chr15-34038911-C-A

Position:

• chr15-34038911-C-A

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The NM_020371.3(AVEN):​c.136G>T​(p.Asp46Tyr) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 0.0 (0 hom.)
  • Failed GnomAD Quality Control
• Consequence: AVEN NM_020371.3 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 1.74

Genes affected

AVEN (HGNC:13509): (apoptosis and caspase activation inhibitor) Involved in negative regulation of apoptotic process. Located in membrane. [provided by Alliance of Genome Resources, Apr 2022]

CHRM5 (HGNC:1954): (cholinergic receptor muscarinic 5) The muscarinic cholinergic receptors belong to a larger family of G protein-coupled receptors. The functional diversity of these receptors is defined by the binding of acetylcholine and includes cellular responses such as adenylate cyclase inhibition, phosphoinositide degeneration, and potassium channel mediation. Muscarinic receptors influence many effects of acetylcholine in the central and peripheral nervous system. The clinical implications of this receptor are unknown; however, stimulation of this receptor is known to increase cyclic AMP levels. [provided by RefSeq, Jul 2008]

ACMG classification

Verdict is Uncertain_significance. Variant got 2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
AVEN	NM_020371.3	c.136G>T	p.Asp46Tyr	missense_variant	1/6	ENST00000306730.8	NP_065104.1
CHRM5	NM_012125.4	c.-407-7629C>A		intron_variant		ENST00000383263.7	NP_036257.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
AVEN	ENST00000306730.8	c.136G>T	p.Asp46Tyr	missense_variant	1/6	1	NM_020371.3	ENSP00000306822	P1
CHRM5	ENST00000383263.7	c.-407-7629C>A		intron_variant		2	NM_012125.4	ENSP00000372750	P1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Data not reliable, filtered out with message: AC0 AF: 0.00 AC: 0 AN: 968894 Hom.: 0 Cov.: 29 AF XY: 0.00 AC XY: 0 AN XY: 459398

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.: 32

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

not specified Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Jan 19, 2022

The c.136G>T (p.D46Y) alteration is located in exon 1 (coding exon 1) of the AVEN gene. This alteration results from a G to T substitution at nucleotide position 136, causing the aspartic acid (D) at amino acid position 46 to be replaced by a tyrosine (Y). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.30
BayesDel_addAF	Uncertain	0.024	T
BayesDel_noAF	Benign	-0.20
CADD	Pathogenic	26
DANN	Benign	0.97
DEOGEN2	Benign	0.022	T
Eigen	Benign	0.071
Eigen_PC	Benign	0.032
FATHMM_MKL	Benign	0.55	D
LIST_S2	Benign	0.24	T
M_CAP	Pathogenic	0.52	D
MetaRNN	Benign	0.34	T
MetaSVM	Benign	-0.99	T
MutationAssessor	Benign	0.90	L
MutationTaster	Benign	0.99	D;D;D
PrimateAI	Pathogenic	0.94	D
PROVEAN	Benign	-0.87	N
REVEL	Benign	0.16
Sift	Pathogenic	0.0	D
Sift4G	Uncertain	0.034	D
Polyphen		0.99	D
Vest4		0.34
MutPred		0.27		Gain of phosphorylation at D46 (P = 0.0714);
MVP		0.62
MPC		0.0010
ClinPred		0.57	D
GERP RS		2.3
Varity_R		0.21
gMVP		0.24

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.32		Details are displayed if max score is > 0.2
DS_DG_spliceai		0.32		Position offset: 2

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

Publications

No publications associated with this variant yet.

Other links and lift over

hg19: chr15-34331112;