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chr19-49047867-C-A

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 0P and 0B.

The NM_033183.3(CGB8):​c.286G>T​(p.Val96Leu) variant causes a missense change involving the alteration of a non-conserved nucleotide. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.0000070 ( 0 hom., cov: 23)
Exomes 𝑓: 0.0000044 ( 0 hom. )
Failed GnomAD Quality Control

Consequence

CGB8
NM_033183.3 missense

Scores

1
9
7

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 2.10
Variant links:
Genes affected
CGB8 (HGNC:16453): (chorionic gonadotropin subunit beta 8) This gene is a member of the glycoprotein hormone beta chain family and encodes the beta 8 subunit of chorionic gonadotropin (CG). Glycoprotein hormones are heterodimers consisting of a common alpha subunit and an unique beta subunit which confers biological specificity. CG is produced by the trophoblastic cells of the placenta and stimulates the ovaries to synthesize the steroids that are essential for the maintenance of pregnancy. The beta subunit of CG is encoded by 6 genes which are arranged in tandem and inverted pairs on chromosome 19q13.3 and contiguous with the luteinizing hormone beta subunit gene. [provided by RefSeq, Jul 2008]

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 0 ACMG points.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
CGB8NM_033183.3 linkuse as main transcriptc.286G>T p.Val96Leu missense_variant 3/3 ENST00000448456.4

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
CGB8ENST00000448456.4 linkuse as main transcriptc.286G>T p.Val96Leu missense_variant 3/31 NM_033183.3 P1P0DN86-1

Frequencies

GnomAD3 genomes
AF:
0.00
AC:
1
AN:
143074
Hom.:
0
Cov.:
23
FAILED QC
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:
0.0000153
Gnomad OTH
AF:
0.00
GnomAD4 exome
Data not reliable, filtered out with message: AS_VQSR
AF:
0.00000440
AC:
3
AN:
681490
Hom.:
0
Cov.:
9
AF XY:
0.00000566
AC XY:
2
AN XY:
353228
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00000660
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Data not reliable, filtered out with message: AS_VQSR
AF:
0.00000699
AC:
1
AN:
143160
Hom.:
0
Cov.:
23
AF XY:
0.0000144
AC XY:
1
AN XY:
69332
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:
0.0000153
Gnomad4 OTH
AF:
0.00
Bravo
AF:
0.00000378

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not specified Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingAmbry GeneticsJan 16, 2024The c.286G>T (p.V96L) alteration is located in exon 3 (coding exon 3) of the CGB8 gene. This alteration results from a G to T substitution at nucleotide position 286, causing the valine (V) at amino acid position 96 to be replaced by a leucine (L). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Uncertain
0.41
BayesDel_addAF
Benign
-0.033
T
BayesDel_noAF
Benign
-0.29
CADD
Benign
23
DANN
Uncertain
0.99
Eigen
Benign
0.070
Eigen_PC
Benign
-0.086
FATHMM_MKL
Benign
0.74
D
LIST_S2
Uncertain
0.97
D
M_CAP
Uncertain
0.088
D
MetaRNN
Uncertain
0.58
D
MetaSVM
Benign
-0.51
T
MutationTaster
Benign
1.0
D;N;N
PrimateAI
Pathogenic
0.84
D
PROVEAN
Uncertain
-2.6
D
REVEL
Uncertain
0.32
Sift
Uncertain
0.011
D
Sift4G
Uncertain
0.015
D
Vest4
0.43
MutPred
0.69
Gain of catalytic residue at V96 (P = 0.1264);
MVP
0.44
MPC
0.019
ClinPred
0.98
D
GERP RS
1.8
gMVP
0.028

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: rs1354221277; hg19: chr19-49551124; API