Fields »

GENE AND PROTEIN SUMMARY

? »

Gene name

SP1

Description

Sp1 transcription factor

Protein class

Candidate cancer biomarkers, Mapped to UniProt SWISS-PROT, Transcription factors

Protein evidence

High

Entrez gene summary

The protein encoded by this gene is a zinc finger transcription factor that binds to GC-rich motifs of many promoters. The encoded protein is involved in many cellular processes, including cell differentiation, cell growth, apoptosis, immune responses, response to DNA damage, and chromatin remodeling. Post-translational modifications such as phosphorylation, acetylation, glycosylation, and proteolytic processing significantly affect the activity of this protein, which can be an activator or a repressor. Three transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Oct 2011]

External links

Ensembl, UniProt, Entrez gene, neXtProt, Antibodypedia

No of splice variants

4 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)

 

Staining summary

Localized to the nucleus but excluded from the nucleoli in the three cell lines.

Reliability (APE)

High

Antibodies in assay

HPA001853, HPA012292
 

NORMAL TISSUE & ORGAN SUMMARY

? »

Show image »

Expression summary

Ubiquitous nuclear expression with variable intensities.

Tissue specificity

Expressed in 81 out of 82 cell types

Reliability (APE)

Medium

Antibodies in assay

CAB000330, HPA001853, HPA012292
 

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 13
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

? »

Staining summary

Antibody staining in 79% of the cancers

Antibodies in assay

CAB000330, HPA001853, HPA012292
 

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

? »

RNA evidence

High
 

Cell line

Cell origin

RNA abundance

IH staining

IF intensity

CAB000330

HPA001853

HPA012292

HPA001853

HPA012292

A-431 Skin High
StrongModerate
A-549 Lung High
CACO-2 Colon Medium
HEK 293 Embryonal kidney Medium
HeLa Cervix High
Hep-G2 Liver Medium
MCF-7 Pleural effusion High
PC-3 Bone marrow High
RT-4 Urinary bladder High
U-2 OS Bone High
ModerateModerate
U-251 MG Brain Medium
ModerateModerate

ANTIBODY SUMMARY

? »

Antibody

Clonality

Validation

CAB000330 mAb
HPA001853 pAb
HPA012292 pAb