Comparison

FOXO4-DRI vs Thymosin Beta-4

Function

While FOXO4-DRI acts as a senolytic in preclinical models by promoting apoptosis of senescent cells, improving tissue function and healthspan measures in aged animals38, Thymosin Beta-4 promotes wound healing, angiogenesis, and tissue regeneration in preclinical models via effects on cytoskeleton dynamics, cell migration, and anti-apoptotic pathways25579.

Mechanism

While FOXO4-DRI works as a D-retro-inverso peptide derived from a FOXO4 region that competes with endogenous FOXO4 for binding to p53, thereby releasing p53 to trigger apoptosis selectively in senescent cells38, Thymosin Beta-4 is an endogenous 43-amino-acid actin-sequestering peptide that maintains a pool of G-actin monomers and regulates actin polymerization, thereby influencing cell migration, proliferation, and differentiation25579.

Length and Sequence

FOXO4-DRI is amino acids long, whereas Thymosin Beta-4 is longer as it has a length of 43 amino acids. FOXO4-DRI is made up of a sequence of sequence data not available in the current dataset. Thymosin Beta-4 is made up of a sequence of Serine, Aspartic acid, Lysine, Proline, Aspartic acid, Methionine, Alanine, Glutamic acid, Isoleucine, Glutamic acid, Lysine, Phenylalanine, Aspartic acid, Lysine, Serine, Lysine, Lysine, Proline, Aspartic acid, Methionine, Alanine, Glutamic acid, Glutamic acid, Lysine, Phenylalanine, Aspartic acid, Lysine, Lysine, Glutamic acid, Lysine, Lysine, Glutamic acid, Glutamic acid, Alanine, Glutamic acid, Asparagine, Glutamic acid, Glutamic acid, Lysine, Glutamic acid, Serine.

Receptor

FOXO4-DRI

Intracellular target is the FOXO4–p53 protein–protein interaction interface; it does not signal via a traditional cell-surface receptor38

Thymosin Beta-4

Binds actin monomers (G-actin) at both barbed and pointed ends to sterically block polymerization55

Organism or Origin

FOXO4-DRI

Synthetic peptide based on human FOXO4 transcription factor3898

Thymosin Beta-4

Human and other mammals (ubiquitous cytosolic peptide) 7988

Gene

FOXO4-DRI

FOXO4

Thymosin Beta-4

TMSB4X

Sources

38FOXO4-DRI - Research Information - Peptpedia, https://peptpedia.org/peptide/foxo4-dri
98Human FOXO4 Synthetic Peptide (PEP-1088), https://www.thermofisher.com/proteins/product/Human-FOXO4-Synthetic-Peptide/PEP-1088
2TB-500 (Thymosin Beta-4) | Peptide Biologix, https://peptidebiologix.com/tb-500
12Thymosin Beta-4 vs TB-500 | What to Know in 2024, https://www.peptidesciences.com/peptide-research/thymosin-beta-4-vs-tb-500
79TMSB4X Gene: Function, Research, and Clinical Applications, https://learn.mapmygenome.in/genemap/tmsb4x
88TMSB4X thymosin beta 4, X-linked FX PTMB4 TB4X TMSB4, https://www.sigmaaldrich.com/DE/en/genes/tmsb4x