rs1221882

Positions:

• chr18-52607931-T-A
• chr18-52607931-T-C
• chr18-52607931-T-G

Variant summary

Our verdict is Benign. Variant got -12 ACMG points: 0P and 12B. BP4_Strong BA1

The NM_005215.4(DCC):​c.92-144123T>A variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.43 in 151,932 control chromosomes in the GnomAD database, including 14,033 homozygotes. 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 0.43 (14033 hom., cov: 32)
• Consequence: DCC NM_005215.4 intron
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 0.734

Genes affected

DCC (HGNC:2701): (DCC netrin 1 receptor) This gene encodes a netrin 1 receptor. The transmembrane protein is a member of the immunoglobulin superfamily of cell adhesion molecules, and mediates axon guidance of neuronal growth cones towards sources of netrin 1 ligand. The cytoplasmic tail interacts with the tyrosine kinases Src and focal adhesion kinase (FAK, also known as PTK2) to mediate axon attraction. The protein partially localizes to lipid rafts, and induces apoptosis in the absence of ligand. The protein functions as a tumor suppressor, and is frequently mutated or downregulated in colorectal cancer and esophageal carcinoma. [provided by RefSeq, Oct 2009]

ACMG classification

Verdict is Benign. Variant got -12 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.85).
• BA1: GnomAd4 highest subpopulation (AFR) allele frequency at 95% confidence interval = 0.457 is higher than 0.05.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
DCC	NM_005215.4	c.92-144123T>A		intron_variant		ENST00000442544.7
DCC	XM_017025568.2	c.92-144123T>A		intron_variant
DCC	XM_017025569.2	c.92-144123T>A		intron_variant
DCC	XM_047437311.1	c.92-144123T>A		intron_variant

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
DCC	ENST00000442544.7	c.92-144123T>A		intron_variant		1	NM_005215.4	P1

Frequencies

GnomAD3 genomes AF: 0.430 AC: 65217 AN: 151814 Hom.: 14020 Cov.: 32

Gnomad AFR AF: 0.463

Gnomad AMI AF: 0.510

Gnomad AMR AF: 0.438

Gnomad ASJ AF: 0.424

Gnomad EAS AF: 0.456

Gnomad SAS AF: 0.426

Gnomad FIN AF: 0.377

Gnomad MID AF: 0.427

Gnomad NFE AF: 0.412

Gnomad OTH AF: 0.456

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

GnomAD4 genome AF: 0.430 AC: 65258 AN: 151932 Hom.: 14033 Cov.: 32 AF XY: 0.427 AC XY: 31694 AN XY: 74256

Gnomad4 AFR AF: 0.463

Gnomad4 AMR AF: 0.438

Gnomad4 ASJ AF: 0.424

Gnomad4 EAS AF: 0.455

Gnomad4 SAS AF: 0.426

Gnomad4 FIN AF: 0.377

Gnomad4 NFE AF: 0.412

Gnomad4 OTH AF: 0.456

Alfa AF: 0.271 Hom.: 605

Bravo AF: 0.438

Asia WGS AF: 0.435 AC: 1517 AN: 3478

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.85
CADD	Benign	6.4
DANN	Benign	0.45

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: rs1221882; hg19: chr18-50134301;