Structure of PDB 2bgr Chain B

Receptor sequence

>2bgrB (length=729) Species: 9606 (Homo sapiens) [Search protein sequence]

DSRKTYTLTDYLKNTYRLKLYSLRWISDHEYLYKQENNILVFNAEYGNSS
VFLENSTFDEFGHSINDYSISPDGQFILLEYNYVKQWRHSYTASYDIYDL
NKRQLITEERIPNNTQWVTWSPVGHKLAYVWNNDIYVKIEPNLPSYRITW
TGKEDIIYNGITDWVYEEEVFSAYSALWWSPNGTFLAYAQFNDTEVPLIE
YSFYSDESLQYPKTVRVPYPKAGAVNPTVKFFVVNTDSLSSVTNATSIQI
TAPASMLIGDHYLCDVTWATQERISLQWLRRIQNYSVMDICDYDESSGRW
NCLVARQHIEMSTTGWVGRFRPSEPHFTLDGNSFYKIISNEEGYRHICYF
QIDKKDCTFITKGTWEVIGIEALTSDYLYYISNEYKGMPGGRNLYKIQLS
DYTKVTCLSCELNPERCQYYSVSFSKEAKYYQLRCSGPGLPLYTLHSSVN
DKGLRVLEDNSALDKMLQNVQMPSKKLDFIILNETKFWYQMILPPHFDKS
KKYPLLLDVYAGPCSQKADTVFRLNWATYLASTENIIVASFDGRGSGYQG
DKIMHAINRRLGTFEVEDQIEAARQFSKMGFVDNKRIAIWGWSYGGYVTS
MVLGSGSGVFKCGIAVAPVSRWEYYDSVYTERYMGLPTPEDNLDHYRNST
VMSRAENFKQVEYLLIHGTADDNVHFQQSAQISKALVDVGVDFQAMWYTD
EDHGIASSTAHQHIYTHMSHFIKQCFSLP

3D structure

PDB

2bgr Crystal Structures of HIV-1 Tat-Derived Nonapeptides Tat-(1-9) and Trp2-Tat-(1-9) Bound to the Active Site of Dipeptidyl-Peptidase Iv (Cd26)

Chain

Resolution

2.0 Å

3D
structure

Catalytic site residues are labeled in the structure
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Enzymatic activity

Catalytic site (original residue number in PDB)	Y547 S630 Y631 D708 H740
Catalytic site (residue number reindexed from 1)	Y510 S593 Y594 D671 H703
Enzyme Commision number	3.4.14.5: dipeptidyl-peptidase IV.

Interaction with ligand

Site #	Ligand	Ligand chain	Binding residues on receptor (original residue number in PDB)	Binding residues on receptor (residue number reindexed from 1)	Binding affinity
BS01	peptide	B	R125 E205 E206 Y547 S630 Y631 Y662 Y666	R88 E168 E169 Y510 S593 Y594 Y625 Y629

Gene Ontology

	Molecular Function
GO:0001618	virus receptor activity
GO:0002020	protease binding
GO:0004177	aminopeptidase activity
GO:0004252	serine-type endopeptidase activity
GO:0005102	signaling receptor binding
GO:0005515	protein binding
GO:0008236	serine-type peptidase activity
GO:0008239	dipeptidyl-peptidase activity
GO:0042802	identical protein binding
GO:0042803	protein homodimerization activity
GO:0045499	chemorepellent activity

	Biological Process
GO:0001662	behavioral fear response
GO:0001666	response to hypoxia
GO:0006508	proteolysis
GO:0007155	cell adhesion
GO:0008284	positive regulation of cell population proliferation
GO:0010716	negative regulation of extracellular matrix disassembly
GO:0016486	peptide hormone processing
GO:0019065	receptor-mediated endocytosis of virus by host cell
GO:0031295	T cell costimulation
GO:0033632	regulation of cell-cell adhesion mediated by integrin
GO:0035641	locomotory exploration behavior
GO:0036343	psychomotor behavior
GO:0042110	T cell activation
GO:0043542	endothelial cell migration
GO:0046718	symbiont entry into host cell
GO:0046813	receptor-mediated virion attachment to host cell
GO:0050919	negative chemotaxis
GO:0061025	membrane fusion
GO:0090024	negative regulation of neutrophil chemotaxis
GO:0120116	glucagon processing

	Cellular Component
GO:0005576	extracellular region
GO:0005765	lysosomal membrane
GO:0005886	plasma membrane
GO:0005925	focal adhesion
GO:0009986	cell surface
GO:0016020	membrane
GO:0016324	apical plasma membrane
GO:0030027	lamellipodium
GO:0030139	endocytic vesicle
GO:0031258	lamellipodium membrane
GO:0042995	cell projection
GO:0045121	membrane raft
GO:0046581	intercellular canaliculus
GO:0070062	extracellular exosome
GO:0070161	anchoring junction

View graph for
Molecular Function

View graph for
Biological Process

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Cellular Component

External links

PDB	RCSB:2bgr, PDBe:2bgr, PDBj:2bgr
PDBsum	2bgr
PubMed	15695814
UniProt	P27487\|DPP4_HUMAN Dipeptidyl peptidase 4 (Gene Name=DPP4)

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