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GENE AND PROTEIN SUMMARY

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Gene name

SLC17A4

Description

solute carrier family 17 (sodium phosphate), member 4

Protein class

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

Protein evidence

Low

Entrez gene summary

Phosphate homeostasis is maintained by regulating intake, intestinal absorption, bone deposition and resorption, and renal excretion of phosphate. The central molecule in the control of phosphate excretion from the kidney is the sodium/phosphate cotransporter NPT1 (SLC17A1; MIM 182308), which is located in the renal proximal tubule. NPT1 uses the transmembrane electrochemical potential gradient of sodium to transport phosphate across the cell membrane. SLC17A4 is a similar sodium/phosphate cotransporter in the intestinal mucosa that plays an important role in the absorption of phosphate from the intestine (summary by Shibui et al., 1999 [PubMed 10319585]).[supplied by OMIM, Feb 2011]

External links

Ensembl, UniProt, Entrez gene, neXtProt, Antibodypedia

No of splice variants

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

SUBCELLULAR LOCATION SUMMARY

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Main location(s)

Nucleus

Additional location(s)

Nucleoli, Cytoplasm 

Staining summary

Staining of nucleus in all three cell lines. Additional staining of cytoplasm in U-251 MG and A-431.

Reliability (Single)

Antibodies in assay

HPA030179
 

NORMAL TISSUE & ORGAN SUMMARY

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Staining summary

A majority of normal cells displayed moderate cytoplasmic positivity. Strong staining was observed in stomach, exocrine pancreas, thyroid and subsets of lymphoid cells. Alveolar cells, bile ducts, squamous epithelia, breast and cells in CNS were generally negative.

Tissue specificity

Staining in 39 out of 79 cell types

Reliability (Single)

Antibodies in assay

HPA030179
 

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 2
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 60% of the cancers

Antibodies in assay

HPA030179
 

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

HPA030179

HPA030179

A-431 Skin Not detected
Moderate
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 Low
Moderate
U-251 MG Brain Not detected
Weak

ANTIBODY SUMMARY

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Antibody

Clonality

Validation

HPA030179 pAb