TLCD3B

protein-coding

TLC domain containing 3B, the group of TLC domain containing

Gene summary

This gene encodes a transmembrane protein, which may be a likely target of peroxisome proliferator-activated receptor gamma (PPAR-gamma). The product of the orthologous gene in mouse is related to obesity. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Jan 2016]

Previous symbols:
  • FAM57B

MANE transcript

NM_031478.6

Inheritance

AD, AR

ClinVar variants

P:2U:26B:5

Top phenotype

Cone-rod dystrophy 22

gnomAD constraint

pLI —, LoF o/e 0.16

Max pathogenic AF

—

Genomic locus

chr16:30,024,427-30,052,978

External References & Databases

Transcript & Mutation Effects

hg38 • Region Span ~28.6 kb
Loading mutation effect viewer...

GenCC Phenotypes & Disease Associations

Curated gene-disease validity assertions and inheritance patterns

cone-rod dystrophySUPPORTIVE

Inheritance Pattern: AD

Disease ID:MONDO:0015993

Submitter: Orphanet

cone-rod dystrophy 22STRONG

Inheritance Pattern: AR

Disease ID:MONDO:0030440

Submitter: PanelApp Australia

Clinical Genomic Database (CGD)

Cone-rod dystrophy 22AR

Manifestation: Ophthalmologic

Intervention: General

Rationale: Genetic knowledge may be beneficial related to issues such as selection of optimal supportive care, informed medical decision-making, prognostic considerations, and avoidance of unnecessary testing

Refs: 33077892Source: CGD (NHGRI)

ClinVar Associated Diseases & Phenotypes

Reported disease conditions connected to TLCD3B variants in ClinVar

3 Conditions Cataloged
not specifiedTotal: 27
not providedTotal: 3
Cone-rod dystrophy 22Total: 3

ClinVar Variants & Pathogenicity by Type

Statistics based on transcript NM_031478.6. 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
3
clinvar
3
missense
1
clinvar
24
clinvar
2
clinvar
27
nonsense
0
start loss
0
frameshift
1
clinvar
1
clinvar
2
splice donor/acceptor (+/-2bp)
1
clinvar
1
Total20265033

Highest pathogenic variant AF is 0.0000061962783

Loading ClinVar variants...

Transcript Catalog

Annotated transcript isoforms across RefSeq and Ensembl databases

Showing 4 of 22 transcripts
Transcript IDSourceProtein IDCoding ExonsMANE Status
NM_031478.6RefSeqNP_113666.25MANE Select
ENST00000380495.9EnsemblENSP00000369863.45MANE Select
NM_001318504.2RefSeqNP_001305433.14Standard
NM_001352173.2RefSeqNP_001339102.16Standard

Model Organisms & Knockout Phenotypes

Observed phenotypic effects in mouse and zebrafish models

Gene / ModelOrganismObserved Phenotype
fam57baDanio rerio

Structure: pigment cell

Quality: decreased amount

abnormal

Gene Ontology (GO) Annotations & Pathways

Biological processes, molecular functions, cellular components and pathways

Biological Process

  • negative regulation of fat cell differentiation
  • ceramide biosynthetic process

Molecular Function

  • sphingosine N-acyltransferase activity

Cellular Component

  • Golgi membrane
  • endoplasmic reticulum
  • endoplasmic reticulum membrane
  • integral component of membrane

gnomAD Constraint

Source: gnomAD

Gene type
protein_coding
Transcript type
protein_coding
Transcript
ENST00000380495
Coding exons
5
Length
28552
Individuals with no LoFs
125723
Homozygous LoFs
0
Heterozygous LoFs
7
Defined
125730
p
0.0000278
Z-ScoreObservedExpectedObserved/ExpectedMutation RateTotal Possible
Missense1.181171590.7360.000009541744
Missense (PolyPhen)3763.3930.58366737
Synonymous-0.01017574.91.000.00000522574
Loss of Function2.71212.20.1646.07e-7124

Population LoF Frequency

PopulationCAFp-valueStatus
African00.0absent
Latino/Admixed American00.0absent
Ashkenazi Jewish00.0absent
East Asian00.0absent
Finnish00.0absent
European (Non-Finnish)0.0000530.000053rare
South Asian0.0000330.000033rare
Other00.0absent

dbNSFP Gene Annotations

Source: dbNSFP

Function
FUNCTION: Involved in ceramide synthesis. {ECO:0000250}.;

Intolerance Scores

LoFtool
0.339
RVIS EVS
-0.41
RVIS percentile EVS
26.23

Essentials

Essential (CRISPR)
N
Essential (CRISPR2)
N
Essential (gene trap)
N
Indispensability pred.
N
Indispensability score
0.0995

Gene Damage Prediction

AllRecessiveDominant
MendelianMediumMediumMedium
Primary ImmunodeficiencyMediumMediumMedium
CancerMediumMediumMedium
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