16-2090261-TC-TCCC

Variant names:

• chr16-2090261-T-TCC
• rs547611708
• NM_001009944.3:c.12444+22_12444+23dupGG

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 0P and 0B.

The NM_001009944.3(PKD1):​c.12444+22_12444+23dupGG variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000299 in 1,606,944 control chromosomes in the GnomAD database, with no homozygous occurrence. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency:
  • Genomes: 𝑓 0.000026 (0 hom., cov: 34)
  • Exomes 𝑓: 0.000030 (0 hom.)
• Consequence: PKD1 NM_001009944.3 intron
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 0.0930
• Publications: 1 publications found

Genes affected

PKD1 (HGNC:9008): (polycystin 1, transient receptor potential channel interacting) This gene encodes a member of the polycystin protein family. The encoded glycoprotein contains a large N-terminal extracellular region, multiple transmembrane domains and a cytoplasmic C-tail. It is an integral membrane protein that functions as a regulator of calcium permeable cation channels and intracellular calcium homoeostasis. It is also involved in cell-cell/matrix interactions and may modulate G-protein-coupled signal-transduction pathways. It plays a role in renal tubular development, and mutations in this gene cause autosomal dominant polycystic kidney disease type 1 (ADPKD1). ADPKD1 is characterized by the growth of fluid-filled cysts that replace normal renal tissue and result in end-stage renal failure. Splice variants encoding different isoforms have been noted for this gene. Also, six pseudogenes, closely linked in a known duplicated region on chromosome 16p, have been described. [provided by RefSeq, Oct 2008]

MIR1225 (HGNC:33931): (microRNA 1225) microRNAs (miRNAs) are short (20-24 nt) non-coding RNAs that are involved in post-transcriptional regulation of gene expression in multicellular organisms by affecting both the stability and translation of mRNAs. miRNAs are transcribed by RNA polymerase II as part of capped and polyadenylated primary transcripts (pri-miRNAs) that can be either protein-coding or non-coding. The primary transcript is cleaved by the Drosha ribonuclease III enzyme to produce an approximately 70-nt stem-loop precursor miRNA (pre-miRNA), which is further cleaved by the cytoplasmic Dicer ribonuclease to generate the mature miRNA and antisense miRNA star (miRNA*) products. The mature miRNA is incorporated into a RNA-induced silencing complex (RISC), which recognizes target mRNAs through imperfect base pairing with the miRNA and most commonly results in translational inhibition or destabilization of the target mRNA. The RefSeq represents the predicted microRNA stem-loop. [provided by RefSeq, Sep 2009]

ACMG classification

Our verdict: Uncertain_significance. The variant received 0 ACMG points.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
PKD1	NM_001009944.3	c.12444+22_12444+23dupGG		intron_variant	Intron 45 of 45	ENST00000262304.9	NP_001009944.3

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
PKD1	ENST00000262304.9	c.12444+22_12444+23dupGG		intron_variant	Intron 45 of 45	1	NM_001009944.3	ENSP00000262304.4
PKD1	ENST00000423118.5	c.12441+22_12441+23dupGG		intron_variant	Intron 45 of 45	1		ENSP00000399501.1
MIR1225	ENST00000408729.1	n.22_23dupGG		non_coding_transcript_exon_variant	Exon 1 of 1	6
PKD1	ENST00000472577.1	n.472+22_472+23dupGG		intron_variant	Intron 2 of 2	2

Frequencies

GnomAD3 genomes AF: 0.0000265 AC: 4 AN: 151144 Hom.: 0 Cov.: 34

Gnomad AFR AF: 0.00

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.00

Gnomad ASJ AF: 0.00

Gnomad EAS AF: 0.00

Gnomad SAS AF: 0.00

Gnomad FIN AF: 0.00

Gnomad MID AF: 0.00

Gnomad NFE AF: 0.0000590

Gnomad OTH AF: 0.00

GnomAD2 exomes AF: 0.0000290 AC: 7 AN: 241054 AF XY: 0.0000228

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: 0.0000653

Gnomad OTH exome AF: 0.00

GnomAD4 exome AF: 0.0000302 AC: 44 AN: 1455800 Hom.: 0 Cov.: 34 AF XY: 0.0000207 AC XY: 15 AN XY: 723498

African (AFR) AF: 0.00 AC: 0 AN: 33352

American (AMR) AF: 0.00 AC: 0 AN: 44328

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 25904

East Asian (EAS) AF: 0.00 AC: 0 AN: 39598

South Asian (SAS) AF: 0.00 AC: 0 AN: 85860

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 51818

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5752

European-Non Finnish (NFE) AF: 0.0000388 AC: 43 AN: 1109094

Other (OTH) AF: 0.0000166 AC: 1 AN: 60094

GnomAD4 genome AF: 0.0000265 AC: 4 AN: 151144 Hom.: 0 Cov.: 34 AF XY: 0.0000136 AC XY: 1 AN XY: 73742

African (AFR) AF: 0.00 AC: 0 AN: 40988

American (AMR) AF: 0.00 AC: 0 AN: 15190

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 3462

East Asian (EAS) AF: 0.00 AC: 0 AN: 5104

South Asian (SAS) AF: 0.00 AC: 0 AN: 4796

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 10494

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 316

European-Non Finnish (NFE) AF: 0.0000590 AC: 4 AN: 67804

Other (OTH) AF: 0.00 AC: 0 AN: 2080

Alfa AF: 0.00 Hom.: 0

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
PhyloP100		0.093

Splicing

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

Other links and lift over

dbSNP: rs547611708; hg19: chr16-2140262;