chr2-120346312-C-T

Variant summary

Our verdict is Likely benign. Variant got -6 ACMG points: 0P and 6B. BP4_ModerateBS2

The NM_002193.4(INHBB):​c.124C>T​(p.Pro42Ser) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000442 in 1,381,008 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. 13/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.00025 ( 0 hom., cov: 33)
Exomes 𝑓: 0.000019 ( 1 hom. )

Consequence

INHBB
NM_002193.4 missense

Scores

2
1
16

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.957
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 Likely_benign. Variant got -6 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.22554097).
BS2
High AC in GnomAd4 at 38 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
INHBBNM_002193.4 linkuse as main transcriptc.124C>T p.Pro42Ser missense_variant 1/2 ENST00000295228.4

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
INHBBENST00000295228.4 linkuse as main transcriptc.124C>T p.Pro42Ser missense_variant 1/21 NM_002193.4 P1

Frequencies

GnomAD3 genomes
AF:
0.000252
AC:
38
AN:
150816
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.000872
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0000658
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:
0.0000149
Gnomad OTH
AF:
0.00
GnomAD4 exome
AF:
0.0000187
AC:
23
AN:
1230100
Hom.:
1
Cov.:
31
AF XY:
0.0000184
AC XY:
11
AN XY:
597448
show subpopulations
Gnomad4 AFR exome
AF:
0.000462
Gnomad4 AMR exome
AF:
0.000162
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000183
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00000794
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.000252
AC:
38
AN:
150908
Hom.:
0
Cov.:
33
AF XY:
0.000258
AC XY:
19
AN XY:
73644
show subpopulations
Gnomad4 AFR
AF:
0.000869
Gnomad4 AMR
AF:
0.0000657
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000149
Gnomad4 OTH
AF:
0.00
Bravo
AF:
0.000189

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 GeneticsJul 25, 2023The c.124C>T (p.P42S) alteration is located in exon 1 (coding exon 1) of the INHBB gene. This alteration results from a C to T substitution at nucleotide position 124, causing the proline (P) at amino acid position 42 to be replaced by a serine (S). 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
0.070
BayesDel_addAF
Benign
-0.30
T
BayesDel_noAF
Benign
-0.26
CADD
Benign
17
DANN
Benign
0.93
DEOGEN2
Benign
0.26
T
Eigen
Benign
-0.96
Eigen_PC
Benign
-0.94
FATHMM_MKL
Benign
0.13
N
LIST_S2
Benign
0.53
T
M_CAP
Pathogenic
0.94
D
MetaRNN
Benign
0.23
T
MetaSVM
Benign
-0.75
T
MutationAssessor
Benign
0.0
N
MutationTaster
Benign
1.0
N
PrimateAI
Pathogenic
0.86
D
PROVEAN
Benign
0.21
N
REVEL
Uncertain
0.30
Sift
Benign
0.74
T
Sift4G
Benign
0.81
T
Polyphen
0.41
B
Vest4
0.30
MutPred
0.35
Gain of phosphorylation at P42 (P = 0.0021);
MVP
0.80
MPC
1.7
ClinPred
0.074
T
GERP RS
1.3
Varity_R
0.063
gMVP
0.22

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: rs923684531; hg19: chr2-121103888; API