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GeneBe

2-120349372-G-A

Variant summary

Our verdict is Benign. Variant got -8 ACMG points: 0P and 8B. BP4_StrongBS2

The NM_002193.4(INHBB):​c.722G>A​(p.Arg241Gln) variant causes a missense change. The variant allele was found at a frequency of 0.0000198 in 1,613,990 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000059 ( 0 hom., cov: 33)
Exomes 𝑓: 0.000016 ( 0 hom. )

Consequence

INHBB
NM_002193.4 missense

Scores

19

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 4.03
Variant links:
Genes affected
INHBB (HGNC:6067): (inhibin subunit beta B) This gene encodes a member of the TGF-beta (transforming growth factor-beta) superfamily of proteins. The encoded preproprotein is proteolytically processed to generate a subunit of the dimeric activin and inhibin protein complexes. These complexes activate and inhibit, respectively, follicle stimulating hormone secretion from the pituitary gland. Polymorphisms near this gene are associated with pre-eclampsia in female human patients. [provided by RefSeq, Aug 2016]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -8 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.050909758).
BS2
High AC in GnomAd4 at 9 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
INHBBNM_002193.4 linkuse as main transcriptc.722G>A p.Arg241Gln missense_variant 2/2 ENST00000295228.4

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
INHBBENST00000295228.4 linkuse as main transcriptc.722G>A p.Arg241Gln missense_variant 2/21 NM_002193.4 P1

Frequencies

GnomAD3 genomes
AF:
0.0000657
AC:
10
AN:
152196
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.000169
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0000654
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.000386
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:
0.0000279
AC:
7
AN:
251186
Hom.:
0
AF XY:
0.0000295
AC XY:
4
AN XY:
135812
show subpopulations
Gnomad AFR exome
AF:
0.000123
Gnomad AMR exome
AF:
0.0000289
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.0000544
Gnomad SAS exome
AF:
0.0000653
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00000881
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000157
AC:
23
AN:
1461676
Hom.:
0
Cov.:
31
AF XY:
0.0000179
AC XY:
13
AN XY:
727148
show subpopulations
Gnomad4 AFR exome
AF:
0.000119
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.0000756
Gnomad4 SAS exome
AF:
0.0000580
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00000180
Gnomad4 OTH exome
AF:
0.000149
GnomAD4 genome
AF:
0.0000591
AC:
9
AN:
152314
Hom.:
0
Cov.:
33
AF XY:
0.0000671
AC XY:
5
AN XY:
74490
show subpopulations
Gnomad4 AFR
AF:
0.000168
Gnomad4 AMR
AF:
0.0000653
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.000193
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.0000434
Hom.:
0
Bravo
AF:
0.0000491
ExAC
AF:
0.0000330
AC:
4
Asia WGS
AF:
0.00260
AC:
9
AN:
3478

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 30, 2024The c.722G>A (p.R241Q) alteration is located in exon 2 (coding exon 2) of the INHBB gene. This alteration results from a G to A substitution at nucleotide position 722, causing the arginine (R) at amino acid position 241 to be replaced by a glutamine (Q). 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
0.072
BayesDel_addAF
Benign
-0.33
T
BayesDel_noAF
Benign
-0.48
CADD
Benign
22
DANN
Benign
0.93
DEOGEN2
Benign
0.26
T
Eigen
Benign
-0.42
Eigen_PC
Benign
-0.22
FATHMM_MKL
Benign
0.41
N
LIST_S2
Benign
0.84
T
M_CAP
Benign
0.011
T
MetaRNN
Benign
0.051
T
MetaSVM
Benign
-1.0
T
MutationAssessor
Benign
0.29
N
MutationTaster
Benign
0.84
N
PrimateAI
Benign
0.41
T
PROVEAN
Benign
-0.060
N
REVEL
Benign
0.059
Sift
Benign
1.0
T
Sift4G
Benign
0.78
T
Polyphen
0.038
B
Vest4
0.077
MutPred
0.41
Loss of helix (P = 0.1299);
MVP
0.53
MPC
0.73
ClinPred
0.055
T
GERP RS
3.0
Varity_R
0.050
gMVP
0.18

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: rs374594988; hg19: chr2-121106948; API