CTBP1 Antibody - #DF6568

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Product: CTBP1 Antibody
Catalog: DF6568
Description: Rabbit polyclonal antibody to CTBP1
Application: WB IHC IF/ICC
Reactivity: Human, Mouse, Rat
Prediction: Pig, Bovine, Horse, Dog, Chicken, Xenopus
Mol.Wt.: 48kDa; 48kD(Calculated).
Uniprot: Q13363
RRID: AB_2838530

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Related Downloads
MSDS
Data Sheet
COA
Protocols
WB Handbook
IHC Protocol
IF/ICC Protocol

Product Info

Source:
Rabbit
Application:
WB 1:500-1:2000, IHC 1:50-1:200, IF/ICC 1:100-1:500
*The optimal dilutions should be determined by the end user.
*Tips:

WB: For western blot detection of denatured protein samples. IHC: For immunohistochemical detection of paraffin sections (IHC-p) or frozen sections (IHC-f) of tissue samples. IF/ICC: For immunofluorescence detection of cell samples. ELISA(peptide): For ELISA detection of antigenic peptide.

Reactivity:
Human,Mouse,Rat
Prediction:
Pig(100%), Bovine(100%), Horse(100%), Dog(100%), Chicken(100%), Xenopus(100%)
Clonality:
Polyclonal
Specificity:
CTBP1 Antibody detects endogenous levels of total CTBP1.
RRID:
AB_2838530
Cite Format: Affinity Biosciences Cat# DF6568, RRID:AB_2838530.
Conjugate:
Unconjugated.
Purification:
The antiserum was purified by peptide affinity chromatography using SulfoLink™ Coupling Resin (Thermo Fisher Scientific).
Storage:
Rabbit IgG in phosphate buffered saline , pH 7.4, 150mM NaCl, 0.02% sodium azide and 50% glycerol. Store at -20 °C. Stable for 12 months from date of receipt.
Alias:

Fold/Unfold

BARS; brefeldin A- ribosylated substrate; C terminal binding protein 1; C-terminal-binding protein 1; CTBP; CtBP1; CTBP1_HUMAN; MGC104684;

Immunogens

Immunogen:
Uniprot:

Q13363(CTBP1_HUMAN) >>Visit HPA database.

Gene(ID):
CTBP1(1487)
Expression:
Q13363 CTBP1_HUMAN:

Expressed in germinal center B-cells.

Description:
CtBP1 (C-terminal binding protein 1) was first recognized as a cellular factor that interacts with the C-terminal portion of adenovirus E1A, a protein involved in the transcriptional regulation of key cellular genes (1). CtBP1 is able to regulate gene activity through its intrinsic dehydrogenase activity (2,3) and by interacting with Polycomb Group (PcG) proteins during development (4). Along with its homologue, CtBP2, it acts as a transcriptional corepressor of zinc-finger homeodomain factor deltaEF1 to regulate a wide range of cellular processes through transrepression mechanisms (5). Through its direct interaction with PRDM16, CtBP1 has been shown to be involved in brown adipose tissue differentiation by mediating the repression of white fat genes and directing differentiation toward the brown fat gene program (6). CtBP1 also plays a role in lipid metabolic pathways and membrane fission by regulating the fission machinery operating Golgi tubular networks (7). CtBP1 has recently been shown to repress transcription of BRCA1 via a redox regulated mechanism (8). Furthermore, it is thought that downregulation of BRCA1 and E-cadherin in invasive ductal breast carcinoma correlates directly with activation of CtBP1 (9).
Sequence:
MGSSHLLNKGLPLGVRPPIMNGPLHPRPLVALLDGRDCTVEMPILKDVATVAFCDAQSTQEIHEKVLNEAVGALMYHTITLTREDLEKFKALRIIVRIGSGFDNIDIKSAGDLGIAVCNVPAASVEETADSTLCHILNLYRRATWLHQALREGTRVQSVEQIREVASGAARIRGETLGIIGLGRVGQAVALRAKAFGFNVLFYDPYLSDGVERALGLQRVSTLQDLLFHSDCVTLHCGLNEHNHHLINDFTVKQMRQGAFLVNTARGGLVDEKALAQALKEGRIRGAALDVHESEPFSFSQGPLKDAPNLICTPHAAWYSEQASIEMREEAAREIRRAITGRIPDSLKNCVNKDHLTAATHWASMDPAVVHPELNGAAYRYPPGVVGVAPTGIPAAVEGIVPSAMSLSHGLPPVAHPPHAPSPGQTVKPEADRDHASDQL

Predictions

Predictions:

Score>80(red) has high confidence and is suggested to be used for WB detection. *The prediction model is mainly based on the alignment of immunogen sequences, the results are for reference only, not as the basis of quality assurance.

Species
Results
Score
Pig
100
Horse
100
Bovine
100
Dog
100
Xenopus
100
Chicken
100
Sheep
0
Zebrafish
0
Rabbit
0
Model Confidence:
High(score>80) Medium(80>score>50) Low(score<50) No confidence

PTMs - Q13363 As Substrate

Site PTM Type Enzyme
K46 Ubiquitination
C54 S-Nitrosylation
Y76 Phosphorylation
K88 Ubiquitination
S100 Phosphorylation
T144 Phosphorylation
S158 Phosphorylation Q13153 (PAK1) , Q13131 (PRKAA1)
K194 Ubiquitination
R266 Methylation
K273 Ubiquitination
K280 Ubiquitination
R285 Methylation
S300 Phosphorylation
K348 Ubiquitination
C350 S-Nitrosylation
S422 Phosphorylation P45983 (MAPK8) , Q9H2X6 (HIPK2)
K428 Sumoylation

Research Backgrounds

Function:

Corepressor targeting diverse transcription regulators such as GLIS2 or BCL6. Has dehydrogenase activity. Involved in controlling the equilibrium between tubular and stacked structures in the Golgi complex. Functions in brown adipose tissue (BAT) differentiation.

PTMs:

The level of phosphorylation appears to be regulated during the cell cycle. Phosphorylation by HIPK2 on Ser-422 induces proteasomal degradation.

ADP-ribosylated; when cells are exposed to brefeldin A.

Sumoylation on Lys-428 is promoted by the E3 SUMO-protein ligase CBX4.

Subcellular Location:

Cytoplasm. Nucleus.

Extracellular region or secreted Cytosol Plasma membrane Cytoskeleton Lysosome Endosome Peroxisome ER Golgi apparatus Nucleus Mitochondrion Manual annotation Automatic computational assertionSubcellular location
Tissue Specificity:

Expressed in germinal center B-cells.

Subunit Structure:

Homo- or heterodimer. Heterodimer with CTBP2. Interacts with PRDM16; the interaction represses white adipose tissue (WAT)-specific genes expression. Interacts with GLIS2, FOXP2, HDAC4, HDAC5, HDAC9 and ZNF217. Interacts with ELK3 (via its PXDLS motif). Interacts with RBBP8 (via its PXDLS motif); the interaction is disrupted by binding to adenovirus E1A. Interacts with FOXP1, HIPK2, PNN, NRIP1, MECOM, ZFHX1B and WIZ. Interacts with ZNF366 (via PXDLS motif). Interaction with SATB1 (non-acetylated form); the interaction stabilizes its attachment to DNA and promotes transcription repression. Interacts with BCL6; the interaction is required for BCL6 transcriptional autoinhibition and inhibition of some BCL6 target genes. Interacts with IKZF4 (By similarity). Interacts with MCRIP1 (unphosphorylated form, via the PXDLS motif); competitively inhibiting CTBP-ZEB1 interaction. Interacts with Bassoon/BSN; this interaction targets and anchors CTBP1 to presynapses (By similarity).

(Microbial infection) Interacts with Epstein-Barr virus EBNA3 and EBNA6.

(Microbial infection) Interacts with adenovirus E1A protein (via its C-terminus); the interaction disrupts the interaction of CTBP1 with RBBP8.

(Microbial infection) Interacts with human adenovirus 5 E1A protein; this interaction seems to potentiate viral replication.

Family&Domains:

Belongs to the D-isomer specific 2-hydroxyacid dehydrogenase family.

Research Fields

· Environmental Information Processing > Signal transduction > Wnt signaling pathway.   (View pathway)

· Environmental Information Processing > Signal transduction > Notch signaling pathway.   (View pathway)

· Human Diseases > Cancers: Overview > Pathways in cancer.   (View pathway)

· Human Diseases > Cancers: Specific types > Chronic myeloid leukemia.   (View pathway)

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