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Aliases for CD22 Gene

Aliases for CD22 Gene

  • CD22 Molecule 2 3 5
  • CD22 Antigen 2 3 4
  • Sialic Acid Binding Ig-Like Lectin 2 2 3
  • Sialic Acid-Binding Ig-Like Lectin 2 3 4
  • B-Lymphocyte Cell Adhesion Molecule 3 4
  • T-Cell Surface Antigen Leu-14 3 4
  • SIGLEC-2 3 4
  • SIGLEC2 3 4
  • BL-CAM 3 4

External Ids for CD22 Gene

Previous GeneCards Identifiers for CD22 Gene

  • GC19U990008
  • GC19P036269
  • GC19P040498
  • GC19P040511
  • GC19P035820
  • GC19P032328
  • GC19P035826
  • GC19P035957

Summaries for CD22 Gene

GeneCards Summary for CD22 Gene

CD22 (CD22 Molecule) is a Protein Coding gene. Diseases associated with CD22 include Refractory Hematologic Cancer and Early Yaws. Among its related pathways are Immune System and B cell receptor signaling pathway (KEGG). GO annotations related to this gene include carbohydrate binding. An important paralog of this gene is SIGLEC1.

UniProtKB/Swiss-Prot for CD22 Gene

  • Mediates B-cell B-cell interactions. May be involved in the localization of B-cells in lymphoid tissues. Binds sialylated glycoproteins; one of which is CD45. Preferentially binds to alpha-2,6-linked sialic acid. The sialic acid recognition site can be masked by cis interactions with sialic acids on the same cell surface. Upon ligand induced tyrosine phosphorylation in the immune response seems to be involved in regulation of B-cell antigen receptor signaling. Plays a role in positive regulation through interaction with Src family tyrosine kinases and may also act as an inhibitory receptor by recruiting cytoplasmic phosphatases via their SH2 domains that block signal transduction through dephosphorylation of signaling molecules.

Gene Wiki entry for CD22 Gene

No data available for Entrez Gene Summary , Tocris Summary , PharmGKB "VIP" Summary , fRNAdb sequence ontologies and piRNA Summary for CD22 Gene

Genomics for CD22 Gene

Regulatory Elements for CD22 Gene

Enhancers for CD22 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 CD22 on UCSC Golden Path with GeneCards custom track

Promoters for CD22 Gene
Ensembl Regulatory Elements (ENSRs) TSS Distance (bp) Size (bp) Binding Sites for Transcription Factors within promoters

ENSRs around CD22 on UCSC Golden Path with GeneCards custom track

Genomic Location for CD22 Gene

Chromosome:
19
Start:
35,319,261 bp from pter
End:
35,347,361 bp from pter
Size:
28,101 bases
Orientation:
Plus strand

Genomic View for CD22 Gene

Genes around CD22 on UCSC Golden Path with GeneCards custom track

Cytogenetic band:
CD22 Gene in genomic location: bands according to Ensembl, locations according to GeneLoc (and/or Entrez Gene and/or Ensembl if different)
Genomic Location for CD22 Gene
GeneLoc Logo Genomic Neighborhood Exon StructureGene Density

RefSeq DNA sequence for CD22 Gene

Proteins for CD22 Gene

  • Protein details for CD22 Gene (UniProtKB/Swiss-Prot)

    Protein Symbol:
    P20273-CD22_HUMAN
    Recommended name:
    B-cell receptor CD22
    Protein Accession:
    P20273
    Secondary Accessions:
    • F5GYU4
    • F5H7U3
    • O95699
    • O95701
    • O95702
    • O95703
    • Q01665
    • Q32M46
    • Q92872
    • Q92873
    • Q9UQA6
    • Q9UQA7
    • Q9UQA8
    • Q9UQA9
    • Q9UQB0
    • Q9Y2A6

    Protein attributes for CD22 Gene

    Size:
    847 amino acids
    Molecular mass:
    95348 Da
    Quaternary structure:
    • Predominantly monomer of isoform CD22-beta. Also found as heterodimer of isoform CD22-beta and a shorter isoform. Interacts with PTPN6/SHP-1, LYN, SYK, PIK3R1/PIK3R2 and PLCG1 upon phosphorylation. Interacts with GRB2, INPP5D and SHC1 upon phosphorylation (By similarity). May form a complex with INPP5D/SHIP, GRB2 and SHC1.
    SequenceCaution:
    • Sequence=CAA36988.1; Type=Frameshift; Positions=806; Evidence={ECO:0000305};

    Alternative splice isoforms for CD22 Gene

    UniProtKB/Swiss-Prot:

neXtProt entry for CD22 Gene

Proteomics data for CD22 Gene at MOPED

Post-translational modifications for CD22 Gene

  • Phosphorylated on tyrosine residues by LYN.
  • Phosphorylation of Tyr-762, Tyr-807 and Tyr-822 are involved in binding to SYK, GRB2 and SYK, respectively. Phosphorylation of Tyr-842 is involved in binding to SYK, PLCG2 and PIK3R1/PIK3R2.
  • Glycosylation at Asn 67, Asn 101, Asn 112, Asn 135, Asn 164, Asn 231, Asn 363, Asn 445, Asn 479, Asn 574, and Asn 634
  • Modification sites at PhosphoSitePlus

No data available for DME Specific Peptides for CD22 Gene

Domains & Families for CD22 Gene

Graphical View of Domain Structure for InterPro Entry

P20273

UniProtKB/Swiss-Prot:

CD22_HUMAN :
  • Contains 4 copies of a cytoplasmic motif that is referred to as the immunoreceptor tyrosine-based inhibitor motif (ITIM). This motif is involved in modulation of cellular responses. The phosphorylated ITIM motif can bind the SH2 domain of several SH2-containing phosphatases.
  • Belongs to the immunoglobulin superfamily. SIGLEC (sialic acid binding Ig-like lectin) family.
Domain:
  • Contains 4 copies of a cytoplasmic motif that is referred to as the immunoreceptor tyrosine-based inhibitor motif (ITIM). This motif is involved in modulation of cellular responses. The phosphorylated ITIM motif can bind the SH2 domain of several SH2-containing phosphatases.
  • Contains 6 Ig-like C2-type (immunoglobulin-like) domains.
  • Contains 1 Ig-like V-type (immunoglobulin-like) domain.
Family:
  • Belongs to the immunoglobulin superfamily. SIGLEC (sialic acid binding Ig-like lectin) family.
genes like me logo Genes that share domains with CD22: view

Function for CD22 Gene

Molecular function for CD22 Gene

GENATLAS Biochemistry:
cell differentiation antigen CD22,glycoprotein,identified by monoclonal antibodies HD39,S-HCL1,TO15,specifically expressed in B cells,involved in the regulation of B cell activation sialoadhesin,Ig superfamily,potential susceptibility gene for autoimmune diseases
UniProtKB/Swiss-Prot Function:
Mediates B-cell B-cell interactions. May be involved in the localization of B-cells in lymphoid tissues. Binds sialylated glycoproteins; one of which is CD45. Preferentially binds to alpha-2,6-linked sialic acid. The sialic acid recognition site can be masked by cis interactions with sialic acids on the same cell surface. Upon ligand induced tyrosine phosphorylation in the immune response seems to be involved in regulation of B-cell antigen receptor signaling. Plays a role in positive regulation through interaction with Src family tyrosine kinases and may also act as an inhibitory receptor by recruiting cytoplasmic phosphatases via their SH2 domains that block signal transduction through dephosphorylation of signaling molecules.

Gene Ontology (GO) - Molecular Function for CD22 Gene

GO ID Qualified GO term Evidence PubMed IDs
GO:0030246 carbohydrate binding IEA --
genes like me logo Genes that share ontologies with CD22: view
genes like me logo Genes that share phenotypes with CD22: view

Animal Models for CD22 Gene

MGI Knock Outs for CD22:

Animal Model Products

miRNA for CD22 Gene

miRTarBase miRNAs that target CD22

Flow Cytometry Products

No data available for Enzyme Numbers (IUBMB) , Human Phenotype Ontology , Transcription Factor Targets and HOMER Transcription for CD22 Gene

Localization for CD22 Gene

Subcellular locations from UniProtKB/Swiss-Prot for CD22 Gene

Cell membrane; Single-pass type I membrane protein.

Subcellular locations from

COMPARTMENTS
Jensen Localization Image for CD22 Gene COMPARTMENTS Subcellular localization image for CD22 gene
Compartment Confidence
extracellular 5
plasma membrane 5
cytosol 3
nucleus 3
cytoskeleton 1
vacuole 1

Gene Ontology (GO) - Cellular Components for CD22 Gene

GO ID Qualified GO term Evidence PubMed IDs
GO:0005886 plasma membrane TAS --
genes like me logo Genes that share ontologies with CD22: view

Pathways & Interactions for CD22 Gene

genes like me logo Genes that share pathways with CD22: view

Gene Ontology (GO) - Biological Process for CD22 Gene

None

No data available for SIGNOR curated interactions for CD22 Gene

Drugs & Compounds for CD22 Gene

(6) Drugs for CD22 Gene - From: DrugBank, ClinicalTrials, DGIdb, and Novoseek

Name Status Disease Links Group Role Mechanism of Action Clinical Trials
OspA lipoprotein Approved, Withdrawn Pharma binder 0
Epratuzumab Investigational Pharma antibody, Target 0
Radiopharmaceuticals Pharma 457
INOTUZUMAB OZOGAMICIN Pharma 0
Moxetumomab Pasudotox Pharma antibody 0

(3) Additional Compounds for CD22 Gene - From: Novoseek

Name Synonyms Role CAS Number PubChem IDs PubMed IDs
genes like me logo Genes that share compounds with CD22: view

Transcripts for CD22 Gene

Unigene Clusters for CD22 Gene

CD22 molecule:
Representative Sequences:

Alternative Splicing Database (ASD) splice patterns (SP) for CD22 Gene

ExUns: 1a · 1b · 1c ^ 2 ^ 3 ^ 4 ^ 5 ^ 6a · 6b ^ 7a · 7b · 7c · 7d · 7e · 7f ^ 8a · 8b ^ 9a · 9b · 9c ^ 10a · 10b ^ 11a · 11b · 11c ^ 12a ·
SP1: -
SP2: - - -
SP3: - - - - -
SP4:
SP5: - - - - - - - - - - - - - - - - - - - - - - -
SP6: - - - - - - -
SP7: - - - - - -
SP8: - - - - - -
SP9: - - - - - - - - -
SP10: - - - - - - - - - - - - - - - - -
SP11: - - - - - - - - - - - - - - - - -
SP12: - - - - - - - -
SP13: - - - - - - - - - - - - - - - - - - -
SP14: - - - -
SP15: - - - - - - - - - - - - - - - - -
SP16: - - - - - -
SP17: - - - - - - -
SP18: - - - -
SP19: - - - - - - -
SP20: - - - - - - - - - - - - - - - - - - - - - - -
SP21: - - - -
SP22: - - - - - - - - -
SP23: - - - - - - - - - - - -
SP24: - - - - - - - - - - - - - - - - - - -
SP25: - - - - - -
SP26: - - - - - -
SP27:
SP28:

ExUns: 12b · 12c ^ 13a · 13b · 13c · 13d · 13e ^ 14a · 14b ^ 15 ^ 16 ^ 17 ^ 18 ^ 19 ^ 20
SP1:
SP2:
SP3: - -
SP4: -
SP5: - - -
SP6:
SP7:
SP8:
SP9:
SP10: - -
SP11: - -
SP12:
SP13: - -
SP14:
SP15: - -
SP16:
SP17:
SP18:
SP19:
SP20: - -
SP21:
SP22:
SP23:
SP24:
SP25:
SP26:
SP27:
SP28:

Relevant External Links for CD22 Gene

GeneLoc Exon Structure for
CD22
ECgene alternative splicing isoforms for
CD22

Expression for CD22 Gene

mRNA expression in normal human tissues for CD22 Gene

mRNA expression in embryonic tissues and stem cells from LifeMap Discovery

mRNA differential expression in normal tissues according to GTEx for CD22 Gene

This gene is overexpressed in Spleen (x8.4) and Ovary (x6.8).

Protein differential expression in normal tissues from HIPED for CD22 Gene

This gene is overexpressed in Blymphocyte (42.9) and Lymph node (19.1).

Integrated Proteomics: protein expression in normal tissues and cell lines from ProteomicsDB, PaxDb, and MOPED for CD22 Gene



SOURCE GeneReport for Unigene cluster for CD22 Gene Hs.579691

mRNA Expression by UniProt/SwissProt for CD22 Gene

P20273-CD22_HUMAN
Tissue specificity: B-lymphocytes.
genes like me logo Genes that share expression patterns with CD22: view

Protein tissue co-expression partners for CD22 Gene

Primer Products

Orthologs for CD22 Gene

This gene was present in the common ancestor of chordates.

Orthologs for CD22 Gene

Organism Taxonomy Gene Similarity Type Details
cow
(Bos Taurus)
Mammalia CD22 35
  • 72 (n)
  • 59.76 (a)
CD22 36
  • 58 (a)
OneToOne
dog
(Canis familiaris)
Mammalia CD22 35
  • 75.83 (n)
  • 64.77 (a)
CD22 36
  • 62 (a)
OneToOne
mouse
(Mus musculus)
Mammalia Cd22 35
  • 70.37 (n)
  • 62.15 (a)
Cd22 16
Cd22 36
  • 59 (a)
OneToOne
chimpanzee
(Pan troglodytes)
Mammalia CD22 35
  • 98.72 (n)
  • 97.35 (a)
CD22 36
  • 97 (a)
OneToOne
rat
(Rattus norvegicus)
Mammalia Cd22 35
  • 69.65 (n)
  • 60.1 (a)
oppossum
(Monodelphis domestica)
Mammalia CD22 36
  • 43 (a)
OneToOne
platypus
(Ornithorhynchus anatinus)
Mammalia CD22 36
  • 35 (a)
OneToOne
lizard
(Anolis carolinensis)
Reptilia -- 36
  • 25 (a)
OneToMany
-- 36
  • 25 (a)
OneToMany
tropical clawed frog
(Silurana tropicalis)
Amphibia cd22 35
  • 44.59 (n)
  • 30.96 (a)
zebrafish
(Danio rerio)
Actinopterygii CABZ01058865.1 36
  • 30 (a)
ManyToMany
si:ch211-1f22.14 36
  • 25 (a)
ManyToMany
si:dkey-27j5.10 36
  • 30 (a)
ManyToMany
Species with no ortholog for CD22:
  • 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)
  • chicken (Gallus gallus)
  • 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 CD22 Gene

ENSEMBL:
Gene Tree for CD22 (if available)
TreeFam:
Gene Tree for CD22 (if available)

Paralogs for CD22 Gene

Paralogs for CD22 Gene

genes like me logo Genes that share paralogs with CD22: view

Variants for CD22 Gene

Sequence variations from dbSNP and Humsavar for CD22 Gene

SNP ID Clin Chr 19 pos Sequence Context AA Info Type
VAR_003913 -
rs17719289 - 35,341,920(+) CCAAC(A/G)GTGTG reference, missense
VAR_003915 -
VAR_003916 -
rs201453271 - 35,332,612(+) TCTAC(A/G)CCTGG reference, missense, utr-variant-5-prime

Structural Variations from Database of Genomic Variants (DGV) for CD22 Gene

Variant ID Type Subtype PubMed ID
nsv510765 CNV Loss 20534489
dgv1080e1 CNV Complex 17122850
nsv833810 CNV Gain 17160897
nsv173 CNV Loss 15895083
nsv2471 CNV Loss 18451855

Variation tolerance for CD22 Gene

Residual Variation Intolerance Score: 37% of all genes are more intolerant (likely to be disease-causing)
Gene Damage Index Score: 4.73; 66.34% of all genes are more intolerant (likely to be disease-causing)

Relevant External Links for CD22 Gene

Human Gene Mutation Database (HGMD)
CD22

No data available for Polymorphic Variants from UniProtKB/Swiss-Prot for CD22 Gene

Disorders for CD22 Gene

MalaCards: The human disease database

(19) MalaCards diseases for CD22 Gene - From: DISEASES and GeneCards

Disorder Aliases PubMed IDs
refractory hematologic cancer
  • refractory hematologic malignancy
early yaws
  • bone and joint lesions due to yaws
colon lymphoma
  • colonic lymphoma
hairy cell leukemia
  • hcl
refractory hairy cell leukemia
- elite association - COSMIC cancer census association via MalaCards
Search CD22 in MalaCards View complete list of genes associated with diseases

Relevant External Links for CD22

Genetic Association Database (GAD)
CD22
Human Genome Epidemiology (HuGE) Navigator
CD22
Atlas of Genetics and Cytogenetics in Oncology and Haematology:
CD22
genes like me logo Genes that share disorders with CD22: view

No data available for UniProtKB/Swiss-Prot and Genatlas for CD22 Gene

Publications for CD22 Gene

  1. The B-cell antigen CD22 mediates monocyte and erythrocyte adhesion. (PMID: 1691828) Stamenkovic I. … Seed B. (Nature 1990) 2 3 4 23 67
  2. Association of polymorphisms in complement component C3 gene with susceptibility to systemic lupus erythematosus. (PMID: 18174230) Miyagawa H. … Horiuchi T. (Rheumatology (Oxford) 2008) 3 23
  3. Difference in CD22 molecules in human B cells and basophils. (PMID: 11882357) Toba K. … Aizawa Y. (Exp. Hematol. 2002) 3 23
  4. The ligand-binding domain of CD22 is needed for inhibition of the B cell receptor signal, as demonstrated by a novel human CD22-specific inhibitor compound. (PMID: 11994426) Kelm S. … Nitschke L. (J. Exp. Med. 2002) 3 23
  5. CD45 regulates tyrosine phosphorylation of CD22 and its association with the protein tyrosine phosphatase SHP-1. (PMID: 10228003) Greer S.F. … Justement L.B. (J. Immunol. 1999) 3 23

Products for CD22 Gene

Sources for CD22 Gene

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