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GENE AND PROTEIN SUMMARY

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Gene name

C3

Description

complement component 3

Protein class

Candidate cardiovascular disease genes, Mapped to UniProt SWISS-PROT, Plasma proteins, Potential transmembrane proteins, Potentially secreted proteins

Protein evidence

High

Entrez gene summary

Complement component C3 plays a central role in the activation of complement system. Its activation is required for both classical and alternative complement activation pathways. People with C3 deficiency are susceptible to bacterial infection. [provided by RefSeq, Feb 2009]

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)

Nucleus but not nucleoli, Cytoplasm

Additional location(s)

 

Staining summary

Localized to the cytoplasm and nucleus.

Reliability (APE)

Medium

Antibodies in assay

HPA003563, CAB004209, HPA020432
 

NORMAL TISSUE & ORGAN SUMMARY

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Expression summary

Selective cytoplasmic and membranous expression in a subsets of different cell types and plasma.

Tissue specificity

Expressed in 18 out of 82 cell types

Reliability (APE)

Medium

Antibodies in assay

HPA003563, CAB004209, HPA020432
 

Organ

No of cell types

Protein expression

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

Level of annotated protein expression





High
Medium
Low
None

CANCER TISSUE SUMMARY

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Staining summary

Antibody staining in 58% of the cancers

Antibodies in assay

HPA003563, CAB004209, HPA020432
 

Tissue

Cancer staining

Protein
expression of
normal tissue

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

Tissue

Cancer staining

Protein
expression of
normal tissue

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

HPA003563

CAB004209

HPA020432

HPA003563

CAB004209

HPA020432

A-431 Skin High
NegativeNegativeModerate
A-549 Lung Medium
CACO-2 Colon Low
HEK 293 Embryonal kidney Low
HeLa Cervix Medium
Hep-G2 Liver High
MCF-7 Pleural effusion Low
PC-3 Bone marrow Not detected
RT-4 Urinary bladder Low
U-2 OS Bone Low
NegativeNegativeModerate
U-251 MG Brain Low
WeakNegativeWeak

ANTIBODY SUMMARY

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Antibody

Clonality

Validation

HPA003563 pAb
CAB004209 mAb
HPA020432 pAb