相关实验视频

Updated: Jan 12, 2026

Microdissection of Black Widow Spider Silk-producing Glands
09:47

Microdissection of Black Widow Spider Silk-producing Glands

Published on: January 11, 2011

16.3K

三角编织蜘蛛使用一组新型的基因来构建弹加载的网络,用于特别富含proline的丝

Steven Casey1, Sandra M Correa-Garhwal2,3, Richard H Baker2

  • 1Department of Biological Sciences, University of Massachusetts Lowell, 198 Riverside Street, Lowell, MA 01854, USA.

PNAS nexus
|November 7, 2025
PubMed
概括

蜘蛛使用独特的,富含proline的丝用于特殊的功能. 三角形编织蜘蛛是什么意思

关键词:
在拖线上拖线上拖线.基因家族 进化 基因家族 进化普罗林是什么意思 普罗林是什么意思蜘蛛丝是一种蜘蛛丝.在这种情况下,spidroin

更多相关视频

Synthetic Spider Silk Production on a Laboratory Scale13:36

Synthetic Spider Silk Production on a Laboratory Scale

Published on: July 18, 2012

27.4K
Material Formation of Recombinant Spider Silks through Aqueous Solvation using Heat and Pressure10:26

Material Formation of Recombinant Spider Silks through Aqueous Solvation using Heat and Pressure

Published on: May 6, 2019

5.7K

相关概念视频

Generation of Straight or Branched Actin Filaments01:14

Generation of Straight or Branched Actin Filaments

The straight or branched structure formation of actin filaments is controlled by nucleating proteins such as the formins and Arp2/3 complex. Formin-mediated assembly results in straight filaments, whereas Arp2/3 protein complex-mediated assembly results in branched actin filaments.
Arp2/3 Complex
Arp2/3 complex is a seven-subunit complex consisting of two proteins similar to actin- Arp2 and Arp3, and five other subunits that help keep Arp2 and Arp3 inactive. When required, the complex is...
3.7K
Fibrous Proteins00:55

Fibrous Proteins

Fibrous proteins are either long and narrow proteins or assemble to form long and thin structures. They contain repetitive units and usually consist of either alpha helices or beta sheets and, in rare cases, a mix of both. The amino acids in the primary structure often consist of repeating amino acid sequences. The role of fibrous proteins is primarily structural. Many are located in the extracellular matrix and are present in connective tissues to impart strength and joint mobility. They are...
4.1K
Globular and Fibrous Proteins02:21

Globular and Fibrous Proteins

Many proteins can be classified into two distinct subtypes - globular or fibrous. These two types differ in their shapes and solubilities.
Globular proteins are also known as spheroproteins and typically are approximately round in shape. They contain a mix of amino acid types and contain differing sequences in their primary structures. Globular proteins have many different functions, such as enzymes, cellular messengers, and molecular transporters. These roles often require the proteins to be...
46.7K
Mechanism of Filopodia Formation01:39

Mechanism of Filopodia Formation

Filopodia are thin, actin-rich cellular protrusions that play an important role in many fundamental cellular functions. They vary in their occurrence, length, and positioning in different cell types, suggesting their diverse roles.
Their main function is to guide migrating cells during normal tissue morphogenesis or cancer metastasis by recognizing and making initial contacts with the extracellular matrix. However, they can also act as stationary cell anchors or help to establish communication...
3.0K
Formation of Higher-order Actin Filaments01:11

Formation of Higher-order Actin Filaments

The polymerization of G-actin monomers into filamentous F-actin is a multi-step process. Once the F-actins are formed, they can bundle together in different arrangements to form higher-order networks and regulate cellular functions. Common examples include the formation of lamellipodia and filopodia at the cell's leading edge by actin reorganization in a migrating cell. The microvilli on the brush border epithelial cells are also formed through the F-actin network.
The high-order actin...
3.5K
The Structure of Intermediate Filaments01:19

The Structure of Intermediate Filaments

The intermediate filaments are one of three widely studied cytoskeletal filaments. They are so named as their diameter (10 nm) is in between that of microfilaments (7 nm) and the microtubules (25 nm).  These filaments are highly stable and can remain intact when exposed to high salt concentrations and detergents. These filaments are responsible for providing stability and mechanical support to the cells. They also help in cell adhesion and maintaining tissue integrity.
Intermediate...
5.5K