2-77019205-A-T

Variant names:

• chr2-77019205-A-T
• rs6547115
• NM_001134745.3:c.1552-270289T>A

Variant summary

Our verdict is Likely benign. The variant received -2 ACMG points: 2P and 4B. PM2 BP4_Strong

The NM_001134745.3(LRRTM4):​c.1552-270289T>A variant causes a intron 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. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency: Genomes: not found (cov: 22)
• Consequence: LRRTM4 NM_001134745.3 intron
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -0.998
• Publications: 9 publications found

Genes affected

LRRTM4 (HGNC:19411): (leucine rich repeat transmembrane neuronal 4) Predicted to enable heparan sulfate proteoglycan binding activity. Predicted to be involved in regulation of synapse assembly. Predicted to act upstream of or within AMPA glutamate receptor clustering; positive regulation of synapse assembly; and regulation of presynaptic membrane organization. Predicted to be located in postsynaptic membrane. Predicted to be part of AMPA glutamate receptor complex. Predicted to be active in extracellular matrix; extracellular space; and glutamatergic synapse. Predicted to be integral component of postsynaptic density membrane. [provided by Alliance of Genome Resources, Apr 2022]

ACMG classification

Our verdict: Likely_benign. The variant received -2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.76).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001134745.3. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	LRRTM4	NM_001134745.3	MANE Select	c.1552-270289T>A		intron	N/A	NP_001128217.1
	LRRTM4	NM_001330370.2		c.1555-270289T>A		intron	N/A	NP_001317299.1
	LRRTM4	NM_001282924.3		c.1552-270289T>A		intron	N/A	NP_001269853.1

Ensembl Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	LRRTM4	ENST00000409884.6	TSL:1 MANE Select	c.1552-270289T>A		intron	N/A	ENSP00000387297.1
	LRRTM4	ENST00000409911.5	TSL:5	c.1555-270289T>A		intron	N/A	ENSP00000387228.1
	LRRTM4	ENST00000409093.1	TSL:2	c.1552-270289T>A		intron	N/A	ENSP00000386357.1

Frequencies

GnomAD3 genomes Cov.: 22

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

GnomAD4 genome Cov.: 22

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.76
CADD	Benign	3.5
DANN	Benign	0.85
PhyloP100		-1.0

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: rs6547115; hg19: chr2-77246331;