rs148983337

Variant summary

Our verdict is Benign. The variant received -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBS1BS2

The NM_183075.3(CYP2U1):​c.992A>G​(p.Asn331Ser) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00102 in 1,614,126 control chromosomes in the GnomAD database, including 10 homozygotes. In-silico tool predicts a benign outcome for this variant. 17/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: 𝑓 0.00098 ( 0 hom., cov: 31)
Exomes 𝑓: 0.0010 ( 10 hom. )

Consequence

CYP2U1
NM_183075.3 missense

Scores

19

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:4

Conservation

PhyloP100: -0.159

Publications

9 publications found
Variant links:
Genes affected
CYP2U1 (HGNC:20582): (cytochrome P450 family 2 subfamily U 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. This enzyme is a hydroxylase that metabolizes arachidonic acid, docosahexaenoic acid, and other long chain fatty acids. [provided by RefSeq, Jul 2008]
CYP2U1-AS1 (HGNC:54817): (CYP2U1 and SGMS2 antisense RNA 1)

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -20 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.0032574534).
BP6
Variant 4-107945471-A-G is Benign according to our data. Variant chr4-107945471-A-G is described in ClinVar as Benign/Likely_benign. ClinVar VariationId is 458309.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BS1
Variant frequency is greater than expected in population sas. GnomAd4 allele frequency = 0.000978 (149/152338) while in subpopulation SAS AF = 0.00311 (15/4826). AF 95% confidence interval is 0.00192. There are 0 homozygotes in GnomAd4. There are 75 alleles in the male GnomAd4 subpopulation. Median coverage is 31. This position passed quality control check.
BS2
High Homozygotes in GnomAdExome4 at 10 AR gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
CYP2U1NM_183075.3 linkc.992A>G p.Asn331Ser missense_variant Exon 2 of 5 ENST00000332884.11 NP_898898.1 Q7Z449-1
CYP2U1XM_005262717.2 linkc.1046A>G p.Asn349Ser missense_variant Exon 2 of 5 XP_005262774.1
CYP2U1XM_005262720.2 linkc.491-1905A>G intron_variant Intron 1 of 3 XP_005262777.1
LOC107986298XR_001741784.2 linkn.204+33249T>C intron_variant Intron 1 of 1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
CYP2U1ENST00000332884.11 linkc.992A>G p.Asn331Ser missense_variant Exon 2 of 5 1 NM_183075.3 ENSP00000333212.6 Q7Z449-1

Frequencies

GnomAD3 genomes
AF:
0.000979
AC:
149
AN:
152220
Hom.:
0
Cov.:
31
show subpopulations
Gnomad AFR
AF:
0.0000482
Gnomad AMI
AF:
0.0263
Gnomad AMR
AF:
0.000982
Gnomad ASJ
AF:
0.000288
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00311
Gnomad FIN
AF:
0.0000941
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00132
Gnomad OTH
AF:
0.000478
GnomAD2 exomes
AF:
0.00123
AC:
309
AN:
250826
AF XY:
0.00144
show subpopulations
Gnomad AFR exome
AF:
0.0000617
Gnomad AMR exome
AF:
0.000434
Gnomad ASJ exome
AF:
0.000298
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.000139
Gnomad NFE exome
AF:
0.00153
Gnomad OTH exome
AF:
0.00164
GnomAD4 exome
AF:
0.00103
AC:
1500
AN:
1461788
Hom.:
10
Cov.:
32
AF XY:
0.00111
AC XY:
805
AN XY:
727196
show subpopulations
African (AFR)
AF:
0.0000896
AC:
3
AN:
33480
American (AMR)
AF:
0.000604
AC:
27
AN:
44720
Ashkenazi Jewish (ASJ)
AF:
0.000306
AC:
8
AN:
26134
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39694
South Asian (SAS)
AF:
0.00311
AC:
268
AN:
86254
European-Finnish (FIN)
AF:
0.000112
AC:
6
AN:
53348
Middle Eastern (MID)
AF:
0.00659
AC:
38
AN:
5768
European-Non Finnish (NFE)
AF:
0.000965
AC:
1073
AN:
1111996
Other (OTH)
AF:
0.00127
AC:
77
AN:
60394
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.463
Heterozygous variant carriers
0
81
162
242
323
404
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Exome Hom
Variant carriers
0
34
68
102
136
170
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
GnomAD4 genome
AF:
0.000978
AC:
149
AN:
152338
Hom.:
0
Cov.:
31
AF XY:
0.00101
AC XY:
75
AN XY:
74490
show subpopulations
African (AFR)
AF:
0.0000481
AC:
2
AN:
41578
American (AMR)
AF:
0.000980
AC:
15
AN:
15302
Ashkenazi Jewish (ASJ)
AF:
0.000288
AC:
1
AN:
3472
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5190
South Asian (SAS)
AF:
0.00311
AC:
15
AN:
4826
European-Finnish (FIN)
AF:
0.0000941
AC:
1
AN:
10624
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
294
European-Non Finnish (NFE)
AF:
0.00132
AC:
90
AN:
68028
Other (OTH)
AF:
0.000473
AC:
1
AN:
2112
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.497
Heterozygous variant carriers
0
7
15
22
30
37
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Variant carriers
0
2
4
6
8
10
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
Alfa
AF:
0.00134
Hom.:
2
Bravo
AF:
0.00108
TwinsUK
AF:
0.000539
AC:
2
ALSPAC
AF:
0.000778
AC:
3
ESP6500AA
AF:
0.00
AC:
0
ESP6500EA
AF:
0.00140
AC:
12
ExAC
AF:
0.00125
AC:
152
Asia WGS
AF:
0.000289
AC:
1
AN:
3478
EpiCase
AF:
0.00180
EpiControl
AF:
0.00225

ClinVar

Significance: Benign/Likely benign
Submissions summary: Benign:4
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

Spastic paraplegia Benign:1
Jan 20, 2025
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Hereditary spastic paraplegia Benign:1
Feb 18, 2021
Genome Diagnostics Laboratory, The Hospital for Sick Children
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

not provided Benign:1
May 01, 2025
CeGaT Center for Human Genetics Tuebingen
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

CYP2U1: BP4 -

CYP2U1-related disorder Benign:1
Apr 01, 2022
PreventionGenetics, part of Exact Sciences
Significance:Likely benign
Review Status:no assertion criteria provided
Collection Method:clinical testing

This variant is classified as likely benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.067
BayesDel_addAF
Benign
-0.62
T
BayesDel_noAF
Benign
-0.66
CADD
Benign
3.0
DANN
Benign
0.67
DEOGEN2
Benign
0.073
T;T
Eigen
Benign
-1.1
Eigen_PC
Benign
-1.1
FATHMM_MKL
Benign
0.071
N
LIST_S2
Benign
0.59
T;T
M_CAP
Benign
0.014
T
MetaRNN
Benign
0.0033
T;T
MetaSVM
Benign
-1.0
T
MutationAssessor
Benign
-0.29
N;.
PhyloP100
-0.16
PrimateAI
Benign
0.25
T
PROVEAN
Benign
-0.35
N;N
REVEL
Benign
0.028
Sift
Benign
0.69
T;T
Sift4G
Benign
0.71
T;T
Polyphen
0.0090
B;.
Vest4
0.030
MVP
0.38
MPC
0.12
ClinPred
0.0071
T
GERP RS
-2.6
Varity_R
0.030
gMVP
0.29
Mutation Taster
=96/4
polymorphism

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.030
Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

Other links and lift over

dbSNP: rs148983337; hg19: chr4-108866627; COSMIC: COSV60549179; COSMIC: COSV60549179; API