rs199644308

Positions:

• chr2-120351009-T-C

Variant summary

Our verdict is Benign. Variant got -8 ACMG points: 0P and 8B. BP4_Strong BS2

The NM_002193.4(INHBB):​c.*1135T>C variant causes a 3 prime UTR change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00158 in 152,852 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency:
  • Genomes: 𝑓 0.0016 (1 hom., cov: 33)
  • Exomes 𝑓: 0.0019 (0 hom.)
• Consequence: INHBB NM_002193.4 3_prime_UTR
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -0.177

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]

ACMG classification

Verdict is Benign. Variant got -8 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.88).
• BS2: High AC in GnomAd4 at 240 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
INHBB	NM_002193.4	c.*1135T>C		3_prime_UTR_variant	2/2	ENST00000295228.4

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
INHBB	ENST00000295228.4	c.*1135T>C		3_prime_UTR_variant	2/2	1	NM_002193.4	P1

Frequencies

GnomAD3 genomes AF: 0.00158 AC: 240 AN: 152194 Hom.: 1 Cov.: 33

Gnomad AFR AF: 0.000386

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.00242

Gnomad ASJ AF: 0.00317

Gnomad EAS AF: 0.00

Gnomad SAS AF: 0.00124

Gnomad FIN AF: 0.000188

Gnomad MID AF: 0.00

Gnomad NFE AF: 0.00241

Gnomad OTH AF: 0.00191

GnomAD4 exome AF: 0.00185 AC: 1 AN: 540 Hom.: 0 Cov.: 0 AF XY: 0.00301 AC XY: 1 AN XY: 332

Gnomad4 AFR exome AF: 0.00

Gnomad4 SAS exome AF: 0.00

Gnomad4 FIN exome AF: 0.00224

Gnomad4 NFE exome AF: 0.00

Gnomad4 OTH exome AF: 0.00

GnomAD4 genome AF: 0.00158 AC: 240 AN: 152312 Hom.: 1 Cov.: 33 AF XY: 0.00129 AC XY: 96 AN XY: 74490

Gnomad4 AFR AF: 0.000385

Gnomad4 AMR AF: 0.00242

Gnomad4 ASJ AF: 0.00317

Gnomad4 EAS AF: 0.00

Gnomad4 SAS AF: 0.00124

Gnomad4 FIN AF: 0.000188

Gnomad4 NFE AF: 0.00241

Gnomad4 OTH AF: 0.00189

Alfa AF: 0.00159 Hom.: 1

Bravo AF: 0.00151

Asia WGS AF: 0.000289 AC: 1 AN: 3478

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.88
CADD	Benign	2.3
DANN	Benign	0.50

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

Other links and lift over

dbSNP: rs199644308; hg19: chr2-121108585;