# Complement component 4B (Chido blood group)

> mammalian protein found in Homo sapiens

**Wikidata**: [Q21102479](https://www.wikidata.org/wiki/Q21102479)  
**Source**: https://4ort.xyz/entity/complement-component-4b-chido-blood-group--q21102479


## References

1. UniProt
2. [InterPro Release 71.0](http://www.ebi.ac.uk/interpro/protein/P0C0L5)
3. Q20641742
4. [GOA](http://www.ebi.ac.uk/QuickGO/annotations?geneProductId=UniProtKB:P0C0L5)
5. [Substitution of a single amino acid (aspartic acid for histidine) converts the functional activity of human complement C4B to C4A](http://www.ebi.ac.uk/QuickGO/annotations?geneProductId=UniProtKB:P0C0L5)
6. [GOA](http://www.ebi.ac.uk/QuickGO/annotations?protein=P0C0L5&geneProductId=UniProtKB:P0C0L5)
7. [Proteomic analysis of podocyte exosome-enriched fraction from normal human urine](http://www.ebi.ac.uk/QuickGO/annotations?protein=P0C0L5&geneProductId=UniProtKB:P0C0L5)
8. [In-depth proteomic analyses of exosomes isolated from expressed prostatic secretions in urine](http://www.ebi.ac.uk/QuickGO/annotations?protein=P0C0L5&geneProductId=UniProtKB:P0C0L5)
9. [Proteomic analysis of microvesicles from plasma of healthy donors reveals high individual variability](http://www.ebi.ac.uk/QuickGO/annotations?protein=P0C0L5&geneProductId=UniProtKB:P0C0L5)
10. [Human colostrum: identification of minor proteins in the aqueous phase by proteomics](http://www.ebi.ac.uk/QuickGO/annotations?protein=P0C0L5&geneProductId=UniProtKB:P0C0L5)
11. [Substitution of a single amino acid (aspartic acid for histidine) converts the functional activity of human complement C4B to C4A](http://www.ebi.ac.uk/QuickGO/annotations?protein=P0C0L5&geneProductId=UniProtKB:P0C0L5)
12. [Complement regulator C4BP binds to Staphylococcus aureus and decreases opsonization](http://www.ebi.ac.uk/QuickGO/annotations?protein=P0C0L5&geneProductId=UniProtKB:P0C0L5)
13. [Complement regulator C4BP binds to Staphylococcus aureus and decreases opsonization](http://www.ebi.ac.uk/QuickGO/annotations?geneProductId=UniProtKB:P0C0L5)
14. [Human colostrum: identification of minor proteins in the aqueous phase by proteomics](http://www.ebi.ac.uk/QuickGO/annotations?geneProductId=UniProtKB:P0C0L5)
15. [In-depth proteomic analyses of exosomes isolated from expressed prostatic secretions in urine](http://www.ebi.ac.uk/QuickGO/annotations?geneProductId=UniProtKB:P0C0L5)
16. [Proteomic analysis of microvesicles from plasma of healthy donors reveals high individual variability](http://www.ebi.ac.uk/QuickGO/annotations?geneProductId=UniProtKB:P0C0L5)
17. [Phylogenetic-based propagation of functional annotations within the Gene Ontology consortium](http://www.ebi.ac.uk/QuickGO/annotations?geneProductId=UniProtKB:P0C0L5)
18. [Complement classical pathway components are all important in clearance of apoptotic and secondary necrotic cells](http://www.ebi.ac.uk/QuickGO/annotations?geneProductId=UniProtKB:P0C0L5)
19. Ensembl Release 99