Caldesmon

Caldesmon is a protein that in humans is encoded by the CALD1 gene.[3][4]

CALD1
Identifiers
AliasesCALD1, CDM, H-CAD, HCAD, L-CAD, LCAD, NAG22, caldesmon 1, h-CD
External IDsOMIM: 114213 HomoloGene: 137424 GeneCards: CALD1
Orthologs
SpeciesHumanMouse
Entrez

800

n/a

Ensembl

ENSG00000122786

n/a

UniProt

Q05682

n/a

RefSeq (mRNA)

NM_004342
NM_033138
NM_033139
NM_033140
NM_033157

n/a

RefSeq (protein)

NP_004333
NP_149129
NP_149130
NP_149131
NP_149347

n/a

Location (UCSC)Chr 7: 134.74 – 134.97 Mbn/a
PubMed search[2]n/a
Wikidata
View/Edit Human

Caldesmon is a calmodulin binding protein. Like calponin, caldesmon tonically inhibits the ATPase activity of myosin in smooth muscle.

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 -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 -dependent inhibition of smooth muscle contraction. Alternative splicing of this gene results in multiple transcript variants encoding distinct isoforms.[4]

Immunochemistry

In diagnostic immunochemistry, caldesmon is a marker for smooth muscle differentiation.

References

Further reading

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