Hemolysin: Difference between revisions

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{{STRUCTURE_7ahl|  PDB=7ahl  | SIZE=400| SCENE= |right|CAPTION=α-hemolysin heptamer, [[7ahl]] }}
{{STRUCTURE_7ahl|  PDB=7ahl  | SIZE=400| SCENE= |right|CAPTION=α-hemolysin heptamer, [[7ahl]] }}


'''Hemolysin''' (HL) is exotoxin from bacteria which causes lysis of red blood cells.   
'''Hemolysin''' (HL) is exotoxin from bacteria which causes lysis of red blood cells. Hemolysin from the bacterium ''Clostridium'' are called '''alpha-toxin''' (AT).  AT is a zinc metalloenzyme and binds to the membrane in the presence of calcium. It acts as a phospholipase C.   


See details for α-hemolysin in [[Pore forming toxin, α-hemolysin]].   
See details for α-hemolysin in [[Pore forming toxin, α-hemolysin]].   
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**[[1mt0]] – EcHL B ATP-binding domain<br />
**[[1mt0]] – EcHL B ATP-binding domain<br />
**[[2oai]], [[2r8d]] – HL corc_hlyc domain – ''Xylella fastidiosa''<br />
**[[2oai]], [[2r8d]] – HL corc_hlyc domain – ''Xylella fastidiosa''<br />
**[[2r2z]] – HL residues 346-435 – ''Enterococcus faecalis''
**[[2r2z]] – HL residues 346-435 – ''Enterococcus faecalis''<br />
 
*Alpha-toxin
 
**[[2wxt]], [[1ca1]] - CpAT + Cd + Zn – ''Clostridium perfringens''<br />
**[[1qm6]], [[1gyg]], [[1kho]] - CpAT + Zn  <br />
**[[2wy6]], [[2wxu]] – CpAT (mutant) + Ca + Cd + Zn<br />
**[[1qmd]] - CpAT + Ca + Zn<br />
**[[1olp]] - AT + Ca + Zn – ''Clostridium absonum''<br />
**[[2vk9]] - AT – ''Clostridium novyi''<br />
}}
}}
[[Category:Topic Page]]
[[Category:Topic Page]]

Revision as of 14:36, 29 October 2015

Template:STRUCTURE 7ahl

Hemolysin (HL) is exotoxin from bacteria which causes lysis of red blood cells. Hemolysin from the bacterium Clostridium are called alpha-toxin (AT). AT is a zinc metalloenzyme and binds to the membrane in the presence of calcium. It acts as a phospholipase C.

See details for α-hemolysin in Pore forming toxin, α-hemolysin. See details of hemolysin E in Molecular Playground/ClyA.

For toxins in Proteopdia see Toxins.

3D Structures of hemolysin3D Structures of hemolysin

Updated on 29-October-2015

A full page in Proteopedia exploring 7ahl is found here.

  • β-hemolysin
    • 3k55 – SaHL-β)
    • 3i5v - SaHL-β residues 35-330)
    • 3i41 - SaHL-β residues 35-330 (mutant)
    • 3i46, 3i48 - SaHL-β residues 35-330 (mutant)
      + metal ion
  • γ-hemolysin
    • 2qk7 – SaHL-γ component A (mutant) +B (mutant)
    • 3b07 - SaHL-γ component A+B
    • 4p1x - SaHL-γ component B (mutant)+C
    • 4p1y - SaHL-γ component A + B (mutant)
  • δ-hemolysin
    • 2kam – SaHL-δ - NMR
  • Hemolysin
    • 3o44 – VcHL residues 161-741 – Vibrio cholerae
    • 1xez – VcHL (mutant)
    • 3a57 – HL 2 – Vibrio parahaemolyticus
    • 3hvn – HL (mutant) – Streptococcus suis
    • 3fy3 – HL A residues 30-265 – Proteus mirabilis
    • 2wcd – EcHL E residues 2-303 – Escherichia coli
    • 1qoy, 4pho, 4phq - EcHL E (mutant)
    • 1mt0 – EcHL B ATP-binding domain
    • 2oai, 2r8d – HL corc_hlyc domain – Xylella fastidiosa
    • 2r2z – HL residues 346-435 – Enterococcus faecalis
  • Alpha-toxin
    • 2wxt, 1ca1 - CpAT + Cd + Zn – Clostridium perfringens
    • 1qm6, 1gyg, 1kho - CpAT + Zn
    • 2wy6, 2wxu – CpAT (mutant) + Ca + Cd + Zn
    • 1qmd - CpAT + Ca + Zn
    • 1olp - AT + Ca + Zn – Clostridium absonum
    • 2vk9 - AT – Clostridium novyi

Proteopedia Page Contributors and Editors (what is this?)Proteopedia Page Contributors and Editors (what is this?)

Wayne Decatur, Alexander Berchansky, Michal Harel, Mark Hoelzer