Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

ChainsTypeFamily Name Domain Identifier Family IdentifierProvenance Source (Version)
BSCOP2B SuperfamilyMetalloproteases (zincins) catalytic domain8036789 3001975 SCOP2B (2022-06-29)
BSCOP2B SuperfamilyADP-ribosylation8036792 3001208 SCOP2B (2022-06-29)
BSCOP2B SuperfamilyMetalloproteases (zincins) catalytic domain8036791 3001975 SCOP2B (2022-06-29)
ASCOP2B SuperfamilyMetalloproteases (zincins) catalytic domain8036789 3001975 SCOP2B (2022-06-29)
ASCOP2B SuperfamilyADP-ribosylation8036792 3001208 SCOP2B (2022-06-29)
ASCOP2B SuperfamilyMetalloproteases (zincins) catalytic domain8036791 3001975 SCOP2B (2022-06-29)

Domain Annotation: ECOD Classification ECOD Database Homepage

ChainsFamily NameDomain Identifier ArchitecturePossible HomologyHomologyTopologyFamilyProvenance Source (Version)
BAnthrax-tox_Me1pwvB1 A: a+b complex topologyX: ADP-ribosylation (From Topology)H: ADP-ribosylation (From Topology)T: ADP-ribosylationF: Anthrax-tox_MECOD (1.6)
BATLFe1pwvB2 A: mixed a+b and a/bX: Zincin-likeH: Metalloproteases (zincins) catalytic domain (From Topology)T: Metalloproteases (zincins) catalytic domainF: ATLFECOD (1.6)
AAnthrax-tox_Me1pwvA1 A: a+b complex topologyX: ADP-ribosylation (From Topology)H: ADP-ribosylation (From Topology)T: ADP-ribosylationF: Anthrax-tox_MECOD (1.6)
AATLFe1pwvA2 A: mixed a+b and a/bX: Zincin-likeH: Metalloproteases (zincins) catalytic domain (From Topology)T: Metalloproteases (zincins) catalytic domainF: ATLFECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Protein Family Annotation Pfam Database Homepage

ChainsAccessionNameDescriptionCommentsSource
A, B
PF09156Anthrax toxin lethal factor, middle domain (Anthrax-tox_M)Anthrax toxin lethal factor, middle domainMembers of this family, which are predominantly found in anthrax toxin lethal factor, adopt a structure consisting of a core of antiparallel beta sheets and alpha helices. They form a long deep groove within the protein that anchors the 16-residue N- ...Members of this family, which are predominantly found in anthrax toxin lethal factor, adopt a structure consisting of a core of antiparallel beta sheets and alpha helices. They form a long deep groove within the protein that anchors the 16-residue N-terminal tail of MAPKK-2 before cleavage. It has been noted that this domain resembles the ADP-ribosylating toxin from Bacillus cereus, but the active site has been modified to augment substrate recognition [1].
Domain
A, B
PF07737Anthrax toxin lethal factor, N- and C-terminal domain (ATLF)Anthrax toxin lethal factor, N- and C-terminal domainThe C-terminal domain is the catalytically active domain whereas the N-terminal domain is likely to be inactive.Domain

Structure Motif Annotation: Mechanism and Catalytic Site Atlas M-CSA Database Homepage

ChainsEnzyme NameDescriptionCatalytic Residues
anthrax lethal factor endopeptidase  M-CSA #641

Lethal Factor is critical in anthrax pathogenesis, by acting as a specific protease cleaving members of the MAPKK (mitogen-activated protein kinase kinase) family at their amino termini with its commonly cleaving at the sequence BBBBxHxH, where B denotes a basic amino acid Arg or Lys and H denotes a hydrophobic amino acid. This results in signalling pathway inhibition. The catalytic domain of this enzyme is distantly related to the zinc metalloprotease family.
The implications of finding targets for inhibition of anthrax lethal factor are obvious and so the catalytic details of this enzyme should be highly important especially due to its use in biological warfare and when inhaled is fatal.

Defined by 5 residues: HIS:A-686GLU:A-687HIS:A-690TYR:A-728GLU:A-735
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Explore in 3DM-CSA Motif Definition
EC: 3.4.24 (PDB Primary Data)