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GENE AND PROTEIN SUMMARY

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Gene name

CALD1

Description

caldesmon 1

Protein class

Mapped to UniProt SWISS-PROT, Potential transmembrane proteins

Protein evidence

High

Entrez gene summary

This gene encodes a calmodulin- and actin-binding protein that plays an essential role in the regulation of smooth muscle and nonmuscle contraction. The conserved domain of this protein possesses the binding activities to Ca(2+)-calmodulin, actin, tropomyosin, myosin, and phospholipids. This protein is a potent inhibitor of the actin-tropomyosin activated myosin MgATPase, and serves as a mediating factor for Ca(2+)-dependent inhibition of smooth muscle contraction. Alternative splicing of this gene results in multiple transcript variants encoding distinct isoforms. [provided by RefSeq, Jul 2008]

External links

Ensembl, UniProt, Entrez gene, neXtProt, Antibodypedia

No of splice variants

15 in total
1 with predicted TM region
0 with predicted signal peptide

SUBCELLULAR LOCATION SUMMARY

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Main location(s)

Plasma membrane, Cytoskeleton (Actin filaments)

Additional location(s)

 

Staining summary

Localized to actin filaments and the plasma membrane.

Reliability (APE)

High

Antibodies in assay

HPA008066, HPA017330
 

NORMAL TISSUE & ORGAN SUMMARY

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Expression summary

Selective cytoplasmic expression in smooth muscle, myoepithelial cells, endothelium, ovarian and endometrial stroma.

Tissue specificity

Expressed in 9 out of 81 cell types

Reliability (APE)

High

Antibodies in assay

CAB000006, HPA008066, HPA017330
 

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 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 39% of the cancers

Antibodies in assay

CAB000006, HPA008066, HPA017330
 

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

CAB000006

HPA008066

HPA017330

HPA008066

HPA017330

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

ANTIBODY SUMMARY

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Antibody

Clonality

Validation

CAB000006 mAb
HPA008066 pAb
HPA017330 pAb