chr1-43388366-C-T

Variant names:

• chr1-43388366-C-T
• rs1045601104
• NM_201542.5:c.69G>A

Variant summary

Our verdict is Likely benign. Variant got -1 ACMG points: 2P and 3B. PM2 BP4_Moderate BP7

The NM_201542.5(MED8):​c.69G>A​(p.Lys23Lys) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000274 in 1,461,400 control chromosomes in the GnomAD database, with no homozygous occurrence. 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: not found (cov: 32)
  • Exomes 𝑓: 0.0000027 (0 hom.)
• Consequence: MED8 NM_201542.5 synonymous
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 1.98

Genes affected

MED8 (HGNC:19971): (mediator complex subunit 8) This gene encodes a protein component of the mediator complex, which aids in transcriptional activation through interaction with RNA polymerase II and gene-specific transcription factors. The encoded protein may also function in ubiquitin ligation and protein degradation. Alternatively spliced transcript variants encoding multiple isoforms have been observed for this gene. [provided by RefSeq, Jan 2013]

MED8-AS1 (HGNC:40908): (MED8 antisense RNA 1)

ACMG classification

Verdict is Likely_benign. Variant got -1 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.38).
• BP7: Synonymous conserved (PhyloP=1.98 with no splicing effect.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
MED8	NM_201542.5	c.69G>A	p.Lys23Lys	synonymous_variant	Exon 2 of 7	ENST00000372457.9	NP_963836.2
MED8	NM_052877.5	c.69G>A	p.Lys23Lys	synonymous_variant	Exon 2 of 8		NP_443109.2
MED8	NM_001001653.3	c.-181G>A		5_prime_UTR_variant	Exon 2 of 7		NP_001001653.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
MED8	ENST00000372457.9	c.69G>A	p.Lys23Lys	synonymous_variant	Exon 2 of 7	2	NM_201542.5	ENSP00000361535.4
MED8	ENST00000372455.4	c.-181G>A		5_prime_UTR_variant	Exon 2 of 7	1		ENSP00000361533.4
MED8	ENST00000290663.10	c.69G>A	p.Lys23Lys	synonymous_variant	Exon 2 of 8	5		ENSP00000290663.6
MED8-AS1	ENST00000436713.1	n.282-340C>T		intron_variant	Intron 3 of 3	3

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome AF: 0.00000274 AC: 4 AN: 1461400 Hom.: 0 Cov.: 31 AF XY: 0.00000275 AC XY: 2 AN XY: 727022

Gnomad4 AFR exome AF: 0.00

Gnomad4 AMR exome AF: 0.00

Gnomad4 ASJ exome AF: 0.00

Gnomad4 EAS exome AF: 0.00

Gnomad4 SAS exome AF: 0.00

Gnomad4 FIN exome AF: 0.00

Gnomad4 NFE exome AF: 0.00000360

Gnomad4 OTH exome AF: 0.00

GnomAD4 genome Cov.: 32

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.38
CADD	Benign	15
DANN	Benign	0.83

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: rs1045601104; hg19: chr1-43854037;