1. Gene
  2. CD22 - CD22 molecule Gene

CD22 - CD22 molecule Gene

Homo sapiens

Also known as SIGLEC2; SIGLEC-2

Gene ID: 933 | Gene type: protein coding

About CD22

Cytogenetic location: 19q13.12 Genomic coordinates (GRCh38): 19:35,329,187-35,347,361 (from NCBI)

This gene has 34 transcripts (splice variants), 158 orthologues and 16 paralogues. Biased expression in lymph node (RPKM 101.0), ovary (RPKM 64.7) and 2 other tissues.

Summary

Predicted to enable CD4 receptor binding activity; protein Phosphatase binding activity; and sialic acid binding activity. Involved in B cell activation; negative regulation of B cell receptor signaling pathway; and regulation of endocytosis. Located in early endosome and recycling endosome. [provided by Alliance of Genome Resources, Apr 2022]

CD22 Products(5)

mRNA Protein Name
NM_001185099.2 NP_001172028.1 B-cell receptor CD22 isoform 2 precursor
NM_001185100.2 NP_001172029.1 B-cell receptor CD22 isoform 3 precursor
NM_001185101.2 NP_001172030.1 B-cell receptor CD22 isoform 4 precursor
NM_001278417.2 NP_001265346.1 B-cell receptor CD22 isoform 5
NM_001771.4 NP_001762.2 B-cell receptor CD22 isoform 1 precursor

CD22 Protein Structure

C2-set_2

C2-set_2: CD80-like C2-set immunoglobulin domain (143 - 225)

Ig_2

Ig_2: Immunoglobulin domain (248 - 327)

ig

ig: Immunoglobulin domain (346 - 398)

Ig_2

Ig_2: Immunoglobulin domain (428 - 501)

Ig_2

Ig_2: Immunoglobulin domain (517 - 589)

Ig_2

Ig_2: Immunoglobulin domain (601 - 677)

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  • 847 a.a.
Protein Preferred Names Protein Names

B-cell receptor CD22

B-lymphocyte cell adhesion molecule

Related Diseases

Diseases Alias
Refractory Hairy Cell Leukemia
Refractory Hematologic Cancer

Refractory Hematologic Malignancy

B-Cell Prolymphocytic Leukemia

B Cell Prolymphocytic Leukemia

Prolymphocytic Leukemia, B-Cell Type

B-Pll

Doid:0081041

Leukemia, Prolymphocytic, B-Cell

Pll- [Prolymphocytic Leukaemia]

Prolymphocytic Leukaemia

Prolymphocytic Leukaemia Of B-Cell Type Without Mention Of Remission

Early Yaws

Initial Lesions Of Yaws

Bone And Joint Lesions Due To Yaws

Bone And Joint Yaws Lesion

Chancre Of Yaws

Frambesia, Initial Or Primary

Initial Frambesial Ulcer

Primary Frambesia

Initial Lesion Of Yaws

Hairy Cell Leukemia

Hcl-V

Hairy Cell Leukemia Variant

Hairy Cell Leukaemia Variant

Hcl

Leukemic Reticuloendotheliosis

Leukemic Reticuloendotheliosis Variant

Prolymphocytic Variant Of Hcl

Prolymphocytic Variant Of Hairy Cell Leukemia

Leukemia Hairy Cell

Leukemia, Hairy Cell

Leukaemic Reticuloendotheliosis

Lre - [Leukemic Reticuloendotheliosis]

Hairy-Cell Leukaemia, Nos

Hcl - [Hairy Cell Leukaemia]

Hairy-Cell Leukaemia Without Mention Of Remission

Acute Leukemia

Stem Cell Leukaemia

Stem Cell Leukemia

Acute Leukemias

Acute Undifferentiated Leukemia

Undifferentiated Leukemia

Acute Leukaemia Of Unspecified Cell Type Without Mention Of Remission

Blast Cell Leukaemia

Blast Leukaemia

Blastic Leukaemia

Undifferentiated Leukaemia

Eye Lymphoma

Malignant Lymphoma Of Eye

Lymphoma Of Eye

Relapsed/Refractory Diffuse Large B-Cell Lymphoma
Adult Lymphoma
Hyperglobulinemic Purpura

Purpura, Hyperglobulinemic

Spleen Cancer

Spleen Neoplasm

Splenic Neoplasm

Splenic Neoplasms

Malignant Splenic Tumor

Malignant Tumour Of Spleen

Tumor Of Spleen

Malignant Neoplasm Of Spleen

Splenic Marginal Zone Lymphoma

Smzl

Splenic Marginal Zone B-Cell Lymphoma

B-Cell Lymphoma

Lymphoma, B-Cell

B-Cell Lymphomas

B-Cell Lymphocytic Neoplasm

Lymphoma B-Cell

B-Cell Lymphoma Nos

Leukemia, Acute Lymphoblastic

Acute Lymphoblastic Leukemia

ALL

Acute Lymphocytic Leukemia

Leukemia, Acute Lymphocytic, Susceptibility To, 1

Acute Lymphoblastic Leukaemia

Precursor Lymphoblastic Lymphoma/Leukemia

Precursor Lymphoid Neoplasm

Leukemia, Acute Lymphoblastic, Susceptibility To

B-Cell Acute Lymphoblastic Leukemia

Leukemia, Acute Lymphocytic 1

Acute Lymphocytic Leukaemia

Acute Lymphoblastic Leukemia/Lymphoma

All1

Childhood Acute Lymphoblastic Leukemia

Leukemia Acute Lymphoblastic 1

Leukemia Acute Lymphoblastic B-Hyperdiploid

Leukemia Acute Lymphocytic

Leukemia Acute Lymphocytic 1

Leukemia B-Cell Acute Lymphoblastic

Leukemia T-Cell Acute Lymphoblastic

Leukemia, Acute Lymphoblastic, 3

ALL3

Lymphoblastic Leukemia Acute

Leukemia, Acute, Lymphoblastic

Precursor Cell Lymphoblastic Leukemia Lymphoma

Leukemia, Lymphocytic, Acute, L1

Leukemia, Acute Lymphoblastic, Susceptibility To, 3

Intraocular Lymphoma

Primary Intraocular Lymphoma

Piol

Primary Intraocular Non-Hodgkin Lymphoma

Primary Intraocular Non-Hodgkin Malignant Lymphoma

B-Cell Adult Acute Lymphocytic Leukemia

Adult B Acute Lymphoblastic Leukemia

Adult B Acute Lymphoblastic Leukaemia

Adult B-Cell Acute Lymphoblastic Leukaemia

Adult B-Cell Acute Lymphoblastic Leukemia

Adult B-Cell Lymphocytic Leukaemia

Adult B-Cell Lymphocytic Leukemia

Adult B-Lymphoblastic Leukaemia

Adult B-Lymphoblastic Leukemia

B-Cell Adult Acute Lymphocytic Leukaemia

B-Cell Adult Acute Lymphoblastic Leukemia

Lymphoplasmacytic Lymphoma

Waldenstrom Macroglobulinemia

Malignant Lymphoma - Lymphoplasmacytic

Waldenström Macroglobulinaemia

Waldenström Macroglobulinaemia Without Mention Of Remission

Idiopathic Macroglobulinaemia

Primary Macroglobulinaemia

Chronic Lymphocytic Leukemia/Small Lymphocytic Lymphoma

Cll/Sll

B-Cell Lymphocytic Leukemia/Small Lymphocytic Lymphoma

Icdo:9823/3

Chronic Lymphocytic Leukaemia Of B-Cell Type Without Mention Of Remission

Small Cell B-Cell Lymphoma

Capillary Disease

Disease Of Capillaries

Composite Lymphoma

Composite Hodgkin And Non-Hodgkin Lymphoma

Childhood Lymphoma

Pediatric Lymphoma

Retina Lymphoma

Lymphoma Of Retina

Retinal Lymphoma

Capillary Leak Syndrome

Systemic Capillary Leak Syndrome

Clarkson Disease

Capillary Leak Syndrome With Monoclonal Gammopathy

Scls

Periodic Systemic Capillary Leak Syndrome

Capillary Hyperpermeability Syndrome

Idiopathic Capillary Leak Syndrome

Hepatic Veno-Occlusive Disease

Veno-Occlusive Disease

Sinusoidal Obstruction Syndrome

Hepatic Venoocclusive Disease

Venoocclusive Disease

Hepatic Vein Thrombosis

Budd-Chiari Syndrome

Hepatic Vein Occlusion

Veno-Occlusive Disease Of The Liver

Intellectual Developmental Disorder, Autosomal Dominant 4

MRD4

Autosomal Dominant Non-Syndromic Intellectual Disability 4

Mental Retardation, Autosomal Dominant 4

Autosomal Dominant Intellectual Developmental Disorder 4

Adult Acute Lymphocytic Leukemia

Adult Acute Lymphoid Leukemia

Adult All

B-Lymphoblastic Leukemia/Lymphoma

B Lymphoblastic Leukemia/Lymphoma

B-All

Precursor B Lymphoblastic Lymphoma/Leukemia

C-All

Lymphoblastic Lymphoma, Nos

Common Precursor B All

Lymphoblastic B-Cell Lymphoma

Pro-B All

B-Precursor Lymphoma

Lbl - [Lymphoblastic Lymphoma]

Acute Biphenotypic Leukemia

Mixed Phenotype Acute Leukemia

Acute Leukemia Of Ambiguous Lineage

Acute Undifferentiated Leukemia

Acute Leukemia Of Indeterminate Lineage

Hybrid Acute Leukemia

Mixed Lineage Acute Leukemia

All With Myeloid Markers

Aml With Lymphoid Markers

Acute Leukemia Of Undetermined Lineage

Bal

Biphenotypic Acute Leukemia

Undifferentiated Acute Leukemia

Mpal

Acute Myeloid Leukemia, Minimal Differentiation, Fab M0

Leukemia, Biphenotypic, Acute

Marginal Zone B-Cell Lymphoma

Marginal Zone Lymphoma

Mzl

Mucosa-Associated Lymphoid Tissue Lymphoma

Puerperal Pulmonary Embolism

Obstetric Pulmonary Embolism

Autoimmune Disease

Autoimmune Diseases

Autoimmune Hypersensitivity Disease

Hypersensitivity Reaction Type Ii Disease

Type Ii Hypersensitivity Reaction Disease

Richter'S Syndrome

Richter Syndrome

Richter Transformation

Mantle Cell Lymphoma

Lymphoma, Mantle Cell

Lcm

Mcl

Mantle Zone Lymphoma

Lymphoma Mantle-Cell

Lymphoma, Mantle-Cell

Malignant Lymphoma, Lymphocytic, Intermediate Differentiation, Diffuse

Malignant Lymphoma - Lymphocytic, Intermediate Differentiation

Diffuse Small Cleaved-Cell Lymphoma

Diffuse Small Cleaved Cell Malignant Lymphoma

Small Cleaved Cell Non-Hodgkin Lymphoma

Diffuse Non-Hodgkin Small Cleaved Cell Lymphoma

Malignant Lymphomatous Polyposis

Malignant Small Cell, Noncleaved, Diffuse Lymphoma

Malignant Undifferentiated Cell, Non-Burkitt Lymphoma

Cleaved Cell Lymphoma

Small Cell Mantle Cell Lymphoma

Small Cleaved Cell Malignant Lymphoma

Systemic Lupus Erythematosus

Lupus Nephritis

SLE

Disseminated Lupus Erythematosus

Systemic Lupus Erythematosus, Susceptibility To

Lupus Erythematosus, Systemic

Lupus Nephritis, Susceptibility To

Libman-Sacks Disease

Systemic Lupus Erythematosus Susceptibility To

Sle - Lupus Erythematosus, Systemic

Le Syndrome

Lupus

Lupus Erythematosus Systemic

Lupus Erythematosus, Systemic, Susceptibility To

Lupus Vulgaris

Lupus Erythematosus, Discoid

Lupus Erythematosus

Systemic Lupus Erythematosus Nos

Sle - [Systemic Lupus Erythematosus]

Lung Cancer

Lung Carcinoma

Non-Small Cell Lung Carcinoma

Lung Cancer, Susceptibility To

Lung Cancer, Protection Against

Adenocarcinoma Of Lung, Somatic

Adenocarcinoma Of Lung, Response To Tyrosine Kinase Inhibitor In

Nonsmall Cell Lung Cancer

Lung Neoplasm

Carcinoma Of Lung

Lung Non-Small Cell Carcinoma

Non-Small Cell Lung Cancer

Nsclc

Lung Neoplasms

Malignant Neoplasm Of Lung

Alveolar Cell Carcinoma

Nonsmall Cell Lung Cancer, Somatic

Nonsmall Cell Lung Cancer, Response To Tyrosine Kinase Inhibitor In

Nonsmall Cell Lung Cancer, Susceptibility To

Lung Cancer, Somatic

Lung Cancer, Resistance To

Cancer Of Lung

Cancer Of Bronchus

Cancer Of The Lung

Lung Malignancies

Lung Malignant Tumors

Malignant Lung Tumor

Malignant Tumor Of Lung

Pulmonary Cancer

Pulmonary Carcinoma

Pulmonary Neoplasms

Respiratory Carcinoma

LNCR

Adenocarcinoma Of Lung

Neoplasm Of Lung

Cancer Lung

Carcinoma Non-Small Cell Lung

Carcinoma, Non-Small-Cell Lung

Lung Cancers

Lung Carcinomas

Cancer, Lung

Cancer, Lung, Non-Small Cell

Primary Malignant Neoplasm Of Lung

Bronchioloalveolar Adenocarcinoma

Mature B-Cell Neoplasm

Mature B-Cell Lymphocytic Neoplasm

Neoplasm Of Mature B-Cells

Mature B-Cell Non-Hodgkin Neoplasm With Leukaemic Behaviour

Splenic Disease

Splenic Diseases

Dyssplenism

Spleen Disease

Abnormality Of The Spleen

Spleen Diseases

Refractory Plasma Cell Neoplasm
Lymphoma, Mucosa-Associated Lymphoid Type

Malt Lymphoma

Gastric Lymphoma, Primary

Lymphoma, Malt, Somatic

Mucosa-Associated Lymphoid Tissue Lymphoma

Extranodal Marginal Zone B-Cell Lymphoma

MALTOMA

Marginal Zone B-Cell Lymphoma

Mucosa-Associated Lymphatic Tissue Lymphoma

Primary Gastric Lymphoma

Gastric Lymphoma

Familial Primary Gastric Lymphoma

Complement Component 7 Deficiency

C7 Deficiency

C7D

Renal Pelvis Transitional Cell Carcinoma

Urothelial Cell Carcinoma Of Renal Pelvis

Renal Pelvis Urothelial Carcinoma

Transitional Cell Carcinoma Of Renal Pelvis

Pancytopenia
Soft Palate Cancer

Malignant Tumor Of Soft Palate

Malignant Tumor Of The Soft Palate

Palate Cancer Soft Palate

Leukemia, Chronic Lymphocytic

Chronic Lymphocytic Leukemia

B-Cell Chronic Lymphocytic Leukemia

CLL

B-Cell Chronic Lymphoid Leukemia

Chronic Lymphatic Leukemia

Chronic Lymphocytic Leukaemia

Lymphoplasmacytic Leukemia

Small Lymphocytic Lymphoma

Leukemia, Chronic Lymphatic

B-Cell Chronic Lymphocytic Leukaemia

Chronic Lymphatic Leukaemia

Lymphoplasmacytic Leukaemia

B Cell Chronic Lymphocytic Leukemia

Chronic B-Cell Lymphocytic Leukemia

Leukemia, Lymphocytic, Chronic

B-Cll

Chronic Lymphoid Leukemia

Leukemia Lymphocytic Chronic

Lymphoma Small Lymphocytic

Leukemia, Lymphocytic, Chronic, B-Cell

Lymphoma, Non-Hodgkin, Familial

Non-Hodgkin Lymphoma

Lymphoma, Non-Hodgkin

NHL

Lymphoma, Non-Hodgkin, Somatic

Lymphoma, Follicular, Somatic

Familial Non-Hodgkin Lymphoma

Lymphoma Non-Hodgkins

Follicular Lymphoma, Somatic

Lymphosarcoma

Non-Hodgkins Lymphoma

Leukemia, Acute Myeloid

Acute Myeloid Leukemia

Leukemia, Acute Myelogenous

Acute Myelogenous Leukemia

AML

Leukemia, Acute Myeloid, Susceptibility To

Acute Myeloblastic Leukemia

Leukemia, Acute Myeloid, Reduced Survival In, Somatic

Acute Myeloid Leukaemia

Leukemia, Myelocytic, Acute

Therapy Related Acute Myeloid Leukemia And Myelodysplastic Syndrome

Secondary Aml

Acute Myelocytic Leukemia

Acute Myeloid Leukemia, Somatic

Leukemia, Acute Myeloid, Somatic

Myeloid Leukemia, Acute, M4/M4eo Subtype, Somatic

Acute Myeloblastic Leukaemia

Acute Myelogenous Leukaemia

Aml - Acute Myeloid Leukemia

Acute Myeloid Leukemia With Cebpa Somatic Mutations

Aml With Cebpa Somatic Mutations

Inherited Acute Myeloid Leukemia

Familial Aml

Inherited Aml

Pure Familial Aml

Pure Familial Acute Myeloid Leukemia

Secondary Acute Myeloid Leukemia

Therapy-Related Aml And Myelodysplastic Syndrome

Acute Myeloid Leukemia, Secondary

Acute Non-Lymphoblastic Leukemia

Acute Non-Lymphocytic Leukemia

Acute Biphenotypic Leukemia

Acute Undifferentiated Leukemia

Acute Myeloblastic Leukaemia With Multilineage Dysplasia

Acute Myeloid Leukaemia With Multilineage Dysplasia Without Mention Of Remission

Acute Myeloid Leukaemia With Myelodysplasia-Related Features

Diseases Alias
Waldenstroem'S Macroglobulinemia

Waldenstroem'S Macroglobulinemia

Waldenstroem'S Macroglobulinemia

Macroglobulinemia Of Waldenstrom

Lymphoplasmacytic Lymphoma With Igm Gammopathy

Lymphoplasmacytic Lymphoma

Waldenstroem'S Macroglobulinemia

Waldenstroem'S Macroglobulinemia

Macroglobulinemia Of Waldenstrom

Lymphoplasmacytic Lymphoma With Igm Gammopathy

Lymphoplasmacytic Lymphoma

Orthologs Information

Species Symbol Source ID
Felis catus CD22 VGNC VGNC:60597
Macaca mulatta CD22 VGNC VGNC:70758
Mus musculus CD22 MGD MGI:88322
Bos taurus CD22 VGNC VGNC:27012
Canis familiaris CD22 VGNC VGNC:38939
Rattus norvegicus CD22 RGD RGD:1311610
Macaca fascicularis CD22 NCBI
Others CD22 NCBI