14-100850055-C-T

Variant names:

• chr14-100850055-C-T
• rs188511607
• ENST00000649261.2:n.1643+4522C>T

Variant summary

Our verdict is Likely benign. The variant received -5 ACMG points: 0P and 5B. BP4_Strong BP6

The NR_046473.1(MEG3):​n.5439C>T variant causes a non coding transcript exon change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00163 in 152,136 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (no stars).

• Frequency:
  • Genomes: 𝑓 0.0016 (0 hom., cov: 33)
  • Failed GnomAD Quality Control
• Consequence: MEG3 NR_046473.1 non_coding_transcript_exon
• Clinical Significance: Likely benign no assertion criteria provided B:1
• Conservation: PhyloP100: 0.190
• Publications: 0 publications found

Genes affected

MEG3 (HGNC:14575): (maternally expressed 3) This gene is a maternally expressed imprinted gene. Multiple alternatively spliced transcript variants have been transcribed from this gene and all of them are long non-coding RNAs (lncRNAs). This gene is expressed in many normal tissues, but its expression is lost in multiple cancer cell lines of various tissue origins. It inhibits tumor cell proliferation in vitro. It also interacts with the tumor suppressor p53, and regulates p53 target gene expression. Its deletion enhances angiogenesis in vivo. Many experimental evidences demonstrate that this gene is a lncRNA tumor suppressor. [provided by RefSeq, Mar 2012]

ENSG00000258663 (HGNC:):

MIR493HG (HGNC:55978): (MIR493 cluster host gene)

ACMG classification

Our verdict: Likely_benign. The variant received -5 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.62).
• BP6: Variant 14-100850055-C-T is Benign according to our data. Variant chr14-100850055-C-T is described in ClinVar as Likely_benign. ClinVar VariationId is 3041128.Status of the report is no_assertion_criteria_provided, 0 stars.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NR_046473.1. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	MEG3	NR_190993.1	MANE Select	n.1643+4522C>T		intron	N/A
	MEG3	NR_046473.1		n.5439C>T		non_coding_transcript_exon	Exon 7 of 7
	MEG3	NR_190994.1		n.5549C>T		non_coding_transcript_exon	Exon 8 of 8

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	MEG3	ENST00000649261.2	MANE Select	n.1643+4522C>T		intron	N/A
	MEG3	ENST00000398461.6	TSL:1	n.3121+4522C>T		intron	N/A
	MEG3	ENST00000429159.7	TSL:1	n.1275+4522C>T		intron	N/A

Frequencies

GnomAD3 genomes AF: 0.00163 AC: 248 AN: 152018 Hom.: 0 Cov.: 33

Gnomad AFR AF: 0.000580

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.000852

Gnomad ASJ AF: 0.00

Gnomad EAS AF: 0.000962

Gnomad SAS AF: 0.00

Gnomad FIN AF: 0.000284

Gnomad MID AF: 0.00

Gnomad NFE AF: 0.00296

Gnomad OTH AF: 0.000956

GnomAD4 exome Data not reliable, filtered out with message: AC0 AC: 0 AN: 0 Hom.: 0 Cov.: 0 AC XY: 0 AN XY: 0

African (AFR) AC: 0 AN: 0

American (AMR) AC: 0 AN: 0

Ashkenazi Jewish (ASJ) AC: 0 AN: 0

East Asian (EAS) AC: 0 AN: 0

South Asian (SAS) AC: 0 AN: 0

European-Finnish (FIN) AC: 0 AN: 0

Middle Eastern (MID) AC: 0 AN: 0

European-Non Finnish (NFE) AC: 0 AN: 0

Other (OTH) AC: 0 AN: 0

GnomAD4 genome AF: 0.00163 AC: 248 AN: 152136 Hom.: 0 Cov.: 33 AF XY: 0.00152 AC XY: 113 AN XY: 74364

African (AFR) AF: 0.000578 AC: 24 AN: 41504

American (AMR) AF: 0.000851 AC: 13 AN: 15280

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 3470

East Asian (EAS) AF: 0.000965 AC: 5 AN: 5184

South Asian (SAS) AF: 0.00 AC: 0 AN: 4820

European-Finnish (FIN) AF: 0.000284 AC: 3 AN: 10554

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 292

European-Non Finnish (NFE) AF: 0.00296 AC: 201 AN: 68008

Other (OTH) AF: 0.000946 AC: 2 AN: 2114

Alfa AF: 0.00164 Hom.: 0

Bravo AF: 0.00172

ClinVar

ClinVar submissions

Significance: Likely benign

Revision: no assertion criteria provided

Pathogenic	VUS	Benign	Condition
-	-	1	MEG3-related disorder (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.62
CADD	Benign	8.8
DANN	Benign	0.91
PhyloP100		0.19

Splicing

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

Other links and lift over

dbSNP: rs188511607; hg19: chr14-101316392;