathogenic
4.1
.;.;H;H;H;.
MutationTaster
Benign
1.0
D;D;D;D;D
PrimateAI
Benign
0.30
T
PROVEAN
Pathogenic
-5.6
.;.;D;D;D;D
REVEL
Uncertain
0.41
Sift
Pathogenic
0.0
.;.;D;D;D;D
Sift4G
Pathogenic
0.0
D;D;D;D;D;D
Polyphen
1.0, 1.0
.;D;D;D;D;D
Vest4
0.37
MVP
0.97
MPC
0.034
ClinPred
0.11
T
GERP RS
-1.1
Varity_R
0.66
gMVP
0.77

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.

Other links and lift over

dbSNP: rs2229150; hg19: chr15-75015162; API