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GENE AND PROTEIN SUMMARY

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Gene name

KCNMB1

Description

potassium large conductance calcium-activated channel, subfamily M, beta member 1

Protein class

Mapped to UniProt SWISS-PROT, Potential transmembrane proteins, Transporters

Protein evidence

Medium

Entrez gene summary

MaxiK channels are large conductance, voltage and calcium-sensitive potassium channels which are fundamental to the control of smooth muscle tone and neuronal excitability. MaxiK channels can be formed by 2 subunits: the pore-forming alpha subunit and the product of this gene, the modulatory beta subunit. Intracellular calcium regulates the physical association between the alpha and beta subunits. [provided by RefSeq, Jul 2008]

External links

Ensembl, UniProt, Entrez gene, neXtProt, Antibodypedia

No of splice variants

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

SUBCELLULAR LOCATION SUMMARY

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Main location(s)

Cytoskeleton (Intermediate filaments)

Additional location(s)

Cytoplasm 

Staining summary

Staining of cytoskeleton (intermediate filaments) in U-251 MG and U-2 OS. Staining of cytoplasm in A-431.

Reliability (Single)

Antibodies in assay

HPA020435
 

NORMAL TISSUE & ORGAN SUMMARY

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Staining summary

Most normal tissues displayed moderate cytoplasmic positivity. Strong staining was observed in ovarian follicle cells, bone marrow poetic cells, gall and urinary bladder. Liver and cells in CNS were in general negative or weakly stained.

Tissue specificity

Staining in 73 out of 80 cell types

Reliability (Single)

Antibodies in assay

HPA020435
 

Organ

No of cell types

Antibody staining

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 antibody staining





Strong
Moderate
Weak
Negative

CANCER TISSUE SUMMARY

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Staining summary

Antibody staining in 59% of the cancers

Antibodies in assay

HPA020435
 

Tissue

Cancer staining

Normal tissue
staining

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

Tissue

Cancer staining

Normal tissue
staining

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

Low
 

Cell line

Cell origin

RNA abundance

IH staining

IF intensity

HPA020435

HPA020435

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

-

U-2 OS Bone Low
Strong
U-251 MG Brain Not detected
Moderate

ANTIBODY SUMMARY

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Antibody

Clonality

Validation

HPA020435 pAb