15-34024775-A-T

Variant names:

• chr15-34024775-A-T
• rs2339350
• NM_012125.4:c.-407-21765A>T

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2 BP4_Strong

The NM_012125.4(CHRM5):​c.-407-21765A>T variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000532 in 150,258 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency: Genomes: 𝑓 0.000053 (0 hom., cov: 26)
• Consequence: CHRM5 NM_012125.4 intron
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -0.999

Genes affected

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]

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]

ACMG classification

Verdict is Likely_benign. Variant got -2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.97).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
CHRM5	NM_012125.4	c.-407-21765A>T		intron_variant	Intron 1 of 2	ENST00000383263.7	NP_036257.1
AVEN	NM_020371.3	c.267+14005T>A		intron_variant	Intron 1 of 5	ENST00000306730.8	NP_065104.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
CHRM5	ENST00000383263.7	c.-407-21765A>T		intron_variant	Intron 1 of 2	2	NM_012125.4	ENSP00000372750.5
AVEN	ENST00000306730.8	c.267+14005T>A		intron_variant	Intron 1 of 5	1	NM_020371.3	ENSP00000306822.3

Frequencies

GnomAD3 genomes AF: 0.0000533 AC: 8 AN: 150152 Hom.: 0 Cov.: 26

Gnomad AFR AF: 0.000171

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.00

Gnomad ASJ AF: 0.00

Gnomad EAS AF: 0.000197

Gnomad SAS AF: 0.00

Gnomad FIN AF: 0.00

Gnomad MID AF: 0.00

Gnomad NFE AF: 0.00

Gnomad OTH AF: 0.00

We have no GnomAD4 exomes data on this position. Probably position not covered by the project.

GnomAD4 genome AF: 0.0000532 AC: 8 AN: 150258 Hom.: 0 Cov.: 26 AF XY: 0.0000410 AC XY: 3 AN XY: 73166

Gnomad4 AFR AF: 0.000170

Gnomad4 AMR AF: 0.00

Gnomad4 ASJ AF: 0.00

Gnomad4 EAS AF: 0.000197

Gnomad4 SAS AF: 0.00

Gnomad4 FIN AF: 0.00

Gnomad4 NFE AF: 0.00

Gnomad4 OTH AF: 0.00

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.97
CADD	Benign	1.6
DANN	Benign	0.28

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

Other links and lift over

dbSNP: rs2339350; hg19: chr15-34316976;