chr16-83899146-T-C
Variant summary
Our verdict is Pathogenic. Variant got 14 ACMG points: 14P and 0B. PVS1PS1_ModeratePM2PP5_Moderate
The NM_012213.3(MLYCD):c.2T>C(p.Met1?) variant causes a start lost change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000202 in 990,390 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Pathogenic (★).
Frequency
Genomes: not found (cov: 33)
Exomes 𝑓: 0.0000020 ( 0 hom. )
Consequence
MLYCD
NM_012213.3 start_lost
NM_012213.3 start_lost
Scores
6
4
6
Clinical Significance
Conservation
PhyloP100: 1.70
Genes affected
MLYCD (HGNC:7150): (malonyl-CoA decarboxylase) The product of this gene catalyzes the breakdown of malonyl-CoA to acetyl-CoA and carbon dioxide. Malonyl-CoA is an intermediate in fatty acid biosynthesis, and also inhibits the transport of fatty acyl CoAs into mitochondria. Consequently, the encoded protein acts to increase the rate of fatty acid oxidation. It is found in mitochondria, peroxisomes, and the cytoplasm. Mutations in this gene result in malonyl-CoA decarboyxlase deficiency. [provided by RefSeq, Jul 2008]
Genome browser will be placed here
ACMG classification
Classification made for transcript
Verdict is Pathogenic. Variant got 14 ACMG points.
PVS1
?
Start lost variant, no new inframe start found.
PS1
?
Another start lost variant in NM_012213.3 (MLYCD) was described as [Likely_pathogenic] in ClinVar as 2634044
PM2
?
Very rare variant in population databases, with high coverage;
PP5
?
Variant 16-83899146-T-C is Pathogenic according to our data. Variant chr16-83899146-T-C is described in ClinVar as [Pathogenic]. Clinvar id is 2705148.Status of the report is criteria_provided_single_submitter, 1 stars.
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | MANE | UniProt |
---|---|---|---|---|---|---|---|
MLYCD | NM_012213.3 | c.2T>C | p.Met1? | start_lost | 1/5 | ENST00000262430.6 |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|
MLYCD | ENST00000262430.6 | c.2T>C | p.Met1? | start_lost | 1/5 | 1 | NM_012213.3 | P1 |
Frequencies
GnomAD3 genomes ? Cov.: 33
GnomAD3 genomes
?
Cov.:
33
GnomAD4 exome AF: 0.00000202 AC: 2AN: 990390Hom.: 0 Cov.: 28 AF XY: 0.00000212 AC XY: 1AN XY: 472640
GnomAD4 exome
AF:
AC:
2
AN:
990390
Hom.:
Cov.:
28
AF XY:
AC XY:
1
AN XY:
472640
Gnomad4 AFR exome
AF:
Gnomad4 AMR exome
AF:
Gnomad4 ASJ exome
AF:
Gnomad4 EAS exome
AF:
Gnomad4 SAS exome
AF:
Gnomad4 FIN exome
AF:
Gnomad4 NFE exome
AF:
Gnomad4 OTH exome
AF:
GnomAD4 genome ? Cov.: 33
GnomAD4 genome
?
Cov.:
33
Bravo
AF:
ClinVar
Significance: Pathogenic
Submissions summary: Pathogenic:1
Revision: criteria provided, single submitter
LINK: link
Submissions by phenotype
Deficiency of malonyl-CoA decarboxylase Pathogenic:1
Pathogenic, criteria provided, single submitter | clinical testing | Invitae | Dec 02, 2023 | This sequence change affects the initiator methionine of the MLYCD mRNA. The next in-frame methionine is located at codon 40. This variant is not present in population databases (gnomAD no frequency). Disruption of the initiator codon has been observed in individual(s) with biochemical features of MLYCD-related disorders (PMID: 24613099, 32602666; Invitae). In at least one individual the data is consistent with being in trans (on the opposite chromosome) from a pathogenic variant. Algorithms developed to predict the effect of variants on protein structure and function are not available or were not evaluated for this variant. Experimental studies have shown that disruption of the initiator codon affects MLYCD function (PMID: 24613099). For these reasons, this variant has been classified as Pathogenic. - |
Computational scores
Source:
Name
Calibrated prediction
Score
Prediction
BayesDel_addAF
Pathogenic
D
BayesDel_noAF
Pathogenic
Cadd
Uncertain
Dann
Uncertain
DEOGEN2
Benign
T
Eigen
Benign
Eigen_PC
Benign
FATHMM_MKL
Benign
D
LIST_S2
Uncertain
D
M_CAP
Pathogenic
D
MetaRNN
Pathogenic
D
MetaSVM
Uncertain
D
MutationTaster
Benign
N
PROVEAN
Benign
N
REVEL
Uncertain
Sift
Pathogenic
D
Sift4G
Pathogenic
D
Polyphen
B
Vest4
MutPred
Gain of phosphorylation at M1 (P = 0.0101);
MVP
ClinPred
D
GERP RS
RBP_binding_hub_radar
RBP_regulation_power_radar
Varity_R
gMVP
Splicing
Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
Details are displayed if max score is > 0.2
Find out detailed SpliceAI scores and Pangolin per-transcript scores at