8-73946733-T-G

Position:

• chr8-73946733-T-G

Variant summary

Our verdict is Likely pathogenic. Variant got 7 ACMG points: 7P and 0B. PM2 PM5 PP3_Moderate PP5

The ENST00000520242.6(ELOC):​c.236A>C​(p.Tyr79Ser) variant causes a missense change involving the alteration of a conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Likely pathogenic (no stars). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. Y79F) has been classified as Likely pathogenic.

• Frequency: Genomes: not found (cov: 32)
• Consequence: ELOC ENST00000520242.6 missense
• Clinical Significance: Likely pathogenic no assertion criteria provided P:1
• Conservation: PhyloP100: 7.64

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 Likely_pathogenic. Variant got 7 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• PM5: Other missense variant is known to change same aminoacid residue: Variant chr8-73946733-T-A is described in ClinVar as [Likely_pathogenic]. Clinvar id is 376558.Status of the report is no_assertion_criteria_provided, 0 stars.
• PP3: MetaRNN computational evidence supports a deleterious effect, 0.913
• PP5: Variant 8-73946733-T-G is Pathogenic according to our data. Variant chr8-73946733-T-G is described in ClinVar as [Likely_pathogenic]. Clinvar id is 376556.Status of the report is no_assertion_criteria_provided, 0 stars.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
ELOC	NM_005648.4	c.236A>C	p.Tyr79Ser	missense_variant	4/4	ENST00000520242.6	NP_005639.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
ELOC	ENST00000520242.6	c.236A>C	p.Tyr79Ser	missense_variant	4/4	1	NM_005648.4	ENSP00000428171	P1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 31

GnomAD4 genome Cov.: 32

ClinVar

Significance: Likely pathogenic

Submissions summary: Pathogenic:1

Revision: no assertion criteria provided

Submissions by phenotype

Papillary renal cell carcinoma type 1 Pathogenic:1

Likely pathogenic, no assertion criteria provided

literature only

Database of Curated Mutations (DoCM)

May 31, 2016

- -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Pathogenic	0.99
BayesDel_addAF	Pathogenic	0.27	D
BayesDel_noAF	Pathogenic	0.15
CADD	Pathogenic	27
DANN	Uncertain	0.99
DEOGEN2	Benign	0.23	T;T;.;T;T;T;T;T;.
Eigen	Pathogenic	0.77
Eigen_PC	Pathogenic	0.75
FATHMM_MKL	Pathogenic	1.0	D
LIST_S2	Pathogenic	0.98	.;D;D;.;.;.;.;.;D
M_CAP	Benign	0.041	D
MetaRNN	Pathogenic	0.91	D;D;D;D;D;D;D;D;D
MetaSVM	Uncertain	-0.28	T
MutationAssessor	Pathogenic	3.6	H;H;.;H;H;H;H;H;.
MutationTaster	Benign	1.0	D;D;D;D;D;D;D
PrimateAI	Pathogenic	0.84	D
PROVEAN	Pathogenic	-7.5	D;.;D;D;D;D;D;D;D
REVEL	Pathogenic	0.67
Sift	Uncertain	0.0040	D;.;D;D;D;D;D;D;D
Sift4G	Uncertain	0.0060	D;D;D;D;D;D;D;D;.
Polyphen		0.68	P;P;.;P;P;P;P;P;.
Vest4		0.83
MutPred		0.77		Gain of disorder (P = 0.033);Gain of disorder (P = 0.033);.;Gain of disorder (P = 0.033);Gain of disorder (P = 0.033);Gain of disorder (P = 0.033);Gain of disorder (P = 0.033);Gain of disorder (P = 0.033);Gain of disorder (P = 0.033);
MVP		0.88
MPC		2.8
ClinPred		1.0	D
GERP RS		5.7
Varity_R		0.97
gMVP		0.98

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: rs1057519973; hg19: chr8-74858968; COSMIC: COSV53024355;