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19-49047920-T-G

Variant summary

Our verdict is Likely benign. Variant got -6 ACMG points: 0P and 6B. BP4_StrongBP6_Moderate

The NM_033183.3(CGB8):ā€‹c.233A>Cā€‹(p.Asn78Thr) variant causes a missense change involving the alteration of a non-conserved nucleotide. In-silico tool predicts a benign outcome for this variant. 14/19 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (ā˜…).

Frequency

Genomes: š‘“ 0.00015 ( 0 hom., cov: 24)
Exomes š‘“: 0.00019 ( 0 hom. )
Failed GnomAD Quality Control

Consequence

CGB8
NM_033183.3 missense

Scores

1
16

Clinical Significance

Likely benign criteria provided, single submitter B:1

Conservation

PhyloP100: 3.30
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 Likely_benign. Variant got -6 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.061267257).
BP6
Variant 19-49047920-T-G is Benign according to our data. Variant chr19-49047920-T-G is described in ClinVar as [Likely_benign]. Clinvar id is 2381382.Status of the report is criteria_provided_single_submitter, 1 stars.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
CGB8NM_033183.3 linkuse as main transcriptc.233A>C p.Asn78Thr missense_variant 3/3 ENST00000448456.4

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
CGB8ENST00000448456.4 linkuse as main transcriptc.233A>C p.Asn78Thr missense_variant 3/31 NM_033183.3 P1P0DN86-1

Frequencies

GnomAD3 genomes
AF:
0.00
AC:
22
AN:
142456
Hom.:
0
Cov.:
24
FAILED QC
Gnomad AFR
AF:
0.000165
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000137
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.000210
Gnomad SAS
AF:
0.00115
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.000122
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.000112
AC:
6
AN:
53804
Hom.:
0
AF XY:
0.000111
AC XY:
3
AN XY:
27128
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.000191
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.000330
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000993
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
Data not reliable, filtered out with message: AS_VQSR
AF:
0.000191
AC:
207
AN:
1085694
Hom.:
0
Cov.:
14
AF XY:
0.000240
AC XY:
132
AN XY:
549230
show subpopulations
Gnomad4 AFR exome
AF:
0.000199
Gnomad4 AMR exome
AF:
0.000194
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.000787
Gnomad4 FIN exome
AF:
0.0000281
Gnomad4 NFE exome
AF:
0.000160
Gnomad4 OTH exome
AF:
0.000189
GnomAD4 genome
Data not reliable, filtered out with message: AS_VQSR
AF:
0.000154
AC:
22
AN:
142564
Hom.:
0
Cov.:
24
AF XY:
0.000173
AC XY:
12
AN XY:
69272
show subpopulations
Gnomad4 AFR
AF:
0.000165
Gnomad4 AMR
AF:
0.000136
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.000210
Gnomad4 SAS
AF:
0.00115
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.000122
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.000123
Hom.:
0

ClinVar

Significance: Likely benign
Submissions summary: Benign:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not specified Benign:1
Likely benign, criteria provided, single submitterclinical testingAmbry GeneticsMay 25, 2022This alteration is classified as likely benign based on a combination of the following: seen in unaffected individuals, population frequency, intact protein function, lack of segregation with disease, co-occurrence, RNA analysis, in silico models, amino acid conservation, lack of disease association in case-control studies, and/or the mechanism of disease or impacted region is inconsistent with a known cause of pathogenicity. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.15
BayesDel_addAF
Benign
-0.25
T
BayesDel_noAF
Benign
-0.30
CADD
Benign
5.4
DANN
Benign
0.65
Eigen
Benign
-0.73
Eigen_PC
Benign
-0.71
FATHMM_MKL
Benign
0.050
N
LIST_S2
Benign
0.54
T
M_CAP
Benign
0.065
D
MetaRNN
Benign
0.061
T
MetaSVM
Benign
-0.77
T
MutationTaster
Benign
1.0
D;N;N
PrimateAI
Uncertain
0.77
T
PROVEAN
Benign
2.9
N
REVEL
Benign
0.22
Sift
Benign
1.0
T
Sift4G
Benign
1.0
T
Vest4
0.13
MVP
0.40
MPC
0.0056
ClinPred
0.026
T
GERP RS
0.69
gMVP
0.021

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.010
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: rs1414372486; hg19: chr19-49551177; API