2-15942195-C-T

Variant summary

Our verdict is Uncertain significance. Variant got 3 ACMG points: 3P and 0B. PM2PP5

The NM_005378.6(MYCN):​c.131C>T​(p.Pro44Leu) variant causes a missense change involving the alteration of a conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. 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. P44H) has been classified as Uncertain significance.

Frequency

Genomes: not found (cov: 33)
Exomes 𝑓: 0.0 ( 0 hom. )
Failed GnomAD Quality Control

Consequence

MYCN
NM_005378.6 missense

Scores

2
12
5

Clinical Significance

Likely pathogenic no assertion criteria provided P:5

Conservation

PhyloP100: 7.67
Variant links:
Genes affected
MYCN (HGNC:7559): (MYCN proto-oncogene, bHLH transcription factor) This gene is a member of the MYC family and encodes a protein with a basic helix-loop-helix (bHLH) domain. This protein is located in the nucleus and must dimerize with another bHLH protein in order to bind DNA. Amplification of this gene is associated with a variety of tumors, most notably neuroblastomas. Multiple alternatively spliced transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Jun 2014]
MYCNOS (HGNC:16911): (MYCN opposite strand) This gene is transcribed in antisense to the v-myc avian myelocytomatosis viral oncogene neuroblastoma derived homolog gene (MYCN). It is thought to encode a small, novel protein that stabilizes MYCN, prevents apoptosis, and promotes cell proliferation. Transcripts at this locus may also act directly as functional RNAs to recruit transcriptional regulators to the promoter of MYCN and stimulate transcription of this oncogene. This gene therefore functions through both RNA and protein products. [provided by RefSeq, Aug 2016]

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 3 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PP5
Variant 2-15942195-C-T is Pathogenic according to our data. Variant chr2-15942195-C-T is described in ClinVar as [Likely_pathogenic]. Clinvar id is 376460.Status of the report is no_assertion_criteria_provided, 0 stars.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
MYCNNM_005378.6 linkuse as main transcriptc.131C>T p.Pro44Leu missense_variant 2/3 ENST00000281043.4

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
MYCNENST00000281043.4 linkuse as main transcriptc.131C>T p.Pro44Leu missense_variant 2/35 NM_005378.6 P1
MYCNENST00000638417.1 linkuse as main transcriptc.157+1452C>T intron_variant 2
MYCNOSENST00000641534.1 linkuse as main transcriptn.55G>A non_coding_transcript_exon_variant 1/3

Frequencies

GnomAD3 genomes
Cov.:
33
GnomAD4 exome
Data not reliable, filtered out with message: AC0
AF:
0.00
AC:
0
AN:
1461382
Hom.:
0
Cov.:
31
AF XY:
0.00
AC XY:
0
AN XY:
727004
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:
0.00
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
33

ClinVar

Significance: Likely pathogenic
Submissions summary: Pathogenic:5
Revision: no assertion criteria provided
LINK: link

Submissions by phenotype

Glioblastoma Pathogenic:1
Likely pathogenic, no assertion criteria providedliterature onlyDatabase of Curated Mutations (DoCM)May 31, 2016- -
Neuroblastoma Pathogenic:1
Likely pathogenic, no assertion criteria providedliterature onlyDatabase of Curated Mutations (DoCM)May 31, 2016- -
Malignant neoplasm of body of uterus Pathogenic:1
Likely pathogenic, no assertion criteria providedliterature onlyDatabase of Curated Mutations (DoCM)May 31, 2016- -
Pancreatic adenocarcinoma Pathogenic:1
Likely pathogenic, no assertion criteria providedliterature onlyDatabase of Curated Mutations (DoCM)May 31, 2016- -
Medulloblastoma Pathogenic:1
Likely pathogenic, no assertion criteria providedliterature onlyDatabase of Curated Mutations (DoCM)May 31, 2016- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
0.90
BayesDel_addAF
Benign
-0.015
T
BayesDel_noAF
Benign
-0.26
CADD
Pathogenic
31
DANN
Uncertain
1.0
DEOGEN2
Benign
0.36
T
Eigen
Uncertain
0.65
Eigen_PC
Uncertain
0.56
FATHMM_MKL
Uncertain
0.96
D
LIST_S2
Uncertain
0.90
D
M_CAP
Uncertain
0.23
D
MetaRNN
Uncertain
0.73
D
MetaSVM
Benign
-0.47
T
MutationAssessor
Uncertain
2.7
M
MutationTaster
Benign
1.0
D
PrimateAI
Uncertain
0.75
T
PROVEAN
Pathogenic
-5.6
D
REVEL
Uncertain
0.42
Sift
Uncertain
0.0040
D
Sift4G
Uncertain
0.0060
D
Polyphen
1.0
D
Vest4
0.59
MutPred
0.70
Loss of glycosylation at P45 (P = 0.1092);
MVP
0.57
MPC
1.9
ClinPred
0.99
D
GERP RS
3.3
Varity_R
0.43
gMVP
0.59

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

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs1057519919; hg19: chr2-16082317; COSMIC: COSV55257406; COSMIC: COSV55257406; API