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Globular and Fibrous Proteins

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...

Globular and Fibrous Proteins

Globular and Fibrous Proteins

No description available

Fibrous Proteins

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...

Structural Joints: Fibrous Joints

Structural Joints: Fibrous Joints

Fibrous joints are a type of joint where the bones are connected by fibrous connective tissue. These joints provide stability and minimal to no movement between the articulating bones. There are three types of fibrous joints.
Suture
All the bones of the skull, except for the mandible, are joined to each other by a fibrous joint called a suture. The fibrous connective tissue found at a suture strongly unites the adjacent skull bones and thus helps to protect the brain and form the face. In...

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Related Experiment Video

Updated: Jan 23, 2026

Author Spotlight: A Novel 3D-Printed Titanium Implant for Minimally Invasive Treatment of Hip Dysplasia in Young Dogs

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Published on: April 19, 2024

Fibrous dysplasia.

Nicole D Riddle¹, Marilyn M Bui

¹Department of Pathology and Laboratory Medicine, Pennsylvania Hospital, Philadelphia, PA 19107, USA. nriddlemd@gmail.com

Archives of Pathology & Laboratory Medicine

|January 2, 2013

Summary

This summary is machine-generated.

Fibrous dysplasia is a rare bone disorder involving the G-protein receptor alpha subunit gene. Current treatments focus on symptom management, with no cure for disease progression or malignant transformation.

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Area of Science:

Bone Diseases
Genetics
Molecular Pathology

Background:

Fibrous dysplasia is an uncommon skeletal disorder.
Diagnosis typically relies on clinical presentation, imaging, and histopathology.
The genetic basis involves the G-protein receptor alpha subunit gene.

Purpose of the Study:

To review the understanding of fibrous dysplasia pathogenesis.
To outline current diagnostic and treatment strategies.
To discuss the implications of molecular pathology advancements.

Main Methods:

Review of clinical symptoms and diagnostic criteria.
Analysis of radiological and histological findings.
Examination of molecular pathology and genetic associations.

Main Results:

Fibrous dysplasia diagnosis is generally straightforward.
The G-protein receptor alpha subunit gene is implicated.
Molecular pathology provides insights into disease mechanisms.

Conclusions:

Treatment is limited to supportive care, focusing on bone density and fracture management.
Malignant transformation is a rare complication.
No current therapies exist to halt disease progression or prevent malignant changes.