2-38074356-G-C

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 4P and 2B. PM2PM5BP4_Moderate

The NM_000104.4(CYP1B1):ā€‹c.1033C>Gā€‹(p.Leu345Val) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000657 in 152,254 control chromosomes in the GnomAD database, with no homozygous occurrence. 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 variant affecting the same amino acid position, but resulting in a different missense (i.e. L345F) has been classified as Likely pathogenic.

Frequency

Genomes: š‘“ 0.0000066 ( 0 hom., cov: 33)

Consequence

CYP1B1
NM_000104.4 missense

Scores

3
13

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: -0.509
Variant links:
Genes affected
CYP1B1 (HGNC:2597): (cytochrome P450 family 1 subfamily B member 1) 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 enzyme encoded by this gene localizes to the endoplasmic reticulum and metabolizes procarcinogens such as polycyclic aromatic hydrocarbons and 17beta-estradiol. Mutations in this gene have been associated with primary congenital glaucoma; therefore it is thought that the enzyme also metabolizes a signaling molecule involved in eye development, possibly a steroid. [provided by RefSeq, Jul 2008]
CYP1B1-AS1 (HGNC:28543): (CYP1B1 antisense RNA 1)

Genome browser will be placed here

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;
PM5
Other missense variant is known to change same aminoacid residue: Variant chrnull-null-null-null is described in UniProt as null.
BP4
Computational evidence support a benign effect (MetaRNN=0.19948736).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
CYP1B1NM_000104.4 linkc.1033C>G p.Leu345Val missense_variant Exon 2 of 3 ENST00000610745.5 NP_000095.2

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
CYP1B1ENST00000610745.5 linkc.1033C>G p.Leu345Val missense_variant Exon 2 of 3 1 NM_000104.4 ENSP00000478561.1 Q16678

Frequencies

GnomAD3 genomes
AF:
0.00000657
AC:
1
AN:
152254
Hom.:
0
Cov.:
33
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
GnomAD4 exome
Cov.:
31
GnomAD4 genome
AF:
0.00000657
AC:
1
AN:
152254
Hom.:
0
Cov.:
33
AF XY:
0.0000134
AC XY:
1
AN XY:
74378
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
Bravo
AF:
0.00000378

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.20
BayesDel_addAF
Benign
-0.17
T
BayesDel_noAF
Benign
-0.49
CADD
Benign
17
DANN
Uncertain
0.98
DEOGEN2
Benign
0.21
T;T
Eigen
Benign
-0.69
Eigen_PC
Benign
-0.73
FATHMM_MKL
Benign
0.22
N
LIST_S2
Benign
0.73
.;T
M_CAP
Uncertain
0.15
D
MetaRNN
Benign
0.20
T;T
MetaSVM
Benign
-0.46
T
MutationAssessor
Uncertain
2.4
M;M
PrimateAI
Benign
0.45
T
Sift4G
Benign
0.16
T;T
Vest4
0.31
MVP
0.13
ClinPred
0.15
T
GERP RS
-0.31
Varity_R
0.14
gMVP
0.57

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: rs66583685; hg19: chr2-38301499; API