Fields »

GENE AND PROTEIN SUMMARY

? »

Gene name

LIMK1

Description

LIM domain kinase 1

Protein class

Candidate cancer biomarkers, Enzymes, Kinases, Mapped to UniProt SWISS-PROT

Protein evidence

High

Entrez gene summary

There are approximately 40 known eukaryotic LIM proteins, so named for the LIM domains they contain. LIM domains are highly conserved cysteine-rich structures containing 2 zinc fingers. Although zinc fingers usually function by binding to DNA or RNA, the LIM motif probably mediates protein-protein interactions. LIM kinase-1 and LIM kinase-2 belong to a small subfamily with a unique combination of 2 N-terminal LIM motifs and a C-terminal protein kinase domain. LIMK1 is a serine/threonine kinase that regulates actin polymerization via phosphorylation and inactivation of the actin binding factor cofilin. This protein is ubiquitously expressed during development and plays a role in many cellular processes associated with cytoskeletal structure. This protein also stimulates axon growth and may play a role in brain development. LIMK1 hemizygosity is implicated in the impaired visuospatial constructive cognition of Williams syndrome. Alternative splicing results in multiple transcript variants encoding distinct isoforms.[provided by RefSeq, Feb 2011]

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

? »

Show image »

Main location(s)

Nucleus but not nucleoli, Cytoplasm

Additional location(s)

 

Staining summary

Localized to nuclear speckles and the cytoplasm.

Reliability (APE)

Medium

Antibodies in assay

HPA028064, HPA028516
 

NORMAL TISSUE & ORGAN SUMMARY

? »

Show image »

Expression summary

Cytoplasmic expression in most tissues. Highest levels in CNS and most glandular epithelia. No expression in most mesenchymal cells.

Tissue specificity

Expressed in 72 out of 81 cell types

Reliability (APE)

Low

Antibodies in assay

HPA028064, HPA028516
 

Organ

No of cell types

Protein expression

CNS (brain) 11
Hematopoietic (blood) 8
Liver and pancreas 5
Digestive (GI-tract) 12
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 59% of the cancers

Antibodies in assay

HPA028064, HPA028516
 

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

 

HPA028064

HPA028516

A-431 Skin High

-

NegativeModerate
A-549 Lung High

-

CACO-2 Colon Medium

-

HEK 293 Embryonal kidney Medium

-

HeLa Cervix Medium

-

Hep-G2 Liver Medium

-

MCF-7 Pleural effusion High

-

PC-3 Bone marrow Medium

-

RT-4 Urinary bladder Medium

-

U-2 OS Bone Medium

-

NegativeStrong
U-251 MG Brain High

-

NegativeStrong

ANTIBODY SUMMARY

? »

Antibody

Clonality

Validation

HPA028064 pAb
HPA028516 pAb