chrX-1294349-A-G

Variant names:

• chrX-1294349-A-G
• rs768648388
• NM_172245.4:c.668A>G

Variant summary

Our verdict is Likely benign. The variant received -3 ACMG points: 1P and 4B. PP3 BS2

The NM_172245.4(CSF2RA):​c.668A>G​(p.Asn223Ser) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000151 in 1,461,470 control chromosomes in the GnomAD database, with no homozygous occurrence. There are 14 hemizygotes in GnomAD. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 0.000015 (0 hom. 14 hem.)
• Consequence: CSF2RA NM_172245.4 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 2.13
• Publications: 0 publications found

Genes affected

CSF2RA (HGNC:2435): (colony stimulating factor 2 receptor subunit alpha) The protein encoded by this gene is the alpha subunit of the heterodimeric receptor for colony stimulating factor 2, a cytokine which controls the production, differentiation, and function of granulocytes and macrophages. The encoded protein is a member of the cytokine family of receptors. This gene is found in the pseudoautosomal region (PAR) of the X and Y chromosomes. Multiple transcript variants encoding different isoforms have been found for this gene, with some of the isoforms being membrane-bound and others being soluble. [provided by RefSeq, Jul 2008]

CSF2RA Gene-Disease associations (from GenCC):

• surfactant metabolism dysfunction, pulmonary, 4

  Inheritance: AR Classification: STRONG Submitted by: Labcorp Genetics (formerly Invitae)
• hereditary pulmonary alveolar proteinosis

  Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet

ACMG classification

Our verdict: Likely_benign. The variant received -3 ACMG points.

• PP3: Splicing predictors support a deleterious effect. Scorers claiming Pathogenic: max_spliceai. No scorers claiming Uncertain. No scorers claiming Benign.
• BS2: High Hemizygotes in GnomAdExome4 at 14 AR gene

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_172245.4. 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
	CSF2RA	NM_172245.4	MANE Select	c.668A>G	p.Asn223Ser	missense	Exon 8 of 13	NP_758448.1
	CSF2RA	NM_001161530.2		c.668A>G	p.Asn223Ser	missense	Exon 8 of 14	NP_001155002.1
	CSF2RA	NM_001379153.1		c.668A>G	p.Asn223Ser	missense	Exon 7 of 13	NP_001366082.1

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	CSF2RA	ENST00000381529.9	TSL:1 MANE Select	c.668A>G	p.Asn223Ser	missense	Exon 8 of 13	ENSP00000370940.3
	CSF2RA	ENST00000381509.8	TSL:1	c.668A>G	p.Asn223Ser	missense	Exon 8 of 13	ENSP00000370920.3
	CSF2RA	ENST00000381524.8	TSL:1	c.668A>G	p.Asn223Ser	missense	Exon 8 of 13	ENSP00000370935.3

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD2 exomes AF: 0.0000358 AC: 9 AN: 251178 AF XY: 0.0000221

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: 0.0000793

Gnomad OTH exome AF: 0.00

GnomAD4 exome AF: 0.0000151 AC: 22 AN: 1461470 Hom.: 0 Cov.: 32 AF XY: 0.0000193 AC XY: 14 AN XY: 727056

African (AFR) AF: 0.00 AC: 0 AN: 33468

American (AMR) AF: 0.00 AC: 0 AN: 44716

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26132

East Asian (EAS) AF: 0.00 AC: 0 AN: 39700

South Asian (SAS) AF: 0.00 AC: 0 AN: 86236

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53414

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5604

European-Non Finnish (NFE) AF: 0.0000189 AC: 21 AN: 1111838

Other (OTH) AF: 0.0000166 AC: 1 AN: 60362

GnomAD4 genome Cov.: 32

Bravo AF: 0.00000378

ExAC AF: 0.0000576 AC: 7

EpiCase AF: 0.000109

EpiControl AF: 0.000119

ClinVar

ClinVar submissions as Germline

Significance: Uncertain significance

Revision: criteria provided, single submitter

Pathogenic	VUS	Benign	Condition
-	1	-	Surfactant metabolism dysfunction, pulmonary, 4 (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
BayesDel_addAF	Benign	-0.23	T
BayesDel_noAF	Benign	-0.38
CADD	Benign	23
DANN	Uncertain	0.98
DEOGEN2	Uncertain	0.44	T
FATHMM_MKL	Benign	0.061	N
LIST_S2	Benign	0.85	D
M_CAP	Benign	0.034	D
MetaRNN	Benign	0.36	T
MetaSVM	Uncertain	-0.28	T
MutationAssessor	Uncertain	2.7	M
PhyloP100		2.1
PrimateAI	Uncertain	0.55	T
PROVEAN	Uncertain	-3.7	D
REVEL	Benign	0.25
Sift	Uncertain	0.011	D
Sift4G	Pathogenic	0.0	D
Polyphen		1.0	D
Vest4		0.43
MutPred		0.61		Gain of glycosylation at N223 (P = 0.0671)
MVP		0.57
MPC		0.50
ClinPred		0.52	D
GERP RS		1.5
Varity_R		0.42
Mutation Taster		=83/17	polymorphism

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.57		Details are displayed if max score is > 0.2
DS_AG_spliceai		0.57		Position offset: 1

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Other links and lift over

dbSNP: rs768648388; hg19: chrX-1413242;