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CD22

CD22 (CD22 Molecule) is a Protein Coding gene. Diseases associated with CD22 include Refractory Hematologic Cancer and Refractory Hairy Cell Leukemia. Among its related pathways are Hematopoietic Stem Cell Differentiation Pathways and Lineage-specific Markers and Innate Immune System. Gene Ontology (GO) annotations related to this gene include carbohydrate binding. An important paralog of this gene is SIGLEC1.
Full Name
CD22 Molecule
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.
Biological Process
B cell activation Source: ARUK-UCL
Cell adhesion Source: ProtInc
Negative regulation of B cell receptor signaling pathway Source: ARUK-UCL
Negative regulation of calcium-mediated signaling Source: ARUK-UCL
Negative regulation of immunoglobulin production Source: ARUK-UCL
Regulation of B cell proliferation Source: ARUK-UCL
Regulation of endocytosis Source: ARUK-UCL
Regulation of immune response Source: ARUK-UCL
Cellular Location
Cell membrane
Topology
Extracellular: 20-687
Helical: 688-706
Cytoplasmic: 707-847
PTM
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.
Phosphorylated on tyrosine residues by LYN.

Anti-CD22 antibodies

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Target: CD22
Host: Mouse
Antibody Isotype: IgG2a
Specificity: Human
Clone: TPD44/D11
Application*: F, IH, MC
Target: CD22
Host: Mouse
Antibody Isotype: IgG2b, κ
Specificity: Human
Clone: To15
Application*: F, MC
Target: CD22
Host: Mouse
Specificity: Human
Clone: RFB4
Application*: F, IF
Target: CD22
Host: Rat
Antibody Isotype: IgG1
Specificity: Mouse
Clone: OX-97
Application*: F
Target: CD22
Host: Mouse
Antibody Isotype: IgG1, κ
Specificity: Human
Clone: FR10B4
Application*: F, IF, MC
Target: CD22
Host: Mouse
Specificity: Human
Clone: CBYY-C1263
Application*: WB
Target: CD22
Host: Rabbit
Antibody Isotype: IgG
Specificity: Human
Clone: CBYY-C1262
Application*: E, IF
Target: CD22
Host: Rat
Antibody Isotype: IgG1, κ
Specificity: Mouse
Clone: CBYY-C0448
Application*: F
Target: CD22
Host: Mouse
Antibody Isotype: IgG1
Specificity: Human
Clone: CBYY-C0385
Application*: F, IF, IH
Target: CD22
Host: Mouse
Antibody Isotype: IgG2b
Specificity: Human
Clone: 5.8HK
Application*: F
Target: CD22
Host: Mouse
Antibody Isotype: IgG
Specificity: Human
Clone: CBXC-1723
Application*: WB, IP
Target: CD22
Host: Mouse
Antibody Isotype: IgG1
Specificity: Human
Clone: MEM-01
Application*: F, IP, WB
Target: CD22
Host: Mouse
Antibody Isotype: IgG2b
Specificity: Human
Clone: S-HCL-1
Application*: F
Target: CD22
Host: Mouse
Antibody Isotype: IgG2a
Specificity: Human
Clone: CBXC-2637
Application*: E, IH, WB
Target: CD22
Host: Mouse
Antibody Isotype: IgG1
Specificity: Human
Clone: CBXC-1914
Application*: WB, IH, IF
Target: CD22
Host: Mouse
Antibody Isotype: IgG
Specificity: Human
Clone: CBXC-1801
Application*: IP, IF, F
Target: CD22
Host: Rat
Antibody Isotype: IgG1, κ
Specificity: Mouse
Clone: CBXC-1630
Application*: F
Target: CD22
Host: Mouse
Antibody Isotype: IgG1
Specificity: Human
Clone: IS7
Application*: F
Target: CD22
Host: Mouse
Antibody Isotype: IgG1
Specificity: Human
Clone: CBXS-3808
Application*: WB, F, E, IF, MC
Target: CD22
Host: Human
Antibody Isotype: IgG1
Specificity: Human
Clone: CBXC-0817
Application*: F
Target: CD22
Host: Rabbit
Antibody Isotype: IgG
Specificity: Mouse
Clone: CBYY-C1270
Application*: WB, IP
Target: CD22
Host: Mouse
Antibody Isotype: IgG1
Specificity: Human
Clone: CBYY-C1269
Application*: F, IH
Target: CD22
Host: Mouse
Antibody Isotype: IgG1
Specificity: Human
Clone: CBYY-C1268
Application*: E
Target: CD22
Host: Mouse
Antibody Isotype: IgG1
Specificity: Human
Clone: CBYY-C1266
Application*: P, WB
Target: CD22
Host: Mouse
Antibody Isotype: IgG1
Specificity: Human
Clone: CBYY-C1265
Application*: F
Target: CD22
Host: Mouse
Antibody Isotype: IgG1
Specificity: Human
Clone: CBYY-C1264
Application*: IH
Target: CD22
Host: Mouse
Antibody Isotype: IgG1
Specificity: Human
Clone: CB054
Application*: IF, FC
Target: CD22
Host: Mouse
Antibody Isotype: IgG1
Specificity: Human
Clone: CB053
Application*: IF, FC
Target: CD22
Host: Rat
Antibody Isotype: IgG1
Specificity: Mouse
Clone: CBYY-C0096
Application*: F
Target: CD22
Host: Mouse
Antibody Isotype: IgG1
Specificity: Human
Clone: CBFYC-1167
Application*: E, P
Target: CD22
Host: Mouse
Antibody Isotype: IgG1
Specificity: Human
Clone: CBFYC-1166
Application*: E, WB
Target: CD22
Host: Rabbit
Antibody Isotype: IgG
Specificity: Mouse
Clone: CBFYC-1165
Application*: WB, IP
Target: CD22
Host: Mouse
Antibody Isotype: IgG1
Specificity: Human
Clone: CBFYC-1164
Application*: F
Target: CD22
Host: Mouse
Specificity: Human
Clone: CBFYC-1163
Application*: E, F, IC, WB
Target: CD22
Host: Mouse
Antibody Isotype: IgG1
Specificity: Human
Clone: CBFYC-1162
Application*: IH
Target: CD22
Host: Mouse
Antibody Isotype: IgG1
Specificity: Human
Clone: CBFYC-1161
Application*: E, WB, P, IF, F
Target: CD22
Host: Rabbit
Antibody Isotype: IgG
Specificity: Mouse
Clone: CBFYC-0117
Application*: F
Target: CD22
Host: Mouse
Antibody Isotype: IgG1
Specificity: Human
Clone: CBFYC-0070
Application*: F
Target: CD22
Host: Mouse
Antibody Isotype: IgG1
Specificity: Mouse
Clone: A039
Application*: FC
Target: CD22
Host: Mouse
Antibody Isotype: IgG1
Specificity: Human
Clone: A038
Application*: FC
Target: CD22
Host: Mouse
Antibody Isotype: IgG2a
Specificity: Human
Clone: 456
Application*: ELISA, IHC, WB
Target: CD22
Host: Mouse
Antibody Isotype: IgG
Specificity: Human
Clone: 4KB71
Application*: IHC
Target: CD22
Host: Mouse
Antibody Isotype: IgG1
Specificity: Human
Clone: RFB-4
Application*: FC, IF, IHC
Target: CD22
Host: Mouse
Antibody Isotype: IgG2a
Specificity: Human
Clone: LT22
Application*: ELISA, IHC
Target: CD22
Host: Mouse
Antibody Isotype: IgG1
Specificity: Human
Clone: BU59
Application*: FC, IHC
Target: CD22
Host: Mouse
Antibody Isotype: IgG1
Specificity: Human
Clone: CF071
Application*: ELISA, WB, IHC
Target: CD22
Host: Rat
Antibody Isotype: IgG1, κ
Specificity: Mouse
Clone: 5K249
Application*: F
Target: CD22
Host: Mouse
Antibody Isotype: IgG1
Specificity: Human
Clone: CBYY-C0518
Application*: F
Target: CD22
Host: Mouse
Antibody Isotype: IgG
Specificity: Human
Clone: 4KB71
Application*: IH
Target: CD22
Host: Mouse
Antibody Isotype: IgG1, κ
Specificity: Human
Clone: 4KB128
Application*: F
Target: CD22
Host: Rabbit
Antibody Isotype: IgG
Specificity: Mouse
Clone: 87
Application*: WB, IP
Target: CD22
Host: Mouse
Antibody Isotype: IgG1
Specificity: Human
Clone: 726830
Application*: C, WB
Target: CD22
Host: Mouse
Antibody Isotype: IgG1
Specificity: Human
Clone: CB052
Application*: IF, FC
Target: CD22
Host: Mouse
Antibody Isotype: IgG1
Specificity: Human
Clone: CB051
Application*: IF, FC
Target: CD22
Host: Mouse
Antibody Isotype: IgG2b
Specificity: Human
Clone: 5E7
Application*: FC, WB
Target: CD22
Host: Mouse
Specificity: Human
Clone: IHC022
Application*: IH
Target: CD22
Host: Rabbit
Antibody Isotype: IgG
Specificity: Human, Mouse, Rat
Clone: CBLC278-LY
Application*: WB
Target: CD22
Host: Mouse
Antibody Isotype: IgG1
Specificity: Human
Clone: Mc54-9
Application*: IC/IF, IP
Target: CD22
Host: Rabbit
Antibody Isotype: IgG
Specificity: Dog, Human
Clone: SP104
Application*: F
Target: CD22
Host: Mouse
Antibody Isotype: IgG1
Specificity: Human, Sheep, Cattle
Clone: Mc 64-12
Application*: F
Target: CD22
Host: Rat
Antibody Isotype: IgG1
Specificity: Mouse
Clone: OX97
Application*: F
Target: CD22
Host: Mouse
Antibody Isotype: IgG1
Specificity: Human
Clone: TB22
Application*: IF/IC, C
Target: CD22
Host: Mouse
Antibody Isotype: IgG1, κ
Specificity: Mouse, Human
Clone: 12a/CD22
Application*: FC
Target: CD22
Host: Mouse
Antibody Isotype: IgG1, κ
Specificity: Human
Clone: HIB22
Application*: FC, IH
Target: CD22
Host: Mouse
Antibody Isotype: IgG1
Specificity: Human
Clone: 6A260
Application*: FC, IP, WB
Target: CD22
Host: Mouse
Specificity: Human
Clone: 14i98
Application*: E, FC, IF, IH, WB
Target: CD22
Host: Mouse
Antibody Isotype: IgG1
Specificity: Human
Clone: B-ly8
Application*: IF, FC
Target: CD22
Host: Mouse
Specificity: Human, Mouse, Rat
Clone: 5B17
Application*: E, FC, IF, IH, IP
Target: CD22
Host: Mouse
Antibody Isotype: IgG1
Specificity: Human
Clone: RFB-4
Application*: F, IH, IF
Target: CD22
Host: Mouse
Antibody Isotype: IgG1
Specificity: Human
Clone: BU59
Application*: F, IH
Target: CD22
Host: Mouse
Antibody Isotype: IgG1
Specificity: Human
Clone: 5F25
Application*: F, IF, IH
Target: CD22
Host: Rabbit
Antibody Isotype: IgG
Specificity: Mouse
Clone: 078
Application*: WB
Target: CD22
Host: Rabbit
Antibody Isotype: IgG
Specificity: Mouse
Clone: 087
Application*: WB, IP
Target: CD22
Host: Mouse
Antibody Isotype: IgG1
Specificity: Human
Clone: CB050
Application*: IF, FC
Target: CD22
Host: Mouse
Antibody Isotype: IgG1
Specificity: Human
Clone: 10B1062
Application*: F
Target: CD22
Host: Mouse
Antibody Isotype: IgG1
Specificity: Human
Clone: 10C3
Application*: E, WB
Target: CD22
Host: Mouse
Antibody Isotype: IgG1
Specificity: Human
Clone: 12
Application*: E, P
Target: CD22
Host: Mouse
Antibody Isotype: IgG
Specificity: Human
Clone: 14i97
Application*: E, F, C, WB
Target: CD22
Host: Mouse
Antibody Isotype: IgG1
Specificity: Human
Clone: 1A3A11
Application*: E, WB, P, IF/C, F
Target: CD22
Host: Mouse
Antibody Isotype: IgG1
Specificity: Human
Clone: 1B1
Application*: WB, P, IF/IC
Target: CD22
Host: Mouse
Antibody Isotype: IgG1
Specificity: Human
Clone: 1F12
Application*: IF, WB
Target: CD22
Host: Mouse
Antibody Isotype: IgG1
Specificity: Human
Clone: 1F2
Application*: P, WB
Target: CD22
Host: Mouse
Antibody Isotype: IgG2b
Specificity: Human
Clone: 2E6
Application*: P, WB
Target: CD22
Host: Mouse
Antibody Isotype: IgG1
Specificity: Mouse, Human
Clone: 2H1C4
Application*: WB, E, P, F, IC/IF
Target: CD22
Host: Rat
Antibody Isotype: IgG2a
Specificity: Mouse
Clone: 308501
Application*: C, WB
Target: CD22
Host: Rabbit
Antibody Isotype: IgG
Specificity: Human
Clone: 340
Application*: E, IC/IF, IF
Target: CD22
Host: Mouse
Antibody Isotype: IgG
Specificity: Human
Clone: 37
Application*: WB
Target: CD22
Host: Mouse
Antibody Isotype: IgG1
Specificity: Human
Clone: 7H215
Application*: FC
Target: CD22
Host: Mouse
Antibody Isotype: IgG1
Specificity: Human
Clone: 3H1112
Application*: IH
Target: CD22
Host: Mouse
Antibody Isotype: IgG1
Specificity: Human
Clone: 3H4
Application*: F, IC
Target: CD22
Host: Mouse
Antibody Isotype: IgG1
Specificity: Human
Clone: 4C3
Application*: P, WB
Target: CD22
Host: Mouse
Antibody Isotype: IgG
Specificity: Human
Clone: 5B18
Application*: F
Target: CD22
Host: Rat
Antibody Isotype: IgG1
Specificity: Mouse
Clone: 2D6
Application*: F, IP
Target: CD22
Host: Rat
Antibody Isotype: IgG
Specificity: Mouse
Clone: 3H1115
Application*: F
Target: CD22
Host: Mouse
Antibody Isotype: IgG
Specificity: Human
Clone: 0.N.91
Application*: IH
Target: CD22
Host: Mouse
Antibody Isotype: IgG1
Specificity: Human
Clone: 7
Application*: E
Target: CD22
Host: Rabbit
Antibody Isotype: IgG
Specificity: Mouse
Clone: 064
Application*: E
Target: CD22
Host: Mouse
Antibody Isotype: IgG1
Specificity: Mouse
Clone: Cy34.1
Application*: F, IP
Target: CD22
Host: Rabbit
Antibody Isotype: IgG
Specificity: Mouse
Clone: 026
Application*: F
Target: CD22
Host: Mouse
Antibody Isotype: IgG1
Specificity: Human
Clone: 07
Application*: E
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For Research Use Only. Not For Clinical Use.
(P): Predicted
* Abbreviations
IFImmunofluorescence
IHImmunohistochemistry
IPImmunoprecipitation
WBWestern Blot
EELISA
MMicroarray
CIChromatin Immunoprecipitation
FFlow Cytometry
FNFunction Assay
IDImmunodiffusion
RRadioimmunoassay
TCTissue Culture
GSGel Supershift
NNeutralization
BBlocking
AActivation
IInhibition
DDepletion
ESELISpot
DBDot Blot
MCMass Cytometry/CyTOF
CTCytotoxicity
SStimulation
AGAgonist
APApoptosis
IMImmunomicroscopy
BABioassay
CSCostimulation
EMElectron Microscopy
IEImmunoelectrophoresis
PAPeptide Array
ICImmunocytochemistry
PEPeptide ELISA
MDMeDIP
SHIn situ hybridization
IAEnzyme Immunoassay
SEsandwich ELISA
PLProximity Ligation Assay
ECELISA(Cap)
EDELISA(Det)
BIBioimaging
IOImmunoassay
LFLateral Flow Immunoassay
LALuminex Assay
CImmunohistochemistry-Frozen Sections
PImmunohistologyp-Paraffin Sections
ISIntracellular Staining for Flow Cytometry
MSElectrophoretic Mobility Shift Assay
RIRNA Binding Protein Immunoprecipitation (RIP)
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