chr8-58492376-G-C

Variant summary

Our verdict is Benign. The variant received -9 ACMG points: 0P and 9B. BP4_StrongBP6BS2

The NM_000780.4(CYP7A1):​c.1192C>G​(p.Pro398Ala) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00433 in 1,613,906 control chromosomes in the GnomAD database, including 21 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.0029 ( 0 hom., cov: 32)
Exomes 𝑓: 0.0045 ( 21 hom. )

Consequence

CYP7A1
NM_000780.4 missense

Scores

5
7
7

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:1B:5

Conservation

PhyloP100: 7.85

Publications

11 publications found
Variant links:
Genes affected
CYP7A1 (HGNC:2651): (cytochrome P450 family 7 subfamily A 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 endoplasmic reticulum membrane protein catalyzes the first reaction in the cholesterol catabolic pathway in the liver, which converts cholesterol to bile acids. This reaction is the rate limiting step and the major site of regulation of bile acid synthesis, which is the primary mechanism for the removal of cholesterol from the body. Polymorphisms in the promoter of this gene are associated with defects in bile acid synthesis. [provided by RefSeq, Feb 2010]
CYP7A1 Gene-Disease associations (from GenCC):
  • hypercholesterolemia due to cholesterol 7alpha-hydroxylase deficiency
    Inheritance: SD Classification: SUPPORTIVE Submitted by: Orphanet

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -9 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.03252712).
BP6
Variant 8-58492376-G-C is Benign according to our data. Variant chr8-58492376-G-C is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 288450.
BS2
High Homozygotes in GnomAdExome4 at 21 SD gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
CYP7A1NM_000780.4 linkc.1192C>G p.Pro398Ala missense_variant Exon 5 of 6 ENST00000301645.4 NP_000771.2 P22680

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
CYP7A1ENST00000301645.4 linkc.1192C>G p.Pro398Ala missense_variant Exon 5 of 6 1 NM_000780.4 ENSP00000301645.3 P22680

Frequencies

GnomAD3 genomes
AF:
0.00290
AC:
441
AN:
152084
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.000869
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00131
Gnomad ASJ
AF:
0.00317
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00478
Gnomad FIN
AF:
0.00746
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00390
Gnomad OTH
AF:
0.00334
GnomAD2 exomes
AF:
0.00341
AC:
858
AN:
251488
AF XY:
0.00361
show subpopulations
Gnomad AFR exome
AF:
0.00141
Gnomad AMR exome
AF:
0.000607
Gnomad ASJ exome
AF:
0.00347
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00633
Gnomad NFE exome
AF:
0.00433
Gnomad OTH exome
AF:
0.00391
GnomAD4 exome
AF:
0.00448
AC:
6544
AN:
1461704
Hom.:
21
Cov.:
31
AF XY:
0.00445
AC XY:
3234
AN XY:
727158
show subpopulations
African (AFR)
AF:
0.000777
AC:
26
AN:
33478
American (AMR)
AF:
0.000783
AC:
35
AN:
44724
Ashkenazi Jewish (ASJ)
AF:
0.00333
AC:
87
AN:
26132
East Asian (EAS)
AF:
0.0000504
AC:
2
AN:
39696
South Asian (SAS)
AF:
0.00445
AC:
384
AN:
86248
European-Finnish (FIN)
AF:
0.00543
AC:
290
AN:
53416
Middle Eastern (MID)
AF:
0.00104
AC:
6
AN:
5768
European-Non Finnish (NFE)
AF:
0.00492
AC:
5466
AN:
1111850
Other (OTH)
AF:
0.00411
AC:
248
AN:
60392
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.463
Heterozygous variant carriers
0
336
673
1009
1346
1682
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Exome Hom
Variant carriers
0
216
432
648
864
1080
<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:
0.00290
AC:
442
AN:
152202
Hom.:
0
Cov.:
32
AF XY:
0.00302
AC XY:
225
AN XY:
74392
show subpopulations
African (AFR)
AF:
0.000867
AC:
36
AN:
41542
American (AMR)
AF:
0.00131
AC:
20
AN:
15302
Ashkenazi Jewish (ASJ)
AF:
0.00317
AC:
11
AN:
3468
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5162
South Asian (SAS)
AF:
0.00499
AC:
24
AN:
4812
European-Finnish (FIN)
AF:
0.00746
AC:
79
AN:
10588
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
294
European-Non Finnish (NFE)
AF:
0.00390
AC:
265
AN:
68006
Other (OTH)
AF:
0.00331
AC:
7
AN:
2116
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.499
Heterozygous variant carriers
0
24
48
71
95
119
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Variant carriers
0
10
20
30
40
50
<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:
0.00370
Hom.:
3
Bravo
AF:
0.00259
TwinsUK
AF:
0.00324
AC:
12
ALSPAC
AF:
0.00675
AC:
26
ESP6500AA
AF:
0.00136
AC:
6
ESP6500EA
AF:
0.00581
AC:
50
ExAC
AF:
0.00325
AC:
394
Asia WGS
AF:
0.00144
AC:
5
AN:
3478
EpiCase
AF:
0.00403
EpiControl
AF:
0.00385

ClinVar

Significance: Conflicting classifications of pathogenicity
Submissions summary: Uncertain:1Benign:5
Revision: criteria provided, conflicting classifications
LINK: link

Submissions by phenotype

not provided Uncertain:1Benign:3
Jan 11, 2025
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Jan 01, 2025
CeGaT Center for Human Genetics Tuebingen
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

CYP7A1: BS2 -

Sep 30, 2022
Mayo Clinic Laboratories, Mayo Clinic
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

-
Breakthrough Genomics, Breakthrough Genomics
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:not provided

- -

not specified Benign:1
Jun 03, 2016
Eurofins Ntd Llc (ga)
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

CYP7A1-related disorder Benign:1
Apr 14, 2021
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
0.11
BayesDel_addAF
Benign
-0.36
T
BayesDel_noAF
Benign
-0.29
CADD
Uncertain
25
DANN
Uncertain
1.0
DEOGEN2
Uncertain
0.69
D
Eigen
Pathogenic
0.81
Eigen_PC
Pathogenic
0.78
FATHMM_MKL
Uncertain
0.95
D
LIST_S2
Uncertain
0.90
D
M_CAP
Benign
0.031
D
MetaRNN
Benign
0.033
T
MetaSVM
Benign
-0.91
T
MutationAssessor
Pathogenic
3.0
M
PhyloP100
7.9
PrimateAI
Uncertain
0.51
T
PROVEAN
Pathogenic
-7.6
D
REVEL
Uncertain
0.40
Sift
Pathogenic
0.0
D
Sift4G
Uncertain
0.010
D
Polyphen
1.0
D
Vest4
0.62
MVP
0.85
MPC
0.13
ClinPred
0.073
T
GERP RS
5.2
Varity_R
0.87
gMVP
0.78
Mutation Taster
=74/26
polymorphism

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

Other links and lift over

dbSNP: rs142708991; hg19: chr8-59404935; API