The world's largest known protein is Titin, also called connectin.
Understanding Titin
Titin is a massive protein found in the striated muscle tissue of humans and other vertebrates. Similar proteins are also found in invertebrate animal families. Here’s a closer look:
- Size: A single human titin molecule is over 1 µm long.
- Structure: It is made up of approximately 244 folded protein domains.
- Quantity: An adult human body contains roughly 500 grams of titin.
- Function: Titin plays a crucial role in muscle structure and elasticity.
Titin: Key Facts
| Feature | Description |
|---|---|
| Name | Titin (also called connectin) |
| Location | Striated muscle tissue (humans and other vertebrates), homologous proteins in invertebrates |
| Size | >1 µm in length |
| Composition | Approximately 244 folded protein domains |
| Abundance | ~500 g in an adult human body |
