peptable

Comparison

FOXO4-DRI vs TB-500

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, TB-500 is studied for enhancing musculoskeletal and cardiac repair, wound healing, and promoting cell migration and differentiation via actin cytoskeleton remodeling21255.

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, TB-500 is a synthetic peptide comprising the LKKTETQ actin-binding motif of thymosin beta-4 that binds G-actin, sequesters actin monomers, and promotes cell migration, angiogenesis, and tissue repair1255.

Length and Sequence

FOXO4-DRI is amino acids long, whereas TB-500 is longer as it has a length of 7 amino acids. FOXO4-DRI is made up of a sequence of sequence data not available in the current dataset. TB-500 is made up of a sequence of Lysine, Lysine, Lysine, Threonine, Glutamic acid, Threonine, Glutamine.

Receptor

FOXO4-DRI

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

TB-500

Binds monomeric actin (G-actin) rather than a classical cell-surface receptor, modulating actin polymerization at barbed and pointed ends55

Organism or Origin

FOXO4-DRI

Synthetic peptide based on human FOXO4 transcription factor3898

TB-500

Synthetic derivative of human thymosin beta-4, whose full-length 43-amino-acid protein is abundant in mammalian tissues21279

Gene

FOXO4-DRI

FOXO4

TB-500

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