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Aliases for CD28 Gene

Aliases for CD28 Gene

  • CD28 Molecule 2 3 5
  • CD28 Antigen 3 4
  • Tp44 3 4
  • T-Cell-Specific Surface Glycoprotein 2
  • CD28 Antigen (Tp44) 2

External Ids for CD28 Gene

Previous GeneCards Identifiers for CD28 Gene

  • GC02P202788
  • GC02P203295
  • GC02P204535
  • GC02P204773
  • GC02P204396
  • GC02P204279
  • GC02P196418

Summaries for CD28 Gene

Entrez Gene Summary for CD28 Gene

  • The protein encoded by this gene is essential for T-cell proliferation and survival, cytokine production, and T-helper type-2 development. Several alternatively spliced transcript variants encoding different isoforms have been found for this gene.[provided by RefSeq, Jul 2011]

GeneCards Summary for CD28 Gene

CD28 (CD28 Molecule) is a Protein Coding gene. Diseases associated with CD28 include Sezary's Disease and Classic Mycosis Fungoides. Among its related pathways are CTLA4 Signaling and Th17 Differentiation Pathway. GO annotations related to this gene include identical protein binding and SH3/SH2 adaptor activity. An important paralog of this gene is CTLA4.

UniProtKB/Swiss-Prot for CD28 Gene

  • Involved in T-cell activation, the induction of cell proliferation and cytokine production and promotion of T-cell survival.

Gene Wiki entry for CD28 Gene

No data available for Tocris Summary , PharmGKB "VIP" Summary , fRNAdb sequence ontologies and piRNA Summary for CD28 Gene

Genomics for CD28 Gene

Regulatory Elements for CD28 Gene

Enhancers for CD28 Gene
GeneHancer Identifier Score Enhancer Sources TSS distance (kb) Number of Genes Away Size (kb) Transcription Factor Binding Sites within enhancer Other Gene Targets for Enhancer

Enhancers around CD28 on UCSC Golden Path with GeneCards custom track

Genomic Location for CD28 Gene

203,706,475 bp from pter
203,738,912 bp from pter
32,438 bases
Plus strand

Genomic View for CD28 Gene

Genes around CD28 on UCSC Golden Path with GeneCards custom track

Cytogenetic band:
CD28 Gene in genomic location: bands according to Ensembl, locations according to GeneLoc (and/or Entrez Gene and/or Ensembl if different)
Genomic Location for CD28 Gene
GeneLoc Logo Genomic Neighborhood Exon StructureGene Density

RefSeq DNA sequence for CD28 Gene

Proteins for CD28 Gene

  • Protein details for CD28 Gene (UniProtKB/Swiss-Prot)

    Protein Symbol:
    Recommended name:
    T-cell-specific surface glycoprotein CD28
    Protein Accession:
    Secondary Accessions:
    • A8KAC1
    • Q13964
    • Q52M23
    • Q70WG0
    • Q8NI54
    • Q8NI55
    • Q8NI56
    • Q8WXJ2
    • Q9BYV0

    Protein attributes for CD28 Gene

    220 amino acids
    Molecular mass:
    25066 Da
    Quaternary structure:
    • Homodimer; disulfide-linked. Interacts with DUSP14. Binds to CD80/B7-1 and CD86/B7-2/B70. Interacts with GRB2.

    Three dimensional structures from OCA and Proteopedia for CD28 Gene

    Alternative splice isoforms for CD28 Gene

neXtProt entry for CD28 Gene

Proteomics data for CD28 Gene at MOPED

Post-translational modifications for CD28 Gene

  • Glycosylation at Asn 37, Asn 71, Asn 92, Asn 105, and Asn 129
  • Modification sites at PhosphoSitePlus

Other Protein References for CD28 Gene

Antibody Products

  • Abcam antibodies for CD28

No data available for DME Specific Peptides for CD28 Gene

Domains & Families for CD28 Gene

Gene Families for CD28 Gene

Protein Domains for CD28 Gene

Suggested Antigen Peptide Sequences for CD28 Gene

GenScript: Design optimal peptide antigens:

Graphical View of Domain Structure for InterPro Entry



  • Contains 1 Ig-like V-type (immunoglobulin-like) domain.
  • Contains 1 Ig-like V-type (immunoglobulin-like) domain.
genes like me logo Genes that share domains with CD28: view

Function for CD28 Gene

Molecular function for CD28 Gene

GENATLAS Biochemistry:
cell differentiation antigen CD28 (Tp44),44kDa,identified by monoclonal antibody 9.3,KOLT2,expressed in T lymphocyte,CD80,CD86 ligand,stimulating PDE7 for T cell activation,regulated by CBLB
UniProtKB/Swiss-Prot Function:
Involved in T-cell activation, the induction of cell proliferation and cytokine production and promotion of T-cell survival.
genes like me logo Genes that share phenotypes with CD28: view

Animal Models for CD28 Gene

MGI Knock Outs for CD28:

Animal Model Products

  • Taconic Biosciences Mouse Models for CD28

No data available for Enzyme Numbers (IUBMB) , Gene Ontology (GO) - Molecular Function , Human Phenotype Ontology , Transcription Factor Targets and HOMER Transcription for CD28 Gene

Localization for CD28 Gene

Subcellular locations from UniProtKB/Swiss-Prot for CD28 Gene

Membrane; Single-pass type I membrane protein.

Subcellular locations from

Jensen Localization Image for CD28 Gene COMPARTMENTS Subcellular localization image for CD28 gene
Compartment Confidence
cytosol 5
plasma membrane 5

No data available for Gene Ontology (GO) - Cellular Components for CD28 Gene

Pathways & Interactions for CD28 Gene

SuperPathways for CD28 Gene

Superpath Contained pathways
1 Interleukin-3, 5 and GM-CSF signaling
2 PI3K events in ERBB4 signaling
3 Allograft rejection
4 CD28 co-stimulation
5 Infectious disease
genes like me logo Genes that share pathways with CD28: view

SIGNOR curated interactions for CD28 Gene

Is activated by:

Gene Ontology (GO) - Biological Process for CD28 Gene

GO ID Qualified GO term Evidence PubMed IDs
GO:0002863 positive regulation of inflammatory response to antigenic stimulus IEA --
GO:0007166 cell surface receptor signaling pathway TAS 9784967
GO:0007173 epidermal growth factor receptor signaling pathway TAS --
GO:0008543 fibroblast growth factor receptor signaling pathway TAS --
GO:0010628 positive regulation of gene expression IMP 23817958
genes like me logo Genes that share ontologies with CD28: view

Drugs & Compounds for CD28 Gene

(17) Drugs for CD28 Gene - From: DGIdb and Novoseek

Name Status Disease Links Group Role Mechanism of Action Clinical Trials
TGN 1412 Pharma 0

(16) Additional Compounds for CD28 Gene - From: Novoseek

Name Synonyms Role CAS Number PubChem IDs PubMed IDs
genes like me logo Genes that share compounds with CD28: view

Transcripts for CD28 Gene

Unigene Clusters for CD28 Gene

CD28 molecule:
Representative Sequences:

Alternative Splicing Database (ASD) splice patterns (SP) for CD28 Gene

ExUns: 1a · 1b · 1c · 1d · 1e ^ 2a · 2b · 2c ^ 3 ^ 4a · 4b · 4c
SP1: - -
SP2: -
SP3: - -

Relevant External Links for CD28 Gene

GeneLoc Exon Structure for
ECgene alternative splicing isoforms for

Expression for CD28 Gene

mRNA expression in normal human tissues for CD28 Gene

mRNA expression in embryonic tissues and stem cells from LifeMap Discovery

mRNA differential expression in normal tissues according to GTEx for CD28 Gene

This gene is overexpressed in Whole Blood (x11.4).

Protein differential expression in normal tissues from HIPED for CD28 Gene

This gene is overexpressed in CD8 Tcells (48.9) and CD4 Tcells (17.2).

Integrated Proteomics: protein expression in normal tissues and cell lines from ProteomicsDB, PaxDb, MOPED, and MaxQB for CD28 Gene

SOURCE GeneReport for Unigene cluster for CD28 Gene Hs.443123

mRNA Expression by UniProt/SwissProt for CD28 Gene

Tissue specificity: Expressed in T-cells and plasma cells, but not in less mature B-cells.
genes like me logo Genes that share expression patterns with CD28: view

Protein tissue co-expression partners for CD28 Gene

- Elite partner

Primer Products

Orthologs for CD28 Gene

This gene was present in the common ancestor of chordates.

Orthologs for CD28 Gene

Organism Taxonomy Gene Similarity Type Details
(Bos Taurus)
Mammalia CD28 35
  • 81.43 (n)
  • 78.08 (a)
CD28 36
  • 76 (a)
(Canis familiaris)
Mammalia CD28 35
  • 84.55 (n)
  • 79.55 (a)
CD28 36
  • 80 (a)
(Mus musculus)
Mammalia Cd28 35
  • 77.02 (n)
  • 69.9 (a)
Cd28 16
Cd28 36
  • 67 (a)
(Pan troglodytes)
Mammalia CD28 35
  • 99.7 (n)
  • 100 (a)
CD28 36
  • 100 (a)
(Rattus norvegicus)
Mammalia Cd28 35
  • 77.67 (n)
  • 71.36 (a)
(Monodelphis domestica)
Mammalia CD28 36
  • 52 (a)
(Ornithorhynchus anatinus)
Mammalia CD28 36
  • 56 (a)
(Gallus gallus)
Aves CD28 35
  • 62.32 (n)
  • 51.69 (a)
CD28 36
  • 50 (a)
(Anolis carolinensis)
Reptilia CD28 36
  • 31 (a)
tropical clawed frog
(Silurana tropicalis)
Amphibia cd28 35
  • 49.78 (n)
  • 43.51 (a)
Species with no ortholog for CD28:
  • 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)
  • zebrafish (Danio rerio)

Evolution for CD28 Gene

Gene Tree for CD28 (if available)
Gene Tree for CD28 (if available)

Paralogs for CD28 Gene

Paralogs for CD28 Gene

genes like me logo Genes that share paralogs with CD28: view

Variants for CD28 Gene

Sequence variations from dbSNP and Humsavar for CD28 Gene

SNP ID Clin Chr 02 pos Sequence Context AA Info Type
rs1879877 -- 203,705,277(-) CTTTG(A/C)AGAGA upstream-variant-2KB
rs2013278 -- 203,725,935(-) CACCA(A/T)GCCCA intron-variant
rs3115964 -- 203,714,789(+) AATTA(G/T)AAACC intron-variant
rs3115965 -- 203,724,144(+) catat(C/T)gtatg intron-variant
rs3115966 -- 203,725,612(+) AAAGA(A/T)TGAAC intron-variant

Variation tolerance for CD28 Gene

Residual Variation Intolerance Score: 62.3% of all genes are more intolerant (likely to be disease-causing)
Gene Damage Index Score: 0.45; 9.87% of all genes are more intolerant (likely to be disease-causing)

No data available for Polymorphic Variants from UniProtKB/Swiss-Prot , Structural Variations from Database of Genomic Variants (DGV) and Relevant External Links for CD28 Gene

Disorders for CD28 Gene

MalaCards: The human disease database

(5) MalaCards diseases for CD28 Gene - From: Orphanet, DISEASES, Novoseek, and GeneCards

Disorder Aliases PubMed IDs
sezary's disease
  • sezary disease
classic mycosis fungoides
  • mycosis fungoides, alibert-bazin type
rheumatoid arthritis
  • rheumatoid arthritis, progression of
common variable immunodeficiency
  • acquired agammaglobulinemia
systemic lupus erythematosus
  • lupus nephritis
- elite association - COSMIC cancer census association via MalaCards
Search CD28 in MalaCards View complete list of genes associated with diseases

Relevant External Links for CD28

Genetic Association Database (GAD)
Human Genome Epidemiology (HuGE) Navigator
Atlas of Genetics and Cytogenetics in Oncology and Haematology:
genes like me logo Genes that share disorders with CD28: view

No data available for UniProtKB/Swiss-Prot and Genatlas for CD28 Gene

Publications for CD28 Gene

  1. A novel costimulatory signaling in human T lymphocytes by a splice variant of CD28. (PMID: 11877290) Hanawa H. … Ochi A. (Blood 2002) 3 4 23 67
  2. CD28 down-regulation on circulating CD4 T-cells is associated with poor prognoses of patients with idiopathic pulmonary fibrosis. (PMID: 20126467) Gilani S.R. … Duncan S.R. (PLoS ONE 2010) 3 23
  3. Altered CD28 and CD95 mRNA expression in peripheral blood mononuclear cells from elderly patients with primary non-small cell lung cancer. (PMID: 20137575) Wang L. … Zhang X.G. (Chin. Med. J. 2010) 3 23
  4. p85beta phosphoinositide 3-kinase regulates CD28 coreceptor function. (PMID: 19190244) AlcA!zar I. … Carrera A.C. (Blood 2009) 3 23
  5. 4-1BBL costimulation retrieves CD28 expression in activated T cells. (PMID: 19217084) Habib-Agahi M. … Searle P.F. (Cell. Immunol. 2009) 3 23

Products for CD28 Gene

Sources for CD28 Gene