1NLN

CRYSTAL STRUCTURE OF HUMAN ADENOVIRUS 2 PROTEINASE WITH ITS 11 AMINO ACID COFACTOR AT 1.6 ANGSTROM RESOLUTION

External Resource: Annotation

Domain Annotation: SCOP/SCOPe Classification
Domain Annotation: SCOP2 Classification
Domain Annotation: ECOD Classification
Domain Annotation: CATH
Protein Family Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification
Structure Motif: Primary M-CSA Annotation

Domain Annotation: SCOP/SCOPe Classification SCOP-e Database Homepage

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
A	d1nlna_	Alpha and beta proteins (a+b)	Cysteine proteinases	Cysteine proteinases	Adenain-like	Human adenovirus 2 proteinase, adenain	(Human adenovirus 2 ) [TaxId: 10515 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2 Family	Adenain-like	8024533	4000883	SCOP2 (2022-06-29)
A	SCOP2 Superfamily	Cysteine proteinases	8036912	3001808	SCOP2 (2022-06-29)

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	Peptidase_C5	e1nlnA1	A: a+b complex topology	X: Cysteine proteinases-like	H: Cysteine proteinases (From Topology)	T: Cysteine proteinases	F: Peptidase_C5	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	3.40.395.10	Alpha Beta	3-Layer(aba) Sandwich	Adenoviral Proteinase	Chain	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A	PF00770	Adenovirus endoprotease (Peptidase_C5)	Adenovirus endoprotease	This family of adenovirus thiol endoproteases specifically cleave Gly-Ala peptides in viral precursor peptides.	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	Adenain	DNA binding binding organic cyclic compound binding nucleic acid binding cysteine-type peptidase activity peptidase activity catalytic activity, acting on a protein cysteine-type endopeptidase activity hydrolase activity catalytic activity endopeptidase activity	proteolysis metabolic process cellular process primary metabolic process protein metabolic process macromolecule metabolic process	host intracellular membrane-bounded organelle host cellular component host intracellular part cellular anatomical structure host cell part host intracellular region host cell nucleus host intracellular organelle virion component
B	PVIC	-	microtubule-dependent intracellular transport of viral material microtubule-dependent intracellular transport of viral material towards nucleus intracellular transport of virus viral process viral life cycle transport of virus transport of viral material towards nucleus biological process involved in interspecies interaction between organisms symbiont entry into host cell symbiont entry into host lysis of host organelle involved in viral entry into host cell biological process involved in interaction with host biological process involved in symbiotic interaction virion assembly microtubule-dependent intracellular transport of viral material microtubule-dependent intracellular transport of viral material towards nucleus intracellular transport of virus viral process viral life cycle transport of virus transport of viral material towards nucleus biological process involved in interspecies interaction between organisms symbiont entry into host cell symbiont entry into host lysis of host organelle involved in viral entry into host cell biological process involved in interaction with host biological process involved in symbiotic interaction virion assembly viral capsid assembly nuclear capsid assembly exit from host cell viral release from host cell	host cellular component cellular anatomical structure host cell viral capsid virion component viral procapsid host intracellular membrane-bounded organelle host intracellular part host cell part host intracellular region host cell nucleus host intracellular organelle host cell cytoplasm

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A	IPR038765	Papain-like cysteine peptidase superfamily	Homologous Superfamily
A	IPR000855	Peptidase C5, adenain	Family
B	IPR004243	Minor capsid protein VI	Family

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

Chains	Enzyme Name	Description	Catalytic Residues
A	adenain M-CSA #679	Human adenovirus proteinase is a cysteine proteinase required for the synthesis of infectious virus. Cofactors discovered include viral DNA, or a short oligopeptide which the enzyme itself cleaves out. The enzyme cleaves specific Gly-Ala peptides in a number of viral precursor proteins, and also cleaves host cell cytoskeleton keratins. The structure and mechanism of this enzyme suggest convergent evolution to give a catalytic mechanism similar to papain.	Defined by 4 residues: HIS:A-54GLU:A-71GLN:A-115CYS:A-122 \| Explore in 3D: M-CSA Motif Definition Search M-CSA Motif EC: 3.4.22.39 (PDB Primary Data) Search M-CSA Motif + EC 3.4.22.39

RCSB PDB Core Operations are funded by the U.S. National Science Foundation (DBI-2321666), the US Department of Energy (DE-SC0019749), and the National Cancer Institute, National Institute of Allergy and Infectious Diseases, and National Institute of General Medical Sciences of the National Institutes of Health under grant R01GM157729.