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GENE AND PROTEIN SUMMARY

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Gene name

DDX50

Description

DEAD (Asp-Glu-Ala-Asp) box polypeptide 50

Protein class

Enzymes, Mapped to UniProt SWISS-PROT

Protein evidence

High

Entrez gene summary

DEAD box proteins, characterized by the conserved motif Asp-Glu-Ala-Asp (DEAD), are putative RNA helicases. They are implicated in a number of cellular processes involving alteration of RNA secondary structure such as translation initiation, nuclear and mitochondrial splicing, and ribosome and spliceosome assembly. Based on their distribution patterns, some members of this DEAD box protein family are believed to be involved in embryogenesis, spermatogenesis, and cellular growth and division. This gene encodes a DEAD box enzyme that may be involved in ribosomal RNA synthesis or processing. This gene and DDX21, also called RH-II/GuA, have similar genomic structures and are in tandem orientation on chromosome 10, suggesting that the two genes arose by gene duplication in evolution. This gene has pseudogenes on chromosomes 2, 3 and 4. Alternative splicing of this gene generates multiple transcript variants, but the full length nature of all the other variants but one has not been defined. [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
0 with predicted signal peptide

SUBCELLULAR LOCATION SUMMARY

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Main location(s)

Nucleoli

Additional location(s)

Plasma membrane 

Staining summary

Staining of nucleoli in all three cell lines with additional staining of plasma membrane in U-2 OS.

Reliability (Single)

Antibodies in assay

HPA037388
 

NORMAL TISSUE & ORGAN SUMMARY

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Staining summary

Cells in squamous epithelia, neuronal cells of cerebral cortex and lateral ventricle showed moderate nucleolar positivity. Moderate cytoplasmic positivity was observed in urothelium. Other normal tissues were weakly stained or negative.

Tissue specificity

Staining in 30 out of 78 cell types

Reliability (Single)

Antibodies in assay

HPA037388
 

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 1
Male tissues 5
Urinary tract (kidney) 3
Skin and soft tissues 12
Endocrine tissues 3

Level of antibody staining





Strong
Moderate
Weak
Negative

CANCER TISSUE SUMMARY

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Staining summary

Antibody staining in 30% of the cancers

Antibodies in assay

HPA037388
 

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

 

HPA037388

A-431 Skin High

-

Weak
A-549 Lung Medium

-

CACO-2 Colon High

-

HEK 293 Embryonal kidney High

-

HeLa Cervix Medium

-

Hep-G2 Liver Medium

-

MCF-7 Pleural effusion High

-

PC-3 Bone marrow High

-

RT-4 Urinary bladder Medium

-

U-2 OS Bone High

-

Moderate
U-251 MG Brain High

-

Moderate

ANTIBODY SUMMARY

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Antibody

Clonality

Validation

HPA037388 pAb