DCC

Chr 18ARAD

DCC netrin 1 receptor

Also known as: CRC18, CRCR1, HGPPS2, IGDCC1, MRMV1, NTN1R1

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]

Primary Disease Associations & Inheritance

Colorectal cancer, somaticMIM #114500
Esophageal carcinoma, somaticMIM #133239
Gaze palsy, familial horizontal, with progressive scoliosis, 2MIM #617542
AR
Mirror movements 1 and/or agenesis of the corpus callosumMIM #157600
AD
382
ClinVar variants
104
Pathogenic / LP
0.99
pLI score· haploinsufficient
3
Active trials
Clinical SummaryDCC
🧬
Gene-Disease Validity (ClinGen)
mirror movements 1 and/or agenesis of the corpus callosum · ADDefinitive

Definitive — sufficient evidence for diagnostic panels

Population Constraint (gnomAD)
Highly constrained gene — heterozygous loss-of-function variants are very rare in the population (pLI 0.99). One damaged copy is likely sufficient to cause disease.
📋
ClinVar Variants
104 Pathogenic / Likely Pathogenic· 203 VUS of 382 total submissions
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Clinical Trials
3 active or recruiting trials — potential therapeutic options may be available

Population Genetics & Constraint

gnomAD v4 — loss-of-function & missense intolerance

LoF intolerant — likely haploinsufficient
LoF Constraint?LOEUF (Loss-of-function Observed/Expected Upper bound Fraction) is the upper bound of the 90% CI for LoF OE — the preferred gnomAD v4 metric. Lower = more intolerant to LoF. LOEUF < 0.35 = highly constrained.
0.28LOEUF
pLI 0.994
Z-score 6.83
OE 0.18 (0.120.28)
Highly constrained

Highly LoF-intolerant (top ~10% of genes)

Missense Constraint?Missense Z-score: standard deviations fewer missense variants observed vs. expected. Z > 3.09 (p < 0.001) = gene does not tolerate missense variation. OE missense < 0.6 is also considered constrained.
0.37Z-score
OE missense 0.96 (0.911.02)
752 obs / 781.3 exp
Tolerant

Mild missense constraint

Observed / Expected Ratios?Shaded band = 90% confidence interval. Vertical tick = point estimate. Grey threshold line = gnomAD constraint cutoff for that variant class.
LoF OE?Ratio of observed to expected LoF variants. Upper CI bound (LOEUF) ≤ 0.35 = strong LoF constraint signal.0.18 (0.120.28)
00.351.4
Missense OE?Ratio of observed to expected missense variants. OE ≤ 0.6 = fewer missense variants than expected by chance.0.96 (0.911.02)
00.61.4
Synonymous OE?Control metric — synonymous variants are largely neutral and expected near OE = 1.0. Significant deviation may indicate annotation issues.1.16
01.21.6
LoF obs/exp: 15 / 81.6Missense obs/exp: 752 / 781.3Syn Z: -2.18

ClinVar Variant Classifications

382 submitted variants in ClinVar

Classification Summary

Pathogenic84
Likely Pathogenic20
VUS203
Likely Benign51
Benign19
Conflicting5
84
Pathogenic
20
Likely Pathogenic
203
VUS
51
Likely Benign
19
Benign
5
Conflicting

Curated Variants Distribution

Classified variants from ClinVar · 5 ACMG categories

ClassificationLoFMissense + InframeNon-codingSynonymousTotal
Pathogenic
17
8
59
0
84
Likely Pathogenic
7
2
11
0
20
VUS
4
176
21
2
203
Likely Benign
0
18
7
26
51
Benign
0
7
6
6
19
Conflicting
5
Total2821110434382

LoF = frameshift, stop gained/lost, canonical splice · Counts from ClinVar esearch · Updated hourly

View in ClinVar →

Protein Context — Lollipop Plot

DCC · protein map & ClinVar variants

Showing all ClinVar variants across the protein. Search a specific variant to highlight its position.

Gene2Phenotype Curations

DCC-related midline-bridging neuronal commissure disruption, horizontal gaze palsy, scoliosis, and intellectual disability

strong
ARLoss Of FunctionAbsent Gene Product
Dev. Disorders
G2P ↗

Gene2Phenotype curations · DECIPHER consortium patient cohort (public variants) · deciphergenomics.org

OMIM — Genotype-Phenotype Relationships

1 OMIM entry

Colorectal cancer, somatic

MIM #114500

Molecular basis of disorder known

Esophageal carcinoma, somatic

MIM #133239

Molecular basis of disorder known

Gaze palsy, familial horizontal, with progressive scoliosis, 2

MIM #617542

Molecular basis of disorder known

Autosomal recessive

Mirror movements 1 and/or agenesis of the corpus callosum

MIM #157600

Molecular basis of disorder known

Autosomal dominant
📖
GeneReview available — DCC
Authoritative clinical overview · NCBI Bookshelf · Recommended first read
Open GeneReview ↗
Clinical Literature
Landmark / reviewRecent case evidence