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GENE AND PROTEIN SUMMARY

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Gene name

HOPX

Description

HOP homeobox

Protein class

Mapped to UniProt SWISS-PROT, Transcription factors

Protein evidence

High

Entrez gene summary

The protein encoded by this gene is a homeodomain protein that lacks certain conserved residues required for DNA binding. It was reported that choriocarcinoma cell lines and tissues failed to express this gene, which suggested the possible involvement of this gene in malignant conversion of placental trophoblasts. Studies in mice suggest that this protein may interact with serum response factor (SRF) and modulate SRF-dependent cardiac-specific gene expression and cardiac development. Multiple alternatively spliced transcript variants have been identified for this gene. [provided by RefSeq, Feb 2009]

External links

Ensembl, UniProt, Entrez gene, neXtProt, Antibodypedia

No of splice variants

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

SUBCELLULAR LOCATION SUMMARY

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Main location(s)

Cytoplasm

Additional location(s)

Vesicles 

Staining summary

Staining of cytoplasm in U-251 MG and A 431. Additonal staining of vesicles in U-251 MG.

Reliability (Single)

Antibodies in assay

HPA030180
 

NORMAL TISSUE & ORGAN SUMMARY

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Expression summary

Cytoplasmic expression at variable levels in several different cell types. Nuclear expression in squamous epithelia.

Tissue specificity

Expressed in 74 out of 81 cell types

Reliability (APE)

Low

Antibodies in assay

CAB018632, HPA030180
 

Organ

No of cell types

Protein expression

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 14
Endocrine tissues 3

Level of annotated protein expression





High
Medium
Low
None

CANCER TISSUE SUMMARY

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Staining summary

Antibody staining in 32% of the cancers

Antibodies in assay

CAB018632, HPA030180
 

Tissue

Cancer staining

Protein
expression of
normal tissue

Breast cancer
 
Carcinoid
 
Cervical cancer
 
 
Colorectal cancer
 
 
Endometrial cancer
 
 
Glioma
 
Head and neck cancer
 
 
Liver cancer
 
 
Lung cancer
 
 
Lymphoma
 
 
 

Tissue

Cancer staining

Protein
expression of
normal tissue

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

HPA030180

HPA030180

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

ANTIBODY SUMMARY

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Antibody

Clonality

Validation

CAB018632 pAb
HPA030180 pAb