Anti-Synapsin I
Recommended Replacement for: MAB355| Species Reactivity | Key Applications | Host | Format | Antibody Type |
|---|---|---|---|---|
| B, H, M, R | ELISA, IC, IH, IH(P), IP, WB | Rabbit | Purified | Polyclonal Antibody |
Description:
Anti-Synapsin I
Replaces:
MAB355
Trade Name:
Chemicon (Millipore)
Specificity:
Synapsin I (Mr of 80,000 and 77,000). Synapsin is located only in brain nerve terminal and is an excellent marker for synapes. Immunolabeling is blocked by preadsorption of the antibody with synapsin I.
Molecular Weight:
77 & 80 kDa
Immunogen:
Synapsin I (mixture of Ia & Ib) purified from bovine brain.
Background Information:
The synapsins are a family of proteins that have long been implicated in the regulation of neurotransmitter release at synapses. Specifically, they are thought to be involved in regulating the number of synaptic vesicles available for release via exocytosis at any one time. Synapsins are encoded by three different genes, synapsin I, II and III, and different neuron terminals will encode different amounts of these; synapsin will make up 1% of total brain protein at any one time.
Current studies suggest the following hypothesis for the role of synapsin: synapsins bind synaptic vesicles to components of the cytoskeleton which prevents them from migrating to the presynaptic membrane and releasing transmitter. During an action potential, synapsins are phosphorylated by Ca2+/calmodulin-dependent protein kinase II, releasing the synaptic vesicles and allowing them to move to the membrane and release their neurotransmitter.
Current studies suggest the following hypothesis for the role of synapsin: synapsins bind synaptic vesicles to components of the cytoskeleton which prevents them from migrating to the presynaptic membrane and releasing transmitter. During an action potential, synapsins are phosphorylated by Ca2+/calmodulin-dependent protein kinase II, releasing the synaptic vesicles and allowing them to move to the membrane and release their neurotransmitter.
Species Reactivity:
- Bovine
- Human
- Mouse
- Rat
Species Reactivity Note:
Human, bovine, rat, and mouse.
Application Notes:
Western blotting:
1:200-1:1,000 dilution of a previous lot was used.
Immunocytochemistry:
1:500-1:2,000 dilution of a previous lot was used.
Immunoprecipitation:
1 μg of a previous lot immunoprecipitated all of the synapsin I from a SDS homogenate of 200 μg of rat brain protein.
Note: The above dilutions are with 35S-protein A; with ECL dilutions may need to be considerably higher to obtain specific immunolabeling.
Immunohistochemistry:
1:500-1:2,500
ELISA:
1:2,500-1:10,00
Optimal working dilutions must be determined by the end user.
1:200-1:1,000 dilution of a previous lot was used.
Immunocytochemistry:
1:500-1:2,000 dilution of a previous lot was used.
Immunoprecipitation:
1 μg of a previous lot immunoprecipitated all of the synapsin I from a SDS homogenate of 200 μg of rat brain protein.
Note: The above dilutions are with 35S-protein A; with ECL dilutions may need to be considerably higher to obtain specific immunolabeling.
Immunohistochemistry:
1:500-1:2,500
ELISA:
1:2,500-1:10,00
Optimal working dilutions must be determined by the end user.
Control:
Brain tissue.
Quality Assurance:
Immunohistochemistry(paraffin):
Synapsin I (AB1543P) representative staining pattern/morphology in rat hippocampal neurons. Tissue was pretreated with Citrate pH 6.0, antigen retrieval. This lot of antibody was diluted to 1:1000, IHC-Select® reagents used with HRP-DAB. Immunoreactivity is seen directly associated with terminal end of neuronal cell body.
IHC-Paraffin Staining With Epitope Retrieval:
Rat Hippocampus
Synapsin I (AB1543P) representative staining pattern/morphology in rat hippocampal neurons. Tissue was pretreated with Citrate pH 6.0, antigen retrieval. This lot of antibody was diluted to 1:1000, IHC-Select® reagents used with HRP-DAB. Immunoreactivity is seen directly associated with terminal end of neuronal cell body.
IHC-Paraffin Staining With Epitope Retrieval:
Rat Hippocampus
Purification Method:
Immunoaffinity purified
Presentation:
Purified rabbit polyclonal in buffer lyophilized from 5 mM ammonium bicarbonate. Reconstitute with 50 μL of PBS.
Storage Conditions:
Stable for 1 year at -20ºC from date of receipt.
UniProt Number:
Entrez Gene Number:
Gene Symbol:
- SYN1
- SYN1a
- SYNI
- SYN1b
Alternate Names:
Synapsin-1
Usage Statement:
Unless otherwise stated in our catalog or other company documentation accompanying the product(s), our products are intended for research use only and are not to be used for any other purpose, which includes but is not limited to, unauthorized commercial uses, in vitro diagnostic uses, ex vivo or in vivo therapeutic uses or any type of consumption or application to humans or animals.
Key Applications:
- ELISA
- Immunocytochemistry
- Immunohistochemistry
- Immunohistochemistry (Paraffin)
- Immunoprecipitation
- Western Blotting
Entrez Gene Summary:
This gene is a member of the synapsin gene family. Synapsins encode neuronal phosphoproteins which associate with the cytoplasmic surface of synaptic vesicles. Family members are characterized by common protein domains, and they are implicated in synaptogenesis and the modulation of neurotransmitter release, suggesting a potential role in several neuropsychiatric diseases. This member of the synapsin family plays a role in regulation of axonogenesis and synaptogenesis. The protein encoded serves as a substrate for several different protein kinases and phosphorylation may function in the regulation of this protein in the nerve terminal. Mutations in this gene may be associated with X-linked disorders with primary neuronal degeneration such as Rett syndrome. Alternatively spliced transcript variants encoding different isoforms have been identified.
UniProt Summary:
FUNCTION: SwissProt: P17600 # Neuronal phosphoprotein that coats synaptic vesicles, binds to the cytoskeleton, and is believed to function in the regulation of neurotransmitter release. The complex formed with NOS1 and CAPON proteins is necessary for specific nitric-oxid functions at a presynaptic level.
SIZE: 705 amino acids; 74111 Da
SUBUNIT: Homodimer. Interacts with CAPON. Forms a ternary complex with NOS1 (By similarity).
SUBCELLULAR LOCATION: Cell junction, synapse.
PTM: Substrate of at least four different protein kinases. It is probable that phosphorylation plays a role in the regulation of synapsin-1 in the nerve terminal. Phosphorylated upon DNA damage, probably by ATM or ATR.
DISEASE: SwissProt: P17600 # Defects in SYN1 are a cause of X-linked recessive epilepsy associated with variable learning disabilities and behavior disorders [MIM:300491].
SIMILARITY: SwissProt: P17600 ## Belongs to the synapsin family.
SIZE: 705 amino acids; 74111 Da
SUBUNIT: Homodimer. Interacts with CAPON. Forms a ternary complex with NOS1 (By similarity).
SUBCELLULAR LOCATION: Cell junction, synapse.
PTM: Substrate of at least four different protein kinases. It is probable that phosphorylation plays a role in the regulation of synapsin-1 in the nerve terminal. Phosphorylated upon DNA damage, probably by ATM or ATR.
DISEASE: SwissProt: P17600 # Defects in SYN1 are a cause of X-linked recessive epilepsy associated with variable learning disabilities and behavior disorders [MIM:300491].
SIMILARITY: SwissProt: P17600 ## Belongs to the synapsin family.
Brand Family:
Chemicon
Protein/Isoform Description:
Synapsins are a multi-gene family of neuronal proteins that are the most abundant proteins on synaptic vesicles. Synapsin I is believed to serve as a link between synaptic vesicles and the neuronal cytoskeleton. Phosphorylation of Synapsin I on Ser603 is concomitant with release of neurotransmitters; this phosphorylation site is thought to be specific for CaM Kinase II, however a number of reports indicate that this site is phosphorylated in a Cam Kinase II-independent manner. Loss of Synapsin I from regions of the hippocampus has been observed in brain sections from Alzheimer's disease patients.
Product Name:
Anti-Synapsin I
Concentration:
0.2 mg/mL
Antibody Type:
Polyclonal Antibody
Qty/Pk:
10 μg
Format:
Purified
Host:
Rabbit