chr3-42874746-G-A

Variant summary

Our verdict is Benign. Variant got -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBS1BS2

The NM_004391.3(CYP8B1):​c.1071C>T​(p.Leu357=) variant causes a synonymous change. The variant allele was found at a frequency of 0.00129 in 1,614,116 control chromosomes in the GnomAD database, including 26 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★).

Frequency

Genomes: 𝑓 0.0067 ( 10 hom., cov: 32)
Exomes 𝑓: 0.00072 ( 16 hom. )

Consequence

CYP8B1
NM_004391.3 synonymous

Scores

2

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:2

Conservation

PhyloP100: 4.04
Variant links:
Genes affected
CYP8B1 (HGNC:2653): (cytochrome P450 family 8 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. This endoplasmic reticulum membrane protein catalyzes the conversion of 7 alpha-hydroxy-4-cholesten-3-one into 7-alpha,12-alpha-dihydroxy-4-cholesten-3-one. The balance between these two steroids determines the relative amounts of cholic acid and chenodeoxycholic acid both of which are secreted in the bile and affect the solubility of cholesterol. This gene is unique among the cytochrome P450 genes in that it is intronless. [provided by RefSeq, Jul 2008]
ACKR2 (HGNC:1565): (atypical chemokine receptor 2) This gene encodes a beta chemokine receptor, which is predicted to be a seven transmembrane protein similar to G protein-coupled receptors. Chemokines and their receptor-mediated signal transduction are critical for the recruitment of effector immune cells to the inflammation site. This gene is expressed in a range of tissues and hemopoietic cells. The expression of this receptor in lymphatic endothelial cells and overexpression in vascular tumors suggested its function in chemokine-driven recirculation of leukocytes and possible chemokine effects on the development and growth of vascular tumors. This receptor appears to bind the majority of beta-chemokine family members; however, its specific function remains unknown. This gene is mapped to chromosome 3p21.3, a region that includes a cluster of chemokine receptor genes. [provided by RefSeq, Jul 2008]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -20 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.48).
BP6
Variant 3-42874746-G-A is Benign according to our data. Variant chr3-42874746-G-A is described in ClinVar as [Benign]. Clinvar id is 718608.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BS1
Variant frequency is greater than expected in population afr. gnomad4 allele frequency = 0.00674 (1026/152226) while in subpopulation AFR AF= 0.0236 (979/41514). AF 95% confidence interval is 0.0224. There are 10 homozygotes in gnomad4. There are 497 alleles in male gnomad4 subpopulation. Median coverage is 32. This position pass quality control queck.
BS2
High Homozygotes in GnomAd4 at 10 AR gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
CYP8B1NM_004391.3 linkuse as main transcriptc.1071C>T p.Leu357= synonymous_variant 1/1 ENST00000316161.6

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
CYP8B1ENST00000316161.6 linkuse as main transcriptc.1071C>T p.Leu357= synonymous_variant 1/1 NM_004391.3 P1

Frequencies

GnomAD3 genomes
AF:
0.00674
AC:
1025
AN:
152108
Hom.:
10
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0236
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00190
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.000207
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.000103
Gnomad OTH
AF:
0.00479
GnomAD3 exomes
AF:
0.00172
AC:
432
AN:
251366
Hom.:
2
AF XY:
0.00123
AC XY:
167
AN XY:
135868
show subpopulations
Gnomad AFR exome
AF:
0.0239
Gnomad AMR exome
AF:
0.000868
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.0000327
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000704
Gnomad OTH exome
AF:
0.000815
GnomAD4 exome
AF:
0.000718
AC:
1050
AN:
1461890
Hom.:
16
Cov.:
32
AF XY:
0.000619
AC XY:
450
AN XY:
727248
show subpopulations
Gnomad4 AFR exome
AF:
0.0260
Gnomad4 AMR exome
AF:
0.00114
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.0000252
Gnomad4 SAS exome
AF:
0.0000464
Gnomad4 FIN exome
AF:
0.0000187
Gnomad4 NFE exome
AF:
0.0000207
Gnomad4 OTH exome
AF:
0.00157
GnomAD4 genome
AF:
0.00674
AC:
1026
AN:
152226
Hom.:
10
Cov.:
32
AF XY:
0.00668
AC XY:
497
AN XY:
74424
show subpopulations
Gnomad4 AFR
AF:
0.0236
Gnomad4 AMR
AF:
0.00190
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.000207
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.000103
Gnomad4 OTH
AF:
0.00474
Alfa
AF:
0.00177
Hom.:
4
Bravo
AF:
0.00815
Asia WGS
AF:
0.000577
AC:
2
AN:
3478
EpiCase
AF:
0.0000545
EpiControl
AF:
0.000119

ClinVar

Significance: Benign
Submissions summary: Benign:2
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not provided Benign:2
Benign, criteria provided, single submitternot providedBreakthrough Genomics, Breakthrough Genomics-- -
Benign, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpApr 04, 2018- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.48
CADD
Benign
0.74
DANN
Benign
0.46

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: rs61747186; hg19: chr3-42916238; COSMIC: COSV60226141; API