5-150054417-G-A

Variant names:

• chr5-150054417-G-A
• rs2113774106
• NM_001288705.3:c.2668C>T
• CSF1R p.Gln890*

Variant summary

Our verdict is Pathogenic. The variant received 10 ACMG points: 10P and 0B. PVS1 PM2

The NM_001288705.3(CSF1R):​c.2668C>T​(p.Gln890*) variant causes a stop gained change. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a pathogenic outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Variant results in nonsense mediated mRNA decay.

• Frequency:
  • Genomes: not found (cov: 31)
  • Exomes 𝑓: 0.0 (0 hom.)
  • Failed GnomAD Quality Control
• Consequence: CSF1R NM_001288705.3 stop_gained
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 3.91
• Publications: 0 publications found

Genes affected

CSF1R (HGNC:2433): (colony stimulating factor 1 receptor) The protein encoded by this gene is the receptor for colony stimulating factor 1, a cytokine which controls the production, differentiation, and function of macrophages. This receptor mediates most if not all of the biological effects of this cytokine. Ligand binding activates the receptor kinase through a process of oligomerization and transphosphorylation. The encoded protein is a tyrosine kinase transmembrane receptor and member of the CSF1/PDGF receptor family of tyrosine-protein kinases. Mutations in this gene have been associated with a predisposition to myeloid malignancy. The first intron of this gene contains a transcriptionally inactive ribosomal protein L7 processed pseudogene oriented in the opposite direction. Alternative splicing results in multiple transcript variants. Expression of a splice variant from an LTR promoter has been found in Hodgkin lymphoma (HL), HL cell lines and anaplastic large cell lymphoma. [provided by RefSeq, Mar 2017]

CSF1R Gene-Disease associations (from GenCC):

• hereditary diffuse leukoencephalopathy with axonal spheroids and pigmented glia

  Inheritance: AD Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: Orphanet, Genomics England PanelApp, Ambry Genetics
• brain abnormalities, neurodegeneration, and dysosteosclerosis

  Inheritance: AR Classification: DEFINITIVE, STRONG Submitted by: Labcorp Genetics (formerly Invitae), G2P
• leukoencephalopathy, diffuse hereditary, with spheroids 1

  Inheritance: AD Classification: STRONG Submitted by: Labcorp Genetics (formerly Invitae)
• early-onset calcifying leukoencephalopathy-skeletal dysplasia

  Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet

ACMG classification

Our verdict: Pathogenic. The variant received 10 ACMG points.

• PVS1: Loss of function variant, product undergoes nonsense mediated mRNA decay. LoF is a known mechanism of disease.
• PM2: Very rare variant in population databases, with high coverage

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001288705.3. 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
	CSF1R	NM_001288705.3	MANE Select	c.2668C>T	p.Gln890*	stop_gained	Exon 20 of 21	NP_001275634.1	P07333-1
	CSF1R	NM_001349736.2		c.2668C>T	p.Gln890*	stop_gained	Exon 22 of 23	NP_001336665.1	P07333-1
	CSF1R	NM_001375320.1		c.2668C>T	p.Gln890*	stop_gained	Exon 22 of 23	NP_001362249.1	P07333-1

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	CSF1R	ENST00000675795.1	MANE Select	c.2668C>T	p.Gln890*	stop_gained	Exon 20 of 21	ENSP00000501699.1	P07333-1
	CSF1R	ENST00000286301.7	TSL:1	c.2668C>T	p.Gln890*	stop_gained	Exon 21 of 22	ENSP00000286301.3	P07333-1
	CSF1R	ENST00000504875.5	TSL:1	n.*489C>T		non_coding_transcript_exon	Exon 19 of 20	ENSP00000422212.1	E9PEK4

Frequencies

GnomAD3 genomes Cov.: 31

GnomAD4 exome Data not reliable, filtered out with message: AC0 AF: 0.00 AC: 0 AN: 1460452 Hom.: 0 Cov.: 32 AF XY: 0.00 AC XY: 0 AN XY: 726500

African (AFR) AF: 0.00 AC: 0 AN: 33464

American (AMR) AF: 0.00 AC: 0 AN: 44576

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26004

East Asian (EAS) AF: 0.00 AC: 0 AN: 39694

South Asian (SAS) AF: 0.00 AC: 0 AN: 86012

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53376

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5696

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 1111322

Other (OTH) AF: 0.00 AC: 0 AN: 60308

GnomAD4 genome Cov.: 31

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
BayesDel_addAF	Pathogenic	0.63	D
BayesDel_noAF	Pathogenic	0.53
CADD	Pathogenic	50
DANN	Uncertain	1.0
Eigen	Pathogenic	0.81
Eigen_PC	Pathogenic	0.69
FATHMM_MKL	Uncertain	0.95	D
PhyloP100		3.9
Mutation Taster		=7/193	disease causing (fs/PTC)

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.050		Details are displayed if max score is > 0.2

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

MaxEntScan Visualizer can be used to analyze the impact of this mutation on the neighboring sequence.

Other links and lift over

dbSNP: rs2113774106; hg19: chr5-149433980;