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GENE AND PROTEIN SUMMARY

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Gene name

IL18

Description

interleukin 18 (interferon-gamma-inducing factor)

Protein class

Candidate cancer biomarkers, Candidate cardiovascular disease genes, Mapped to UniProt SWISS-PROT, Plasma proteins

Protein evidence

High

Entrez gene summary

The protein encoded by this gene is a proinflammatory cytokine that augments natural killer cell activity in spleen cells, and stimulates interferon gamma production in T-helper type I cells. Alternatively spliced transcript variants encoding different isoforms have been found for this gene.[provided by RefSeq, Aug 2011]

External links

Ensembl, UniProt, Entrez gene, neXtProt, Antibodypedia

No of splice variants

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

SUBCELLULAR LOCATION SUMMARY

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Main location(s)

Nucleus

Additional location(s)

Cytoplasm, Golgi apparatus 

Staining summary

Mainly localized to the nucleus but also to the Golgi apparatus and cytoplasm.

Reliability (APE)

Medium

Antibodies in assay

HPA003980, CAB007772, CAB027385
 

NORMAL TISSUE & ORGAN SUMMARY

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Expression summary

Cytoplasmic and secreted expression in subsets of inflammatory cells. Cytoplasmic and nuclear expression in the intestine and squamous epithelium.

Tissue specificity

Expressed in 38 out of 82 cell types

Reliability (APE)

High

Antibodies in assay

HPA003980, CAB007772, CAB027385
 

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 51% of the cancers

Antibodies in assay

HPA003980, CAB007772, CAB027385
 

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

HPA003980

CAB007772

CAB027385

HPA003980

CAB007772

CAB027385

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

ANTIBODY SUMMARY

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Antibody

Clonality

Validation

HPA003980 pAb
CAB007772 mAb
CAB027385 mAb