rs2287019

Variant names:

• chr19-45698914-C-A
• rs2287019
• NM_017659.4:c.886+14C>A

Your query was ambiguous. Multiple possible variants found:

• chr19-45698914-C-A
• chr19-45698914-C-T

Variant summary

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

The NM_017659.4(QPCTL):​c.886+14C>A variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000686 in 1,457,838 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: 31)
  • Exomes 𝑓: 6.9e-7 (0 hom.)
• Consequence: QPCTL NM_017659.4 intron
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -1.55
• Publications: 0 publications found

Genes affected

QPCTL (HGNC:25952): (glutaminyl-peptide cyclotransferase like) Enables glutaminyl-peptide cyclotransferase activity and zinc ion binding activity. Acts upstream of or within peptidyl-pyroglutamic acid biosynthetic process, using glutaminyl-peptide cyclotransferase. Located in Golgi apparatus. [provided by Alliance of Genome Resources, Apr 2022]

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=-0.91).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_017659.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	QPCTL	NM_017659.4	MANE Select	c.886+14C>A		intron	N/A	NP_060129.2
	QPCTL	NM_001163377.2		c.604+14C>A		intron	N/A	NP_001156849.1

Ensembl Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	QPCTL	ENST00000012049.10	TSL:2 MANE Select	c.886+14C>A		intron	N/A	ENSP00000012049.4
	QPCTL	ENST00000366382.8	TSL:2	c.604+14C>A		intron	N/A	ENSP00000387944.2
	QPCTL	ENST00000592769.1	TSL:5	n.339+14C>A		intron	N/A

Frequencies

GnomAD3 genomes Cov.: 31

GnomAD4 exome AF: 6.86e-7 AC: 1 AN: 1457838 Hom.: 0 Cov.: 32 AF XY: 0.00 AC XY: 0 AN XY: 725540

⚠️ 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: 33370

American (AMR) AF: 0.00 AC: 0 AN: 44698

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26090

East Asian (EAS) AF: 0.00 AC: 0 AN: 39640

South Asian (SAS) AF: 0.00 AC: 0 AN: 86170

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53282

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5750

European-Non Finnish (NFE) AF: 9.02e-7 AC: 1 AN: 1108600

Other (OTH) AF: 0.00 AC: 0 AN: 60238

⚠️ 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.: 31

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.91
CADD	Benign	0.047
DANN	Benign	0.41
PhyloP100		-1.6
Mutation Taster		=100/0	polymorphism

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: rs2287019; hg19: chr19-46202172;