LRRC3

protein-coding

leucine rich repeat containing 3

Gene summary

Predicted to be located in membrane. Predicted to be active in plasma membrane. [provided by Alliance of Genome Resources, Jul 2025]

Previous symbols:
  • C21orf102
  • LRRC3DN
  • C21orf30

MANE transcript

NM_030891.6

Inheritance

—

ClinVar variants

U:61B:5

Top phenotype

—

gnomAD constraint

pLI —, LoF o/e 0.83

Max pathogenic AF

—

Genomic locus

chr21:44,455,510-44,462,196

External References & Databases

Transcript & Mutation Effects

hg38 • Region Span ~6.7 kb
Loading mutation effect viewer...

GenCC Phenotypes & Disease Associations

Curated gene-disease validity assertions and inheritance patterns

No GenCC data available for this gene.

ClinVar Associated Diseases & Phenotypes

Reported disease conditions connected to LRRC3 variants in ClinVar

1 Conditions Cataloged
not specifiedTotal: 65

ClinVar Variants & Pathogenicity by Type

Statistics based on transcript NM_030891.6. Only rare variants are included.

We include only reliable ClinVar variants with their consequences to MANE Select, MANE Plus Clinical transcripts, or transcripts with TSL equal to 1. Click a count to filter the variants table below.

Slight differences between displayed counts and ClinVar may occur due to a different transcript/consequence chosen by our variant effect predictor, or because we classify Benign/Likely benign as Likely benign and Pathogenic/Likely pathogenic as Likely pathogenic.

EffectPLPVUSLBBSum
synonymous
1
clinvar
1
missense
60
clinvar
5
clinvar
65
nonsense
0
start loss
0
frameshift
0
splice donor/acceptor (+/-2bp)
0
Total00615066
Loading ClinVar variants...

Transcript Catalog

Annotated transcript isoforms across RefSeq and Ensembl databases

Showing 4 of 7 transcripts
Transcript IDSourceProtein IDCoding ExonsMANE Status
NM_030891.6RefSeqNP_112153.11MANE Select
ENST00000291592.6EnsemblENSP00000291592.41MANE Select
ENST00000885220.1EnsemblENSP00000555279.11Standard
ENST00000885220.2EnsemblENSP00000555279.11Standard

Gene Ontology (GO) Annotations & Pathways

Biological processes, molecular functions, cellular components and pathways

Molecular Function

  • protein binding

Cellular Component

  • integral component of membrane

gnomAD Constraint

Source: gnomAD

Gene type
protein_coding
Transcript type
protein_coding
Transcript
ENST00000291592
Coding exons
1
Length
3371
Individuals with no LoFs
125677
Homozygous LoFs
0
Heterozygous LoFs
19
Defined
125696
p
0.0000756
Z-ScoreObservedExpectedObserved/ExpectedMutation RateTotal Possible
Missense0.2581691790.9460.00001231639
Missense (PolyPhen)4454.1350.81278567
Synonymous-0.4409084.81.060.00000614575
Loss of Function0.34944.830.8292.07e-751

Population LoF Frequency

PopulationCAFp-valueStatus
African0.000370.00037rare
Latino/Admixed American00.0absent
Ashkenazi Jewish00.0absent
East Asian0.0000550.000054rare
Finnish0.0000490.000046rare
European (Non-Finnish)0.0000980.000097rare
South Asian00.0absent
Other00.0absent

dbNSFP Gene Annotations

Source: dbNSFP

Recessive Scores

pRec
0.123

Intolerance Scores

LoFtool
0.309
RVIS EVS
0.13
RVIS percentile EVS
63.36

Essentials

Essential (CRISPR)
N
Essential (CRISPR2)
N
Essential (gene trap)
N
Indispensability pred.
N
Indispensability score
0.229

Gene Damage Prediction

AllRecessiveDominant
MendelianMediumMediumMedium
Primary ImmunodeficiencyMediumMediumMedium
CancerMediumMediumMedium
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