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GeneBe

19-49047875-G-A

Variant summary

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

The NM_033183.3(CGB8):​c.278C>T​(p.Pro93Leu) 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 0.00029 ( 0 hom., cov: 23)
Exomes 𝑓: 0.000031 ( 0 hom. )
Failed GnomAD Quality Control

Consequence

CGB8
NM_033183.3 missense

Scores

1
5
11

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.778
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]

Genome browser will be placed here

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.278C>T p.Pro93Leu missense_variant 3/3 ENST00000448456.4

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
CGB8ENST00000448456.4 linkuse as main transcriptc.278C>T p.Pro93Leu missense_variant 3/31 NM_033183.3 P1P0DN86-1

Frequencies

GnomAD3 genomes
AF:
0.00
AC:
40
AN:
142194
Hom.:
0
Cov.:
23
FAILED QC
Gnomad AFR
AF:
0.00101
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0000685
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.000422
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.000112
AC:
6
AN:
53656
Hom.:
0
AF XY:
0.0000370
AC XY:
1
AN XY:
27054
show subpopulations
Gnomad AFR exome
AF:
0.000193
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.000637
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
Data not reliable, filtered out with message: AS_VQSR
AF:
0.0000309
AC:
22
AN:
711272
Hom.:
0
Cov.:
9
AF XY:
0.0000272
AC XY:
10
AN XY:
368122
show subpopulations
Gnomad4 AFR exome
AF:
0.000358
Gnomad4 AMR exome
AF:
0.0000638
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.000240
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00000833
Gnomad4 OTH exome
AF:
0.0000282
GnomAD4 genome
Data not reliable, filtered out with message: AS_VQSR
AF:
0.000288
AC:
41
AN:
142280
Hom.:
0
Cov.:
23
AF XY:
0.000305
AC XY:
21
AN XY:
68938
show subpopulations
Gnomad4 AFR
AF:
0.00103
Gnomad4 AMR
AF:
0.0000684
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.000424
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.00

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 10, 2022The c.278C>T (p.P93L) alteration is located in exon 3 (coding exon 3) of the CGB8 gene. This alteration results from a C to T substitution at nucleotide position 278, causing the proline (P) at amino acid position 93 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
Benign
0.12
BayesDel_addAF
Benign
-0.21
T
BayesDel_noAF
Benign
-0.17
CADD
Benign
14
DANN
Benign
0.97
Eigen
Benign
-0.18
Eigen_PC
Benign
-0.27
FATHMM_MKL
Benign
0.43
N
LIST_S2
Benign
0.85
D
M_CAP
Uncertain
0.14
D
MetaRNN
Uncertain
0.63
D
MetaSVM
Uncertain
0.21
D
MutationTaster
Benign
1.0
D;D;D
PrimateAI
Uncertain
0.76
T
PROVEAN
Pathogenic
-5.3
D
REVEL
Uncertain
0.59
Sift
Benign
0.17
T
Sift4G
Benign
0.11
T
Vest4
0.12
MutPred
0.81
Gain of catalytic residue at P93 (P = 0.1108);
MVP
0.80
MPC
0.0067
ClinPred
0.099
T
GERP RS
1.8
gMVP
0.031

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: rs879871530; hg19: chr19-49551132; API