Hmdb loader
Identification
HMDB Protein ID HMDBP14570
Secondary Accession Numbers None
Name Pneumolysin
Synonyms
  1. PLY
  2. Thiol-activated cytolysin
Gene Name PLY
Protein Type Unknown
Biological Properties
General Function Not Available
Specific Function A cholesterol-dependent toxin that causes cytolysis by forming pores in cholesterol containing host membranes (Probable). After binding to target membranes, the protein undergoes a major conformation change, leading to its insertion in the host membrane and formation of an oligomeric pore complex. Cholesterol is required for binding to host membranes, membrane insertion and pore formation; cholesterol binding is mediated by a Thr-Leu pair in the C-terminus. Can be reversibly inactivated by oxidation.
Pathways
  • Quorum sensing
Reactions Not Available
GO Classification
Biological Process
pathogenesis
hemolysis in other organism
Cellular Component
integral to membrane
extracellular region
cell wall
host cell plasma membrane
Molecular Function
cholesterol binding
toxin activity
Cellular Location Not Available
Gene Properties
Chromosome Location Not Available
Locus Not Available
SNPs Not Available
Gene Sequence Not Available
Protein Properties
Number of Residues 471
Molecular Weight 52898.05
Theoretical pI 5.352
Pfam Domain Function
Signals Not Available
Transmembrane Regions
  • 158-171;178-187;256-265;273-285;
Protein Sequence Not Available
GenBank ID Protein Not Available
UniProtKB/Swiss-Prot ID P0C2J9
UniProtKB/Swiss-Prot Entry Name TACY_STRPN
PDB IDs Not Available
GenBank Gene ID Not Available
GeneCard ID Not Available
GenAtlas ID Not Available
HGNC ID Not Available
References
General References
  1. Tettelin H, Nelson KE, Paulsen IT, Eisen JA, Read TD, Peterson S, Heidelberg J, DeBoy RT, Haft DH, Dodson RJ, Durkin AS, Gwinn M, Kolonay JF, Nelson WC, Peterson JD, Umayam LA, White O, Salzberg SL, Lewis MR, Radune D, Holtzapple E, Khouri H, Wolf AM, Utterback TR, Hansen CL, McDonald LA, Feldblyum TV, Angiuoli S, Dickinson T, Hickey EK, Holt IE, Loftus BJ, Yang F, Smith HO, Venter JC, Dougherty BA, Morrison DA, Hollingshead SK, Fraser CM: Complete genome sequence of a virulent isolate of Streptococcus pneumoniae. Science. 2001 Jul 20;293(5529):498-506. doi: 10.1126/science.1061217. [PubMed:11463916 ]
  2. Bandara M, Skehel JM, Kadioglu A, Collinson I, Nobbs AH, Blocker AJ, Jenkinson HF: The accessory Sec system (SecY2A2) in Streptococcus pneumoniae is involved in export of pneumolysin toxin, adhesion and biofilm formation. Microbes Infect. 2017 Jul - Aug;19(7-8):402-412. doi: 10.1016/j.micinf.2017.04.003. Epub 2017 Apr 27. [PubMed:28456649 ]