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GENE AND PROTEIN SUMMARY

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Gene name

KCNJ2

Description

potassium inwardly-rectifying channel, subfamily J, member 2

Protein class

Mapped to UniProt SWISS-PROT, Potential transmembrane proteins, Transporters, Voltage-gated ion channels

Protein evidence

Medium

Entrez gene summary

Potassium channels are present in most mammalian cells, where they participate in a wide range of physiologic responses. The protein encoded by this gene is an integral membrane protein and inward-rectifier type potassium channel. The encoded protein, which has a greater tendency to allow potassium to flow into a cell rather than out of a cell, probably participates in establishing action potential waveform and excitability of neuronal and muscle tissues. Mutations in this gene have been associated with Andersen syndrome, which is characterized by periodic paralysis, cardiac arrhythmias, and dysmorphic features. [provided by RefSeq, Jul 2008]

External links

Ensembl, UniProt, Entrez gene, neXtProt, Antibodypedia

No of splice variants

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

SUBCELLULAR LOCATION SUMMARY

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Main location(s)

Cytoplasm

Additional location(s)

Nucleus, Nucleoli, Plasma membrane 

Staining summary

Staining of cytoplasm in all three cell lines. Additional staining of nucleoli and plasma membrane in A-431 and nucleus and cytoplasm in U-2 OS.

Reliability (Single)

Antibodies in assay

HPA029109
 

NORMAL TISSUE & ORGAN SUMMARY

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Staining summary

Most normal cells displayed moderate to strong cytoplasmic positivity with a few cases of membranous staining. Glial cells and lymphoid cells outside reaction centra were generally negative.

Tissue specificity

Staining in 76 out of 81 cell types

Reliability (Single)

Antibodies in assay

HPA029109
 

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 13
Placenta 2
Male tissues 5
Urinary tract (kidney) 3
Skin and soft tissues 13
Endocrine tissues 3

Level of antibody staining





Strong
Moderate
Weak
Negative

CANCER TISSUE SUMMARY

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Staining summary

Antibody staining in 94% of the cancers

Antibodies in assay

HPA029109
 

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

Low
 

Cell line

Cell origin

RNA abundance

IH staining

IF intensity

HPA029109

HPA029109

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

ANTIBODY SUMMARY

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Antibody

Clonality

Validation

HPA029109 pAb