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GENE AND PROTEIN SUMMARY

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Gene name

XPNPEP1

Description

X-prolyl aminopeptidase (aminopeptidase P) 1, soluble

Protein class

Enzymes, Mapped to UniProt SWISS-PROT, Peptidases, Plasma proteins

Protein evidence

High

Entrez gene summary

This gene encodes the cytosolic form of a metalloaminopeptidase that catalyzes the cleavage of the N-terminal amino acid adjacent to a proline residue. The gene product may play a role in degradation and maturation of tachykinins, neuropeptides, and peptide hormones. Alternative splicing results in multiple transcript variants.[provided by RefSeq, Nov 2009]

External links

Ensembl, UniProt, Entrez gene, neXtProt, Antibodypedia

No of splice variants

6 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)

Nucleus, Nucleoli, Centrosome 

Staining summary

Localized to the cytoplasm.

Reliability (APE)

High

Antibodies in assay

CAB025196, HPA030419, HPA030420
 

NORMAL TISSUE & ORGAN SUMMARY

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Expression summary

Cytoplasmic expression at variable levels in selective tissues, most abundant in exocrine pancreas and the intestine.

Tissue specificity

Expressed in 28 out of 83 cell types

Reliability (APE)

High

Antibodies in assay

CAB025196, HPA030419, HPA030420, HPA030422
 

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 15
Endocrine tissues 3

Level of annotated protein expression





High
Medium
Low
None

CANCER TISSUE SUMMARY

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Staining summary

Antibody staining in 56% of the cancers

Antibodies in assay

CAB025196, HPA030419, HPA030420, HPA030422
 

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

CAB025196

HPA030419

HPA030420

HPA030422

CAB025196

HPA030419

HPA030420

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

ANTIBODY SUMMARY

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Antibody

Clonality

Validation

CAB025196 mAb
HPA030419 pAb
HPA030420 pAb
HPA030422 pAb