Product: 14-3-3 sigma Antibody
Catalog: DF6189
Description: Rabbit polyclonal antibody to 14-3-3 sigma
Application: WB IHC
Reactivity: Human, Mouse, Rat
Prediction: Pig, Bovine, Horse, Sheep, Rabbit, Dog, Chicken
Mol.Wt.: 28kDa; 28kD(Calculated).
Uniprot: P31947
RRID: AB_2838155

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Product Info

Source:
Rabbit
Application:
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%), Rabbit(100%), Dog(100%), Chicken(88%)
Clonality:
Polyclonal
Specificity:
14-3-3 sigma Antibody detects endogenous levels of total 14-3-3 sigma.
RRID:
AB_2838155
Cite Format: Affinity Biosciences Cat# DF6189, RRID:AB_2838155.
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

14 3 3 protein sigma; 14-3-3 protein sigma; 1433S_HUMAN; Epithelial cell marker protein 1; Er; HME 1; HME1; MGC143283; Mkrn3; Mme1; OTTHUMP00000004242; RP23 137L22.11; SFN; SFN protein; Stratifin; YWHAS;

Immunogens

Immunogen:
Uniprot:
Gene(ID):
Expression:
P31947 1433S_HUMAN:

Present mainly in tissues enriched in stratified squamous keratinizing epithelium.

Description:
14-3-3 proteins regulate many cellular processes relevant to cancer biology, notably apoptosis, mitogenic signaling and cell-cycle checkpoints. Seven isoforms, denoted 14-3-3 b, g, e, z, h, q and s, comprise this family of signaling intermediates. 14-3-3 s, also known as SFN, stratifin, HME1 or YWHAS, is a secreted adaptor protein that is involved in regulating both general and specific signaling pathways. Expressed predominately in stratified squamous keratinising epithelium, 14-3-3 s is able to bind and modify the activity of a large number of proteins, such as KRT17 (Keratin 17), through recognition of a phosphothreonine or phosphoserine motif. When bound to Keratin 17, for example, 14-3-3 s acts to stimulate the Akt/mTOR signaling pathway by upregulating protein synthesis and cell growth. 14-3-3 s also functions to positively mediate IGF-I-induced cell cycle progression and can bind to a variety of translation initiation factors, thus controlling mitotic translation. In response to tumor growth, 14-3-3 s positively regulates the tumor suppressor p53 and increases the rate of p53-regulated inhibition of G2/M cell cycle progression. Multiple isoforms of 14-3-3 s exist due to alternative splicing events.
Sequence:
MERASLIQKAKLAEQAERYEDMAAFMKGAVEKGEELSCEERNLLSVAYKNVVGGQRAAWRVLSSIEQKSNEEGSEEKGPEVREYREKVETELQGVCDTVLGLLDSHLIKEAGDAESRVFYLKMKGDYYRYLAEVATGDDKKRIIDSARSAYQEAMDISKKEMPPTNPIRLGLALNFSVFHYEIANSPEEAISLAKTTFDEAMADLHTLSEDSYKDSTLIMQLLRDNLTLWTADNAGEEGGEAPQEPQS

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
Rabbit
100
Chicken
88
Xenopus
0
Zebrafish
0
Model Confidence:
High(score>80) Medium(80>score>50) Low(score<50) No confidence

PTMs - P31947 As Substrate

Site PTM Type Enzyme
S5 Phosphorylation
K9 Ubiquitination
K11 Acetylation
K11 Ubiquitination
Y19 Phosphorylation
K32 Acetylation
K32 Ubiquitination
C38 S-Nitrosylation
S45 Phosphorylation
Y48 Phosphorylation
K49 Acetylation
K49 Ubiquitination
S63 Phosphorylation
S64 Phosphorylation
K68 Ubiquitination
S69 Phosphorylation
S74 Phosphorylation
K77 Ubiquitination
K87 Ubiquitination
K109 Ubiquitination
S116 Phosphorylation
K122 Acetylation
K122 Ubiquitination
K124 Ubiquitination
Y127 Phosphorylation
Y128 Phosphorylation
T136 Phosphorylation
K140 Ubiquitination
K141 Acetylation
S146 Phosphorylation
S149 Phosphorylation
Y151 Phosphorylation
K159 Acetylation
K160 Ubiquitination
S186 Phosphorylation P53779 (MAPK10) , P45983 (MAPK8) , P45984 (MAPK9)
T207 Phosphorylation
S209 Phosphorylation
S216 Phosphorylation
T217 Phosphorylation
S248 Phosphorylation

Research Backgrounds

Function:

Adapter protein implicated in the regulation of a large spectrum of both general and specialized signaling pathways. Binds to a large number of partners, usually by recognition of a phosphoserine or phosphothreonine motif. Binding generally results in the modulation of the activity of the binding partner. When bound to KRT17, regulates protein synthesis and epithelial cell growth by stimulating Akt/mTOR pathway. May also regulate MDM2 autoubiquitination and degradation and thereby activate p53/TP53.

p53-regulated inhibitor of G2/M progression.

PTMs:

Ubiquitinated. Ubiquitination by RFFL induces proteasomal degradation and indirectly regulates p53/TP53 activation.

Subcellular Location:

Cytoplasm. Nucleus. Secreted.
Note: May be secreted by a non-classical secretory pathway.

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

Present mainly in tissues enriched in stratified squamous keratinizing epithelium.

Subunit Structure:

Homodimer. Interacts with KRT17 and SAMSN1 (By similarity). Found in a complex with XPO7, EIF4A1, ARHGAP1, VPS26A, VPS29 and VPS35. Interacts with GAB2. Interacts with SRPK2. Interacts with COPS6. Interacts with COP1; this interaction leads to proteasomal degradation. Interacts with the 'Thr-369' phosphorylated form of DAPK2. Interacts with PI4KB. Interacts with SLITRK1. Interacts with LRRK2; this interaction is dependent on LRRK2 phosphorylation.

Family&Domains:

Belongs to the 14-3-3 family.

Research Fields

· Cellular Processes > Cell growth and death > Cell cycle.   (View pathway)

· Cellular Processes > Cell growth and death > p53 signaling pathway.   (View pathway)

· Organismal Systems > Excretory system > Aldosterone-regulated sodium reabsorption.

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