Genetic Variant INHBA:p.Gly277Cys (chr7-41690102-C-A) – ACMG Classification: Uncertain_significance (1 pts)

Variant summary

Our verdict is Uncertain significance. The variant received 1 ACMG points: 2P and 1B. PM2BP4

The NM_002192.4(INHBA):c.829G>T(p.Gly277Cys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000684 in 1,461,646 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/22 in silico tools predict a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. G277S) has been classified as Uncertain significance.

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 6.8e-7 ( 0 hom. )

Consequence

INHBA
NM_002192.4 missense

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 0.186

Publications

0 publications found

Variant links:

COSMIC-nc: COSV54226786

Genes affected

INHBA (HGNC:6066): (inhibin subunit beta A) 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. The encoded protein also plays a role in eye, tooth and testis development. Elevated expression of this gene may be associated with cancer cachexia in human patients. [provided by RefSeq, Aug 2016]

INHBA links:

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ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 1 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.2672627).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_002192.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	INHBA	NM_002192.4	MANE Select	c.829G>T	p.Gly277Cys	missense	Exon 3 of 3	NP_002183.1	A4D1W7

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
INHBA	ENST00000242208.5	TSL:1 MANE Select	c.829G>T	p.Gly277Cys	missense	Exon 3 of 3	ENSP00000242208.4	P08476
INHBA	ENST00000442711.1	TSL:1	c.829G>T	p.Gly277Cys	missense	Exon 2 of 2	ENSP00000397197.1	P08476
INHBA	ENST00000464515.1	TSL:1	n.1817G>T		non_coding_transcript_exon	Exon 2 of 2

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

AF:

6.84e-7

AC:

AN:

1461646

Hom.:

Cov.:

AF XY:

0.00000138

AC XY:

AN XY:

727138

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33480

American (AMR)

AF:

0.00

AC:

AN:

44724

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26136

East Asian (EAS)

AF:

0.00

AC:

AN:

39700

South Asian (SAS)

AF:

0.00

AC:

AN:

86256

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53196

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5768

European-Non Finnish (NFE)

AF:

8.99e-7

AC:

AN:

1111994

Other (OTH)

AF:

0.00

AC:

AN:

60392

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.425

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

GnomAD4 genome

Cov.:

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.17

BayesDel_addAF

Benign

-0.0046

BayesDel_noAF

Benign

-0.24

CADD

Benign

(source)

DANN

Uncertain

0.99

DEOGEN2

Uncertain

0.61

Eigen

Benign

-0.096

Eigen_PC

Benign

-0.16

FATHMM_MKL

Benign

0.13

LIST_S2

Benign

0.50

M_CAP

Uncertain

0.086

MetaRNN

Benign

0.27

MetaSVM

Benign

-0.50

MutationAssessor

Benign

1.1

PhyloP100

0.19

PrimateAI

Benign

0.46

PROVEAN

Benign

0.040

REVEL

Benign

0.28

Sift

Uncertain

0.012

Sift4G

Uncertain

0.0070

Polyphen

0.91

Vest4

0.23

MutPred

0.29

Gain of ubiquitination at K272 (P = 0.1375)

MVP

0.68

MPC

1.1

ClinPred

0.37

GERP RS

5.6

Varity_R

0.13

gMVP

0.79

Mutation Taster

=68/32

polymorphism

(source)

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

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over