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All antibodies work in different combinations of applications, species and samples, so we encourage our customers to write a short Abreview, so that future customers can make an informed decision about the usefulness of a particular antibody for their specific experiments.

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review by Carl Hobbs submitted on 15 April 2009

Application:

Immunocytochemistry/ Immunofluorescence

 

GFAP antibody [GF5] - Astrocyte Marker (ab10062)

 

Sample

Mouse Cell (Stimulated Cor1 cells)

Specification

Stimulated Cor1 cells

 

Fixative:

Formaldehyde

Permeabilization:

Yes - TBS/BSA/azide/0.3% Triton X

Blocking step:

BSA as blocking agent for  10 mins  · Concentration: 1 % · Temperature: rt°C

 

Primary Antibody

Dilution

1/1500

Incubation time:

2 hours  Diluent: TBS/BSA/azide/0.3% Triton

 

Secondary Antibody

Name:

Non-Abcam Antibody was used: anti mouse IgG
Conjugation: Alexa Fluor® 488

 

Dilution:

1/1000

 

Additional Data

Rating

Excellent 5 stars (out of 5)5 stars (out of 5)5 stars (out of 5)5 stars (out of 5)5 stars (out of 5)

Additional notes

I co- incubated stimulated Cor1 cells with Abcam's and a competitor anti-GFAP Abs: after washing in TBS x3 for 15minutes I then incubated the cells with buffer containing Goat anti Rabbit -Alexa 594, Goat anti Mouse Alexa- 488 and Hoechst for 1 hr at RT diluted in same buffer solution as the primary Abs.
After further TBS washes, coverslips were picked up,rinses in distilled water performed to get rid of buffer salts and then the coverslips were mounted on glass slides, using a homemade "anti-fade" hard-setting mountant.
Images were captured using a Zeiss Apotome Microscope system: Z-stacks of each channel were flattened in "cut-view".
Adobe's Photoshop was used to merge red/greenchannels with Hoechst and then to globally enhance the composite image, using "unsharp mask".

Seems to me that both Abs are co-localised. I did this because, in FFPW sections, the positivity seen with these Abs in the svz of mouse/rat brain FFPW sections of lateral ventricle is not identical (in my hands).
My point therefore, is that one must always test several Abs raised against any particular protein unless Peer review concludes that one particular Ab reagent is agreed to be specific for any cell/tissue preparation.

The cells were seeded/grown on coverslips and then fixed by Philipp Suetterlin, PhD student Wolfson Centre for Age-Related Diseases, Kings College London ...thanks, Phil! All previous Abreviews using Cor1 cells were possible only because of Phil's excellent skills in growing/maintaining/fixing Cor1 cells.

Image

GFAP antibody [GF5] - Astrocyte Marker for ICC/IF (Mouse)

Copyright image used under license

Anonymous Abreview submitted on 29 April 2008

Application:

Immunocytochemistry

 

GFAP antibody [GF5] - Astrocyte Marker (ab10062)

 

Sample

Rat Cultured Cells (BMSC)

Specification

BMSC

 

Fixative:

Paraformaldehyde

Blocking step:

Serum as blocking agent for  30 mins  · Concentration: 10 % · Temperature: 20°C

 

Primary Antibody

Dilution

1/50

Incubation time:

48 hours  Temperature: 4°C Diluent: PBS

 

Secondary Antibody

Name:

Non-Abcam Antibody was used: Goat anti mouse IgG rhodamine Conjugated
Conjugation: Rhodamine

 

Dilution:

1/20

 

Additional Data

Rating

Average 3 stars (out of 5)3 stars (out of 5)3 stars (out of 5)3 stars (out of 5)3 stars (out of 5)

review by Carl Hobbs submitted on 4 December 2007

Application:

Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections)

 

GFAP antibody [GF5] - Astrocyte Marker (ab10062)

 

Sample

Zebrafish Tissue sections (T/S whole body. Spinal cord view)

Specification

T/S whole body. Spinal cord view

 

Fixative:

Formaldehyde

Antigen retrieval step:

Heat mediated - Buffer/Enzyme Used: 10mM Citric acid pH6

Blocking step:

BSA as blocking agent for  10 mins  · Concentration: 1 % · Temperature: RT°C

 

Primary Antibody

Dilution

1/200

Incubation time:

16 hours  Diluent: TBS/BSA/Azide

 

Secondary Antibody

Name:

Non-Abcam Antibody was used: Goat anti mouse Igs
Conjugation: Biotin

 

Dilution:

1/200

 

Additional Data

Rating

Poor 1 stars (out of 5)1 stars (out of 5)1 stars (out of 5)1 stars (out of 5)1 stars (out of 5)

Additional notes

This Ab reagent is not applicable to zebra fish CNS/PNS, imho, for pwax zebrafish.
I have tried dilution factors between 1/50-1/250. I attach a composite picture of this Ab and another polyclonal, from a different source, to support my statement.
Upper image is "other source polyclonal", the lower image is Abcam's mouse monoclonal.
NB: the adult zebrafish tissue was not decalcified, in case of loss of immunoreactivity.
I used pressure-cooker HIER: thus bone tissue is mostly lost/disassociated.

Image

GFAP antibody [GF5] - Astrocyte Marker for IHC-P (Zebrafish)

Copyright image used under license

Abcam response

Thank you for your feedback. It seems that this antibody previously untested in zebrafish is not suitable for this species. We hope this information will be useful to other researchers.

review by Carl Hobbs submitted on 19 November 2007

Application:

Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections)

 

GFAP antibody [GF5] - Astrocyte Marker (ab10062)

 

Sample

Rat Tissue sections (adult brain: lateral ventricle showing astrocytes)

Specification

adult brain: lateral ventricle showing astrocytes

 

Fixative:

Formaldehyde

Antigen retrieval step:

Heat mediated - Buffer/Enzyme Used: citric acid pH6

Permeabilization:

No

Blocking step:

BSA as blocking agent for  10 mins  · Concentration: 1 % · Temperature: RT°C

 

Primary Antibody

Dilution

1/250

Incubation time:

16 hours  Diluent: TBS/BSA/Azide pH7.6

 

Secondary Antibody

Name:

Non-Abcam Antibody was used: goat anti mouse Ig
Conjugation: Biotin

 

Dilution:

1/200

 

Additional Data

Rating

Average 3 stars (out of 5)3 stars (out of 5)3 stars (out of 5)3 stars (out of 5)3 stars (out of 5)

Additional notes

In my hands this antibody reagent is not as sensitive as other anti -GFAP Abs that I use for P-Wax sections (a rabbit polyclonal and a mouse monoclonal Ab against GFAP). Picture shows the exit point for the progenitor olfactory neurones, of the lateral ventrical subventricular zone.

Image

GFAP antibody [GF5] - Astrocyte Marker for IHC-P (Rat)

Copyright image used under license

review by Alexis Bemelmans submitted on 31 August 2007

Application:

Immunohistochemistry (Frozen sections)

 

GFAP antibody [GF5] - Astrocyte Marker (ab10062)

 

Sample

Rat Tissue sections (retina)

Specification

retina

 

Fixative:

Paraformaldehyde

Permeabilization:

Yes - 0.25% TritonX-100

Blocking step:

Serum as blocking agent for  1 hour  · Concentration: 10 % · Temperature: 20°C

 

Primary Antibody

Dilution

1/1000

Incubation time:

16 hours  Temperature: 20°C Diluent: PBS

 

Secondary Antibody

Name:

Non-Abcam Antibody was used: Anti Mouse IgG
Conjugation: Alexa Fluor® 488

 

Dilution:

1/500

 

Additional Data

Rating

Excellent 5 stars (out of 5)5 stars (out of 5)5 stars (out of 5)5 stars (out of 5)5 stars (out of 5)

Additional notes

Arrows indicate astrocytes processes at the inner side of the retina. Arrowhead indicates a Müller cell. Nuclei are counterstained in blue by Hoechst 33342. GCL: ganglion cell layer INL: inner nuclear layer.

Image

GFAP antibody [GF5] - Astrocyte Marker for IHC-Fr (Rat)

Copyright image used under license

review by Randal Moldrich submitted on 16 December 2005

Application:

Immunocytochemistry

 

GFAP antibody [GF5] - Astrocyte Marker (ab10062)

 

Sample

Mouse Cell (mixed neuron/glia cell culture)

Specification

mixed neuron/glia cell culture

 

Fixative:

Paraformaldehyde

Blocking step:

BSA as blocking agent for  40 mins  · Concentration: 5%

 

Primary Antibody

Dilution

1/100

Incubation time:

12 hours 

 

Secondary Antibody

Name:

Non-Abcam Antibody was used: goat anti-mouse IgG Alexa Fluor 568
Conjugation:

 

Dilution:

1/400

 

Additional Data

Rating

Excellent 5 stars (out of 5)5 stars (out of 5)5 stars (out of 5)5 stars (out of 5)5 stars (out of 5)

Additional notes

Image below: anti-GFAP[GF5] (ab10062) marked with red secondary antibody and TO-PRO-3 nuclear marker (660nm; converted to blue).

Image

GFAP antibody [GF5] - Astrocyte Marker for ICC (Mouse)

Copyright image used under license

review by Randal Moldrich submitted on 16 December 2005

Application:

Immunocytochemistry

 

GFAP antibody [GF5] - Astrocyte Marker (ab10062)

 

Sample

Rat Cell (Glial cell culture)

Specification

Glial cell culture

 

Fixative:

Paraformaldehyde

Blocking step:

BSA as blocking agent for  40 mins  · Concentration: 5%

 

Primary Antibody

Dilution

1/100

Incubation time:

12 hours 

 

Secondary Antibody

Name:

Non-Abcam Antibody was used: goat anti-mouse IgG Alexa Fluor 568
Conjugation:

 

Dilution:

1/400

 

Additional Data

Rating

Average 3 stars (out of 5)3 stars (out of 5)3 stars (out of 5)3 stars (out of 5)3 stars (out of 5)

Additional notes

Image below: anti-GFAP (GF5) (ab10062) marked by a red secondary antibody with the nucleus counterstained with TO-PRO-3 (660nm, converted here to blue).

Image

GFAP antibody [GF5] - Astrocyte Marker for ICC (Rat)

Copyright image used under license

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