All Photos(3)




Anti-Synaptophysin Antibody, clone SY38

clone SY38, Chemicon®, from mouse

Sign Into View Organizational & Contract Pricing

synaptophysin, Synaptophysin

biological source


Quality Level

antibody form

purified immunoglobulin

antibody product type

primary antibodies


SY38, monoclonal

species reactivity

bovine, rat, avian, fish, mouse, human




flow cytometry: suitable
immunocytochemistry: suitable
immunohistochemistry: suitable
western blot: suitable



NCBI accession no.

UniProt accession no.

shipped in

wet ice

target post-translational modification


Gene Information

human ... SYP(6855)

Related Categories

Compare Similar Items

View Full Comparison

Show Differences

1 of 4

This Item
biological source


biological source


biological source


biological source


Gene Information

human ... SYP(6855)

Gene Information

human ... SYP(6855)

Gene Information

human ... SYP(6855)
rat ... Syp(24804)

Gene Information

human ... SYP(6855)

antibody form

purified immunoglobulin

antibody form

purified antibody

antibody form

ascites fluid

antibody form

ascites fluid

species reactivity

bovine, rat, avian, fish, mouse, human

species reactivity

mouse, human

species reactivity

pig, rat, human, guinea pig

species reactivity

pig, rat, hamster, human

NCBI accession no.


NCBI accession no.


NCBI accession no.


NCBI accession no.


Still not finding the right product?  

Give our Product Selector Tool a try.

General description

Synaptophysin is a 38 kDa glycoprotein present in the membrane of neuronal presynaptic vesicles in brain, spinal cord, retina, vesicles of adrenal medulla, neuromuscular junctions, and endocrine cells. It is also expressed by neuroendocrine cells throughout the body, both normal and neoplastic. Synaptophysin is a useful marker for the identification of normal neuroendocrine cells and neuroendocrine neoplasms. This antibody reacts with neuroendocrine cells of human adrenal medulla, carotid body, skin, pituitary gland, thyroid, lung, pancreas, and gastointestinal mucosa. It also reacts with a wide spectrum of neuroendocrine neoplasms of neural type including neuroblastomas, ganglioneuroblastomas, ganglioneuromas, pheochromocytomas, chromaffin, and non chromaffin paragangliomas.


The antibody reacts with presynaptic vesicles of cerebral and spinal neurons, of neuromuscular endplates and with the retina of man, cow, rat and mouse. The antibody also reacts with vesicles of adrenal medulla and islet cells, and additionally allows specific staining of neuronal, adrenal and neuroepithelial tumors, such as pheochromocytoma, paraganglioma, islet cell tumors (incl. Insulinoma), medullary thyroid carcinoma and diverse pulmonary and gastro-intestinal carcinoids. The antibody also stains neurosecretory vesicles of certain culture cells, e.g. of the rat cell line PC-12.


Vesicular fraction of bovine brain. The SY38 epitope is to a pentapeptide repeat structure in the carboxy-terminal cytoplasmic tail of synaptophysin (Knaus & Betz 1990).


Detect Synaptophysin using this Anti-Synaptophysin Antibody, clone SY38 validated for use in FC, IC, IH & WB.
Flow Cytometry (FACS):
A previous lot of this antibody was used in Flow Cytometry.

Western Blot:
(Provoda, 2000) Reacts with a 38 kDa transmembrane glycoprotein

For relatively cytoplasm-rich neuroendocrinic tumors a final concentration of 1 µg/mL is recommended. Concerning cytoplasm deficient tumors a concentration of 2 µg/mL should be used. Ideal frozen sections (4-5 mm) are obtained from shock-frozen tissue samples. The frozen sections are air-dried and then fixed with acetone for 5-10 min at -20°C. Excess acetone is allowed to evaporate at room temperature. Material fixed in alcohol or formalin and embedded in paraffin can also be used.
It is advantageous to block unspecific binding sites by overlaying the sections with fetal calf serum for 20-30 min at room temperature. Excess of fetal calf serum is removed by decanting before application of the anti-body solution.
Cytocentrifuge preparations of single cells or cell smears are also fixed in acetone. These preparations should but should be followed directly by antibody treatment.

Optimal working dilutions must be determined by end user.
Research Category
Research Sub Category
Synapse & Synaptic Biology


Routinely evaluated by Western Blot on mouse brain lysates.

Western Blot Analysis:
1:1000 dilution of this lot detected synaptophysin on 10 μg of mouse brain lysates.

Target description

38 kDa


Replaces: 04-1019

Physical form

Format: Purified
Protein A purified
Purified mouse monoclonal IgG1κ in buffer containing 20 mM sodium phosphate buffer, 0.25 M NaCl, containing 0.1% sodium azide.

Storage and Stability

Stable for 6 months at 2-8ºC from date of receipt. DO NOT FREEZE.

Analysis Note

Positive Control: Pancreas tissue
Negative Control: Normal mouse serum
Rat hippocampus tissue, mouse brain lysate.

Other Notes

Concentration: Please refer to the Certificate of Analysis for the lot-specific concentration.

Legal Information

CHEMICON is a registered trademark of Merck KGaA, Darmstadt, Germany


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.

Storage Class

10 - Combustible liquids




Not applicable


Not applicable

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

Already Own This Product?

Documents related to the products that you have purchased in the past have been gathered in the Document Library for your convenience.

Visit the Document Library

Difficulty Finding Your Product Or Lot/Batch Number?

Product numbers are combined with Pack Sizes/Quantity when displayed on the website (example: T1503-25G). Please make sure you enter ONLY the product number in the Product Number field (example: T1503).


Product Number
Pack Size/Quantity

Additional examples:





enter as 1.000309185)

Having trouble? Feel free to contact Technical Service for assistance.

Lot and Batch Numbers can be found on a product's label following the words 'Lot' or 'Batch'.

Aldrich Products

  • For a lot number such as TO09019TO, enter it as 09019TO (without the first two letters 'TO').

  • For a lot number with a filling-code such as 05427ES-021, enter it as 05427ES (without the filling-code '-021').

  • For a lot number with a filling-code such as STBB0728K9, enter it as STBB0728 without the filling-code 'K9'.

Not Finding What You Are Looking For?

In some cases, a COA may not be available online. If your search was unable to find the COA you can request one.

Request COA

Claudia Fuchs et al.
Neurobiology of disease, 70, 53-68 (2014-06-22)
Mutations in the X-linked cyclin-dependent kinase-like 5 (CDKL5) gene have been identified in a neurodevelopmental disorder characterized by early-onset intractable seizures, severe developmental delay, intellectual disability, and Rett's syndrome-like features. Since the physiological functions of CDKL5 still need to be
Hengchang Li et al.
Frontiers in neuroscience, 13, 706-706 (2019-07-30)
Children, after multiple exposures to general anesthesia, appear to be at an increased risk of developing learning disabilities. Almost all general anesthetics-including sevoflurane, which is commonly used for children-are potentially neurotoxic to the developing brain. Anesthesia exposure during development might
Luis E Boero et al.
The Journal of neuroscience : the official journal of the Society for Neuroscience, 38(34), 7440-7451 (2018-07-22)
Cochlear synaptopathy produced by exposure to noise levels that cause only transient auditory threshold elevations is a condition that affects many people and is believed to contribute to poor speech discrimination in noisy environments. These functional deficits in hearing, without
Iwona Ksiazek et al.
The Journal of neuroscience : the official journal of the Society for Neuroscience, 27(27), 7183-7195 (2007-07-06)
Agrin-deficient mice die at birth because of aberrant development of the neuromuscular junctions. Here, we examined the role of agrin at brain synapses. We show that agrin is associated with excitatory but not inhibitory synapses in the cerebral cortex. Most
Sudhakar R Subramaniam et al.
Neurobiology of disease, 117, 170-180 (2018-06-04)
In addition to dopaminergic and motor deficits, patients with Parkinson's disease (PD) suffer from non-motor symptoms, including early cognitive and social impairment, that do not respond well to dopaminergic therapy. Cholinergic deficits may contribute to these problems, but cholinesterase inhibitors

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service