Fields »

GENE AND PROTEIN SUMMARY

? »

Gene name

COX4I2

Description

cytochrome c oxidase subunit IV isoform 2 (lung)

Protein class

Mapped to UniProt SWISS-PROT, Potential transmembrane proteins, Transporters

Protein evidence

Medium

Entrez gene summary

Cytochrome c oxidase (COX), the terminal enzyme of the mitochondrial respiratory chain, catalyzes the electron transfer from reduced cytochrome c to oxygen. It is a heteromeric complex consisting of 3 catalytic subunits encoded by mitochondrial genes and multiple structural subunits encoded by nuclear genes. The mitochondrially-encoded subunits function in electron transfer, and the nuclear-encoded subunits may be involved in the regulation and assembly of the complex. This nuclear gene encodes isoform 2 of subunit IV. Isoform 1 of subunit IV is encoded by a different gene, however, the two genes show a similar structural organization. Subunit IV is the largest nuclear encoded subunit which plays a pivotal role in COX regulation. [provided by RefSeq, Jul 2008]

External links

Ensembl, UniProt, Entrez gene, neXtProt, Antibodypedia

No of splice variants

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

SUBCELLULAR LOCATION SUMMARY

? »

Show image »

Main location(s)

Nucleus but not nucleoli

Additional location(s)

Cytoplasm 

Staining summary

Staining of nucleus and cytoplasm in all three cell lines.

Reliability (Single)

Antibodies in assay

HPA029307
 

NORMAL TISSUE & ORGAN SUMMARY

? »

Show image »

Staining summary

Most of the normal tissues displayed weak to moderate cytoplasmic staining occasionally combined with nuclear or membranous positivity. Endothelial smooth muscle showed strong granular staining. Alveolar cells, liver, breast, the CNS and lymphoid tissues were negative.

Tissue specificity

Staining in 35 out of 80 cell types

Reliability (Single)

Antibodies in assay

HPA029307
 

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 1
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

? »

Staining summary

Antibody staining in 54% of the cancers

Antibodies in assay

HPA029307
 

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

? »

RNA evidence

Not detected
 

Cell line

Cell origin

RNA abundance

IH staining

IF intensity

HPA029307

HPA029307

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

ANTIBODY SUMMARY

? »

Antibody

Clonality

Validation

HPA029307 pAb