Product: Phospho-SREBP1 (Ser338) Antibody
Catalog: AF7299
Description: Rabbit polyclonal antibody to Phospho-SREBP1 (Ser338)
Application: WB IHC IF/ICC
Reactivity: Human, Mouse, Rat
Prediction: Pig, Bovine, Horse, Sheep, Dog, Chicken, Xenopus
Mol.Wt.: 122kDa; 122kD(Calculated).
Uniprot: P36956
RRID: AB_2843739

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 100ul $350 In stock
 200ul $450 In stock

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Product Info

Source:
Rabbit
Application:
IF/ICC 1:100-1:500, WB 1:500-1:2000, IHC 1:50-1:200
*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%), Sheep(100%), Dog(100%), Chicken(100%), Xenopus(89%)
Clonality:
Polyclonal
Specificity:
Phospho-SREBP1 (Ser338) Antibody detects endogenous levels of SREBP1 only when phosphorylated at Ser338.
RRID:
AB_2843739
Cite Format: Affinity Biosciences Cat# AF7299, RRID:AB_2843739.
Conjugate:
Unconjugated.
Purification:
The antibody is from purified rabbit serum by affinity purification via sequential chromatography on phospho-peptide and non-phospho-peptide affinity columns.
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

ADD 1; bHLHd1; Class D basic helix-loop-helix protein 1; D630008H06; Processed sterol regulatory element-binding protein 1; SRBP1_HUMAN; SREBF 1; SREBF1; SREBP 1; SREBP 1c; SREBP-1; SREBP1; Sterol regulatory element binding protein 1; Sterol Regulatory Element Binding Transcription Factor 1 / Protein 1; Sterol regulatory element binding transcription factor 1; Sterol regulatory element-binding transcription factor 1;

Immunogens

Immunogen:
Uniprot:
Gene(ID):
Expression:
P36956 SRBP1_HUMAN:

Expressed in a wide variety of tissues, most abundant in liver and adrenal gland. In fetal tissues lung and liver shows highest expression. Isoform SREBP-1C predominates in liver, adrenal gland and ovary, whereas isoform SREBP-1A predominates in hepatoma cell lines. Isoform SREBP-1A and isoform SREBP-1C are found in kidney, brain, white fat, and muscle.

Sequence:
MDEPPFSEAALEQALGEPCDLDAALLTDIEDMLQLINNQDSDFPGLFDPPYAGSGAGGTDPASPDTSSPGSLSPPPATLSSSLEAFLSGPQAAPSPLSPPQPAPTPLKMYPSMPAFSPGPGIKEESVPLSILQTPTPQPLPGALLPQSFPAPAPPQFSSTPVLGYPSPPGGFSTGSPPGNTQQPLPGLPLASPPGVPPVSLHTQVQSVVPQQLLTVTAAPTAAPVTTTVTSQIQQVPVLLQPHFIKADSLLLTAMKTDGATVKAAGLSPLVSGTTVQTGPLPTLVSGGTILATVPLVVDAEKLPINRLAAGSKAPASAQSRGEKRTAHNAIEKRYRSSINDKIIELKDLVVGTEAKLNKSAVLRKAIDYIRFLQHSNQKLKQENLSLRTAVHKSKSLKDLVSACGSGGNTDVLMEGVKTEVEDTLTPPPSDAGSPFQSSPLSLGSRGSGSGGSGSDSEPDSPVFEDSKAKPEQRPSLHSRGMLDRSRLALCTLVFLCLSCNPLASLLGARGLPSPSDTTSVYHSPGRNVLGTESRDGPGWAQWLLPPVVWLLNGLLVLVSLVLLFVYGEPVTRPHSGPAVYFWRHRKQADLDLARGDFAQAAQQLWLALRALGRPLPTSHLDLACSLLWNLIRHLLQRLWVGRWLAGRAGGLQQDCALRVDASASARDAALVYHKLHQLHTMGKHTGGHLTATNLALSALNLAECAGDAVSVATLAEIYVAAALRVKTSLPRALHFLTRFFLSSARQACLAQSGSVPPAMQWLCHPVGHRFFVDGDWSVLSTPWESLYSLAGNPVDPLAQVTQLFREHLLERALNCVTQPNPSPGSADGDKEFSDALGYLQLLNSCSDAAGAPAYSFSISSSMATTTGVDPVAKWWASLTAVVIHWLRRDEEAAERLCPLVEHLPRVLQESERPLPRAALHSFKAARALLGCAKAESGPASLTICEKASGYLQDSLATTPASSSIDKAVQLFLCDLLLVVRTSLWRQQQPPAPAPAAQGTSSRPQASALELRGFQRDLSSLRRLAQSFRPAMRRVFLHEATARLMAGASPTRTHQLLDRSLRRRAGPGGKGGAVAELEPRPTRREHAEALLLASCYLPPGFLSAPGQRVGMLAEAARTLEKLGDRRLLHDCQQMLMRLGGGTTVTSS

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
Sheep
100
Dog
100
Chicken
100
Xenopus
89
Zebrafish
0
Rabbit
0
Model Confidence:
High(score>80) Medium(80>score>50) Low(score<50) No confidence

PTMs - P36956 As Substrate

Site PTM Type Enzyme
T59 Phosphorylation
S63 Phosphorylation Q16539 (MAPK14)
S117 Phosphorylation P27361 (MAPK3) , P28482 (MAPK1) , P45983 (MAPK8)
K123 Sumoylation
K256 Ubiquitination
T275 Phosphorylation
S312 Phosphorylation
K313 Ubiquitination
R321 Methylation
K324 Acetylation
K324 Ubiquitination
K333 Acetylation
S337 Phosphorylation P57059 (SIK1)
S338 Phosphorylation P57059 (SIK1) , P17612 (PRKACA)
K342 Ubiquitination
K347 Ubiquitination
K356 Ubiquitination
K359 Ubiquitination
S360 Phosphorylation
K365 Ubiquitination
K379 Ubiquitination
K381 Ubiquitination
S396 Phosphorylation P54646 (PRKAA2)
K398 Ubiquitination
S402 Phosphorylation P57059 (SIK1)
K418 Sumoylation
T424 Phosphorylation
T426 Phosphorylation P49841 (GSK3B) , Q16539 (MAPK14)
S430 Phosphorylation P49841 (GSK3B)
S434 Phosphorylation P49841 (GSK3B)
S439 Phosphorylation P06493 (CDK1)
S448 Phosphorylation
S450 Phosphorylation
S455 Phosphorylation
S457 Phosphorylation
S467 Phosphorylation P53350 (PLK1)
K470 Ubiquitination
S486 Phosphorylation
Y567 Phosphorylation
K587 Ubiquitination
K675 Ubiquitination
K727 Ubiquitination
K924 Methylation
K924 Ubiquitination
K934 Ubiquitination
K947 Ubiquitination
S1020 Phosphorylation
S1027 Phosphorylation
S1049 Phosphorylation
S1060 Phosphorylation
K1070 Ubiquitination
K1121 Ubiquitination

Research Backgrounds

Function:

Transcriptional activator required for lipid homeostasis. Regulates transcription of the LDL receptor gene as well as the fatty acid and to a lesser degree the cholesterol synthesis pathway (By similarity). Binds to the sterol regulatory element 1 (SRE-1) (5'-ATCACCCCAC-3'). Has dual sequence specificity binding to both an E-box motif (5'-ATCACGTGA-3') and to SRE-1 (5'-ATCACCCCAC-3').

PTMs:

At low cholesterol the SCAP/SREBP complex is recruited into COPII vesicles for export from the ER. In the Golgi complex SREBPs are cleaved sequentially by site-1 and site-2 protease. The first cleavage by site-1 protease occurs within the luminal loop, the second cleavage by site-2 protease occurs within the first transmembrane domain and releases the transcription factor from the Golgi membrane. Apoptosis triggers cleavage by the cysteine proteases caspase-3 and caspase-7.

Phosphorylated by AMPK, leading to suppress protein processing and nuclear translocation, and repress target gene expression. Phosphorylation at Ser-402 by SIK1 represses activity possibly by inhibiting DNA-binding (By similarity).

Subcellular Location:

Endoplasmic reticulum membrane>Multi-pass membrane protein. Golgi apparatus membrane>Multi-pass membrane protein. Cytoplasmic vesicle>COPII-coated vesicle membrane>Multi-pass membrane protein.
Note: Moves from the endoplasmic reticulum to the Golgi in the absence of sterols.

Nucleus.

Nucleus.

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 a wide variety of tissues, most abundant in liver and adrenal gland. In fetal tissues lung and liver shows highest expression. Isoform SREBP-1C predominates in liver, adrenal gland and ovary, whereas isoform SREBP-1A predominates in hepatoma cell lines. Isoform SREBP-1A and isoform SREBP-1C are found in kidney, brain, white fat, and muscle.

Subunit Structure:

Forms a tight complex with SCAP in the ER membrane. Efficient DNA binding of the soluble transcription factor fragment requires dimerization with another bHLH protein. Interacts with LMNA. Interacts with CEBPA, the interaction produces a transcriptional synergy (By similarity).

Family&Domains:

The 9aaTAD motif is a transactivation domain present in a large number of yeast and animal transcription factors.

Belongs to the SREBP family.

Research Fields

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

· Human Diseases > Endocrine and metabolic diseases > Insulin resistance.

· Human Diseases > Endocrine and metabolic diseases > Non-alcoholic fatty liver disease (NAFLD).

· Organismal Systems > Endocrine system > Insulin signaling pathway.   (View pathway)

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