X-1282746-C-T

Variant names:

• chrX-1282746-C-T
• rs760312267
• NM_172245.4:c.43C>T

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2 BP4_Moderate

The NM_172245.4(CSF2RA):​c.43C>T​(p.His15Tyr) 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 1,461,606 control chromosomes in the GnomAD database, with no homozygous occurrence. There are no hemizygote samples in GnomAD. In-silico tool predicts a benign outcome for this variant. 13/18 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency:
  • Genomes: not found (cov: 31)
  • Exomes 𝑓: 6.8e-7 (0 hom. 0 hem.)
• Consequence: CSF2RA NM_172245.4 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: -0.189

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]

ACMG classification

Verdict is Uncertain_significance. Variant got 0 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.12956592).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
CSF2RA	NM_172245.4	c.43C>T	p.His15Tyr	missense_variant	Exon 3 of 13	ENST00000381529.9	NP_758448.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
CSF2RA	ENST00000381529.9	c.43C>T	p.His15Tyr	missense_variant	Exon 3 of 13	1	NM_172245.4	ENSP00000370940.3

Frequencies

GnomAD3 genomes Cov.: 31

GnomAD3 exomes AF: 0.00000398 AC: 1 AN: 251180 Hom.: 0 AF XY: 0.00 AC XY: 0 AN XY: 135744

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 SAS exome AF: 0.00

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.00000881

Gnomad OTH exome AF: 0.00

GnomAD4 exome AF: 6.84e-7 AC: 1 AN: 1461606 Hom.: 0 Cov.: 30 AF XY: 0.00 AC XY: 0 AN XY: 727124

Gnomad4 AFR exome AF: 0.00

Gnomad4 AMR exome AF: 0.00

Gnomad4 ASJ exome AF: 0.00

Gnomad4 EAS exome AF: 0.00

Gnomad4 SAS exome AF: 0.00

Gnomad4 FIN exome AF: 0.00

Gnomad4 NFE exome AF: 8.99e-7

Gnomad4 OTH exome AF: 0.00

GnomAD4 genome Cov.: 31

Bravo AF: 0.00000378

ExAC AF: 0.00000824 AC: 1

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

Surfactant metabolism dysfunction, pulmonary, 4 Uncertain:1

Mar 05, 2021

Labcorp Genetics (formerly Invitae), Labcorp

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

This variant is present in population databases (rs760312267, ExAC 0.001%). This variant has not been reported in the literature in individuals with CSF2RA-related conditions. Algorithms developed to predict the effect of missense changes on protein structure and function (SIFT, PolyPhen-2, Align-GVGD) all suggest that this variant is likely to be tolerated, but these predictions have not been confirmed by published functional studies and their clinical significance is uncertain. In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. This sequence change replaces histidine with tyrosine at codon 15 of the CSF2RA protein (p.His15Tyr). The histidine residue is weakly conserved and there is a moderate physicochemical difference between histidine and tyrosine. -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_addAF	Benign	-0.11	T
BayesDel_noAF	Benign	-0.39
CADD	Benign	5.8
DANN	Benign	0.43
DEOGEN2	Benign	0.21	T;.;T;T;T;.;T;.;.;.
FATHMM_MKL	Benign	0.0016	N
LIST_S2	Benign	0.50	.;T;.;T;T;T;T;T;T;T
M_CAP	Benign	0.010	T
MetaRNN	Benign	0.13	T;T;T;T;T;T;T;T;T;T
MetaSVM	Uncertain	-0.17	T
MutationAssessor	Benign	0.34	N;N;N;.;N;N;.;N;N;N
PrimateAI	Benign	0.40	T
PROVEAN	Benign	-0.63	N;N;N;N;N;N;.;N;N;N
REVEL	Benign	0.20
Sift	Benign	0.16	T;T;T;T;T;T;.;T;T;T
Sift4G	Benign	0.16	T;T;T;T;T;T;T;T;T;T
Polyphen		0.27	B;.;B;.;B;B;.;P;P;P
Vest4		0.25
MutPred		0.47		Gain of catalytic residue at H15 (P = 0.0366);Gain of catalytic residue at H15 (P = 0.0366);Gain of catalytic residue at H15 (P = 0.0366);Gain of catalytic residue at H15 (P = 0.0366);Gain of catalytic residue at H15 (P = 0.0366);Gain of catalytic residue at H15 (P = 0.0366);Gain of catalytic residue at H15 (P = 0.0366);Gain of catalytic residue at H15 (P = 0.0366);Gain of catalytic residue at H15 (P = 0.0366);Gain of catalytic residue at H15 (P = 0.0366);
MVP		0.61
MPC		0.16
ClinPred		0.093	T
GERP RS		-1.4
Varity_R		0.051

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: rs760312267; hg19: chrX-1401639;