Gene Ontology Classifications

Symbol
Name
ID

C4b
complement C4B (Chido blood group)
MGI:88228

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Automated description from the Alliance of Genome Resources (Release 7.4.0)

Predicted to enable carbohydrate binding activity and complement component C1q complex binding activity. Acts upstream of or within complement activation and immunoglobulin mediated immune response. Located in extracellular space. Is expressed in several structures, including hemolymphoid system; liver; reproductive system; retina; and yolk sac. Used to study systemic lupus erythematosus. Human ortholog(s) of this gene implicated in autistic disorder; autoimmune disease (multiple); complement deficiency (multiple); and renal cell carcinoma. Orthologous to several human genes including C4A (complement C4A (Chido/Rodgers blood group)) and C4B (complement C4B (Chido/Rodgers blood group)).

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Aspect

Category

Evidence

Gene Ontology Evidence Code Abbreviations:

Experimental:

EXP: Inferred from experiment
HMP: Inferred from high throughput mutant phenotype
HGI: Inferred from high throughput genetic interaction
HDA: Inferred from high throughput direct assay
HEP: Inferred from high throughput expression pattern
IDA: Inferred from direct assay
IEP: Inferred from expression pattern
IGI: Inferred from genetic interaction
IMP: Inferred from mutant phenotype
IPI: Inferred from physical interaction

Homology:

IAS: Inferred from ancestral sequence
IBA: Inferred from biological aspect of ancestor
IBD: Inferred from biological aspect of descendant
IKR: Inferred from key residues
IMR: Inferred from missing residues
IRD: Inferred from rapid divergence
ISA: Inferred from sequence alignment
ISM: Inferred from sequence model
ISO: Inferred from sequence orthology
ISS: Inferred from sequence or structural similarity

Automated:

IEA: Inferred from electronic annotation
RCA: Reviewed computational analysis

Other:

IC: Inferred by curator
NAS: Non-traceable author statement
ND: No biological data available
TAS: Traceable author statement

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Contributing Projects: Mouse Genome Database (MGD), Gene Expression Database (GXD), Mouse Models of Human Cancer database (MMHCdb) (formerly Mouse Tumor Biology (MTB)), Gene Ontology (GO)
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