caix Search Results


94
Shanghai Korain Biotech Co Ltd human carbonic anhydrase ix elisa kit bt lab
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Miltenyi Biotec ca9
Detection antibodies used
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Proteintech mouse anti hif1α
Detection antibodies used
Mouse Anti Hif1α, supplied by Proteintech, used in various techniques. Bioz Stars score: 95/100, based on 1 PubMed citations. ZERO BIAS - scores, article reviews, protocol conditions and more
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OriGene pcmv6 ca ix vectors
Detection antibodies used
Pcmv6 Ca Ix Vectors, supplied by OriGene, used in various techniques. Bioz Stars score: 92/100, based on 1 PubMed citations. ZERO BIAS - scores, article reviews, protocol conditions and more
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Boster Bio ccl17
Detection antibodies used
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Miltenyi Biotec stainedwith pecoupled anti ca9 antibody
Detection antibodies used
Stainedwith Pecoupled Anti Ca9 Antibody, supplied by Miltenyi Biotec, used in various techniques. Bioz Stars score: 94/100, based on 1 PubMed citations. ZERO BIAS - scores, article reviews, protocol conditions and more
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MedChemExpress cat no hy 110243
Key resources table.
Cat No Hy 110243, supplied by MedChemExpress, used in various techniques. Bioz Stars score: 92/100, based on 1 PubMed citations. ZERO BIAS - scores, article reviews, protocol conditions and more
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Miltenyi Biotec anti ca9 pe antibody
a , Schematics showing the experiment setup of Chr3 aneuploidy engineering using CRISPRt with Chr3-sg2 (Chr3-Ct) or NT-sg1 (CTRL), and VHL allele-specific KO ( VHL -ASK) in K1088N PTECs. Cells were cultured for 7 days (D7) or 11 days (D7+4) after treatments. Cells with Chr3-Ct or VHL -ASK on D7+4 were selected for <t>CA9-positive</t> (CA9+) cells with flow sorting. The six samples fixed for scRNA-seq are marked in red. b, Heatmaps showing single-cell chromosome copy number profiles inferred from scRNA-seq data of the indicated samples. The number of cells analysed (n) is shown. Rows represent individual cells and columns represent chromosomes. Copy number status is shown in blue (loss), red (gain) or white (neutral). c, Violin plots showing InferCNV residual expression for Chr3p and Chr3q of the indicated samples. The dots represent individual cells. The blue and red dashed lines represent the thresholds (see Methods) for copy number loss and gain, respectively. The cell proportions with the indicated copy number status are shown in the tables.
Anti Ca9 Pe Antibody, supplied by Miltenyi Biotec, used in various techniques. Bioz Stars score: 94/100, based on 1 PubMed citations. ZERO BIAS - scores, article reviews, protocol conditions and more
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Affibody anti-caix affibody
a , Schematics showing the experiment setup of Chr3 aneuploidy engineering using CRISPRt with Chr3-sg2 (Chr3-Ct) or NT-sg1 (CTRL), and VHL allele-specific KO ( VHL -ASK) in K1088N PTECs. Cells were cultured for 7 days (D7) or 11 days (D7+4) after treatments. Cells with Chr3-Ct or VHL -ASK on D7+4 were selected for <t>CA9-positive</t> (CA9+) cells with flow sorting. The six samples fixed for scRNA-seq are marked in red. b, Heatmaps showing single-cell chromosome copy number profiles inferred from scRNA-seq data of the indicated samples. The number of cells analysed (n) is shown. Rows represent individual cells and columns represent chromosomes. Copy number status is shown in blue (loss), red (gain) or white (neutral). c, Violin plots showing InferCNV residual expression for Chr3p and Chr3q of the indicated samples. The dots represent individual cells. The blue and red dashed lines represent the thresholds (see Methods) for copy number loss and gain, respectively. The cell proportions with the indicated copy number status are shown in the tables.
Anti Caix Affibody, supplied by Affibody, used in various techniques. Bioz Stars score: 90/100, based on 1 PubMed citations. ZERO BIAS - scores, article reviews, protocol conditions and more
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90
SAS institute caix-specific mouse monoclonal m75 antibody
C -terminal amino acid Ala459 residue cooperates in the regulation of CAIX catalytic function: ( a ) Immunoblot analysis of cell lysates from C33a cells transfected with mock control, CAIX wild type (wt) or mutant (A459G) cultured 48 h in hypoxia. CAIX was detected using mouse monoclonal antibody <t>M75</t> diluted 1:10 and β-actin was detected using mouse monoclonal antibody (CS3700, Cell Signaling Technology, Danvers, Massachusetts) diluted 1:5000. HRP-conjugated anti-mouse antibody (Dako Agilent, Santa Clara, California) diluted 1:5000 was used as a secondary antibody. ( b ) Fluorescence staining of CAIX in non-fixed and non-permeabilized C33a-CAIX wild type as well as A459G transfectants measured by flow cytometry. CAIX was detected using PG-domain specific mouse monoclonal antibody M75 diluted to 1 µg/mL and AlexaFluor 488-conjugated anti-mouse secondary antibody (Invitrogen, Carlsbad, California) diluted 1:1000. Results clearly demonstrate plasma membrane localization of CAIX and showed that 42.7% of C33a-CAIX-wt and 50.9% of C33a-CAIX-A459G transfectants expressed CAIX protein. C33a cells transfected with mock control plasmid were used as a negative control. The data are presented as the mean, n = 2. ( c ) Effect of Ala459 mutation on CAIX-mediated extracellular acidification. The graph shows the differences between pHe values (ΔpH) of culture media from CAIX wt or A459G-transfected and mock-transfected cells cultured 48 h in hypoxia. A459G mutant reduced acidification of extracellular pHe when compared to control wild type C33a-CAIX transfectants. The data are presented as the mean ± s.d., n = 5. Statistical significance was analyzed using the Student’s t -test and expressed as a p -value (* p < 0.05). ( d ) Effect of Ala459 mutation on migration capacity of C33a cells. The graph depicts the results of the wound healing assay given as a % of the area covered by cells migrating to close the wound at 30 h after the scratch, measured at various positions along the wounds. Area covered by C33a cells expressing CAIX-wt was set as 100%. C33a cells expressing CAIX with mutated Ala459 exhibited slower migration. The data are presented as the mean ± s.d., n = 10. Statistical significance was analyzed using the Student’s t -test and expressed as a p -value (* p < 0.05). ( e ) Accumulation of the fluorescent sulfonamide (FITC-CA-i) occurred in hypoxic MDCK cells expressing the CAIX-wt, whereas it was diminished in hypoxic MDCK cell transfected with the CAIX-A459G mutant. Images were taken using objective 10×. ( f ) In situ detection of the interaction between CAIX and AE2 using a proximity ligation assay (PLA). Analysis was performed in C33a cells transiently transfected with CAIX-wt and A459G mutant and cultured in hypoxia for an additional 48 h. Red PLA signal indicates the existence of interaction or close proximity localization also between CAIX with mutated Ala459 and AE2. C33a-mock transfectants served as a negative assay control due to a lack of one target protein. CAIX protein was post-labelled in green, nuclei are blue. Images were taken using objective 40× and zoom 3.
Caix Specific Mouse Monoclonal M75 Antibody, supplied by SAS institute, used in various techniques. Bioz Stars score: 90/100, based on 1 PubMed citations. ZERO BIAS - scores, article reviews, protocol conditions and more
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90
Cell Marque caix (ca9)
C -terminal amino acid Ala459 residue cooperates in the regulation of CAIX catalytic function: ( a ) Immunoblot analysis of cell lysates from C33a cells transfected with mock control, CAIX wild type (wt) or mutant (A459G) cultured 48 h in hypoxia. CAIX was detected using mouse monoclonal antibody <t>M75</t> diluted 1:10 and β-actin was detected using mouse monoclonal antibody (CS3700, Cell Signaling Technology, Danvers, Massachusetts) diluted 1:5000. HRP-conjugated anti-mouse antibody (Dako Agilent, Santa Clara, California) diluted 1:5000 was used as a secondary antibody. ( b ) Fluorescence staining of CAIX in non-fixed and non-permeabilized C33a-CAIX wild type as well as A459G transfectants measured by flow cytometry. CAIX was detected using PG-domain specific mouse monoclonal antibody M75 diluted to 1 µg/mL and AlexaFluor 488-conjugated anti-mouse secondary antibody (Invitrogen, Carlsbad, California) diluted 1:1000. Results clearly demonstrate plasma membrane localization of CAIX and showed that 42.7% of C33a-CAIX-wt and 50.9% of C33a-CAIX-A459G transfectants expressed CAIX protein. C33a cells transfected with mock control plasmid were used as a negative control. The data are presented as the mean, n = 2. ( c ) Effect of Ala459 mutation on CAIX-mediated extracellular acidification. The graph shows the differences between pHe values (ΔpH) of culture media from CAIX wt or A459G-transfected and mock-transfected cells cultured 48 h in hypoxia. A459G mutant reduced acidification of extracellular pHe when compared to control wild type C33a-CAIX transfectants. The data are presented as the mean ± s.d., n = 5. Statistical significance was analyzed using the Student’s t -test and expressed as a p -value (* p < 0.05). ( d ) Effect of Ala459 mutation on migration capacity of C33a cells. The graph depicts the results of the wound healing assay given as a % of the area covered by cells migrating to close the wound at 30 h after the scratch, measured at various positions along the wounds. Area covered by C33a cells expressing CAIX-wt was set as 100%. C33a cells expressing CAIX with mutated Ala459 exhibited slower migration. The data are presented as the mean ± s.d., n = 10. Statistical significance was analyzed using the Student’s t -test and expressed as a p -value (* p < 0.05). ( e ) Accumulation of the fluorescent sulfonamide (FITC-CA-i) occurred in hypoxic MDCK cells expressing the CAIX-wt, whereas it was diminished in hypoxic MDCK cell transfected with the CAIX-A459G mutant. Images were taken using objective 10×. ( f ) In situ detection of the interaction between CAIX and AE2 using a proximity ligation assay (PLA). Analysis was performed in C33a cells transiently transfected with CAIX-wt and A459G mutant and cultured in hypoxia for an additional 48 h. Red PLA signal indicates the existence of interaction or close proximity localization also between CAIX with mutated Ala459 and AE2. C33a-mock transfectants served as a negative assay control due to a lack of one target protein. CAIX protein was post-labelled in green, nuclei are blue. Images were taken using objective 40× and zoom 3.
Caix (Ca9), supplied by Cell Marque, used in various techniques. Bioz Stars score: 90/100, based on 1 PubMed citations. ZERO BIAS - scores, article reviews, protocol conditions and more
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90
Gentex Corporation monoclonal mouse anti-human caix
C -terminal amino acid Ala459 residue cooperates in the regulation of CAIX catalytic function: ( a ) Immunoblot analysis of cell lysates from C33a cells transfected with mock control, CAIX wild type (wt) or mutant (A459G) cultured 48 h in hypoxia. CAIX was detected using mouse monoclonal antibody <t>M75</t> diluted 1:10 and β-actin was detected using mouse monoclonal antibody (CS3700, Cell Signaling Technology, Danvers, Massachusetts) diluted 1:5000. HRP-conjugated anti-mouse antibody (Dako Agilent, Santa Clara, California) diluted 1:5000 was used as a secondary antibody. ( b ) Fluorescence staining of CAIX in non-fixed and non-permeabilized C33a-CAIX wild type as well as A459G transfectants measured by flow cytometry. CAIX was detected using PG-domain specific mouse monoclonal antibody M75 diluted to 1 µg/mL and AlexaFluor 488-conjugated anti-mouse secondary antibody (Invitrogen, Carlsbad, California) diluted 1:1000. Results clearly demonstrate plasma membrane localization of CAIX and showed that 42.7% of C33a-CAIX-wt and 50.9% of C33a-CAIX-A459G transfectants expressed CAIX protein. C33a cells transfected with mock control plasmid were used as a negative control. The data are presented as the mean, n = 2. ( c ) Effect of Ala459 mutation on CAIX-mediated extracellular acidification. The graph shows the differences between pHe values (ΔpH) of culture media from CAIX wt or A459G-transfected and mock-transfected cells cultured 48 h in hypoxia. A459G mutant reduced acidification of extracellular pHe when compared to control wild type C33a-CAIX transfectants. The data are presented as the mean ± s.d., n = 5. Statistical significance was analyzed using the Student’s t -test and expressed as a p -value (* p < 0.05). ( d ) Effect of Ala459 mutation on migration capacity of C33a cells. The graph depicts the results of the wound healing assay given as a % of the area covered by cells migrating to close the wound at 30 h after the scratch, measured at various positions along the wounds. Area covered by C33a cells expressing CAIX-wt was set as 100%. C33a cells expressing CAIX with mutated Ala459 exhibited slower migration. The data are presented as the mean ± s.d., n = 10. Statistical significance was analyzed using the Student’s t -test and expressed as a p -value (* p < 0.05). ( e ) Accumulation of the fluorescent sulfonamide (FITC-CA-i) occurred in hypoxic MDCK cells expressing the CAIX-wt, whereas it was diminished in hypoxic MDCK cell transfected with the CAIX-A459G mutant. Images were taken using objective 10×. ( f ) In situ detection of the interaction between CAIX and AE2 using a proximity ligation assay (PLA). Analysis was performed in C33a cells transiently transfected with CAIX-wt and A459G mutant and cultured in hypoxia for an additional 48 h. Red PLA signal indicates the existence of interaction or close proximity localization also between CAIX with mutated Ala459 and AE2. C33a-mock transfectants served as a negative assay control due to a lack of one target protein. CAIX protein was post-labelled in green, nuclei are blue. Images were taken using objective 40× and zoom 3.
Monoclonal Mouse Anti Human Caix, supplied by Gentex Corporation, used in various techniques. Bioz Stars score: 90/100, based on 1 PubMed citations. ZERO BIAS - scores, article reviews, protocol conditions and more
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Image Search Results


Detection antibodies used

Journal: Cell Reports Methods

Article Title: MPA PASS software enables stitched multiplex, multidimensional EV repertoire analysis and a standard framework for reporting bead-based assays

doi: 10.1016/j.crmeth.2021.100136

Figure Lengend Snippet: Detection antibodies used

Article Snippet: CA9 , Miltenyi Biotec , Cat# 130-110-058; RRID: AB_2651327.

Techniques: Labeling, Recombinant

Journal: Cell Reports Methods

Article Title: MPA PASS software enables stitched multiplex, multidimensional EV repertoire analysis and a standard framework for reporting bead-based assays

doi: 10.1016/j.crmeth.2021.100136

Figure Lengend Snippet:

Article Snippet: CA9 , Miltenyi Biotec , Cat# 130-110-058; RRID: AB_2651327.

Techniques: Clinical Proteomics, Recombinant, Saline, Modification, Software

Key resources table.

Journal: PLOS Pathogens

Article Title: Differential carbonic anhydrase activities control EBV-induced B-cell transformation and lytic cycle reactivation

doi: 10.1371/journal.ppat.1011998

Figure Lengend Snippet: Key resources table.

Article Snippet: Chemical compound, drug , S4 , MedChemExpress , Cat No.: HY-110243 , Carbonic anhydrase inhibitor.

Techniques: In Vitro, Transformation Assay, Generated, Control, Plasmid Preparation, Sequencing, Clone Assay, Binding Assay, Mutagenesis, Polymerase Cycling Assembly, Expressing, Staining, Immunofluorescence, Transduction, Selection, Stable Transfection, Transfection, Software

a , Schematics showing the experiment setup of Chr3 aneuploidy engineering using CRISPRt with Chr3-sg2 (Chr3-Ct) or NT-sg1 (CTRL), and VHL allele-specific KO ( VHL -ASK) in K1088N PTECs. Cells were cultured for 7 days (D7) or 11 days (D7+4) after treatments. Cells with Chr3-Ct or VHL -ASK on D7+4 were selected for CA9-positive (CA9+) cells with flow sorting. The six samples fixed for scRNA-seq are marked in red. b, Heatmaps showing single-cell chromosome copy number profiles inferred from scRNA-seq data of the indicated samples. The number of cells analysed (n) is shown. Rows represent individual cells and columns represent chromosomes. Copy number status is shown in blue (loss), red (gain) or white (neutral). c, Violin plots showing InferCNV residual expression for Chr3p and Chr3q of the indicated samples. The dots represent individual cells. The blue and red dashed lines represent the thresholds (see Methods) for copy number loss and gain, respectively. The cell proportions with the indicated copy number status are shown in the tables.

Journal: bioRxiv

Article Title: Chromosome-Specific Aneuploidy Engineering via dCas9-Induced Centromeric Chromatin Relaxation

doi: 10.1101/2025.04.25.650684

Figure Lengend Snippet: a , Schematics showing the experiment setup of Chr3 aneuploidy engineering using CRISPRt with Chr3-sg2 (Chr3-Ct) or NT-sg1 (CTRL), and VHL allele-specific KO ( VHL -ASK) in K1088N PTECs. Cells were cultured for 7 days (D7) or 11 days (D7+4) after treatments. Cells with Chr3-Ct or VHL -ASK on D7+4 were selected for CA9-positive (CA9+) cells with flow sorting. The six samples fixed for scRNA-seq are marked in red. b, Heatmaps showing single-cell chromosome copy number profiles inferred from scRNA-seq data of the indicated samples. The number of cells analysed (n) is shown. Rows represent individual cells and columns represent chromosomes. Copy number status is shown in blue (loss), red (gain) or white (neutral). c, Violin plots showing InferCNV residual expression for Chr3p and Chr3q of the indicated samples. The dots represent individual cells. The blue and red dashed lines represent the thresholds (see Methods) for copy number loss and gain, respectively. The cell proportions with the indicated copy number status are shown in the tables.

Article Snippet: Cells were stained with 1:50 diluted anti-CA9-PE antibody (Miltenyi, 130-131-321) in flow sorting buffer (1% bovine serum albumin (BSA) and 1μM EDTA in PBS) for 30 min at 4 °C in the dark.

Techniques: Cell Culture, Expressing

a , Schematics showing the expected genotypes generated after Chr3-Ct or VHL -ASK in K1088N PTECs with the corresponding VHL status annotated ( VHL + for VHL proficient, and VHL- for VHL loss) and the target genotypes with VHL loss enriched by CA9-positive (CA9+) flow sorting. b, Scatter plots showing the CA9 and DAPI staining intensities of K1088N PTECs after the indicated treatment. The rectangular box shows the gating strategy to flow sort for live (DAPI-) CA9-positive (CA9+) cells. c, Violin plots showing the signature scores of a curated HIF pathway activation gene set (see Methods) in K1088N PTECs after the indicated treatment. The dots represent individual cells. The dashed line represents the calculated threshold (see Methods) for defining cells with a high (HIF-High) or a low (HIF-Low) HIF pathway signature score, used for assigning VHL proficient ( VHL +) or VHL loss ( VHL- ) status.

Journal: bioRxiv

Article Title: Chromosome-Specific Aneuploidy Engineering via dCas9-Induced Centromeric Chromatin Relaxation

doi: 10.1101/2025.04.25.650684

Figure Lengend Snippet: a , Schematics showing the expected genotypes generated after Chr3-Ct or VHL -ASK in K1088N PTECs with the corresponding VHL status annotated ( VHL + for VHL proficient, and VHL- for VHL loss) and the target genotypes with VHL loss enriched by CA9-positive (CA9+) flow sorting. b, Scatter plots showing the CA9 and DAPI staining intensities of K1088N PTECs after the indicated treatment. The rectangular box shows the gating strategy to flow sort for live (DAPI-) CA9-positive (CA9+) cells. c, Violin plots showing the signature scores of a curated HIF pathway activation gene set (see Methods) in K1088N PTECs after the indicated treatment. The dots represent individual cells. The dashed line represents the calculated threshold (see Methods) for defining cells with a high (HIF-High) or a low (HIF-Low) HIF pathway signature score, used for assigning VHL proficient ( VHL +) or VHL loss ( VHL- ) status.

Article Snippet: Cells were stained with 1:50 diluted anti-CA9-PE antibody (Miltenyi, 130-131-321) in flow sorting buffer (1% bovine serum albumin (BSA) and 1μM EDTA in PBS) for 30 min at 4 °C in the dark.

Techniques: Generated, Staining, Activation Assay

C -terminal amino acid Ala459 residue cooperates in the regulation of CAIX catalytic function: ( a ) Immunoblot analysis of cell lysates from C33a cells transfected with mock control, CAIX wild type (wt) or mutant (A459G) cultured 48 h in hypoxia. CAIX was detected using mouse monoclonal antibody M75 diluted 1:10 and β-actin was detected using mouse monoclonal antibody (CS3700, Cell Signaling Technology, Danvers, Massachusetts) diluted 1:5000. HRP-conjugated anti-mouse antibody (Dako Agilent, Santa Clara, California) diluted 1:5000 was used as a secondary antibody. ( b ) Fluorescence staining of CAIX in non-fixed and non-permeabilized C33a-CAIX wild type as well as A459G transfectants measured by flow cytometry. CAIX was detected using PG-domain specific mouse monoclonal antibody M75 diluted to 1 µg/mL and AlexaFluor 488-conjugated anti-mouse secondary antibody (Invitrogen, Carlsbad, California) diluted 1:1000. Results clearly demonstrate plasma membrane localization of CAIX and showed that 42.7% of C33a-CAIX-wt and 50.9% of C33a-CAIX-A459G transfectants expressed CAIX protein. C33a cells transfected with mock control plasmid were used as a negative control. The data are presented as the mean, n = 2. ( c ) Effect of Ala459 mutation on CAIX-mediated extracellular acidification. The graph shows the differences between pHe values (ΔpH) of culture media from CAIX wt or A459G-transfected and mock-transfected cells cultured 48 h in hypoxia. A459G mutant reduced acidification of extracellular pHe when compared to control wild type C33a-CAIX transfectants. The data are presented as the mean ± s.d., n = 5. Statistical significance was analyzed using the Student’s t -test and expressed as a p -value (* p < 0.05). ( d ) Effect of Ala459 mutation on migration capacity of C33a cells. The graph depicts the results of the wound healing assay given as a % of the area covered by cells migrating to close the wound at 30 h after the scratch, measured at various positions along the wounds. Area covered by C33a cells expressing CAIX-wt was set as 100%. C33a cells expressing CAIX with mutated Ala459 exhibited slower migration. The data are presented as the mean ± s.d., n = 10. Statistical significance was analyzed using the Student’s t -test and expressed as a p -value (* p < 0.05). ( e ) Accumulation of the fluorescent sulfonamide (FITC-CA-i) occurred in hypoxic MDCK cells expressing the CAIX-wt, whereas it was diminished in hypoxic MDCK cell transfected with the CAIX-A459G mutant. Images were taken using objective 10×. ( f ) In situ detection of the interaction between CAIX and AE2 using a proximity ligation assay (PLA). Analysis was performed in C33a cells transiently transfected with CAIX-wt and A459G mutant and cultured in hypoxia for an additional 48 h. Red PLA signal indicates the existence of interaction or close proximity localization also between CAIX with mutated Ala459 and AE2. C33a-mock transfectants served as a negative assay control due to a lack of one target protein. CAIX protein was post-labelled in green, nuclei are blue. Images were taken using objective 40× and zoom 3.

Journal: International Journal of Molecular Sciences

Article Title: PIMT Binding to C-Terminal Ala459 of CAIX Is Involved in Inside-Out Signaling Necessary for Its Catalytic Activity

doi: 10.3390/ijms21228545

Figure Lengend Snippet: C -terminal amino acid Ala459 residue cooperates in the regulation of CAIX catalytic function: ( a ) Immunoblot analysis of cell lysates from C33a cells transfected with mock control, CAIX wild type (wt) or mutant (A459G) cultured 48 h in hypoxia. CAIX was detected using mouse monoclonal antibody M75 diluted 1:10 and β-actin was detected using mouse monoclonal antibody (CS3700, Cell Signaling Technology, Danvers, Massachusetts) diluted 1:5000. HRP-conjugated anti-mouse antibody (Dako Agilent, Santa Clara, California) diluted 1:5000 was used as a secondary antibody. ( b ) Fluorescence staining of CAIX in non-fixed and non-permeabilized C33a-CAIX wild type as well as A459G transfectants measured by flow cytometry. CAIX was detected using PG-domain specific mouse monoclonal antibody M75 diluted to 1 µg/mL and AlexaFluor 488-conjugated anti-mouse secondary antibody (Invitrogen, Carlsbad, California) diluted 1:1000. Results clearly demonstrate plasma membrane localization of CAIX and showed that 42.7% of C33a-CAIX-wt and 50.9% of C33a-CAIX-A459G transfectants expressed CAIX protein. C33a cells transfected with mock control plasmid were used as a negative control. The data are presented as the mean, n = 2. ( c ) Effect of Ala459 mutation on CAIX-mediated extracellular acidification. The graph shows the differences between pHe values (ΔpH) of culture media from CAIX wt or A459G-transfected and mock-transfected cells cultured 48 h in hypoxia. A459G mutant reduced acidification of extracellular pHe when compared to control wild type C33a-CAIX transfectants. The data are presented as the mean ± s.d., n = 5. Statistical significance was analyzed using the Student’s t -test and expressed as a p -value (* p < 0.05). ( d ) Effect of Ala459 mutation on migration capacity of C33a cells. The graph depicts the results of the wound healing assay given as a % of the area covered by cells migrating to close the wound at 30 h after the scratch, measured at various positions along the wounds. Area covered by C33a cells expressing CAIX-wt was set as 100%. C33a cells expressing CAIX with mutated Ala459 exhibited slower migration. The data are presented as the mean ± s.d., n = 10. Statistical significance was analyzed using the Student’s t -test and expressed as a p -value (* p < 0.05). ( e ) Accumulation of the fluorescent sulfonamide (FITC-CA-i) occurred in hypoxic MDCK cells expressing the CAIX-wt, whereas it was diminished in hypoxic MDCK cell transfected with the CAIX-A459G mutant. Images were taken using objective 10×. ( f ) In situ detection of the interaction between CAIX and AE2 using a proximity ligation assay (PLA). Analysis was performed in C33a cells transiently transfected with CAIX-wt and A459G mutant and cultured in hypoxia for an additional 48 h. Red PLA signal indicates the existence of interaction or close proximity localization also between CAIX with mutated Ala459 and AE2. C33a-mock transfectants served as a negative assay control due to a lack of one target protein. CAIX protein was post-labelled in green, nuclei are blue. Images were taken using objective 40× and zoom 3.

Article Snippet: After 48 h of hypoxic incubation, transiently transfected cells were scraped into culture medium, centrifuged at low speed, washed twice with Versene solution and incubated with the CAIX-specific mouse monoclonal M75 antibody (1 µg/mL, BMC SAS, Bratislava, Slovakia) for 30 min at 4 °C.

Techniques: Western Blot, Transfection, Mutagenesis, Cell Culture, Fluorescence, Staining, Flow Cytometry, Plasmid Preparation, Negative Control, Migration, Wound Healing Assay, Expressing, In Situ, Proximity Ligation Assay