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CD55 molecule (Cromer blood group)

Summary

Gene Symbol

Cd55

Organism

Cavia porcellus (domestic guinea pig)

External Links

NCBI Gene: 100379575
PubChem: 100379575

Annotation

Keyword

Alternative splicing
Cell membrane
Complement pathway
Disulfide bond
GPI-anchor
Reference proteome
Repeat
Secreted
Signal
Sushi

Proteins

Displaying **all 2** entries
UniProt	Protein Name
Q5TYM3
Q60401

Annotation information from UniProt.

Gene Ontology (GO)

Displaying **all 5** entries
GO Term	Evidence Code	PMID
T cell mediated immunity	IEA	30032202
complement activation, classical pathway
innate immune response
negative regulation of complement activation
negative regulation of complement activation, classical pathway	IEA	30032202

GO Hierarchy

biological process

immune system process [inference]

immune effector process [inference]

leukocyte mediated immunity [inference]

lymphocyte mediated immunity [inference]

T cell mediated immunity

complement activation [inference]

complement activation, classical pathway

activation of immune response [inference]

complement activation [inference]

complement activation, classical pathway

immune response [inference]

adaptive immune response [inference]

adaptive immune response based on somatic recombination of immune receptors built from immunoglobulin superfamily domains [inference]

T cell mediated immunity

humoral immune response [inference]

complement activation [inference]

complement activation, classical pathway

innate immune response

biological process involved in interspecies interaction between organisms [inference]

response to other organism [inference]

defense response to other organism [inference]

innate immune response

response to stimulus [inference]

response to stress [inference]

defense response [inference]

defense response to other organism [inference]

innate immune response

immune response [inference]

adaptive immune response [inference]

adaptive immune response based on somatic recombination of immune receptors built from immunoglobulin superfamily domains [inference]

T cell mediated immunity

humoral immune response [inference]

complement activation [inference]

complement activation, classical pathway

innate immune response

response to external stimulus [inference]

response to external biotic stimulus [inference]

response to other organism [inference]

defense response to other organism [inference]

innate immune response

response to biotic stimulus [inference]

response to external biotic stimulus [inference]

response to other organism [inference]

defense response to other organism [inference]

innate immune response

biological regulation [inference]

regulation of biological process [inference]

regulation of immune system process [inference]

negative regulation of immune system process [inference]

negative regulation of immune effector process [inference]

negative regulation of leukocyte mediated immunity [inference]

negative regulation of lymphocyte mediated immunity [inference]

negative regulation of B cell mediated immunity [inference]

negative regulation of immunoglobulin mediated immune response [inference]

negative regulation of humoral immune response mediated by circulating immunoglobulin [inference]

negative regulation of complement activation, classical pathway

negative regulation of complement activation

negative regulation of complement activation, classical pathway

negative regulation of immune response [inference]

negative regulation of adaptive immune response [inference]

negative regulation of adaptive immune response based on somatic recombination of immune receptors built from immunoglobulin superfamily domains [inference]

negative regulation of B cell mediated immunity [inference]

negative regulation of immunoglobulin mediated immune response [inference]

negative regulation of humoral immune response mediated by circulating immunoglobulin [inference]

negative regulation of complement activation, classical pathway

negative regulation of humoral immune response [inference]

negative regulation of humoral immune response mediated by circulating immunoglobulin [inference]

negative regulation of complement activation, classical pathway

negative regulation of complement activation

negative regulation of complement activation, classical pathway

positive regulation of immune system process [inference]

positive regulation of immune response [inference]

activation of immune response [inference]

complement activation [inference]

complement activation, classical pathway

regulation of immune effector process [inference]

negative regulation of immune effector process [inference]

negative regulation of leukocyte mediated immunity [inference]

negative regulation of lymphocyte mediated immunity [inference]

negative regulation of B cell mediated immunity [inference]

negative regulation of immunoglobulin mediated immune response [inference]

negative regulation of humoral immune response mediated by circulating immunoglobulin [inference]

negative regulation of complement activation, classical pathway

negative regulation of complement activation

negative regulation of complement activation, classical pathway

regulation of leukocyte mediated immunity [inference]

negative regulation of leukocyte mediated immunity [inference]

negative regulation of lymphocyte mediated immunity [inference]

negative regulation of B cell mediated immunity [inference]

negative regulation of immunoglobulin mediated immune response [inference]

negative regulation of humoral immune response mediated by circulating immunoglobulin [inference]

negative regulation of complement activation, classical pathway

regulation of lymphocyte mediated immunity [inference]

negative regulation of lymphocyte mediated immunity [inference]

negative regulation of B cell mediated immunity [inference]

negative regulation of immunoglobulin mediated immune response [inference]

negative regulation of humoral immune response mediated by circulating immunoglobulin [inference]

negative regulation of complement activation, classical pathway

regulation of B cell mediated immunity [inference]

negative regulation of B cell mediated immunity [inference]

negative regulation of immunoglobulin mediated immune response [inference]

negative regulation of humoral immune response mediated by circulating immunoglobulin [inference]

negative regulation of complement activation, classical pathway

regulation of immunoglobulin mediated immune response [inference]

negative regulation of immunoglobulin mediated immune response [inference]

negative regulation of humoral immune response mediated by circulating immunoglobulin [inference]

negative regulation of complement activation, classical pathway

regulation of humoral immune response mediated by circulating immunoglobulin [inference]

negative regulation of humoral immune response mediated by circulating immunoglobulin [inference]

negative regulation of complement activation, classical pathway

regulation of complement activation, classical pathway [inference]

negative regulation of complement activation, classical pathway

regulation of complement activation [inference]

regulation of complement activation, classical pathway [inference]

negative regulation of complement activation, classical pathway

negative regulation of complement activation

negative regulation of complement activation, classical pathway

regulation of immune response [inference]

regulation of adaptive immune response [inference]

negative regulation of adaptive immune response [inference]

negative regulation of adaptive immune response based on somatic recombination of immune receptors built from immunoglobulin superfamily domains [inference]

negative regulation of B cell mediated immunity [inference]

negative regulation of immunoglobulin mediated immune response [inference]

negative regulation of humoral immune response mediated by circulating immunoglobulin [inference]

negative regulation of complement activation, classical pathway

regulation of adaptive immune response based on somatic recombination of immune receptors built from immunoglobulin superfamily domains [inference]

regulation of B cell mediated immunity [inference]

negative regulation of B cell mediated immunity [inference]

negative regulation of immunoglobulin mediated immune response [inference]

negative regulation of humoral immune response mediated by circulating immunoglobulin [inference]

negative regulation of complement activation, classical pathway

regulation of immunoglobulin mediated immune response [inference]

negative regulation of immunoglobulin mediated immune response [inference]

negative regulation of humoral immune response mediated by circulating immunoglobulin [inference]

negative regulation of complement activation, classical pathway

regulation of humoral immune response mediated by circulating immunoglobulin [inference]

negative regulation of humoral immune response mediated by circulating immunoglobulin [inference]

negative regulation of complement activation, classical pathway

regulation of complement activation, classical pathway [inference]

negative regulation of complement activation, classical pathway

negative regulation of adaptive immune response based on somatic recombination of immune receptors built from immunoglobulin superfamily domains [inference]

negative regulation of B cell mediated immunity [inference]

negative regulation of immunoglobulin mediated immune response [inference]

negative regulation of humoral immune response mediated by circulating immunoglobulin [inference]

negative regulation of complement activation, classical pathway

regulation of humoral immune response [inference]

negative regulation of humoral immune response [inference]

negative regulation of humoral immune response mediated by circulating immunoglobulin [inference]

negative regulation of complement activation, classical pathway

negative regulation of complement activation

negative regulation of complement activation, classical pathway

regulation of humoral immune response mediated by circulating immunoglobulin [inference]

negative regulation of humoral immune response mediated by circulating immunoglobulin [inference]

negative regulation of complement activation, classical pathway

regulation of complement activation, classical pathway [inference]

negative regulation of complement activation, classical pathway

regulation of complement activation [inference]

regulation of complement activation, classical pathway [inference]

negative regulation of complement activation, classical pathway

negative regulation of complement activation

negative regulation of complement activation, classical pathway

negative regulation of immune response [inference]

negative regulation of adaptive immune response [inference]

negative regulation of adaptive immune response based on somatic recombination of immune receptors built from immunoglobulin superfamily domains [inference]

negative regulation of B cell mediated immunity [inference]

negative regulation of immunoglobulin mediated immune response [inference]

negative regulation of humoral immune response mediated by circulating immunoglobulin [inference]

negative regulation of complement activation, classical pathway

negative regulation of humoral immune response [inference]

negative regulation of humoral immune response mediated by circulating immunoglobulin [inference]

negative regulation of complement activation, classical pathway

negative regulation of complement activation

negative regulation of complement activation, classical pathway

positive regulation of immune response [inference]

activation of immune response [inference]

complement activation [inference]

complement activation, classical pathway

positive regulation of biological process [inference]

positive regulation of immune system process [inference]

positive regulation of immune response [inference]

activation of immune response [inference]

complement activation [inference]

complement activation, classical pathway

positive regulation of response to stimulus [inference]

positive regulation of immune response [inference]

activation of immune response [inference]

complement activation [inference]

complement activation, classical pathway

negative regulation of biological process [inference]

negative regulation of immune system process [inference]

negative regulation of immune effector process [inference]

negative regulation of leukocyte mediated immunity [inference]

negative regulation of lymphocyte mediated immunity [inference]

negative regulation of B cell mediated immunity [inference]

negative regulation of immunoglobulin mediated immune response [inference]

negative regulation of humoral immune response mediated by circulating immunoglobulin [inference]

negative regulation of complement activation, classical pathway

negative regulation of complement activation

negative regulation of complement activation, classical pathway

negative regulation of immune response [inference]

negative regulation of adaptive immune response [inference]

negative regulation of adaptive immune response based on somatic recombination of immune receptors built from immunoglobulin superfamily domains [inference]

negative regulation of B cell mediated immunity [inference]

negative regulation of immunoglobulin mediated immune response [inference]

negative regulation of humoral immune response mediated by circulating immunoglobulin [inference]

negative regulation of complement activation, classical pathway

negative regulation of humoral immune response [inference]

negative regulation of humoral immune response mediated by circulating immunoglobulin [inference]

negative regulation of complement activation, classical pathway

negative regulation of complement activation

negative regulation of complement activation, classical pathway

negative regulation of response to stimulus [inference]

negative regulation of immune response [inference]

negative regulation of adaptive immune response [inference]

negative regulation of adaptive immune response based on somatic recombination of immune receptors built from immunoglobulin superfamily domains [inference]

negative regulation of B cell mediated immunity [inference]

negative regulation of immunoglobulin mediated immune response [inference]

negative regulation of humoral immune response mediated by circulating immunoglobulin [inference]

negative regulation of complement activation, classical pathway

negative regulation of humoral immune response [inference]

negative regulation of humoral immune response mediated by circulating immunoglobulin [inference]

negative regulation of complement activation, classical pathway

negative regulation of complement activation

negative regulation of complement activation, classical pathway

regulation of response to stimulus [inference]

positive regulation of response to stimulus [inference]

positive regulation of immune response [inference]

activation of immune response [inference]

complement activation [inference]

complement activation, classical pathway

negative regulation of response to stimulus [inference]

negative regulation of immune response [inference]

negative regulation of adaptive immune response [inference]

negative regulation of adaptive immune response based on somatic recombination of immune receptors built from immunoglobulin superfamily domains [inference]

negative regulation of B cell mediated immunity [inference]

negative regulation of immunoglobulin mediated immune response [inference]

negative regulation of humoral immune response mediated by circulating immunoglobulin [inference]

negative regulation of complement activation, classical pathway

negative regulation of humoral immune response [inference]

negative regulation of humoral immune response mediated by circulating immunoglobulin [inference]

negative regulation of complement activation, classical pathway

negative regulation of complement activation

negative regulation of complement activation, classical pathway

regulation of immune response [inference]

regulation of adaptive immune response [inference]

negative regulation of adaptive immune response [inference]

negative regulation of adaptive immune response based on somatic recombination of immune receptors built from immunoglobulin superfamily domains [inference]

negative regulation of B cell mediated immunity [inference]

negative regulation of immunoglobulin mediated immune response [inference]

negative regulation of humoral immune response mediated by circulating immunoglobulin [inference]

negative regulation of complement activation, classical pathway

regulation of adaptive immune response based on somatic recombination of immune receptors built from immunoglobulin superfamily domains [inference]

regulation of B cell mediated immunity [inference]

negative regulation of B cell mediated immunity [inference]

negative regulation of immunoglobulin mediated immune response [inference]

negative regulation of humoral immune response mediated by circulating immunoglobulin [inference]

negative regulation of complement activation, classical pathway

regulation of immunoglobulin mediated immune response [inference]

negative regulation of immunoglobulin mediated immune response [inference]

negative regulation of humoral immune response mediated by circulating immunoglobulin [inference]

negative regulation of complement activation, classical pathway

regulation of humoral immune response mediated by circulating immunoglobulin [inference]

negative regulation of humoral immune response mediated by circulating immunoglobulin [inference]

negative regulation of complement activation, classical pathway

regulation of complement activation, classical pathway [inference]

negative regulation of complement activation, classical pathway

negative regulation of adaptive immune response based on somatic recombination of immune receptors built from immunoglobulin superfamily domains [inference]

negative regulation of B cell mediated immunity [inference]

negative regulation of immunoglobulin mediated immune response [inference]

negative regulation of humoral immune response mediated by circulating immunoglobulin [inference]

negative regulation of complement activation, classical pathway

regulation of humoral immune response [inference]

negative regulation of humoral immune response [inference]

negative regulation of humoral immune response mediated by circulating immunoglobulin [inference]

negative regulation of complement activation, classical pathway

negative regulation of complement activation

negative regulation of complement activation, classical pathway

regulation of humoral immune response mediated by circulating immunoglobulin [inference]

negative regulation of humoral immune response mediated by circulating immunoglobulin [inference]

negative regulation of complement activation, classical pathway

regulation of complement activation, classical pathway [inference]

negative regulation of complement activation, classical pathway

regulation of complement activation [inference]

regulation of complement activation, classical pathway [inference]

negative regulation of complement activation, classical pathway

negative regulation of complement activation

negative regulation of complement activation, classical pathway

negative regulation of immune response [inference]

negative regulation of adaptive immune response [inference]

negative regulation of adaptive immune response based on somatic recombination of immune receptors built from immunoglobulin superfamily domains [inference]

negative regulation of B cell mediated immunity [inference]

negative regulation of immunoglobulin mediated immune response [inference]

negative regulation of humoral immune response mediated by circulating immunoglobulin [inference]

negative regulation of complement activation, classical pathway

negative regulation of humoral immune response [inference]

negative regulation of humoral immune response mediated by circulating immunoglobulin [inference]

negative regulation of complement activation, classical pathway

negative regulation of complement activation

negative regulation of complement activation, classical pathway

positive regulation of immune response [inference]

activation of immune response [inference]

complement activation [inference]

complement activation, classical pathway

Displaying **all 3** entries
GO Term	Evidence Code	PMID
extracellular space	IEA	30032202
plasma membrane	IEA	30032202
side of membrane

GO Hierarchy

cellular component

cellular anatomical entity [inference]

extracellular space

membrane [inference]

plasma membrane

side of membrane

Gene Ontology information from NCBI Gene and UniProt.

OrthoDB (Group)

Group level

Eukaryota

Group Name

procollagen C-endopeptidase enhancer a

Functional Category

M: Cell wall/membrane/envelope biogenesis
O: Posttranslational modification, protein turnover, chaperones
T: Signal transduction mechanisms

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Last updated: December 8, 2025

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