Fields »

GENE AND PROTEIN SUMMARY

? »

Gene name

MPP4

Description

membrane protein, palmitoylated 4 (MAGUK p55 subfamily member 4)

Protein class

Mapped to UniProt SWISS-PROT, SH3-domain containing proteins

Protein evidence

Medium

Entrez gene summary

This gene encodes a member of the membrane-associated guanylate kinase (MAGUK) protein family, with an N-terminal PDZ domain, a central src homology 3 region (SH3), and a C-terminal guanylate kinase-like (GUK) domain. The protein is localized to the outer limiting membrane in the retina, and is thought to function in photoreceptor polarity and the organization of specialized intercellular junctions. Alternatively spliced transcript variants have been described, but their biological validity has not been determined. [provided by RefSeq, Jul 2008]

External links

Ensembl, UniProt, Entrez gene, neXtProt, Antibodypedia

No of splice variants

8 in total
0 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, Vesicles 

Staining summary

Staining of nucleus but not nucleoli in all three cell lines with additional staining of cytoplasm in U-251 MG and vesicles in A-431 and U-2 OS.

Reliability (Single)

Antibodies in assay

HPA036387
 

NORMAL TISSUE & ORGAN SUMMARY

? »

Show image »

Staining summary

Cilia in the respiratory tract and fallopian tubes were distinctly stained. Lung macrophages, placental trophoblasts, prostate and adrenal cortical cells displayed moderate cytoplasmic and membranous positivity. Other normal tissues were in general negative.

Tissue specificity

Staining in 15 out of 79 cell types

Reliability (Single)

Antibodies in assay

HPA036387
 

Organ

No of cell types

Antibody staining

CNS (brain) 11
Hematopoietic (blood) 8
Liver and pancreas 4
Digestive (GI-tract) 12
Respiratory (lung) 4
Cardiovascular 1
Female tissues 12
Placenta 2
Male tissues 5
Urinary tract (kidney) 3
Skin and soft tissues 14
Endocrine tissues 3

Level of antibody staining





Strong
Moderate
Weak
Negative

CANCER TISSUE SUMMARY

? »

Staining summary

Antibody staining in 3% of the cancers

Antibodies in assay

HPA036387
 

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

Medium
 

Cell line

Cell origin

RNA abundance

IH staining

IF intensity

 

HPA036387

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 Low

-

RT-4 Urinary bladder Not detected

-

U-2 OS Bone Low

-

Weak
U-251 MG Brain Medium

-

Moderate

ANTIBODY SUMMARY

? »

Antibody

Clonality

Validation

HPA036387 pAb