Annotations: 3LXU

Crystal Structure of Tripeptidyl Peptidase 2 (TPP II)

External Resource: Annotation

Domain Annotation: ECOD Classification
Domain Annotation: CATH
Protein Family Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A [auth X]	Peptidase_S8	e3lxuX2	A: beta barrels	X: Immunoglobulin-like beta-sandwich	H: Immunoglobulin-related	T: PEBP-like	F: Peptidase_S8	ECOD (v294.2)
A [auth X]	TPPII_Ig-like-1	e3lxuX3	A: beta barrels	X: Immunoglobulin-like beta-sandwich	H: Immunoglobulin-related	T: PEBP-like	F: TPPII_Ig-like-1	ECOD (v294.2)
A [auth X]	TPPII_GBD	e3lxuX4	A: beta barrels	X: Immunoglobulin-like beta-sandwich	H: Immunoglobulin-related	T: PEBP-like	F: TPPII_GBD	ECOD (v294.2)
A [auth X]	TPPII	e3lxuX6	A: beta barrels	X: Immunoglobulin-like beta-sandwich	H: Immunoglobulin-related	T: PEBP-like	F: TPPII	ECOD (v294.2)
A [auth X]	TPPII_C	e3lxuX7	A: beta barrels	X: Immunoglobulin-like beta-sandwich	H: Immunoglobulin-related	T: PEBP-like	F: TPPII_C	ECOD (v294.2)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A [auth X]	3.40.50.200	Alpha Beta	3-Layer(aba) Sandwich	Rossmann fold	Peptidase S8/S53 domain	CATH (4.3.0)
A [auth X]	2.20.25.690	Mainly Beta	Single Sheet	N-terminal domain of TfIIb		CATH (4.3.0)
A [auth X]	6.10.250.3080	Special	Helix non-globular	Single alpha-helices involved in coiled-coils or other helix-helix interfaces		CATH (4.3.0)
A [auth X]	2.60.40.3170	Mainly Beta	Sandwich	Immunoglobulin-like		CATH (4.3.0)
A [auth X]	1.25.40.710	Mainly Alpha	Alpha Horseshoe	Serine Threonine Protein Phosphatase 5, Tetratricopeptide repeat		CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A [auth X]	PF21223	Tripeptidyl-peptidase II, first Ig-like domain (TPPII_Ig-like-1)	Tripeptidyl-peptidase II, first Ig-like domain	Tripeptidyl peptidase II (TPPII) is a crucial component of the proteolytic cascade acting downstream of the 26S proteasome in the ubiquitin-proteasome pathway. It is an amino peptidase belonging to the subtilase family removing tripeptides from the ...	Tripeptidyl peptidase II (TPPII) is a crucial component of the proteolytic cascade acting downstream of the 26S proteasome in the ubiquitin-proteasome pathway. It is an amino peptidase belonging to the subtilase family removing tripeptides from the free N terminus of oligopeptides. This protein adopts a dimeric assembly. Each monomer is organised into three main parts: the N-terminal subtilisine-like domain (Pfam:PF00082) a central domain and C-terminal domain (Pfam:PF12583). The central domain can be subdivided into two Ig-like domains and a GBD-like domain (Pfam:PF21316). This entry represents the first Ig-like domain, while Pfam:PF12580 represents the second one [1].	Domain
A [auth X]	PF00082	Subtilase family (Peptidase_S8)	Subtilase family	Subtilases are a family of serine proteases. They appear to have independently and convergently evolved an Asp/Ser/His catalytic triad, like that found in the trypsin serine proteases (see Pfam:PF00089). Structure is an alpha/beta fold containing a 7 ...	Subtilases are a family of serine proteases. They appear to have independently and convergently evolved an Asp/Ser/His catalytic triad, like that found in the trypsin serine proteases (see Pfam:PF00089). Structure is an alpha/beta fold containing a 7-stranded parallel beta sheet, order 2314567.	Domain
A [auth X]	PF12580	Tripeptidyl peptidase II (TPPII)	Tripeptidyl peptidase II	-	Family
A [auth X]	PF21316	TPPII, galactose-binding domain-like (TPPII_GBD)	TPPII, galactose-binding domain-like	Tripeptidyl peptidase II (TPP II) is a large eukaryotic protease that acts downstream of the 26S proteasome and releases N-terminal tripeptides from polypeptides [1]. It consists of three main parts: the N-terminal subtilisin-like domain (Pfam:PF0008 ...	Tripeptidyl peptidase II (TPP II) is a large eukaryotic protease that acts downstream of the 26S proteasome and releases N-terminal tripeptides from polypeptides [1]. It consists of three main parts: the N-terminal subtilisin-like domain (Pfam:PF00082), a central domain and a C-terminal domain (Pfam:PF12583) [1]. According to the structures, the central domain can be subdivided into Ig-like and galactose-binding domain-like (GBD). This entry represents the GBD segment of TPPII central domain [1].	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A [auth X]	Tripeptidyl-peptidase 2	serine-type exopeptidase activity peptidase activity serine hydrolase activity catalytic activity, acting on a protein serine-type peptidase activity hydrolase activity exopeptidase activity catalytic activity tripeptidyl-peptidase activity serine-type endopeptidase activity endopeptidase activity aminopeptidase activity identical protein binding protein binding serine-type exopeptidase activity peptidase activity serine hydrolase activity catalytic activity, acting on a protein serine-type peptidase activity hydrolase activity exopeptidase activity catalytic activity tripeptidyl-peptidase activity serine-type endopeptidase activity endopeptidase activity aminopeptidase activity identical protein binding protein binding binding	proteolysis metabolic process cellular process primary metabolic process protein metabolic process macromolecule metabolic process	cellular anatomical structure intracellular anatomical structure cytoplasm cytosol protein-containing complex

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A [auth X]	IPR023828	Peptidase S8, subtilisin, Ser-active site	Active Site
A [auth X]	IPR022232	Tripeptidyl peptidase II, C-terminal domain, arthropoda	Domain
A [auth X]	IPR048384	Tripeptidyl-peptidase II, galactose-binding domain-like	Domain
A [auth X]	IPR022398	Peptidase S8, subtilisin, His-active site	Active Site
A [auth X]	IPR048383	Tripeptidyl-peptidase II, first Ig-like domain	Domain
A [auth X]	IPR000209	Peptidase S8/S53 domain	Domain
A [auth X]	IPR015500	Peptidase S8, subtilisin-related	Family
A [auth X]	IPR034051	Tripeptidyl-peptidase II domain	Domain
A [auth X]	IPR036852	Peptidase S8/S53 domain superfamily	Homologous Superfamily
A [auth X]	IPR046939	Tripeptidyl-peptidase 2, C-terminal domain superfamily	Homologous Superfamily
A [auth X]	IPR050131	Subtilisin-like serine protease	Family
A [auth X]	IPR046940	Tripeptidyl peptidase II, Ig-like domain superfamily	Homologous Superfamily
A [auth X]	IPR022229	Tripeptidyl peptidase II, second Ig-like domain	Domain

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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. RCSB PDB uses resources of the National Energy Research Scientific Computing Center (NERSC), a Department of Energy User Facility.