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6 protocols using ab5407

1

Immunofluorescence and Western Blot Analysis of Retinal Proteins

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The primary antibodies used for western blotting and immunofluorescence analysis included: SDCCAG8 (WB 1:2 000, IHC 1:50, 13471-1-AP; Proteintech Group, USA), GRK1 (1:400, 24606-1-AP; Proteintech Group, USA), rhodopsin (1:400, 1D4, clone D4B9B; Cell Signaling Technology, CST, USA), S-opsin (1:300, Ab5407; Abcam, UK), GFP (1:3 000, 50430-2-AP; Proteintech Group, USA), GAPDH (1:5 000, 10494-1-AP; Proteintech Group, USA), β-actin (1:5 000, 20536-1-AP; Proteintech Group, USA), PDE6B (1:400, T13343; Thermo, USA), Alexa Fluor 594 conjugated peanut agglutinin (PNA) (1:200, L32459; Thermo, USA), cone arrestin (1:300, AB15282; Sigma, USA), and anti-alpha tubulin (acetyl K40) (1:1 000, ab24610; Abcam, UK). Secondary antibodies included: goat anti-rabbit Alexa Fluor 488 and 594 (1:1 000; Invitrogen, USA), goat anti-mouse Alexa Fluor 594 (1:1 000; Invitrogen, USA), and HRP-conjugated Affinipure goat anti-rabbit IgG (H+L) (1:5 000, SA00001-2; Proteintech Group, USA).
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2

Histological Preparation of Rhabdomys pumilio Retinas

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Rhabdomys pumilio were anaesthetised with urethane and perfused with 4% paraformaldehyde (methanol free). Eyes were then stored in methanol-free 4% paraformaldehyde prior to further processing. For retinal wholemounts, retinas were dissected from fixed eyes and immunohistochemistry performed on free-floating retinas. For retinal sections, whole eyes were embedded in Historesin and were sectioned at 5 µm thickness. For general histology, fixed eyes were dehydrated through a graded series of alcohols and infiltrated with Technovit 7100 (Historesin TAAB Labs UK). Blocks were sectioned at 5 µm and mounted onto clean slides, stained with Cresyl Violet and coverslipped under DPX. For immunohistochemistry, R. pumilio retinas were labelled using polyclonal antibodies against MWS/LWS opsin raised in chicken (PA1-9517, ThermoFisher; 1:250 dilution) and against SWS opsin raised in rabbit (AB5407, Abcam; 1:300 dilution), and left overnight at room temperature. Tissues were then washed and incubated for 2 h in fluorescent secondary antibodies at a dilution of 1:2000 made up of 2% NDS, 3% Triton X-100 and PBS. Sections were imaged with an Axio Imager.D2 upright microscope and captured using a Coolsnap Hq2 camera (Photometrics) through Micromanager software v1.4.23.
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3

Retinal Cell Type Quantification

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Immunohistochemistry analysis was performed on 10μm paraffin embedded serial sections from the enucleated mouse eyes as described in our previous studies72 . At minimum 100μm of retina/sample was evaluated by IHC. Briefly, sections were blocked with 2% normal horse serum (#S-2000 VectorLabs, CA) in PBS, and incubated with the following cell type-specific primary antibodies in a 1:200 dilution: rhodopsin (mouse monoclonal, Millipore MAB5356); green/red opsin (rabbit polyclonal, Millipore AB5405); blue opsin (rabbit polyclonal, Millipore AB5407; GFP (1:500, rabbit polyclonal, Abcam ab290). The following day, sections were rinsed with PBS and incubated with the corresponding secondary antibody (1:400 Alexa fluor 488 goat anti-rabbit, Invitrogen A11008) and nuclei were stained with 4,6-Diamidino-2-Phenylindole, Dihydrochloride (DAPI). Over 500μm of sections/animal were visualized and representative images of IHC labeling were captured using a Leica DMI6000 fluorescent microscope equipped with the appropriate bandpass filter for each fluorochrome. Cell counts were performed in a double-blinded manner over 100μm retinal area. N=10/strain/experimental group.
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4

Retinal Cell Type Quantification

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Immunohistochemistry analysis was performed on 10 µm paraffin embedded serial sections from the enucleated mouse eyes as described in our previous studies [72 ]. At minimum 100 µm of retina/sample was evaluated by IHC. Briefly, sections were blocked with 2% normal horse serum (#S-2000 VectorLabs, CA) in PBS, and incubated with the following cell type-specific primary antibodies in a 1:200 dilution: rhodopsin (mouse monoclonal, Millipore MAB5356); green/red opsin (rabbit polyclonal, Millipore AB5405); blue opsin (rabbit polyclonal, Millipore AB5407); GFP (1:500, rabbit polyclonal, Abcam ab290). The following day, sections were rinsed with PBS and incubated with the corresponding secondary antibody (1:400 Alexa fluor 488 goat antirabbit, Invitrogen A11008) and nuclei were stained with 4,6-Diamidino-2-Phenylindole, Dihydrochloride (DAPI). Over 500 μm of sections/animal were visualized and representative images of IHC labeling were captured using a Leica DMI6000 fluorescent microscope equipped with the appropriate bandpass filter for each fluorochrome. Cell counts were performed in a double-blinded manner over 100 μm retinal area (N = 10/strain/experimental group).
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5

Immunohistochemical Analysis of Colon Cancer

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Both normal and colon cancer tissues collected from mice were fixed for 24 h using 4% paraformaldehyde. Then, immunohistochemical staining for SRCIN1, cleaved caspase 3, β-catenin and Ki-67 was performed by incubation with the following primary antibodies: SRCIN1 (ab5407, 1:200; Abcam), cleaved caspase 3 (ab32042, 1:100; Abcam), β-catenin (ab223075, 1:200; Abcam), and Ki-67 (ab15580, 1:200; Abcam). Finally, the IX71 inverted microscope (Olympus) was used to acquire images.
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6

SRCIN1 Expression in NSCLC Tissues

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Initially, NSCLC tumors and paracancerous tissues were fixed with 4% paraformaldehyde for 24 h, after which they were subjected to immunohistochemical (IHC) staining for SRCIN1 using primary anti-SRCIN1 (abcam, ab5407; 1 : 200), and secondary antibody HRP Donkey Anti-Rabbit IgG (H+L) (ABclonal, AS038, 1 : 1000). Samples were then imaged via light microscope (Olympus, Tokyo, Japan).
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