NM_000121.4:c.*35G>T

Variant names:

• chr19-11377949-C-A
• rs200997864
• NM_000121.4:c.*35G>T

Variant summary

Our verdict is Likely benign. The variant received -2 ACMG points: 2P and 4B. PM2 BP4_Strong

The NM_000121.4(EPOR):​c.*35G>T variant causes a 3 prime UTR change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000137 in 1,460,786 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 0.0000014 (0 hom.)
• Consequence: EPOR NM_000121.4 3_prime_UTR
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 0.555
• Publications: 0 publications found

Genes affected

EPOR (HGNC:3416): (erythropoietin receptor) This gene encodes the erythropoietin receptor which is a member of the cytokine receptor family. Upon erythropoietin binding, this receptor activates Jak2 tyrosine kinase which activates different intracellular pathways including: Ras/MAP kinase, phosphatidylinositol 3-kinase and STAT transcription factors. The stimulated erythropoietin receptor appears to have a role in erythroid cell survival. Defects in the erythropoietin receptor may produce erythroleukemia and familial erythrocytosis. Dysregulation of this gene may affect the growth of certain tumors. Alternate splicing results in multiple transcript variants.[provided by RefSeq, May 2010]

EPOR Gene-Disease associations (from GenCC):

• primary familial polycythemia due to EPO receptor mutation

  Inheritance: AD Classification: STRONG, SUPPORTIVE Submitted by: Labcorp Genetics (formerly Invitae), Genomics England PanelApp, Orphanet

ACMG classification

Our verdict: Likely_benign. The variant received -2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.81).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_000121.4. 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
	EPOR	NM_000121.4	MANE Select	c.*35G>T		3_prime_UTR	Exon 8 of 8	NP_000112.1	P19235-1
	EPOR	NR_033663.2		n.1919G>T		non_coding_transcript_exon	Exon 8 of 8

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	EPOR	ENST00000222139.11	TSL:1 MANE Select	c.*35G>T		3_prime_UTR	Exon 8 of 8	ENSP00000222139.5	P19235-1
	EPOR	ENST00000586890.5	TSL:1	n.*1305G>T		non_coding_transcript_exon	Exon 9 of 9	ENSP00000467230.1	K7EP50
	EPOR	ENST00000588681.5	TSL:1	n.1947G>T		non_coding_transcript_exon	Exon 8 of 8

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome AF: 0.00000137 AC: 2 AN: 1460786 Hom.: 0 Cov.: 31 AF XY: 0.00000138 AC XY: 1 AN XY: 726646

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

African (AFR) AF: 0.00 AC: 0 AN: 33460

American (AMR) AF: 0.00 AC: 0 AN: 44720

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26134

East Asian (EAS) AF: 0.00 AC: 0 AN: 39698

South Asian (SAS) AF: 0.0000232 AC: 2 AN: 86206

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53012

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5390

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 1111830

Other (OTH) AF: 0.00 AC: 0 AN: 60336

⚠️ The allele balance in gnomAD4 Exomes is highly skewed from 0.5 (p-value = 0), which strongly suggests a high chance of mosaicism in these individuals.

GnomAD4 genome Cov.: 32

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.81
CADD	Benign	5.1
DANN	Benign	0.70
PhyloP100		0.56

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

Other links and lift over

dbSNP: rs200997864; hg19: chr19-11488625;