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GENE AND PROTEIN SUMMARY

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Gene name

C5

Description

complement component 5

Protein class

Mapped to UniProt SWISS-PROT, Plasma proteins, Potential transmembrane proteins, Potentially secreted proteins

Protein evidence

Medium

Entrez gene summary

The protein encoded by this gene is the fifth component of complement, which plays an important role in inflammatory and cell killing processes. This protein is comprised of alpha and beta polypeptide chains that are linked by a disulfide bridge. An activation peptide, C5a, which is an anaphylatoxin that possesses potent spasmogenic and chemotactic activity, is derived from the alpha polypeptide via cleavage with a convertase. The C5b macromolecular cleavage product can form a complex with the C6 complement component, and this complex is the basis for formation of the membrane attack complex, which includes additional complement components. Mutations in this gene cause complement component 5 deficiency, a disease where patients show a propensity for severe recurrent infections. Defects in this gene have also been linked to a susceptibility to liver fibrosis and to rheumatoid arthritis. [provided by RefSeq, Jul 2008]

External links

Ensembl, UniProt, Entrez gene, neXtProt, Antibodypedia

No of splice variants

1 in total
0 with predicted TM region
1 with predicted signal peptide

SUBCELLULAR LOCATION SUMMARY

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Main location(s)

Additional location(s)

 

Staining summary

No staining was observed in any of the three cell lines.

Reliability (Single)

Antibodies in assay

HPA029339
 

NORMAL TISSUE & ORGAN SUMMARY

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Staining summary

A majority of the normal tissues were negative. The gastrointestinal tract, endocrine glands except pancreatic islets, renal tubules, most transitional epithelium, breast, testis and neuronal cells showed weak to moderate cytoplasmic positivity.

Tissue specificity

Staining in 36 out of 81 cell types

Reliability (Single)

Antibodies in assay

HPA029339
 

Organ

No of cell types

Antibody staining

CNS (brain) 11
Hematopoietic (blood) 8
Liver and pancreas 5
Digestive (GI-tract) 13
Respiratory (lung) 4
Cardiovascular 1
Female tissues 12
Placenta 2
Male tissues 5
Urinary tract (kidney) 3
Skin and soft tissues 14
Endocrine tissues 3

Level of antibody staining





Strong
Moderate
Weak
Negative

CANCER TISSUE SUMMARY

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Staining summary

Antibody staining in 10% of the cancers

Antibodies in assay

HPA029339
 

Tissue

Cancer staining

Normal tissue
staining

Breast cancer
 
Carcinoid
 
Cervical cancer
 
 
Colorectal cancer
 
 
Endometrial cancer
 
 
Glioma
 
Head and neck cancer
 
 
Liver cancer
 
 
Lung cancer
 
 
Lymphoma
 
 
 

Tissue

Cancer staining

Normal tissue
staining

Melanoma
 
Ovarian cancer
 
Pancreatic cancer
 
Prostate cancer
 
Renal cancer
 
Skin cancer
 
Stomach cancer
 
 
Testis cancer
 
Thyroid cancer
 
Urothelial cancer
 

Level of antibody staining





Strong
Moderate
Weak
Negative

CELL LINE SUMMARY

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RNA evidence

High
 

Cell line

Cell origin

RNA abundance

IH staining

IF intensity

HPA029339

HPA029339

A-431 Skin Low
Negative
A-549 Lung Medium
CACO-2 Colon Low
HEK 293 Embryonal kidney Low
HeLa Cervix Low
Hep-G2 Liver High
MCF-7 Pleural effusion Medium
PC-3 Bone marrow Medium
RT-4 Urinary bladder Low
U-2 OS Bone Low
Negative
U-251 MG Brain Low
Negative

ANTIBODY SUMMARY

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Antibody

Clonality

Validation

HPA029339 pAb