chr17-7220154-G-T

Variant names:

• chr17-7220154-G-T
• rs754806489
• NM_000018.4:c.95G>T

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 2P and 2B. PM2 BP4_Moderate

The NM_000018.4(ACADVL):​c.95G>T​(p.Arg32Leu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000718 in 1,393,292 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/22 in silico tools predict a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R32Q) has been classified as Uncertain significance.

• Frequency:
  • Genomes: not found (cov: 33)
  • Exomes 𝑓: 7.2e-7 (0 hom.)
• Consequence: ACADVL NM_000018.4 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -0.0110
• Publications: 0 publications found

Genes affected

ACADVL (HGNC:92): (acyl-CoA dehydrogenase very long chain) The protein encoded by this gene is targeted to the inner mitochondrial membrane where it catalyzes the first step of the mitochondrial fatty acid beta-oxidation pathway. This acyl-Coenzyme A dehydrogenase is specific to long-chain and very-long-chain fatty acids. A deficiency in this gene product reduces myocardial fatty acid beta-oxidation and is associated with cardiomyopathy. Alternative splicing results in multiple transcript variants encoding different isoforms. [provided by RefSeq, Jul 2008]

DLG4 (HGNC:2903): (discs large MAGUK scaffold protein 4) This gene encodes a member of the membrane-associated guanylate kinase (MAGUK) family. It heteromultimerizes with another MAGUK protein, DLG2, and is recruited into NMDA receptor and potassium channel clusters. These two MAGUK proteins may interact at postsynaptic sites to form a multimeric scaffold for the clustering of receptors, ion channels, and associated signaling proteins. Multiple transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Jul 2008]

DLG4 Gene-Disease associations (from GenCC):

• complex neurodevelopmental disorder

  Inheritance: AD Classification: DEFINITIVE Submitted by: ClinGen
• intellectual developmental disorder 62

  Inheritance: AD Classification: STRONG Submitted by: Ambry Genetics, Labcorp Genetics (formerly Invitae), G2P

ACMG classification

Our verdict: Uncertain_significance. The variant received 0 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.086883515).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
ACADVL	NM_000018.4	c.95G>T	p.Arg32Leu	missense_variant	Exon 2 of 20	ENST00000356839.10	NP_000009.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
ACADVL	ENST00000356839.10	c.95G>T	p.Arg32Leu	missense_variant	Exon 2 of 20	1	NM_000018.4	ENSP00000349297.5

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome AF: 7.18e-7 AC: 1 AN: 1393292 Hom.: 0 Cov.: 34 AF XY: 0.00000145 AC XY: 1 AN XY: 688096

African (AFR) AF: 0.00 AC: 0 AN: 32600

American (AMR) AF: 0.00 AC: 0 AN: 36008

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 25126

East Asian (EAS) AF: 0.00 AC: 0 AN: 37282

South Asian (SAS) AF: 0.00 AC: 0 AN: 80400

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 34590

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 4896

European-Non Finnish (NFE) AF: 9.22e-7 AC: 1 AN: 1084210

Other (OTH) AF: 0.00 AC: 0 AN: 58180

GnomAD4 genome Cov.: 33

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.080
BayesDel_addAF	Benign	0.0085	T
BayesDel_noAF	Benign	-0.23
CADD	Benign	10
DANN	Benign	0.89
DEOGEN2	Benign	0.16	.;T;.;.;.;T
Eigen	Benign	-1.0
Eigen_PC	Benign	-1.1
FATHMM_MKL	Benign	0.016	N
LIST_S2	Benign	0.73	T;T;T;T;T;T
M_CAP	Uncertain	0.22	D
MetaRNN	Benign	0.087	T;T;T;T;T;T
MetaSVM	Uncertain	-0.18	T
MutationAssessor	Uncertain	2.4	.;M;.;M;.;.
PhyloP100		-0.011
PrimateAI	Benign	0.39	T
PROVEAN	Benign	-0.28	N;.;.;N;.;.
REVEL	Benign	0.095
Sift	Benign	0.096	T;.;.;T;.;.
Sift4G	Benign	0.13	T;T;T;T;T;T
Polyphen		0.0	.;B;.;B;.;.
Vest4		0.19
MutPred		0.33		.;Loss of methylation at R32 (P = 0.0132);Loss of methylation at R32 (P = 0.0132);Loss of methylation at R32 (P = 0.0132);Loss of methylation at R32 (P = 0.0132);Loss of methylation at R32 (P = 0.0132);
MVP		0.83
MPC		0.24
ClinPred		0.12	T
GERP RS		-0.85
PromoterAI		-0.043	Neutral
RBP_binding_hub_radar		0.92
RBP_regulation_power_radar		2.1
Varity_R		0.040
gMVP		0.29
Mutation Taster		=98/2	polymorphism

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

Other links and lift over

dbSNP: rs754806489; hg19: chr17-7123473;