Genetic Variant CSF2RB:c.76+14C>T (chr22-36922297-C-T) – ACMG Classification: Likely_benign (-4 pts)

Variant summary

Our verdict is Likely benign. The variant received -4 ACMG points: 2P and 6B. PM2BP4_StrongBP6_Moderate

The NM_000395.3(CSF2RB):c.76+14C>T variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000425 in 1,412,614 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★).

Frequency

Genomes: not found (cov: 33)

Exomes 𝑓: 0.0000042 ( 0 hom. )

Consequence

CSF2RB
NM_000395.3 intron

Scores

Clinical Significance

Likely benign criteria provided, single submitter B:1

Conservation

PhyloP100: 0.326

Variant links:

Genes affected

CSF2RB (HGNC:2436): (colony stimulating factor 2 receptor subunit beta) The protein encoded by this gene is the common beta chain of the high affinity receptor for IL-3, IL-5 and CSF. Defects in this gene have been reported to be associated with protein alveolar proteinosis (PAP). [provided by RefSeq, Jul 2008]

CSF2RB links:

ENSG00000304449 (HGNC:):

ENSG00000304449 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -4 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.83).

BP6

Variant 22-36922297-C-T is Benign according to our data. Variant chr22-36922297-C-T is described in ClinVar as [Likely_benign]. Clinvar id is 1987817.Status of the report is criteria_provided_single_submitter, 1 stars.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
CSF2RB	NM_000395.3 link	c.76+14C>T		intron_variant	Intron 2 of 13	ENST00000403662.8	NP_000386.1	P32927-1Q6NSJ8

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
CSF2RB	ENST00000403662.8 link	c.76+14C>T		intron_variant	Intron 2 of 13	5	NM_000395.3	ENSP00000384053.3		P32927-1

Frequencies

GnomAD3 genomes

Cov.:

GnomAD2 exomes

AF:

0.00000586

AC:

AN:

170794

AF XY:

0.0000110

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000147

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000425

AC:

AN:

1412614

Hom.:

Cov.:

AF XY:

0.00000430

AC XY:

AN XY:

698300

show subpopulations

⚠️ The allele balance in gnomAD version 4 Exomes is significantly skewed from the expected value of 0.5.

African (AFR)

AF:

0.00

AC:

AN:

32446

American (AMR)

AF:

0.00

AC:

AN:

37808

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

25248

East Asian (EAS)

AF:

0.00

AC:

AN:

37140

South Asian (SAS)

AF:

0.00

AC:

AN:

80288

European-Finnish (FIN)

AF:

0.00

AC:

AN:

49964

Middle Eastern (MID)

AF:

0.00

AC:

AN:

4666

European-Non Finnish (NFE)

AF:

0.00000460

AC:

AN:

1086580

Other (OTH)

AF:

0.0000171

AC:

AN:

58474

⚠️ The allele balance in gnomAD4 Exomes is highly skewed from 0.5 (p-value = 0.000545), which strongly suggests a high chance of mosaicism in these individuals.

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.400

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

Cov.:

Alfa

AF:

0.00

Hom.:

Bravo

AF:

0.0000113

ClinVar

Significance: Likely benign

Submissions summary: Benign:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not provided

Benign:1

Aug 06, 2022

Labcorp Genetics (formerly Invitae), Labcorp

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.83

CADD

Benign

4.7

(source)

DANN

Benign

0.55

PhyloP100

0.33

PromoterAI

0.0096

Neutral

(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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22-36922297-C-T

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over