1. Gene
  2. CR2 - complement C3d receptor 2 Gene

CR2 - complement C3d receptor 2 Gene

Homo sapiens

Also known as CR; C3DR; CD21; CVID7; SLEB9

Gene ID: 1380 | Gene type: protein coding

About CR2

Cytogenetic location: 1q32.2 Genomic coordinates (GRCh38): 1:207,454,328-207,489,892 (from NCBI)

This gene has 10 transcripts (splice variants), 180 orthologues, 39 paralogues and is associated with 5 phenotypes. Biased expression in lymph node (RPKM 99.4), spleen (RPKM 44.6) and 1 other tissue.

Summary

This gene encodes a membrane protein, which functions as a receptor for Epstein-Barr virus (EBV) binding on B and T lymphocytes. Genetic variations in this gene are associated with susceptibility to systemic lupus erythematosus type 9 (SLEB9). Alternatively spliced transcript variants encoding different isoforms have been found for this gene.[provided by RefSeq, Sep 2009]

CR2 Products(2)

mRNA Protein Name
NM_001006658.3 NP_001006659.1 complement receptor type 2 isoform 1 precursor
NM_001877.5 NP_001868.2 complement receptor type 2 isoform 2 precursor

CR2 Protein Structure

Sushi

Sushi: Sushi repeat (SCR repeat) (23 - 82)

Sushi

Sushi: Sushi repeat (SCR repeat) (91 - 146)

Sushi

Sushi: Sushi repeat (SCR repeat) (154 - 210)

Sushi

Sushi: Sushi repeat (SCR repeat) (218 - 271)

Sushi

Sushi: Sushi repeat (SCR repeat) (276 - 342)

Sushi

Sushi: Sushi repeat (SCR repeat) (351 - 406)

Sushi

Sushi: Sushi repeat (SCR repeat) (410 - 466)

Sushi

Sushi: Sushi repeat (SCR repeat) (527 - 593)

Sushi

Sushi: Sushi repeat (SCR repeat) (607 - 657)

Sushi

Sushi: Sushi repeat (SCR repeat) (681 - 714)

Sushi

Sushi: Sushi repeat (SCR repeat) (719 - 779)

Sushi

Sushi: Sushi repeat (SCR repeat) (788 - 843)

Sushi

Sushi: Sushi repeat (SCR repeat) (851 - 907)

Sushi

Sushi: Sushi repeat (SCR repeat) (912 - 968)

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  • 1033 a.a.
Protein Preferred Names Protein Names

complement receptor type 2

EBV receptor

Recombinant CR2 Proteins

Cat. No. Product Name Accession Purity
HY-P72890 CD21 Protein, Human (HEK293, His) P20023-1 (I21-R971) ≥95%
HY-P77885 CD21 Protein, Human (951a.a, HEK293, His) P20023 (I21-R971) ≥95%

Related Diseases

Diseases Alias
Immunodeficiency, Common Variable, 7

CVID7

Common Variable Immunodeficiency 7

Immunodeficiency, Variable, Common, Type 7

Systemic Lupus Erythematosus 9

Systemic Lupus Erythematosus, Susceptibility To, 9

SLEB9

Lupus Erythematosus, Systemic, Type 9

Common Variable Immunodeficiency

Cvid

Common Variable Agammaglobulinemia

Common Variable Immune Deficiency

Acquired Hypogammaglobulinemia

Hypogamma-Globulinemia, Acquired

Idiopathic Immunoglobulin Deficiency

Primary Antibody Deficiency

Primary Hypogammaglobulinemia

Acquired Agammaglobulinemia

Sporadic Hypogammaglobulinemia

Common Variable Hypogamma-Globulinemia

Immunoglobulin Deficiency, Late-Onset

Common Variable Hypogammaglobulinemia

Immunodeficiency, Common Variable

Immunodeficiency, Common Variable, 2

CVID2

Antibody Deficiency Due To Taci Defect

Hypogammaglobulinemia Due To Taci Deficiency

Common Variable Immunodeficiency 2

Immunodeficiency, Variable, Common, Type 2

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]

Follicular Dendritic Cell Sarcoma

Dendritic Cell Sarcoma

Dendritic Cell Sarcoma, Follicular

Follicular Dendritic Cell Tumour

Dendritic Cell Sarcoma, Interdigitating

Dendritic Cell Sarcoma, Not Otherwise Specified

Lupus Erythematosus

Lupus

Lupus Vulgaris

Lupus Erythematosus, Discoid

Lupus Erythematosus, Systemic

Subacute Cutaneous Lupus

Le - [Lupus Erythematosus]

Interdigitating Dendritic Cell Sarcoma

Interdigitating Cell Sarcoma

Dendritic Cell Sarcoma, Interdigitating

Reticulum Cell Sarcoma

Lobomycosis

Cutaneous Blastomycosis

Cutaneous Lobomycosis

Infection By Loboa Loboi

Lobo Disease

Pfeiffer Syndrome

Infectious Mononucleosis

Acs5

Craniofacial-Skeletal-Dermatologic Dysplasia

Acs V

Noack Syndrome

Gammaherpesviral Mononucleosis

Acrocephalosyndactyly Type 5

Pfeiffer Syndrome Type 3

Acrocephalosyndactyly, Type V

Glandular Fever

Pfeiffer Type Acrocephalosyndactyly

Pfeiffer Syndrome Type 2

Acrocephalosyndactylia Type V

Filatov'S Disease

Monocytic Angina

Mononucleosis

Pfeiffer'S Disease

Acsv

Acrocephalosyndactyly, Type 5

Craniofacial-Skeletal-Dermatologic Syndrome

Pfeiffer Syndrome Type 1

Classic Pfeiffer Syndrome

PS

Pfeiffer Syndrome Variant

Dysplasia, Craniofacial-Skeletal-Dermatologic

Pfeiffer

Kissing Disease

Infectious Adenitis

Pfeiffer Disease

Cryoglobulinemia

Cryoimmunoglobulinaemia

Burkitt Lymphoma

Burkitt'S Lymphoma

BL

Burkitt Lymphoma, Somatic

Burkitt Lymphoma/Leukaemia

Burkitt'S Tumor

Burkitt'S Tumor Or Lymphoma

Malignant Lymphoma, Burkitt'S Type

Small Non-Cleaved Cell Lymphoma, Burkitt'S Type

Small Non-Cleaved Cell Lymphoma

Burkitt Tumor

Burkitts Lymphoma

Lymphoma, Small Noncleaved-Cell

Burkitt Tumour

Diffuse Small Noncleaved Malignant Burkitt Lymphoma

Malignant Burkitt Lymphoma

“Burkitt-Like” Lymphoma

Undifferentiated Burkitt Lymphoma

Small Noncleaved Cell Burkitt Lymphoma

Histiocytic And Dendritic Cell Cancer

Histiocytic And Dendritic Cell

Parapharyngeal Meningioma

Primary Parapharyngeal Meningioma

Smooth Muscle Tumor
Agammaglobulinemia

Hypogammaglobulinemia

Ighm

Mu Heavy Chain Deficiency

Mu-Heavy Chain Disease

Mu-Hcd

Mu-Chain Disease

Oral Hairy Leukoplakia

Hairy Leukoplakia

Leukoplakia, Hairy

Hairy Leucoplakia

Follicular Lymphoma

Lymphoma, Follicular

Lymphoma Follicular

Brill-Symmers' Disease

Large Cell Follicular Non-Hodgkin Lymphoma

Diffuse Follicle Centre Lymphoma

Diffuse Follicular Lymphoma Nos

Follicular Nodular Non-Hodgkin Lymphoma, Unspecified

Follicular Large Cell Cleaved Or Noncleaved Lymphoma

Large Cell Follicular Noncleaved Lymphoma

Follicular Lymphoma With Or Without Diffuse Areas

Histiocytic Follicular Lymphoma

Histiocytic Nodular Lymphoma

Histiocytic Nodular Malignant Lymphoma

Large Cell Follicular Lymphoma

Large Cell Noncleaved Follicular Lymphoma

Large Cell Noncleaved Follicular Malignant Lymphoma

Nodular Reticulum Cell Sarcoma

Noncleaved Follicular Lymphoma

Cerebellopontine Angle Primitive Neuroectodermal Tumor

Cerebellopontine Angle Pnet

B-Cell Lymphoma

Lymphoma, B-Cell

B-Cell Lymphomas

B-Cell Lymphocytic Neoplasm

Lymphoma B-Cell

B-Cell Lymphoma Nos

Endobronchial Leiomyoma
Liver Leiomyoma

Leiomyoma Of The Liver

Langerhans Cell Sarcoma

Malignant Langerhans Cell Sarcoma

Systemic Epstein-Barr Virus Positive T-Cell Lymphoma Of Childhood

Ebv-Positive T-Cell Lymphoproliferative Disorder Of Childhood

Systemic Epstein-Barr Virus-Positive T-Cell Lymphoma Of Childhood

Systemic Ebv-Positive T-Cell Lymphoma Of Childhood

Systemic Ebv+ T-Cell Lymphoma Of Childhood

Acquired Immunodeficiency Syndrome

Acquired Immune Deficiency Syndrome

AIDS

Acquired Immune Deficiency

Acquired Immunodeficiency

Acquired Immunodeficiency Due To Protein Loss

Transient Hypogammaglobulinemia Of Infancy

Immunoglobulin Maturational Delay

Thi - [Transient Hypogammaglobulinaemia Of Infancy]

Lymphoma

Lymphoid Cancer

Lymphomas

Lymphoid Cancers

Lymphoid Neoplasm

Lymphoma Nos

Nhl - [Non-Hodgkin Lymphoma]

Non-Hodgkin Lymphoma

Non-Hodgkin Lymphoma, Nos

Non-Hodgkin Malignant Lymphoma Nos

Sarcoma

Connective And Soft Tissue Neoplasm

Tumor Of Soft Tissue And Skeleton

Sarcomas

Sarcoma - Category

B Cell Deficiency

Immunoglobulin Heavy Chain Deficiency

B Cell Deficiencies

Immunoglobulin Heavy Chain Deletion

Humoral Immune Defect

Angioimmunoblastic T-Cell Lymphoma

Immunoblastic Lymphadenopathy

Lymphogranulomatosis X

T-Cell Lymphoma, Aild Type

Aitl

Ailt

Angioimmunoblastic Lymphadenopathy

Aild - [Angioimmunoblastic Lymphadenopathy With Dysproteinaemia]

Angioimmunoblastic Lymphoma

Liver Inflammatory Pseudotumor

Inflammatory Pseudotumor Of The Liver

Liver Inflammatory Myofibroblastic Tumor

Bladder Lymphoma

Lymphoma Of The Urinary Bladder

Hemangioma Of Spleen

Splenic Hemangioma

Retroperitoneal Lymphoma
Autoimmune Disease

Autoimmune Diseases

Autoimmune Hypersensitivity Disease

Hypersensitivity Reaction Type Ii Disease

Type Ii Hypersensitivity Reaction Disease

Transient Hypogammaglobulinemia
Composite Lymphoma

Composite Hodgkin And Non-Hodgkin Lymphoma

Brain Sarcoma

Sarcoma Of The Brain

Nodular Episcleritis
Sarcoid Meningitis

Meningitis In Sarcoidosis

Marginal Zone B-Cell Lymphoma

Marginal Zone Lymphoma

Mzl

Mucosa-Associated Lymphoid Tissue Lymphoma

Lymphoepithelioma-Like Carcinoma

Lymphoepithelial Carcinoma

Nasopharyngeal Type Undifferentiated Carcinoma

Nodal Marginal Zone Lymphoma

Mucosa-Associated Lymphoid Tissue Lymphoma

Monocytoid B-Cell Lymphoma

Polyclonal Hypergammaglobulinemia

Polyclonal Gammopathy

Human Immunodeficiency Virus Infectious Disease

Hiv Infections

Castleman Disease

Angiofollicular Ganglionic Hyperplasia

Angiofollicular Lymph Hyperplasia

Giant Lymph Node Hyperplasia

Castleman'S Disease

Angiofollicular Lymph Node Hyperplasia

Lymphoid Hamartoma

Benign Giant Lymphoma

Angiolymphoid Hyperplasia

Lymphoid Interstitial Pneumonia

Lymphocytic Interstitial Pneumonia

Lip Disease

Lip Diseases

LIP

Disease Of Lips

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

Agammaglobulinemia 4, Autosomal Recessive

Agammaglobulinemia 4

AGM4

Agammaglobulinemia, Autosomal Recessive, Due To Blnk Defect

B Cell Linker Protein Deficiency

B-Cell Linker Protein Deficiency

Blnk Deficiency

Agammaglobulinemia Autosomal Recessive Due To Blnk Defect

Agammaglobulinemia, Type 4, Autosomal Recessive

Thymus Large Cell Carcinoma

Large Cell Carcinoma Of The Thymus

Thymic Large Cell Neuroendocrine Carcinoma

Chronic Wasting Disease

Wasting Disease, Chronic

Inflammatory Myofibroblastic Tumor

Inflammatory Fibrosarcoma

Breast Myofibroblastoma
Malaria

Malaria, Susceptibility To

Malaria, Resistance To

Malaria, Cerebral

Cerebral Malaria

Malaria, Severe, Susceptibility To

Malaria, Severe, Resistance To

Malaria, Cerebral, Susceptibility To

Induced Malaria

Malaria, Vivax, Protection Against

Malaria, Severe

Malaria, Cerebral, Reduced Risk Of

Malaria, Protection Against

Resistance To Malaria Due To G6pd Deficiency

Malaria Due To G6pd Deficiency

Malarial Encephalitis

CM

Malaria Cerebral

Susceptibility To Malaria

Acute Pernicious Fever

Aestivo-Autumnal Fever

Aestivo Autumnal Malaria

Chagres Fever

Continued Malaria Fever

Estivo-Autumnal Fever

Estivo-Autumnal Malaria

Estivo-Autumnal Malarial Fever

Falciparum Fever

Malignant Tertian Fever

Malignant Tertian Malaria

Pernicious Intermittent Fever

Pernicious Malaria

Quotidian Malaria

Subtertian Fever

Subtertian Malaria Fever

Subtertian Malignant Tertian Malaria

Tropical Malaria

Algid Malaria

Bilious Haemoglobinuric Fever

Black Water Fever

Blackwater Fever

Malarial Blackwater Fever

Severe Malarial Falciparum

West African Fever

Malarial Haematinuria

Haemoglobinuric Fever

Haemoglobinuric Malaria

Severe Plasmodium Falciparum Malaria

Malarial Haemoglobinuria

Malarial Haematuria

Falciparum Malaria [Malignant Tertian]

Malaria Tropica

Malarial Shock

Chagres Virus Disease

Malignant Malaria

Mtm - [Malignant Tertian Malaria]

Tm -[Malignant Tertian Malaria]

Panama Fever

St - [Subtertian Malaria]

Malarial Quotidian

Benign Tertian Malaria

Tertian Ague

Vivax Fever

Plasmodium Vivax Malaria Nos

Btm - [Benign Tertian Malaria]

Bt - [Benign Tertian Malaria]

Vivax Malaria

Benign Tertian Vivax Malaria

Tertian Malaria

Quartan Malaria

Quartan Ague

Quartan Fever

Plasmodium Malariae Malaria Nos

Quartan Malarial

Malaria By Plasmodium Malariae

Malariae Malaria

Ovale Tertian Malaria

Plasmodium Ovale Fever

Malaria Fever By Plasmodium Ovale

Ovale Malaria

Malaria By Plasmodium Ovale

Malarial Ovale

Marsh Fever

Remittent Congestive Fever

Coastal Fever

Remittent Gastric Fever

Miasmatic Fever

Congestive Remittent Fever

Intermittent Fever

Jungle Fever

Paludism

Cameroon Fever

Ague

Corsican Fever

Intermittent Bilious Fever

Disease Due To Plasmodiidae

Malarial Fever

Plasmodiosis

Remittent Fever

Roman Fever

Malaria Fever Nos

Malaria Nos

Paludal Fever

Clinically Diagnosed Malaria

Clinically Diagnosed Malaria Without Parasitological Confirmation

Congestive Fever

Malarial Cachexia

Marsh Cachexia

Paludal Cachexia

Recurrent Malaria

Remittent Malaria

Ureteral Lymphoma

Lymphoma Of Ureter

Ureter Lymphoma

Anemia, Autoimmune Hemolytic

Autoimmune Hemolytic Anemia

Idiopathic Autoimmune Hemolytic Anemia

Immuno-Hemolytic Anemia

Anemia, Hemolytic, Autoimmune

Autoimmune Haemolytic Anaemia

Autoimmune Hemolytic Anaemia

Acquired Autoimmune Hemolytic Anemia

Anemia Hemolytic Autoimmune

Familial Auto-Immune Hemolytic Anemia

Aha

Aiha

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

Immune Deficiency Disease

Immunodeficiency

Primary Immunodeficiency

Primary Immunodeficiency Disease

Immunologic Deficiency Syndromes

Hypoimmunity

Immune Deficiency Disorder

Immunodeficiency Syndrome

Immune Disorder

Primary Immune Deficiency Disorder

Immune System Diseases

Human Immunodeficiency Virus Infection

Hiv - [Human Immunodeficiency Virus Infection]

Hiv Positive Nos

Hiv Disease

Acquired Immune Deficiency Syndrome-Related Complex

Aids-Like Syndrome

Aids-Related Complex Nos

Arc - [Aids-Related Complex]

Immunodeficiency Due To Human Immunodeficiency Virus Infection

Unspecified Human Immunodeficiency Virus Disease

Hiv Disease Nos

Human Immunodeficiency Virus Positive Nos

Hiv Nos

Deficiency Of Complement Initial Pathway

Deficiency Of Complement Terminal Pathway

Cfdd - [Complement Factor D Deficiency]

Immunodeficiency With Nk-Cell - [Natural-Killer Cell] Deficiency

Nonfamilial Hypogammaglobulinaemia

Common Variable Immune Deficiency

Nonfamilial Agammaglobulinaemia

Common Variable Agammaglobulinaemia

Agammaglobulinaemia Nos

Agammaglobulinaemia Antibody Deficiency Syndrome

Hypogammaglobulinaemia Antibody Deficiency Syndrome

Acquired Agammaglobulinaemia Nos

Hypogammaglobulinaemia Nos

Hyper Igm

Mature B-Cell Neoplasm

Mature B-Cell Lymphocytic Neoplasm

Neoplasm Of Mature B-Cells

Mature B-Cell Non-Hodgkin Neoplasm With Leukaemic Behaviour

Mature T-Cell And Nk-Cell Lymphoma

Mature T-Cell And Natural Killer Cell Lymphoma

Nk-T Cell Lymphoma

Renal Pelvis Transitional Cell Carcinoma

Urothelial Cell Carcinoma Of Renal Pelvis

Renal Pelvis Urothelial Carcinoma

Transitional Cell Carcinoma Of Renal Pelvis

Subacute Lymphocytic Thyroiditis
Esophageal Tuberculosis

Tuberculosis Of Esophagus

Potocki-Shaffer Syndrome

Proximal 11p Deletion Syndrome

Chromosome 11p11.2 Deletion Syndrome

Pss

11p11.2 Deletion

P11pds

Defect11 Syndrome

Deletion Of Chromosome 11p11.2

POSHS

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

Liver Leiomyosarcoma

Leiomyosarcoma Of The Liver

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

T-Cell Acute Lymphoblastic Leukemia

T-Cell Leukemia

Acute T Cell Leukemia

Precursor T Lymphoblastic Leukemia

Precursor T-Lymphoblastic Lymphoma/Leukemia

T Acute Lymphoblastic Leukemia

T-Cell Acute Lymphocytic Leukaemia

T-Cell Lymphoblastic Leukemia/Lymphoma

Leukemia T-Cell

Leukemia, T-Cell

Leukemia, Acute, Lymphoblastic, T-Cell

Leukemia, T-Cell Acute Lymphoblastic

Leukemia, Acute T-Cell

Precursor T-Cell Lymphoblastic Leukemia-Lymphoma

Precursor T-Cell Lymphoblastic Lymphoma

Precursor T Cell Lymphoblastic Leukemia/Lymphoblastic Lymphoma

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
Macaca fascicularis CR2 NCBI
Mus musculus CR2 NCBI
Macaca mulatta CR2 NCBI