NM_000297.4:c.2586C>G

Variant names:

• chr4-88074875-C-G
• rs373043298
• NM_000297.4:c.2586C>G

Variant summary

Our verdict is Likely benign. The variant received -3 ACMG points: 2P and 5B. PM2 BP4_Strong BP7

The NM_000297.4(PKD2):​c.2586C>G​(p.Ala862Ala) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Synonymous variant affecting the same amino acid position (i.e. A862A) has been classified as Likely benign.

• Frequency: Genomes: not found (cov: 32)
• Consequence: PKD2 NM_000297.4 synonymous
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -3.19
• Publications: 1 publications found

Genes affected

PKD2 (HGNC:9009): (polycystin 2, transient receptor potential cation channel) This gene encodes a member of the polycystin protein family. The encoded protein is a multi-pass membrane protein that functions as a calcium permeable cation channel, and is involved in calcium transport and calcium signaling in renal epithelial cells. This protein interacts with polycystin 1, and they may be partners in a common signaling cascade involved in tubular morphogenesis. Mutations in this gene are associated with autosomal dominant polycystic kidney disease type 2. [provided by RefSeq, Mar 2011]

PKD2 Gene-Disease associations (from GenCC):

• autosomal dominant polycystic kidney disease

  Inheritance: AD Classification: DEFINITIVE, SUPPORTIVE Submitted by: Orphanet, ClinGen
• polycystic kidney disease 2

  Inheritance: AD, AR Classification: STRONG, LIMITED Submitted by: Labcorp Genetics (formerly Invitae), Ambry Genetics, Genomics England PanelApp

ACMG classification

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

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.49).
• BP7: Synonymous conserved (PhyloP=-3.19 with no splicing effect.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_000297.4. 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
	PKD2	NM_000297.4	MANE Select	c.2586C>G	p.Ala862Ala	synonymous	Exon 14 of 15	NP_000288.1
	PKD2	NM_001440544.1		c.2361C>G	p.Ala787Ala	synonymous	Exon 13 of 14	NP_001427473.1
	PKD2	NR_156488.2		n.2564C>G		non_coding_transcript_exon	Exon 13 of 14

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	PKD2	ENST00000237596.7	TSL:1 MANE Select	c.2586C>G	p.Ala862Ala	synonymous	Exon 14 of 15	ENSP00000237596.2
	PKD2	ENST00000927447.1		c.2583C>G	p.Ala861Ala	synonymous	Exon 14 of 15	ENSP00000597506.1
	PKD2	ENST00000927448.1		c.2487C>G	p.Ala829Ala	synonymous	Exon 13 of 14	ENSP00000597507.1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD2 exomes AF: 0.00000398 AC: 1 AN: 251090 AF XY: 0.00

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: 0.00000882

Gnomad OTH exome AF: 0.00

GnomAD4 exome Cov.: 32

GnomAD4 genome Cov.: 32

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.49
CADD	Benign	0.13
DANN	Benign	0.55
PhyloP100		-3.2

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: rs373043298; hg19: chr4-88996027;