Clone:
REA794
Type of antibody:
Primary antibodies, Recombinant antibodies
Isotype:
recombinant human IgG1
Applications:
FC, MICS, IF, IHC
Alternative names:
ENG, END, HHT1, ORW1, Endoglin

Extended validation for CD105 Antibody, anti-human, REAfinity™

Specificity

Epitope competition
In order to compare the epitope specificity of an antibody, the clone being used is compared with other known clones recognizing the same antigen in a competition assay.
Other clonesOverlap in epitope recognition with REA794
43A3-
SN6h-
266++
MEM-226-
43A4E1++
REAL218++
Cells were incubated with an excess of purified unconjugated CD105 (REA794) antibody followed by staining with fluorochrome-conjugated antibodies of other known clones against the same marker. Based on the fluorescence signal obtained, the clones were identified as recognizing completely overlapping (++), partially overlapping (+), or completely different epitopes (-) of the marker.

Sensitivity

Performance comparison
Selected fluorochrome conjugated antibodies from Miltenyi Biotec were compared to commercially available hybridoma clones in flow cytometry analysis.
View details
Flow cytometric comparison of different clones for CD105. HUVECs were stained with CD105 antibodies and plotted against the side scatter. As a control, CD105 antibody staining was omitted and cells were measured in the same channels. Flow cytometry was performed with the MACSQuant® Analyzer. Cell debris, dead cells, and cell doublets were excluded from the analysis based on scatter signals and 4',6-diamidino-2-phenylindole (DAPI) fluorescence. No FcR Blocking Reagent was used. The recommended titers of respective antibodies from different suppliers were used.
View details
Flow cytometric comparison of different clones for CD105. HUVECs were stained with CD105 antibodies and plotted against the side scatter. As a control, CD105 antibody staining was omitted and cells were measured in the same channels. Flow cytometry was performed with the MACSQuant® Analyzer. Cell debris, dead cells, and cell doublets were excluded from the analysis based on scatter signals and 4',6-diamidino-2-phenylindole (DAPI) fluorescence. No FcR Blocking Reagent was used. The recommended titers of respective antibodies from different suppliers were used.
View details
Flow cytometric comparison of different clones for CD105. HUVECs were stained with CD105 antibodies and plotted against the side scatter. As a control, CD105 antibody staining was omitted and cells were measured in the same channels. Flow cytometry was performed with the MACSQuant® Analyzer. Cell debris, dead cells, and cell doublets were excluded from the analysis based on scatter signals and 4',6-diamidino-2-phenylindole (DAPI) fluorescence. No FcR Blocking Reagent was used. The recommended titers of respective antibodies from different suppliers were used.
View details
Flow cytometric comparison of different clones for CD105. HUVECs were stained with CD105 antibodies and plotted against the side scatter. As a control, CD105 antibody staining was omitted and cells were measured in the same channels. Flow cytometry was performed with the MACSQuant® Analyzer. Cell debris, dead cells, and cell doublets were excluded from the analysis based on scatter signals and 4',6-diamidino-2-phenylindole (DAPI) fluorescence. No FcR Blocking Reagent was used. The recommended titers of respective antibodies from different suppliers were used.
View details
Flow cytometric comparison of different clones for CD105. HUVECs were stained with CD105 antibodies and plotted against the side scatter. As a control, CD105 antibody staining was omitted and cells were measured in the same channels. Flow cytometry was performed with the MACSQuant® Analyzer. Cell debris, dead cells, and cell doublets were excluded from the analysis based on scatter signals and 4',6-diamidino-2-phenylindole (DAPI) fluorescence. No FcR Blocking Reagent was used. The recommended titers of respective antibodies from different suppliers were used.
View details
Flow cytometric comparison of different clones for CD105. HUVECs were stained with CD105 antibodies and plotted against the side scatter. As a control, CD105 antibody staining was omitted and cells were measured in the same channels. Flow cytometry was performed with the MACSQuant® Analyzer. Cell debris, dead cells, and cell doublets were excluded from the analysis based on scatter signals and 4',6-diamidino-2-phenylindole (DAPI) fluorescence. No FcR Blocking Reagent was used. The recommended titers of respective antibodies from different suppliers were used.
View details
Flow cytometric comparison of different clones for CD105. HUVECs were stained with CD105 antibodies and plotted against the side scatter. As a control, CD105 antibody staining was omitted and cells were measured in the same channels. Flow cytometry was performed with the MACSQuant® Analyzer. Cell debris, dead cells, and cell doublets were excluded from the analysis based on scatter signals and 4',6-diamidino-2-phenylindole (DAPI) fluorescence. No FcR Blocking Reagent was used. The recommended titers of respective antibodies from different suppliers were used.
View details
Flow cytometric comparison of different clones for CD105. HUVECs were stained with CD105 antibodies and plotted against the side scatter. As a control, CD105 antibody staining was omitted and cells were measured in the same channels. Flow cytometry was performed with the MACSQuant® Analyzer. Cell debris, dead cells, and cell doublets were excluded from the analysis based on scatter signals and 4',6-diamidino-2-phenylindole (DAPI) fluorescence. No FcR Blocking Reagent was used. The recommended titers of respective antibodies from different suppliers were used.
Flow cytometric comparison of different clones for CD105. HUVECs were stained with CD105 antibodies and plotted against the side scatter. As a control, CD105 antibody staining was omitted and cells were measured in the same channels. Flow cytometry was performed with the MACSQuant® Analyzer. Cell debris, dead cells, and cell doublets were excluded from the analysis based on scatter signals and 4',6-diamidino-2-phenylindole (DAPI) fluorescence. No FcR Blocking Reagent was used. The recommended titers of respective antibodies from different suppliers were used.
Fixation data
To provide an indication on how an antibody performs after fixation of cells, in-house data on staining results before and after fixation with 3.7% formaldehyde using Miltenyi Biotec antibodies are provided. Different experimental settings may lead to different results.
No fixation
Post fixation
View details
Comparison of staining pattern on non-fixed and fixed cells using CD105 (REA794). The performance of the antibody after fixation was tested by comparing the staining pattern on fresh (no fixation) versus fixed (post fixation) cells.
View details
Comparison of staining pattern on non-fixed and fixed cells using CD105 (REA794). The performance of the antibody after fixation was tested by comparing the staining pattern on fresh (no fixation) versus fixed (post fixation) cells.
Comparison of staining pattern on non-fixed and fixed cells using CD105 (REA794). The performance of the antibody after fixation was tested by comparing the staining pattern on fresh (no fixation) versus fixed (post fixation) cells.

Specifications for CD105 Antibody, anti-human, REAfinity™

Overview

Clone REA794 recognizes the CD105 antigen, also known as endoglin, which serves as a receptor for the growth and differentiation factors TGF-β1 and TGF-β3. An epitope of CD105 is recognized by the SH-2 antibody, which was raised against human mesenchymal stromal cells (MSC) that show mesodermal differentiation capacity. Therefore, it can be used for studies on mesengenesis. CD105 is also expressed on mature endothelial cells and on some leukemic cells of B lymphoid and myeloid origin.
Additional information: Clone REA794 displays negligible binding to Fc receptors.

Alternative names

ENG, END, HHT1, ORW1, Endoglin

Detailed product information

Technical specifications

CloneREA794
Clonalitymonoclonal
Isotyperecombinant human IgG1
Isotype controlREA Control Antibody (S), human IgG1
Hostcell line
Type of antibodyPrimary antibodies, Recombinant antibodies
Specieshuman
AntigenCD105
Alternative names of antigenENG, END, HHT1, ORW1, Endoglin
Molecular mass of antigen [kDa]68
Distribution of antigenendothelial cells, monocytes, leukemia cells, mesenchymal stem cells, bone marrow
Entrez Gene ID2022
RRIDAB_2654422, AB_2654423, AB_2654424, AB_2654425, AB_2654426, AB_2654427, AB_2654428, AB_2654429, AB_2654430, AB_2654431, AB_2654432, AB_2654433, AB_2654434, AB_2654435, AB_2654436, AB_2654437, AB_2654438, AB_2654421

References for CD105 Antibody, anti-human, REAfinity™

Publications

  1. Bellón, T. et al. (1993) Identification and expression of two forms of the human transforming growth factor-beta-binding protein endoglin with distinct cytoplasmic regions. Eur. J. Immunol. 23(9): 2340-2345
  2. Barry, F. P. et al. (1999) The monoclonal antibody SH-2, raised against human mesenchymal stem cells, recognizes an epitope on endoglin (CD105). Biochem. Biophys. Res. Commun. 265: 134-139
  3. Majumdar, M. K. et al. (2000) Isolation, characterization, and chondrogenic potential of human bone marrow-derived multipotential stromal cells. J. Cell. Physiol. 185: 98-106

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