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Aliases for C18orf21 Gene

Aliases for C18orf21 Gene

  • Chromosome 18 Open Reading Frame 21 2 3 5
  • HBV X-Transactivated Gene 13 Protein 3 4
  • HBV XAg-Transactivated Protein 13 3 4
  • XTP13 3 4
  • HBV X-Transactivated Protein 13 3
  • UPF0711 Protein C18orf21 3
  • PNAS-124 3
  • PNAS-131 3
  • HsT3108 3

External Ids for C18orf21 Gene

Previous GeneCards Identifiers for C18orf21 Gene

  • GC18P031805
  • GC18P031806
  • GC18P033552
  • GC18P030411

Summaries for C18orf21 Gene

GeneCards Summary for C18orf21 Gene

C18orf21 (Chromosome 18 Open Reading Frame 21) is a Protein Coding gene.

No data available for Entrez Gene Summary , UniProtKB/Swiss-Prot , Tocris Summary , Gene Wiki entry , PharmGKB "VIP" Summary , fRNAdb sequence ontologies and piRNA Summary for C18orf21 Gene

Genomics for C18orf21 Gene

Regulatory Elements for C18orf21 Gene

Enhancers for C18orf21 Gene
GeneHancer Identifier Enhancer Score Enhancer Sources Gene-Enhancer Score TSS distance (kb) Number of Genes Away Size (kb) Transcription Factor Binding Sites within enhancer Gene Targets for Enhancer
GH18F035949 1.1 Ensembl ENCODE 11.7 -21.9 -21895 1.6 CTCF KLF1 ZNF223 MAX ZNF384 RAD21 GLIS2 ZBTB48 POLR2A PATZ1 LOC105372066 C18orf21 RPRD1A GC18P035965 MIR3929
GH18F035967 1.1 ENCODE 11.1 -1.2 -1225 5.8 PKNOX1 MLX WRNIP1 ARID4B SIN3A DMAP1 YY1 SLC30A9 CBX5 ZNF143 C18orf21 LOC105372066 ELP2 RPRD1A GC18P035965
GH18F035495 1.2 ENCODE 10.1 -475.0 -475038 3.1 CREB3L1 MLX FEZF1 DMAP1 YY1 SLC30A9 ZNF416 ZNF143 SP3 TBX21 ENSG00000268573 ZNF397 ZNF396 ENSG00000267583 C18orf21 ELP2 INO80C ENSG00000267140 ENSG00000279074
GH18F036075 1.2 Ensembl ENCODE 10 +104.0 104023 1.3 ELF3 FOS THAP11 SMARCC1 CEBPB KAT8 TGIF2 ZNF589 ATF4 KLF16 RPRD1A MOCOS FHOD3 C18orf21 GC18P036078
GH18F036065 1.1 ENCODE 10.2 +94.7 94664 2.9 HDGF PKNOX1 MLX ARID4B SIN3A FEZF1 DMAP1 YY1 ZNF143 FOS RPRD1A C18orf21 LOC105372066 GC18M035972
- Elite enhancer and/or Elite enhancer-gene association Download GeneHancer data dump

Enhancers around C18orf21 on UCSC Golden Path with GeneCards custom track

Promoters for C18orf21 Gene
Ensembl Regulatory Elements (ENSRs) TSS Distance (bp) Size (bp) Binding Sites for Transcription Factors within promoters
ENSR00000001076 517 2401 PKNOX1 MLX WRNIP1 ARID4B SIN3A DMAP1 YY1 SLC30A9 CBX5 ZNF143
ENSR00001812586 -1683 401 ATF3 TCF7 MLLT1 SPI1

Genomic Location for C18orf21 Gene

35,972,083 bp from pter
35,979,287 bp from pter
7,205 bases
Plus strand

Genomic View for C18orf21 Gene

Genes around C18orf21 on UCSC Golden Path with GeneCards custom track

Cytogenetic band:
C18orf21 Gene in genomic location: bands according to Ensembl, locations according to GeneLoc (and/or Entrez Gene and/or Ensembl if different)
Genomic Location for C18orf21 Gene
GeneLoc Logo Genomic Neighborhood Exon StructureGene Density

RefSeq DNA sequence for C18orf21 Gene

Proteins for C18orf21 Gene

  • Protein details for C18orf21 Gene (UniProtKB/Swiss-Prot)

    Protein Symbol:
    Recommended name:
    UPF0711 protein C18orf21
    Protein Accession:
    Secondary Accessions:
    • Q6GW03
    • Q9BXV6
    • Q9BXW2

    Protein attributes for C18orf21 Gene

    220 amino acids
    Molecular mass:
    24827 Da
    Quaternary structure:
    No Data Available
    • Sequence=AAK07541.1; Type=Erroneous initiation; Evidence={ECO:0000305}; Sequence=AAK07547.1; Type=Frameshift; Positions=216; Evidence={ECO:0000305};

    Alternative splice isoforms for C18orf21 Gene


neXtProt entry for C18orf21 Gene

Post-translational modifications for C18orf21 Gene

  • Modification sites at PhosphoSitePlus
  • Modification sites at neXtProt

No data available for DME Specific Peptides for C18orf21 Gene

Domains & Families for C18orf21 Gene

Protein Domains for C18orf21 Gene


Suggested Antigen Peptide Sequences for C18orf21 Gene

Graphical View of Domain Structure for InterPro Entry



  • Belongs to the UPF0711 family.
  • Belongs to the UPF0711 family.
genes like me logo Genes that share domains with C18orf21: view

No data available for Gene Families for C18orf21 Gene

Function for C18orf21 Gene

Phenotypes for C18orf21 Gene

GenomeRNAi human phenotypes for C18orf21:
genes like me logo Genes that share phenotypes with C18orf21: view

Animal Model Products

miRNA for C18orf21 Gene

miRTarBase miRNAs that target C18orf21

Inhibitory RNA Products

Clone Products

Flow Cytometry Products

No data available for Molecular function , Enzyme Numbers (IUBMB) , Gene Ontology (GO) - Molecular Function , Human Phenotype Ontology , Animal Models , Transcription Factor Targets and HOMER Transcription for C18orf21 Gene

Localization for C18orf21 Gene

Subcellular locations from

Extracellular space Cytosol Plasma membrane Cytoskeleton Lysosome Endosome Peroxisome ER Golgi Apparatus Nucleus Mitochondrion 0 1 2 3 4 5 Confidence
COMPARTMENTS Subcellular localization image for C18orf21 gene
Compartment Confidence
nucleus 2
extracellular 1
mitochondrion 1
golgi apparatus 1

No data available for Subcellular locations from UniProtKB/Swiss-Prot and Gene Ontology (GO) - Cellular Components for C18orf21 Gene

Pathways & Interactions for C18orf21 Gene

SuperPathways for C18orf21 Gene

No Data Available

Interacting Proteins for C18orf21 Gene

STRING Interaction Network Preview (showing 1 interactants - click image to see details)
Selected Interacting proteins: ENSP00000465517 Q32NC0-CR021_HUMAN for C18orf21 Gene via STRING IID

Gene Ontology (GO) - Biological Process for C18orf21 Gene


No data available for Pathways by source and SIGNOR curated interactions for C18orf21 Gene

Transcripts for C18orf21 Gene

Unigene Clusters for C18orf21 Gene

Chromosome 18 open reading frame 21:
Representative Sequences:

Inhibitory RNA Products

Clone Products

Flow Cytometry Products

Alternative Splicing Database (ASD) splice patterns (SP) for C18orf21 Gene

ExUns: 1a · 1b ^ 2a · 2b ^ 3 ^ 4 ^ 5 ^ 6a · 6b · 6c · 6d
SP1: - - -
SP2: - -
SP4: -
SP5: -

Relevant External Links for C18orf21 Gene

GeneLoc Exon Structure for
ECgene alternative splicing isoforms for

Expression for C18orf21 Gene

mRNA expression in normal human tissues from GTEx, Illumina, BioGPS, and SAGE for C18orf21 Gene

Protein differential expression in normal tissues from HIPED for C18orf21 Gene

This gene is overexpressed in Lung (40.0) and Peripheral blood mononuclear cells (20.0).

Integrated Proteomics: protein expression in normal tissues and cell lines from ProteomicsDB, MaxQB, and MOPED for C18orf21 Gene

Protein tissue co-expression partners for C18orf21 Gene

NURSA nuclear receptor signaling pathways regulating expression of C18orf21 Gene:


SOURCE GeneReport for Unigene cluster for C18orf21 Gene:

genes like me logo Genes that share expression patterns with C18orf21: view

Primer Products

No data available for mRNA expression in embryonic tissues and stem cells from LifeMap Discovery , mRNA differential expression in normal tissues and mRNA Expression by UniProt/SwissProt for C18orf21 Gene

Orthologs for C18orf21 Gene

This gene was present in the common ancestor of chordates.

Orthologs for C18orf21 Gene

Organism Taxonomy Gene Similarity Type Details
(Pan troglodytes)
Mammalia C18H18orf21 34
  • 99.69 (n)
C18ORF21 35
  • 99 (a)
(Bos Taurus)
Mammalia C24H18orf21 34
  • 88.73 (n)
C18orf21 35
  • 85 (a)
(Canis familiaris)
Mammalia C7H18orf21 34
  • 87.48 (n)
C18orf21 35
  • 84 (a)
(Mus musculus)
Mammalia 2700062C07Rik 34 35
  • 79.28 (n)
Gm9182 16
(Rattus norvegicus)
Mammalia MGC116121 34
  • 79.28 (n)
(Monodelphis domestica)
Mammalia -- 35
  • 52 (a)
-- 35
  • 51 (a)
(Ornithorhynchus anatinus)
Mammalia C18orf21 35
  • 49 (a)
(Gallus gallus)
Aves C18ORF21 34
  • 60.79 (n)
C18orf21 35
  • 48 (a)
(Anolis carolinensis)
Reptilia C18orf21 35
  • 40 (a)
tropical clawed frog
(Silurana tropicalis)
Amphibia c18orf21 34
  • 54.07 (n)
(Danio rerio)
Actinopterygii si:dkey-184p18.2 34
  • 46.14 (n)
C19H18orf21 (1 of 2) 35
  • 33 (a)
C19H18orf21 (2 of 2) 35
  • 33 (a)
Species where no ortholog for C18orf21 was found in the sources mined by GeneCards:
  • A. gosspyii yeast (Ashbya gossypii)
  • Actinobacteria (Mycobacterium tuberculosis)
  • African clawed frog (Xenopus laevis)
  • African malaria mosquito (Anopheles gambiae)
  • Alicante grape (Vitis vinifera)
  • alpha proteobacteria (Wolbachia pipientis)
  • amoeba (Dictyostelium discoideum)
  • Archea (Pyrococcus horikoshii)
  • baker's yeast (Saccharomyces cerevisiae)
  • barley (Hordeum vulgare)
  • beta proteobacteria (Neisseria meningitidis)
  • bread mold (Neurospora crassa)
  • Chromalveolata (Phytophthora infestans)
  • common water flea (Daphnia pulex)
  • corn (Zea mays)
  • E. coli (Escherichia coli)
  • filamentous fungi (Aspergillus nidulans)
  • Firmicute bacteria (Streptococcus pneumoniae)
  • fission yeast (Schizosaccharomyces pombe)
  • fruit fly (Drosophila melanogaster)
  • green algae (Chlamydomonas reinhardtii)
  • honey bee (Apis mellifera)
  • K. lactis yeast (Kluyveromyces lactis)
  • loblloly pine (Pinus taeda)
  • malaria parasite (Plasmodium falciparum)
  • medicago trunc (Medicago Truncatula)
  • moss (Physcomitrella patens)
  • orangutan (Pongo pygmaeus)
  • pig (Sus scrofa)
  • rainbow trout (Oncorhynchus mykiss)
  • rice (Oryza sativa)
  • rice blast fungus (Magnaporthe grisea)
  • schistosome parasite (Schistosoma mansoni)
  • sea anemone (Nematostella vectensis)
  • sea squirt (Ciona intestinalis)
  • sea squirt (Ciona savignyi)
  • sea urchin (Strongylocentrotus purpuratus)
  • sorghum (Sorghum bicolor)
  • soybean (Glycine max)
  • stem rust fungus (Puccinia graminis)
  • sugarcane (Saccharum officinarum)
  • thale cress (Arabidopsis thaliana)
  • tomato (Lycopersicon esculentum)
  • toxoplasmosis (Toxoplasma gondii)
  • Trichoplax (Trichoplax adhaerens)
  • wheat (Triticum aestivum)
  • worm (Caenorhabditis elegans)

Evolution for C18orf21 Gene

Gene Tree for C18orf21 (if available)
Gene Tree for C18orf21 (if available)

Paralogs for C18orf21 Gene Pseudogenes for C18orf21 Gene

genes like me logo Genes that share paralogs with C18orf21: view

No data available for Paralogs for C18orf21 Gene

Variants for C18orf21 Gene

Sequence variations from dbSNP and Humsavar for C18orf21 Gene

SNP ID Clin Chr 18 pos Sequence Context AA Info Type
rs111803120 -- 35,977,956(+) CTTTC(C/T)GGACA intron-variant
rs112012390 -- 35,975,273(+) GCTTA(-/C)TTTTA intron-variant
rs112596114 -- 35,973,481(+) AACAA(-/G)ATCCT intron-variant, upstream-variant-2KB
rs112875929 -- 35,971,661(+) CTACT(C/T)TTAGG intron-variant, upstream-variant-2KB
rs112987253 -- 35,971,068(+) GGATC(A/G)CTTGA intron-variant, upstream-variant-2KB

Structural Variations from Database of Genomic Variants (DGV) for C18orf21 Gene

Variant ID Type Subtype PubMed ID
nsv1065113 CNV loss 25217958

Variation tolerance for C18orf21 Gene

Residual Variation Intolerance Score: 67.3% of all genes are more intolerant (likely to be disease-causing)
Gene Damage Index Score: 1.24; 24.75% of all genes are more intolerant (likely to be disease-causing)

Relevant External Links for C18orf21 Gene

SNPedia medical, phenotypic, and genealogical associations of SNPs for

No data available for Polymorphic Variants from UniProtKB/Swiss-Prot for C18orf21 Gene

Disorders for C18orf21 Gene

Relevant External Links for C18orf21

Atlas of Genetics and Cytogenetics in Oncology and Haematology:

No disorders were found for C18orf21 Gene.

No data available for MalaCards , UniProtKB/Swiss-Prot and Genatlas for C18orf21 Gene

Publications for C18orf21 Gene

  1. The status, quality, and expansion of the NIH full-length cDNA project: the Mammalian Gene Collection (MGC). (PMID: 15489334) Gerhard D.S. … Malek J. (Genome Res. 2004) 3 4 64
  2. Generation and initial analysis of more than 15,000 full-length human and mouse cDNA sequences. (PMID: 12477932) Strausberg R.L. … Marra M.A. (Proc. Natl. Acad. Sci. U.S.A. 2002) 2 3 64
  3. The BioPlex Network: A Systematic Exploration of the Human Interactome. (PMID: 26186194) Huttlin E.L. … Gygi S.P. (Cell 2015) 3 64
  4. A human interactome in three quantitative dimensions organized by stoichiometries and abundances. (PMID: 26496610) Hein M.Y. … Mann M. (Cell 2015) 3 64
  5. Genome wide analysis of drug-induced torsades de pointes: lack of common variants with large effect sizes. (PMID: 24223155) Behr E.R. … Roden D.M. (PLoS ONE 2013) 3 64

Products for C18orf21 Gene

Sources for C18orf21 Gene

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