chr8-73964168-C-T

Position:

• chr8-73964168-C-T

Variant summary

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

The NM_005648.4(ELOC):​c.-50-4350G>A variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.164 in 144,256 control chromosomes in the GnomAD database, including 2,315 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 0.16 (2315 hom., cov: 25)
• Consequence: ELOC NM_005648.4 intron
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 1.22

Genes affected

ELOC (HGNC:11617): (elongin C) This gene encodes the protein elongin C, which is a subunit of the transcription factor B (SIII) complex. The SIII complex is composed of elongins A/A2, B and C. It activates elongation by RNA polymerase II by suppressing transient pausing of the polymerase at many sites within transcription units. Elongin A functions as the transcriptionally active component of the SIII complex, whereas elongins B and C are regulatory subunits. Elongin A2 is specifically expressed in the testis, and capable of forming a stable complex with elongins B and C. The von Hippel-Lindau tumor suppressor protein binds to elongins B and C, and thereby inhibits transcription elongation. Multiple alternatively spliced transcript variants encoding two distinct isoforms have been identified. [provided by RefSeq, Mar 2011]

ACMG classification

Verdict is Benign. Variant got -12 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.87).
• BA1: GnomAd4 highest subpopulation (AFR) allele frequency at 95% confidence interval = 0.243 is higher than 0.05.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
ELOC	NM_005648.4	c.-50-4350G>A		intron_variant		ENST00000520242.6	NP_005639.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
ELOC	ENST00000520242.6	c.-50-4350G>A		intron_variant		1	NM_005648.4	ENSP00000428171	P1

Frequencies

GnomAD3 genomes AF: 0.164 AC: 23605 AN: 144200 Hom.: 2312 Cov.: 25

Gnomad AFR AF: 0.247

Gnomad AMI AF: 0.144

Gnomad AMR AF: 0.146

Gnomad ASJ AF: 0.246

Gnomad EAS AF: 0.126

Gnomad SAS AF: 0.161

Gnomad FIN AF: 0.0741

Gnomad MID AF: 0.301

Gnomad NFE AF: 0.129

Gnomad OTH AF: 0.186

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

GnomAD4 genome AF: 0.164 AC: 23617 AN: 144256 Hom.: 2315 Cov.: 25 AF XY: 0.161 AC XY: 11255 AN XY: 69790

Gnomad4 AFR AF: 0.248

Gnomad4 AMR AF: 0.146

Gnomad4 ASJ AF: 0.246

Gnomad4 EAS AF: 0.126

Gnomad4 SAS AF: 0.161

Gnomad4 FIN AF: 0.0741

Gnomad4 NFE AF: 0.129

Gnomad4 OTH AF: 0.186

Alfa AF: 0.145 Hom.: 871

Bravo AF: 0.179

Asia WGS AF: 0.158 AC: 547 AN: 3478

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.87
CADD	Benign	6.5
DANN	Benign	0.38

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

Publications

LitVar

Other links and lift over

dbSNP: rs10504553; hg19: chr8-74876403;