chr8-127396987-T-C

Position:

• chr8-127396987-T-C

Variant summary

Our verdict is Benign. Variant got -12 ACMG points: 0P and 12B. BP4_Strong BA1

The NR_117100.1(CASC8):​n.1176+23842A>G variant causes a intron, non coding transcript change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.722 in 152,150 control chromosomes in the GnomAD database, including 39,809 homozygotes. 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: 𝑓 0.72 (39809 hom., cov: 32)
• Consequence: CASC8 NR_117100.1 intron, non_coding_transcript
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -2.66

Genes affected

CASC8 (HGNC:45129): (cancer susceptibility 8)

POU5F1B (HGNC:9223): (POU class 5 homeobox 1B) This intronless gene was thought to be a transcribed pseudogene of POU class 5 homeobox 1, however, it has been reported that this gene can encode a functional protein. The encoded protein is nearly the same length as and highly similar to the POU class 5 homeobox 1 transcription factor, has been shown to be a weak transcriptional activator and may play a role in carcinogenesis and eye development. [provided by RefSeq, Apr 2009]

PCAT1 (HGNC:43022): (prostate cancer associated transcript 1) This gene produces a long non-coding RNA that promotes cell proliferation and is upregulated in prostate, colorectal, and other cancers. This RNA negatively regulates the BRCA2 tumor suppressor protein and positively regulates Myc oncoprotein. It contains binding sites for microRNAs, and may act as a sponge for microRNAs that regulate cell growth pathways. [provided by RefSeq, Dec 2017]

ACMG classification

Verdict is Benign. Variant got -12 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.92).
• BA1: GnomAd4 highest subpopulation (AFR) allele frequency at 95% confidence interval = 0.768 is higher than 0.05.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
CASC8	NR_117100.1	n.1176+23842A>G		intron_variant, non_coding_transcript_variant

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
CASC8	ENST00000502082.5	n.1176+23842A>G		intron_variant, non_coding_transcript_variant		1

Frequencies

GnomAD3 genomes AF: 0.722 AC: 109715 AN: 152032 Hom.: 39759 Cov.: 32

Gnomad AFR AF: 0.775

Gnomad AMI AF: 0.551

Gnomad AMR AF: 0.733

Gnomad ASJ AF: 0.710

Gnomad EAS AF: 0.713

Gnomad SAS AF: 0.677

Gnomad FIN AF: 0.692

Gnomad MID AF: 0.750

Gnomad NFE AF: 0.697

Gnomad OTH AF: 0.732

We have no GnomAD4 exomes data on this position. Probably position not covered by the project.

GnomAD4 genome AF: 0.722 AC: 109821 AN: 152150 Hom.: 39809 Cov.: 32 AF XY: 0.721 AC XY: 53642 AN XY: 74378

Gnomad4 AFR AF: 0.776

Gnomad4 AMR AF: 0.733

Gnomad4 ASJ AF: 0.710

Gnomad4 EAS AF: 0.713

Gnomad4 SAS AF: 0.677

Gnomad4 FIN AF: 0.692

Gnomad4 NFE AF: 0.697

Gnomad4 OTH AF: 0.733

Alfa AF: 0.709 Hom.: 12362

Bravo AF: 0.728

Asia WGS AF: 0.700 AC: 2439 AN: 3478

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.92
CADD	Benign	0.31
DANN	Benign	0.58

Splicing

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

Publications

LitVar

Other links and lift over

dbSNP: rs11985829; hg19: chr8-128409232;