[English] 日本語
Yorodumi Papers
- Database of articles cited by EMDB/PDB/SASBDB data -

+
Search query

Keywords
Structure methods
Author
Journal
IF

-
Structure paper

TitleStructure and mechanism of bactericidal mammalian perforin-2, an ancient agent of innate immunity.
Journal, issue, pagesSci Adv, Vol. 6, Issue 5, Page eaax8286, Year 2020
Publish dateJan 29, 2020
AuthorsTao Ni / Fang Jiao / Xiulian Yu / Saša Aden / Lucy Ginger / Sophie I Williams / Fangfang Bai / Vojtěch Pražák / Dimple Karia / Phillip Stansfeld / Peijun Zhang / George Munson / Gregor Anderluh / Simon Scheuring / Robert J C Gilbert /
PubMed AbstractPerforin-2 (MPEG1) is thought to enable the killing of invading microbes engulfed by macrophages and other phagocytes, forming pores in their membranes. Loss of perforin-2 renders individual ...Perforin-2 (MPEG1) is thought to enable the killing of invading microbes engulfed by macrophages and other phagocytes, forming pores in their membranes. Loss of perforin-2 renders individual phagocytes and whole organisms significantly more susceptible to bacterial pathogens. Here, we reveal the mechanism of perforin-2 activation and activity using atomic structures of pre-pore and pore assemblies, high-speed atomic force microscopy, and functional assays. Perforin-2 forms a pre-pore assembly in which its pore-forming domain points in the opposite direction to its membrane-targeting domain. Acidification then triggers pore formation, via a 180° conformational change. This novel and unexpected mechanism prevents premature bactericidal attack and may have played a key role in the evolution of all perforin family proteins.
External linksSci Adv / PubMed:32064340 / PubMed Central
MethodsEM (single particle) / X-ray diffraction
Resolution2.05 - 5.0 Å
Structure data

10134

6sb3

EMDB-10134, PDB-6sb3:
CryoEM structure of murine perforin-2 ectodomain in a pre-pore form
Method: EM (single particle) / Resolution: 3.5 Å

10135

6sb5

EMDB-10135, PDB-6sb5:
CryoEM structure of murine perforin-2 ectodomain in a pore form
Method: EM (single particle) / Resolution: 5.0 Å

PDB-6sb1:
Crystal structure of murine perforin-2 P2 domain crystal form 1
Method: X-RAY DIFFRACTION / Resolution: 2.05 Å

PDB-6sb4:
Crystal structure of murine perforin-2 P2 domain crystal form 2
Method: X-RAY DIFFRACTION / Resolution: 3.17 Å

Chemicals

ChemComp-GOL:
GLYCEROL

ChemComp-CL:
Unknown entry

ChemComp-HOH:
WATER

ChemComp-NAG:
2-acetamido-2-deoxy-beta-D-glucopyranose

Source
  • mus musculus (house mouse)
KeywordsTOXIN / Pore-forming protein / perforin / MACPF / pre-pore / P2 domain / membrane binding / beta-hairpin

+
About Yorodumi Papers

-
News

-
Feb 9, 2022. New format data for meta-information of EMDB entries

New format data for meta-information of EMDB entries

  • Version 3 of the EMDB header file is now the official format.
  • The previous official version 1.9 will be removed from the archive.

Related info.:EMDB header

External links:wwPDB to switch to version 3 of the EMDB data model

-
Aug 12, 2020. Covid-19 info

Covid-19 info

URL: https://pdbj.org/emnavi/covid19.php

New page: Covid-19 featured information page in EM Navigator.

Related info.:Covid-19 info / Mar 5, 2020. Novel coronavirus structure data

+
Mar 5, 2020. Novel coronavirus structure data

Novel coronavirus structure data

Related info.:Yorodumi Speices / Aug 12, 2020. Covid-19 info

External links:COVID-19 featured content - PDBj / Molecule of the Month (242)：Coronavirus Proteases

+
Jan 31, 2019. EMDB accession codes are about to change! (news from PDBe EMDB page)

EMDB accession codes are about to change! (news from PDBe EMDB page)

  • The allocation of 4 digits for EMDB accession codes will soon come to an end. Whilst these codes will remain in use, new EMDB accession codes will include an additional digit and will expand incrementally as the available range of codes is exhausted. The current 4-digit format prefixed with “EMD-” (i.e. EMD-XXXX) will advance to a 5-digit format (i.e. EMD-XXXXX), and so on. It is currently estimated that the 4-digit codes will be depleted around Spring 2019, at which point the 5-digit format will come into force.
  • The EM Navigator/Yorodumi systems omit the EMD- prefix.

Related info.:Q: What is EMD? / ID/Accession-code notation in Yorodumi/EM Navigator

External links:EMDB Accession Codes are Changing Soon! / Contact to PDBj

+
Jul 12, 2017. Major update of PDB

Major update of PDB

  • wwPDB released updated PDB data conforming to the new PDBx/mmCIF dictionary.
  • This is a major update changing the version number from 4 to 5, and with Remediation, in which all the entries are updated.
  • In this update, many items about electron microscopy experimental information are reorganized (e.g. em_software).
  • Now, EM Navigator and Yorodumi are based on the updated data.

External links:wwPDB Remediation / Enriched Model Files Conforming to OneDep Data Standards Now Available in the PDB FTP Archive

-
Yorodumi Papers

Database of articles cited by EMDB/PDB/SASBDB data

  • Database of articles cited by EMDB, PDB, and SASBDB entries
  • Using PubMed data

Related info.:EMDB / PDB / SASBDB / Yorodumi / EMN Papers / Changes in new EM Navigator and Yorodumi

Read more