Cannabaceae

Cerato-platanin
Identifiers
SymbolCerato-platanin
PfamPF07249
Pfam clanCL0199
InterProIPR010829
Available protein structures:
Pfam  structures / ECOD  
PDBRCSB PDB; PDBe; PDBj
PDBsumstructure summary

In molecular biology, the cerato-platanin family of proteins includes the phytotoxin cerato-platanin (CP) produced by the Ascomycete Ceratocystis platani. CP homologs are also found in both the Ascomycota and the Basidiomycota branches of Dikarya.[1] This toxin causes the severe plant disease: canker stain. This protein occurs in the cell wall of the fungus and is involved in the host-pathogen interaction and induces both cell necrosis and phytoalexin synthesis which is one of the first plant defense-related events. CP, like other fungal surface proteins, is able to self-assemble in vitro.[2] CP is a 120 amino acid protein, containing 40% hydrophobic residues. It is one of the rare examples of protein in which contains a Hopf link.[3] The link is formed by covalent loops - the pieces of protein backbone closed by two disulphide bonds[4] (formed out of four cysteine residues). The N-terminal region of CP is very similar to cerato-ulmin, a phytotoxic protein produced by the Ophiostoma species belonging to the hydrophobin family, which also self-assembles.[5]

References

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  1. ^ Chen, Hongxin; Kovalchuk, Andriy; Keriö, Susanna; Asiegbu, Fred O. (20 January 2017). "Distribution and bioinformatic analysis of the cerato-platanin protein family in Dikarya". Mycologia. 105 (2013): 1479–1488. doi:10.3852/13-115. PMID 23928425. S2CID 23984426.
  2. ^ Sbrana F, Bongini L, Cappugi G, Fanelli D, Guarino A, Pazzagli L, Scala A, Vassalli M, Zoppi C, Tiribilli B (September 2007). "Atomic force microscopy images suggest aggregation mechanism in cerato-platanin" (PDF). Eur. Biophys. J. 36 (7): 727–32. doi:10.1007/s00249-007-0159-x. PMID 17431609. S2CID 11585837.
  3. ^ Dabrowski-Tumanski, Pawel; Sulkowska, Joanna I. (2017-03-28). "Topological knots and links in proteins". Proceedings of the National Academy of Sciences. 114 (13): 3415–3420. Bibcode:2017PNAS..114.3415D. doi:10.1073/pnas.1615862114. ISSN 0027-8424. PMC 5380043. PMID 28280100.
  4. ^ Pazzagli L, Cappugi G, Manao G, Camici G, Santini A, Scala A (August 1999). "Purification, characterization, and amino acid sequence of cerato-platanin, a new phytotoxic protein from Ceratocystis fimbriata f. sp. platani". J. Biol. Chem. 274 (35): 24959–64. doi:10.1074/jbc.274.35.24959. PMID 10455173.
  5. ^ Carresi L, Pantera B, Zoppi C, Cappugi G, Oliveira AL, Pertinhez TA, Spisni A, Scala A, Pazzagli L (October 2006). "Cerato-platanin, a phytotoxic protein from Ceratocystis fimbriata: expression in Pichia pastoris, purification and characterization". Protein Expr. Purif. 49 (2): 159–67. doi:10.1016/j.pep.2006.07.006. PMID 16931046.
This article incorporates text from the public domain Pfam and InterPro: IPR010829

One thought on “Cannabaceae

  1. Well, that’s interesting to know that Psilotum nudum are known as whisk ferns. Psilotum nudum is the commoner species of the two. While the P. flaccidum is a rare species and is found in the tropical islands. Both the species are usually epiphytic in habit and grow upon tree ferns. These species may also be terrestrial and grow in humus or in the crevices of the rocks.
    View the detailed Guide of Psilotum nudum: Detailed Study Of Psilotum Nudum (Whisk Fern), Classification, Anatomy, Reproduction

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