Elizeu/sandbox/citocromo c

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=== PsaA protein ===
=== PsaA protein ===
PsaA (Pneumococcal surface antigen A) is a multi-functional lipoprotein detected on all known serotypes of ''Streptococcus pneumoniae''. This lipoprotein belongs to the ABC-type transport protein complex that transports Mn2+. ABC means ATP binding complex. PsaA is also an adhesion factor that plays a major role in pneumococcal attachment to the host cell and virulence. So, PsaA protein is involved in in colonization of the nasopharyngeal mucosal.
PsaA (Pneumococcal surface antigen A) is a multi-functional lipoprotein detected on all known serotypes of ''Streptococcus pneumoniae''. This lipoprotein belongs to the ABC-type transport protein complex that transports Mn2+. ABC means ATP binding complex. PsaA is also an adhesion factor that plays a major role in pneumococcal attachment to the host cell and virulence. So, PsaA protein is involved in in colonization of the nasopharyngeal mucosal.
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[[Image:opéron psa.png]]
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[[Image: opéron psa.png]]
=== ''Streptococcus pneumoniae''===
=== ''Streptococcus pneumoniae''===

Revision as of 14:45, 25 January 2017

User: Julie Langlois/Sandbox NCBI Accession: P42363.1 Uniprot Accesion: POA4G2 PDB ID: 3ZK7 Molecular weight: 34,538 kDa

Contents

Overview

PsaA protein

PsaA (Pneumococcal surface antigen A) is a multi-functional lipoprotein detected on all known serotypes of Streptococcus pneumoniae. This lipoprotein belongs to the ABC-type transport protein complex that transports Mn2+. ABC means ATP binding complex. PsaA is also an adhesion factor that plays a major role in pneumococcal attachment to the host cell and virulence. So, PsaA protein is involved in in colonization of the nasopharyngeal mucosal. Image:Opéron psa.png

Streptococcus pneumoniae

Image:PsaA dans ABC transporteur.jpg

Structure

PDB ID 3ZK7

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This is 3D structure of PsaA in the metal-free, open state.

PDB ID 3ZTT

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This is 3D structure of PsaA with manganese.

This is a test to add a in the Sandbox

Protein-protein interaction

Function

Disease

Meningitis

Otitis

Pneumonia

PsaA protein is an adhesin which is involved in colonization of the nasopharyngeal mucosal. Moreover, alveolar pneumonia is caused by the spread of Streptococcus pneumoniae from nasopharynx. Therefore PsaA protein is involved in infection of pulmonary parenchyma by Streptococcus pneumoniae. Sometimes, Streptococcus pneumoniae pass into the blood and causes a bacteremia besides pneumonia.

Application in Biotechnology

PsaA is being actively evaluated as a component of a vaccin in formulations composed of pneumococcal common proteins. PsaA has been expressed as an E.coli recombinant protein, purified, and evaluated in a phase one clinical trial.

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