DYKDDDDK Tag (FLAG) Recombinant Rabbit Monoclonal Antibody [PSH07-02]
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Catalog# HA722780
DYKDDDDK Tag (FLAG) Recombinant Rabbit Monoclonal Antibody [PSH07-02]
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WB
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IHC-P
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IF-Cell
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FC
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IP
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ChIP
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Species independent
概述
产品名称
DYKDDDDK Tag (FLAG) Recombinant Rabbit Monoclonal Antibody [PSH07-02]
抗体类型
Recombinant Rabbit monoclonal Antibody
种属反应性
Species independent
验证应用
WB, IHC-P, IF-Cell, FC, IP, ChIP
偶联
unconjugated
克隆号
PSH07-02
产品特性
形态
Liquid
浓度
1ug/ul
存放说明
Store at +4℃ after thawing. Aliquot store at -20℃. Avoid repeated freeze / thaw cycles.
存储缓冲液
PBS (pH7.4), 0.1% BSA, 40% Glycerol. Preservative: 0.05% Sodium Azide.
亚型
IgG
纯化方式
Protein A affinity purified.
应用稀释度
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WB
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1:20,000-1:50,000
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IHC-P
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1:1,000
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IF-Cell
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1:10,000
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FC
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1:1,000
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IP
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1-2μg/sample
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ChIP
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Use 0.5~2 μg for 25 μg of chromatin.
靶点
功能
FLAG-tag, or FLAG octapeptide, or FLAG epitope, is a polypeptide protein tag that can be added to a protein using recombinant DNA technology, having the sequence motif DYKDDDDK (where D=aspartic acid, Y=tyrosine, and K=lysine). It is one of the most specific tags and it is an artificial antigen to which specific, high affinity monoclonal antibodies have been developed and hence can be used for protein purification by affinity chromatography and also can be used for locating proteins within living cells. It has been used to separate recombinant, overexpressed protein from wild-type protein expressed by the host organism. It can also be used in the isolation of protein complexes with multiple subunits, because its mild purification procedure tends not to disrupt such complexes. It has been used to obtain proteins of sufficient purity and quality to carry out 3D structure determination by x-ray crystallography. A FLAG-tag can be used in many different assays that require recognition by an antibody. If there is no antibody against a given protein, adding a FLAG-tag to a protein allows the protein to be studied with an antibody against the FLAG sequence. Examples are cellular localization studies by immunofluorescence, immunoprecipitation or detection by SDS PAGE protein electrophoresis and Western blotting. The peptide sequence of the FLAG-tag from the N-terminus to the C-terminus is: DYKDDDDK (1012 Da). Additionally, it may be used in tandem, commonly the 3xFLAG peptide: DYKDHD-G-DYKDHD-I-DYKDDDDK (with the final tag encoding an enterokinase cleavage site). It can be fused to the C-terminus or the N-terminus of a protein, or inserted within a protein. The tyrosine residue in the FLAG-tag can be sulfated, which can affect antibody recognition of the FLAG epitope. The FLAG-tag can be used in conjunction with other affinity tags, for example a polyhistidine tag (His-tag), HA-tag or myc-tag.
背景文献
暂无
别名
DDDDK epitope tag antibody
DDDK antibody
ddk antibody
DYKDDDDK antibody
DYKDDDDK epitope tag antibody
DYKDDDDK tag antibody
ECS epitope tag antibody
ECS tag antibody
Enterokinase Cleavage Site epitope tag antibody
Enterokinase Cleavage Site tag antibody
展开图片
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Western blot analysis of DYKDDDDK Tag (FLAG) on different lysates with Rabbit anti-DYKDDDDK Tag (FLAG) antibody (HA722780) at 1/20,000 dilution.
Lane 1: 293T transfected with FLAG-tagged empty control cell lysate
Lane 2: 293T transfected with FLAG-tagged MYRF (N-terminal) cell lysate
Lane 3: 293T transfected with FLAG-tagged PAF1 (C-terminal) cell lysate
Lane 4: 293T transfected with FLAG-tagged Histone H3 (C-terminal) cell lysate
Lysates/proteins at 10 µg/Lane.
Exposure time: 2 seconds; ECL: K1801;
4-20% SDS-PAGE gel.
Proteins were transferred to a PVDF membrane and blocked with 5% NFDM/TBST for 1 hour at room temperature. The primary antibody (HA722780) at 1/20,000 dilution was used in 5% NFDM/TBST at 4℃ overnight. Goat Anti-Rabbit IgG - HRP Secondary Antibody (HA1001) at 1/50,000 dilution was used for 1 hour at room temperature. -
Immunocytochemistry analysis of HeLa cells labeling DYKDDDDK Tag (FLAG) with Rabbit anti-DYKDDDDK Tag (FLAG) antibody (HA722780) at 1/10,000 dilution.
HeLa cells, transfected with FLAG-tagged empty control, Claudin 18.2 (C-terminal) or Histone H3.1 (N-terminal) expression vector, respectively, were fixed in 4% paraformaldehyde for 10 minutes at room temperature, permeabilized with 0.1% Triton X-100 in PBS for 15 minutes at room temperature, then blocked with 1% BSA in 10% negative goat serum for 1 hour at room temperature. Cells were then incubated with Rabbit anti-DYKDDDDK Tag (FLAG) antibody (HA722780) at 1/10,000 dilution in 1% BSA in PBST overnight at 4 ℃. Goat Anti-Rabbit IgG H&L (iFluor™ 488, HA1121) was used as the secondary antibody at 1/1,000 dilution. PBS instead of the primary antibody was used as the secondary antibody only control. Nuclear DNA was labelled in blue with DAPI.
Beta tubulin (M1305-2, red) was stained at 1/100 dilution overnight at +4℃. Goat Anti-Mouse IgG H&L (iFluor™ 594, HA1126) was used as the secondary antibody at 1/1,000 dilution. -
Immunohistochemical analysis of paraffin-embedded HeLa transfected with FLAG-tagged Histon H3.1 (N-terminal) cells with Rabbit anti-DYKDDDDK Tag (FLAG) antibody (HA722780) at 1/1,000 dilution.
The section was pre-treated using heat mediated antigen retrieval with Tris-EDTA buffer (pH 9.0) for 20 minutes. The tissues were blocked in 1% BSA for 20 minutes at room temperature, washed with ddH2O and PBS, and then probed with the primary antibody (HA722780) at 1/1,000 dilution for 1 hour at room temperature. The detection was performed using an HRP conjugated compact polymer system. DAB was used as the chromogen. Tissues were counterstained with hematoxylin and mounted with DPX. -
Immunohistochemical analysis of paraffin-embedded HeLa transfected with FLAG-tagged Claudin 18.2 (C-terminal) cells with Rabbit anti-DYKDDDDK Tag (FLAG) antibody (HA722780) at 1/1,000 dilution.
The section was pre-treated using heat mediated antigen retrieval with Tris-EDTA buffer (pH 9.0) for 20 minutes. The tissues were blocked in 1% BSA for 20 minutes at room temperature, washed with ddH2O and PBS, and then probed with the primary antibody (HA722780) at 1/1,000 dilution for 1 hour at room temperature. The detection was performed using an HRP conjugated compact polymer system. DAB was used as the chromogen. Tissues were counterstained with hematoxylin and mounted with DPX. -
DYKDDDDK Tag (FLAG) was immunoprecipitated in 2µg L-929 transfected with FLAG-tagged CD5 (C-terminal) cell lysate with HA722780. Western blot was performed from the immunoprecipitate using DYKDDDDK Tag (FLAG) (HA722780) at 1/1,000 dilution. Mouse anti Rabbit IgG heavy chain (Fc) secondary antibody (M1003-7) at 1/100,000 dilution was used for 1 hour at room temperature.
Lane 1: L-929 transfected with FLAG-tagged CD5 (C-terminal) cell lysate (input).
Lane 2: Rabbit IgG instead of HA722780 IP in L-929 transfected with FLAG-tagged CD5 (C-terminal) cell lysate.
Lane 3: HA722780 IP in L-929 transfected with FLAG-tagged CD5 (C-terminal) cell lysate.
Blocking/Dilution buffer: 5% NFDM/TBST
Exposure time: 17 seconds; ECL: K1801 -
DYKDDDDK Tag (FLAG) was immunoprecipitated in 2µg HeLa transfected with FLAG-tagged Histon H3.1 (N-terminal) cell lysate with HA722780. Western blot was performed from the immunoprecipitate using DYKDDDDK Tag (FLAG) (HA722780) at 1/1,000 dilution. Mouse anti Rabbit IgG heavy chain (Fc) secondary antibody (M1003-7) at 1/100,000 dilution was used for 1 hour at room temperature.
Lane 1: HeLa transfected with FLAG-tagged Histon H3.1 (N-terminal) cell lysate (input).
Lane 2: Rabbit IgG instead of HA722780 IP in HeLa transfected with FLAG-tagged Histon H3.1 (N-terminal) cell lysate.
Lane 3: HA722780 IP in HeLa transfected with FLAG-tagged Histon H3.1 (N-terminal) cell lysate.
Blocking/Dilution buffer: 5% NFDM/TBST
Exposure time: 17 seconds; ECL: K1801 -
Flow cytometric analysis of HeLa cells transfected with FLAG-tagged Otx1 (C-terminal) labeling DYKDDDDK Tag (FLAG).
Cells were fixed and permeabilized. Then stained with the primary antibody (HA722780, 1/1,000) (red) compared with Rabbit IgG Isotype Control (green). After incubation of the primary antibody at +4℃ for an hour, the cells were stained with a iFluor™ 488 conjugate-Goat anti-Rabbit IgG Secondary antibody (HA1121) at 1/1,000 dilution for 30 minutes at +4℃. Unlabelled sample was used as a control (cells without incubation with primary antibody; black). -
Flow cytometric analysis of HeLa cells transfected with FLAG-tagged Histon H3.1 (N-terminal) labeling DYKDDDDK Tag (FLAG).
Cells were fixed and permeabilized. Then stained with the primary antibody (HA722780, 1/1,000) (red) compared with Rabbit IgG Isotype Control (green). After incubation of the primary antibody at +4℃ for an hour, the cells were stained with a iFluor™ 488 conjugate-Goat anti-Rabbit IgG Secondary antibody (HA1121) at 1/1,000 dilution for 30 minutes at +4℃. Unlabelled sample was used as a control (cells without incubation with primary antibody; black). -
Chromatin immunoprecipitations were performed with cross-linked chromatin from 293T cells transfected with FLAG-tagged empty control (negative) / 293T cells transfected with FLAG-tagged Histone H3 (C-terminal) (positive) with DYKDDDDK Tag (FLAG) (HA722780) or Normal Rabbit IgG according to the ChIP protocol. The enriched DNA was quantified by real-time PCR using indicated primers. The amount of immunoprecipitated DNA in each sample is represented as signal relative to the total amount of input chromatin, which is equivalent to one.
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