Variant chr9-21077642-G-A details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Benign. Variant got -21 ACMG points: 0P and 21B. BP4_StrongBP6_Very_StrongBP7BS1BS2

The NM_002176.4(IFNB1):c.228C>T(p.Ala76Ala) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00137 in 1,613,904 control chromosomes in the GnomAD database, including 25 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★).

Frequency

Genomes: 𝑓 0.0073 ( 11 hom., cov: 32)

Exomes 𝑓: 0.00075 ( 14 hom. )

Consequence

IFNB1
NM_002176.4 synonymous

Scores

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:2

Conservation

PhyloP100: -2.28

Variant links:

Genes affected

IFNB1 (HGNC:5434): (interferon beta 1) This gene encodes a cytokine that belongs to the interferon family of signaling proteins, which are released as part of the innate immune response to pathogens. The protein encoded by this gene belongs to the type I class of interferons, which are important for defense against viral infections. In addition, type I interferons are involved in cell differentiation and anti-tumor defenses. Following secretion in response to a pathogen, type I interferons bind a homologous receptor complex and induce transcription of genes such as those encoding inflammatory cytokines and chemokines. Overactivation of type I interferon secretion is linked to autoimmune diseases. Mice deficient for this gene display several phenotypes including defects in B cell maturation and increased susceptibility to viral infection. [provided by RefSeq, Sep 2015]

IFNB1 links:

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -21 ACMG points.

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.88).

BP6

Variant 9-21077642-G-A is Benign according to our data. Variant chr9-21077642-G-A is described in ClinVar as [Benign]. Clinvar id is 717236.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

BP7

Synonymous conserved (PhyloP=-2.28 with no splicing effect.

BS1

Variant frequency is greater than expected in population afr. gnomad4 allele frequency = 0.00733 (1116/152250) while in subpopulation AFR AF= 0.0258 (1072/41560). AF 95% confidence interval is 0.0245. There are 11 homozygotes in gnomad4. There are 533 alleles in male gnomad4 subpopulation. Median coverage is 32. This position pass quality control queck.

BS2

High Homozygotes in GnomAd4 at 11 gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
IFNB1	NM_002176.4 linkuse as main transcript	c.228C>T	p.Ala76Ala	synonymous_variant	1/1	ENST00000380232.4	NP_002167.1	P01574A0A7R8GV38

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
IFNB1	ENST00000380232.4 linkuse as main transcript	c.228C>T	p.Ala76Ala	synonymous_variant	1/1	6	NM_002176.4	ENSP00000369581.2		P01574

Frequencies

GnomAD3 genomes

AF:

0.00731

AC:

1112

AN:

152132

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0258

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00197

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:

0.0000735

Gnomad OTH

AF:

0.00430

GnomAD3 exomes

AF:

0.00180

AC:

451

AN:

250678

Hom.:

AF XY:

0.00138

AC XY:

187

AN XY:

135434

show subpopulations

Gnomad AFR exome

AF:

0.0258

Gnomad AMR exome

AF:

0.000753

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.0000654

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000265

Gnomad OTH exome

AF:

0.000164

GnomAD4 exome

AF:

0.000746

AC:

1090

AN:

1461654

Hom.:

Cov.:

AF XY:

0.000624

AC XY:

454

AN XY:

727128

show subpopulations

Gnomad4 AFR exome

AF:

0.0277

Gnomad4 AMR exome

AF:

0.00112

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.0000504

Gnomad4 SAS exome

AF:

0.0000812

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000207

Gnomad4 OTH exome

AF:

0.00129

GnomAD4 genome

AF:

0.00733

AC:

1116

AN:

152250

Hom.:

Cov.:

AF XY:

0.00716

AC XY:

533

AN XY:

74416

show subpopulations

Gnomad4 AFR

AF:

0.0258

Gnomad4 AMR

AF:

0.00196

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000735

Gnomad4 OTH

AF:

0.00426

Alfa

AF:

0.00126

Hom.:

Bravo

AF:

0.00807

Asia WGS

AF:

0.00115

AC:

AN:

3478

EpiCase

AF:

0.00

EpiControl

AF:

0.0000593

ClinVar

Significance: Benign

Submissions summary: Benign:2

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

not provided

Benign:2

Benign, criteria provided, single submitter	not provided	Breakthrough Genomics, Breakthrough Genomics	-	- -
Benign, criteria provided, single submitter	clinical testing	Labcorp Genetics (formerly Invitae), Labcorp	Dec 31, 2019	- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.88

CADD

Benign

0.14

DANN

Benign

0.28

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.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over