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Parvalbumin Antibody – CPCA-PvalB

  • Clonality : Chicken Polyclonal
  • Applications : WB | IF/ICC | IHC
  • Reactivity : Human | Rat | Mouse

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Encor Chicken Polyclonal to Parvalbumin 

Parvalbumin is a cytoplasmic Ca2+ binding proteins with low molecular weight (9-11kDa). It belongs to subclass of these containing the “EF hand” Ca2+ binding motif and is the first protein characterized in this subclass (1). Parvalbumin is expressed in fast-contracting muscles, where its levels are highest, as well as in the brain and some endocrine tissues. In brain, it is particularly concentrated in Purkinje cells and interneurons in the molecular lay, but is also found in many GABAergic interneurons in the cortex. These GABAergic interneurons in most cases express only one of three Ca2+ binding proteins, namely parvalbumin calretinin, or calbindin. As a result, these important inhibitory interneurons can be identified and subclassified based on their content of these three proteins and antibodies to these three proteins are useful for identifying specific neuronal cell types (2). Each type of neuron as defined in this fashion has particular electrophysiological and functional properties. For example, calbindin positive interneurons are not fast-spiking as are parvalbumin expressing interneurons.

Parvalbumin contains 3 EF-hand domains, domain AB, CD and EF. The N-terminal EF-hand of parvalbumin does not bind Ca2+. The functional calcium-binding loops occur between helices C and D and between helices E and F. The function of parvalbumin appears to be primarily buffering the Ca2+ level in cells and affecting intracellular calcium signal. Absence of parvalbumin and calbindin disrupts the regulation of Purkinje cell firing rate and rhythmicity in vivo and parvalbumin dysfunction in cells critically contributes to abnormalities in oscillatory rhythms and network (3,4). The HGNC name for this protein is PVALB.


HGNC name(s) : PVALB


Host : Chicken


Clonality : Polyclonal


ID : EnCor Biotechnology Parvalbumin PvalB


Reactivity : Human | Rat | Mouse


Isotype : IgY


Conjugation : none


Immunogen : Recombinant full length human


Mass of detected protein : 12 kDa


Uniprot ID : P20472


KGNC name : PVALB


RRID # : AB_2572371


Purification : Concentrated IgY preparation


Storage : Shipped on ice. Store at 4°C. For long term storage, leave frozen at -20°C. Avoid freeze / thaw cycles.


Validated applications : WB | IF/ICC | IHC


Suggested Dilutions: 

WB: 1:1 000-1:5 000
ICC/IF or IHC: 1:1 000-1:5 000


Datasheet


Link to on EnCor’s website 


References :

1: Kretsinger RH, Nockolds CE. Carp Muscle Calcium-binding Protein: II. Structure determination and general description. J. Biol. Chem. 248:3313-3326 (1973).

2: Andressen C, Bliimcke I, Celio MR. Calcium-binding proteins: selective markers of nerve cells. Cell Tissue Res 271:181-208 (1993).

3: Bearzatto B, Schwaller B, Dumont M, De Saedeleer C, Dan B, Barski JJ, Schiffmann SN, Cheron G. Mono- and dual-frequency fast cerebellar oscillation in mice lacking parvalbumin and/or calbindin D-28k. Eur J Neurosci.22(4):861-70 (2005)

4: Schwaller B, Meyer M, Schiffmann S. ‘New’ functions for ‘old’ proteins: The role of the calcium binding proteins calbindin D-28k, calretinin and parvalbumin, in cerebellar physiology. Studies with knockout mice. The Cerebellum 1:241–258 (2002).


Additional information

Format

50 ul, 100 ul, 500 ul

Supplier

Host

Chicken

Clonality

Polyclonal

Conjugation

None

Isotype

IgY

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