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GENE AND PROTEIN SUMMARY

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Gene name

SERPINA3

Description

serpin peptidase inhibitor, clade A (alpha-1 antiproteinase, antitrypsin), member 3

Protein class

Candidate cancer biomarkers, Candidate cardiovascular disease genes, Mapped to UniProt SWISS-PROT, Plasma proteins, Potential transmembrane proteins, Potentially secreted proteins

Protein evidence

High

Entrez gene summary

The protein encoded by this gene is a plasma protease inhibitor and member of the serine protease inhibitor class. Polymorphisms in this protein appear to be tissue specific and influence protease targeting. Variations in this protein's sequence have been implicated in Alzheimer's disease, and deficiency of this protein has been associated with liver disease. Mutations have been identified in patients with Parkinson disease and chronic obstructive pulmonary disease. [provided by RefSeq, Jul 2008]

External links

Ensembl, UniProt, Entrez gene, neXtProt, Antibodypedia

No of splice variants

7 in total
0 with predicted TM region
6 with predicted signal peptide

SUBCELLULAR LOCATION SUMMARY

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Main location(s)

Cytoplasm

Additional location(s)

 

Staining summary

Localized to cytoplasm.

Reliability (APE)

Low

Antibodies in assay

HPA000893, CAB016647
 

NORMAL TISSUE & ORGAN SUMMARY

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Expression summary

Positivity in extracellular deposits and cytoplasmic expression in a few cell types.

Tissue specificity

Expressed in 17 out of 80 cell types

Reliability (APE)

Medium

Antibodies in assay

HPA000893, HPA002560, CAB016647
 

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 13
Endocrine tissues 3

Level of annotated protein expression





High
Medium
Low
None

CANCER TISSUE SUMMARY

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Staining summary

Antibody staining in 43% of the cancers

Antibodies in assay

HPA000893, HPA002560, CAB016647
 

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

HPA000893

HPA002560

CAB016647

HPA000893

CAB016647

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

ANTIBODY SUMMARY

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Antibody

Clonality

Validation

HPA000893 pAb
HPA002560 pAb
CAB016647 mAb