chr17-1707848-C-T

Variant names:

• chr17-1707848-C-T
• rs1163736109
• NM_001164407.2:c.717G>A

Variant summary

Our verdict is Likely benign. The variant received -3 ACMG points: 2P and 5B. PM2 BP4_Strong BP7

The NM_001164407.2(TLCD2):​c.717G>A​(p.Glu239Glu) variant causes a synonymous 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: 32)
• Consequence: TLCD2 NM_001164407.2 synonymous
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 1.77
• Publications: 0 publications found

Genes affected

TLCD2 (HGNC:33522): (TLC domain containing 2) Involved in several processes, including membrane assembly; phospholipid homeostasis; and regulation of membrane lipid distribution. Located in plasma membrane. [provided by Alliance of Genome Resources, Apr 2022]

ACMG classification

Our verdict: Likely_benign. The variant received -3 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.54).
• BP7: Synonymous conserved (PhyloP=1.77 with no splicing effect.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001164407.2. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	TLCD2	NM_001164407.2	MANE Select	c.717G>A	p.Glu239Glu	synonymous	Exon 4 of 4	NP_001157879.1	A6NGC4

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	TLCD2	ENST00000330676.8	TSL:2 MANE Select	c.717G>A	p.Glu239Glu	synonymous	Exon 4 of 4	ENSP00000331965.6	A6NGC4

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 29

GnomAD4 genome Cov.: 32

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.54
CADD	Benign	1.9
DANN	Benign	0.62
PhyloP100		1.8

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: rs1163736109; hg19: chr17-1611142;