Overview: Product Name CENP-A Antibody DescriptionMouse Anti-Human CENP-A Monoclonal IgG1 Species Reactivity Human Applications WB, ICC/IF Antibody Dilution WB (1:1000), ICC/IF (1:100); optimal dilutions for assays should be determined by the user. Host Species Mouse Immunogen Species Human Immunogen Synthetic peptide corresponding to a portion of human CENP-A Concentration 1 mg/ml Conjugates Alkaline Phosphatase, APC, ATTO 390, ATTO 488, ATTO 565, ATTO 594, ATTO 633, ATTO 655, ATTO 680, ATTO 700, Biotin, FITC, HRP, PE/ATTO 594, PerCP, RPE, Streptavidin, Unconjugated PerCP Overview:Peridinin-Chlorophyll-Protein ComplexSmall phycobiliproteinIsolated from red algaeLarge stokes shift (195 nm)Molecular Weight: 35 kDaPerCP Datasheet Optical Properties:λex = 482 nmλem = 677 nmεmax = 1.96 x 106Laser = 488 nm  PE/ATTO 594PE/ATTO 594 is a tandem conjugate, where PE is excited at 535 nm and transfers energy to ATTO 594 via FRET (fluorescence resonance energy transfer), which emits at 627 nm.Overview:High fluorescence yieldHigh photostabilityVery hydrophilicExcellent solubility in waterVery little aggregationPE/ATTO 594 DatasheetOptical Properties:λex = 535 nmλem = 627 nmLaser = 488 to 561 nm   FITC (Fluorescein)Overview:Excellent fluorescence quantum yieldHigh rate of photobleachingGood solubility in waterBroad emission spectrumpH dependent spectraMolecular formula: C20H12O5Molar mass: 332.3 g/molFITC-Fluorescent-conjugateOptical Properties:λex = 494 nmλem = 520 nmεmax = 7.3×104Φf = 0.92τfl = 5.0 nsBrightness = 67.2Laser = 488 nmFilter set = FITC  ATTO 700Overview:High fluorescence yieldExcellent thermal and photostabilityQuenched by electron donorsVery hydrophilicGood solubility in polar solventsZwitterionic dyeMolar Mass: 575 g/molATTO 700 Datasheet Optical Properties:λex = 700 nmλem = 719 nmεmax = 1.25×105Φf = 0.25τfl = 1.6 nsBrightness = 31.3Laser = 676 nmFilter set = Cy®5.5  ATTO 680Overview:High fluorescence yieldExcellent thermal and photostabilityQuenched by electron donorsVery hydrophilicGood solubility in polar solventsZwitterionic dyeMolar Mass: 631 g/molATTO 680 Datasheet Optical Properties:λex = 680 nmλem = 700 nmεmax = 1.25×105Φf = 0.30τfl = 1.7 nsBrightness = 37.5Laser = 633 – 676 nmFilter set = Cy®5.5  ATTO 655Overview:High fluorescence yieldHigh thermal and photostabilityExcellent ozone resistanceQuenched by electron donorsVery hydrophilicGood solubility in polar solventsZwitterionic dyeMolar Mass: 634 g/molATTO 655 DatasheetOptical Properties:λex = 663 nmλem = 684 nmεmax = 1.25×105Φf = 0.30τfl = 1.8 nsBrightness = 37.5Laser = 633 – 647 nmFilter set = Cy®5  ATTO 633Overview:High fluorescence yieldHigh thermal and photostabilityModerately hydrophilicGood solubility in polar solventsStable at pH 4 – 11Cationic dye, perchlorate saltMolar Mass: 652.2 g/molATTO 633 DatasheetOptical Properties:λex = 629 nmλem = 657 nmεmax = 1.3×105Φf = 0.64τfl = 3.2 nsBrightness = 83.2Laser = 633 nmFilter set = Cy®5  ATTO 594Overview:High fluorescence yieldHigh photostabilityVery hydrophilicExcellent solubility in waterVery little aggregationNew dye with net charge of -1Molar Mass: 1137 g/molATTO 594 Datasheet Optical Properties:λex = 601 nmλem = 627 nmεmax = 1.2×105Φf = 0.85τfl = 3.5 nsBrightness = 102Laser = 594 nmFilter set = Texas Red®  ATTO 565Overview:High fluorescence yieldHigh thermal and photostabilityGood solubility in polar solventsExcellent solubility in waterVery little aggregationRhodamine dye derivativeMolar Mass: 611 g/molATTO 565 Datasheet Optical Properties:λex = 563 nmλem = 592 nmεmax = 1.2×105Φf = 0.9τfl = 3.4 nBrightness = 10Laser = 532 nmFilter set = TRITC   ATTO 488Overview:High fluorescence yieldHigh photostabilityVery hydrophilicExcellent solubility in waterVery little aggregationNew dye with net charge of -1Molar Mass: 804 g/mol ATTO 488 Datasheet  Optical Properties:λex = 501 nmλem = 523 nmεmax = 9.0×104Φf = 0.80τfl = 4.1 nsBrightness = 72Laser = 488 nmFilter set = FITC   ATTO 390Overview:High fluorescence yieldLarge Stokes-shift (89 nm)Good photostabilityModerately hydrophilicGood solubility in polar solventsCoumarin derivate, unchargedLow molar mass: 343.42 g/mol ATTO 390 DatasheetOptical Properties:λex = 390 nmλem = 479 nmεmax = 2.4×104Φf = 0.90τfl = 5.0 nsBrightness = 21.6Laser = 365 or 405 nm APC (Allophycocyanin)Overview:High quantum yieldLarge phycobiliprotein6 chromophores per moleculeIsolated from red algaeMolecular Weight: 105 kDaAPC Datasheet Optical Properties:λex = 650 nmλem = 660 nmεmax = 7.0×105Φf = 0.68Brightness = 476Laser = 594 or 633 nmFilter set = Cy®5 StreptavidinProperties:Homo-tetrameric protein purified from Streptomyces avidinii which binds four biotin molecules with extremely high affinityMolecular weight: 53 kDaFormula: C10H16N2O3SApplications: Western blot, immunohistochemistry, and ELISAStreptavidin DatasheetBiotinProperties:Binds tetrameric avidin proteins including Streptavidin and neuravidin with very high affinityMolar mass: 244.31 g/molFormula: C10H16N2O3SApplications: Western blot, immunohistochemistry, and ELISABiotin DatasheetHRP (Horseradish peroxidase)Properties:Enzymatic activity is used to amplify weak signals and increase visibility of a targetReadily combines with hydrogen peroxide (H2O2) to form HRP-H2O2 complex which can oxidize various hydrogen donorsCatalyzes the conversion of:Chromogenic substrates (e.g. TMB, DAB, ABTS) into coloured productsChemiluminescent substrates (e.g. luminol and isoluminol) into light emitting products via enhanced chemiluminescence (ECL)Fluorogenic substrates (e.g. tyramine, homovanillic acid, and 4-hydroxyphenyl acetic acid) into fluorescent productsHigh turnover rate enables rapid generation of a strong signal44 kDa glycoproteinExtinction coefficient: 100 (403 nm)Applications: Western blot, immunohistochemistry, and ELISAHRP DatasheetAP (Alkaline Phosphatase)Properties:Broad enzymatic activity for phosphate esters of alcohols, amines, pyrophosphate, and phenolsCommonly used to dephosphorylate the 5’-termini of DNA and RNA to prevent self-ligationCatalyzes the conversion of:Chromogenic substrates (e.g. pNPP, naphthol AS-TR phosphate, BCIP) into coloured productsFluorogenic substrates (e.g. 4-methylumbelliferyl phosphate) into fluorescent productsMolecular weight: 140 kDaApplications: Western blot, immunohistochemistry, and ELISAAP Datasheet  R-PE (R-Phycoerythrin)Overview:Broad excitation spectrumHigh quantum yieldPhotostableMember of the phycobiliprotein familyIsolated from red algaeExcellent solubility in waterMolecular Weight: 250 kDaR-PE Datasheet Optical Properties:λex = 565 nmλem = 575 nmεmax = 2.0×106 Φf = 0.84Brightness = 1.68 x 103Laser = 488 to 561 nmFilter set = TRITC  Properties Storage Buffer PBS, 50% glycerol, 0.09% sodium azide Storage Temperature -20ºC Shipping Temperature Blue Ice or 4ºC Purification Protein G Purified Clonality Monoclonal Clone Number 5A7-2E11 Isotype IgG1 Specificity Detects ~18kDa. Recognizes Human CENP-A. Cite This Product StressMarq Biosciences Cat# SMC-202, RRID: AB_2699178 Certificate of Analysis 1 µg/ml of SMC-202 was sufficient for detection of CENPA in 20 µg of U2OS cell lysate by colorimetric immunoblot analysis using Goat anti-mouse IgG:HRP as the secondary antibody. Biological Description Alternative Names CENP A Antibody, cenpa Antibody, Centromere auto antigen A Antibody, Histone H3 like centromeric protein A Antibody Research Areas Cell Signaling, Epigenetics, Epigenetics and Nuclear Signaling Cellular Localization centromere, Chromosome, kinetochore, Nucleus Accession Number NP_001035891.1 Gene ID 1058 Swiss Prot P49450 Scientific Background A replicated chromosome includes two kinetochores that control chromosome segregation during mitosis. The Centromere Protein-A, CENP-A, is a Histone H3-like protein that contains a C-terminal H3-like domain, which is required for centromere localization of CENP-A, and an antigenic N-terminal domain. CENP-A, originally isolated from HeLa cells, is essential for kinetochore targeting of CENP-C. In the presence of DNA CENP-A forms an octa-meric complex with histones H4, H2A, H2B. CENP-A specifically localizes to active centromeres and is a component of specialized centromeric nucleosomes, on which kinetochores are assembled. CENP-A is essential for nucleosomal packaging of centromeric DNA at interphase and functions as a centromere formation marker on the chromosome. References 1. Rieder C.L., et al. (1998) Trends Cell Biol. 8: 310-318. 2. Choo K.H. (2000) Trends Cell Biol. 10: 182-188. 3. Muro Y., et al. (2000) Clin. Exp. Immunol. 120: 218-223. 4. Howman E.V., et al. (2000) Proc. Natl. Acad. Sci. USA 97: 1148-1153. Product Images Immunocytochemistry/Immunofluorescence analysis using Mouse Anti-CENP-A Monoclonal Antibody, Clone 5A7-2E11 (SMC-202). Tissue: Colon cancer cell line (HT-29). Species: Human. Fixation: 4% Formaldehyde for 15 min at RT. Primary Antibody: Mouse Anti-CENP-A Monoclonal Antibody (SMC-202) at 1:100 for 60 min at RT. Secondary Antibody: Goat Anti-Mouse ATTO 488 at 1:100 for 60 min at RT. Counterstain: DAPI (blue) nuclear stain at 1:5000 for 5 min RT. Localization: Nucleus. Magnification: 60X. Western Blot analysis of Human U2OS cell lysate showing detection of CENP-A protein using Mouse Anti-CENP-A Monoclonal Antibody, Clone 5A7-2E11 (SMC-202). Primary Antibody: Mouse Anti-CENP-A Monoclonal Antibody (SMC-202) at 1:1000. Product Citations (0) Currently there are no citations for this product.AP (Alkaline Phosphatase)Properties:Broad enzymatic activity for phosphate esters of alcohols, amines, pyrophosphate, and phenolsCommonly used to dephosphorylate the 5’-termini of DNA and RNA to prevent self-ligationCatalyzes the conversion of:Chromogenic substrates (e.g. pNPP, naphthol AS-TR phosphate, BCIP) into coloured productsFluorogenic substrates (e.g. 4-methylumbelliferyl phosphate) into fluorescent productsMolecular weight: 140 kDaApplications: Western blot, immunohistochemistry, and ELISAAP Datasheet