Structure of PDB 3e4a Chain B

Receptor sequence
>3e4aB (length=961) Species: 9606 (Homo sapiens) [Search protein sequence]
NNPAIKRIGNHITKSPEDKREYRGLELANGIKVLLISDPTTDKSSAALDV
HIGSLSDPPNIAGLSHFLQHMLFLGTKKYPKENEYSQFLSEHAGSSNAFT
SGEHTNYYFDVSHEHLEGALDRFAQFFLSPLFDESAKDREVNAVDSEHEK
NVMNDAWRLFQLEKATGNPKHPFSKFGTGNKYTLETRPNQEGIDVRQELL
KFHSAYYSSNLMAVVVLGRESLDDLTNLVVKLFSEVENKNVPLPEFPEHP
FQEEHLKQLYKIVPIKDIRNLYVTFPIPDLQKYYKSNPGHYLGHLIGHEG
PGSLLSELKSKGWVNTLVGGQKEGARGFMFFIINVDLTEEGLLHVEDIIL
HMFQYIQKLRAEGPQEWVFQELKDLNAVAFRFKDKERPRGYTSKIAGILH
YYPLEEVLTAEYLLEEFRPDLIEMVLDKLRPENVRVAIVSKSFEGKTDRT
EEWYGTQYKQEAIPDEVIKKWQNADLNGKFKLPTKNEFIPTNFEILPLEK
EATPYPALIKDTAMSKLWFKQDDKFFLPKANLNFEFFSPFAYVDPLHSNM
AYLYLELLKDSLNEYAYAAELAGLSYDLQNTIYGMYLSVKGYNDKQPILL
KKIIEKMATFEIDEKRFEIIKEAYMRSLNNFRAEQPHQHAMYYLRLLMTE
VAWTKDELKEALDDVTLPRLKAFIPQLLSRLHIEALLHGNITKQAALGIM
QMVEDTLIEHAHTKPLLPSQLVRYREVQLPDRGWFVYQQRNEVHNNSGIE
IYYQTDMQSTSENMFLELFAQIISEPAFNTLRTKEQLGYIVFSGPRRANG
IQGLRFIIQSEKPPHYLESRVEAFLITMEKSIEDMTEEAFQKHIQALAIR
RLDKPKKLSAESAKYWGEIISQQYNFDRDNTEVAYLKTLTKEDIIKFYKE
MLAVDAPRRHKVSVHVLAREMDSNPVVGNLSQAPALPQPEVIQNMTEFKR
GLPLFPLVKPH
3D structure
PDB3e4a Designed inhibitors of insulin-degrading enzyme regulate the catabolism and activity of insulin.
ChainB
Resolution2.6 Å
3D
structure
Catalytic site residues are labeled in the structure
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Enzymatic activity
Catalytic site (original residue number in PDB) Q111
Catalytic site (residue number reindexed from 1) Q69
Enzyme Commision number 3.4.24.56: insulysin.
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 G339 E341 V360 G361 Y609 G297 E299 V318 G319 Y567
BS02 ZN B H108 H112 E189 H66 H70 E147
BS03 QIX B H108 Q111 H112 F115 L116 N139 E189 F820 R824 Y831 H66 Q69 H70 F73 L74 N97 E147 F778 R782 Y789
Gene Ontology
Molecular Function
GO:0001618 virus receptor activity
GO:0004175 endopeptidase activity
GO:0004222 metalloendopeptidase activity
GO:0005515 protein binding
GO:0005524 ATP binding
GO:0008237 metallopeptidase activity
GO:0008270 zinc ion binding
GO:0042277 peptide binding
GO:0042803 protein homodimerization activity
GO:0043559 insulin binding
GO:0046872 metal ion binding
Biological Process
GO:0006508 proteolysis
GO:0008286 insulin receptor signaling pathway
GO:0010815 bradykinin catabolic process
GO:0010992 ubiquitin recycling
GO:0019885 antigen processing and presentation of endogenous peptide antigen via MHC class I
GO:0030163 protein catabolic process
GO:0032092 positive regulation of protein binding
GO:0042447 hormone catabolic process
GO:0043171 peptide catabolic process
GO:0045732 positive regulation of protein catabolic process
GO:0046718 symbiont entry into host cell
GO:0050435 amyloid-beta metabolic process
GO:0051603 proteolysis involved in protein catabolic process
GO:0097242 amyloid-beta clearance
GO:0150094 amyloid-beta clearance by cellular catabolic process
GO:1901142 insulin metabolic process
GO:1901143 insulin catabolic process
GO:1903715 regulation of aerobic respiration
Cellular Component
GO:0005576 extracellular region
GO:0005615 extracellular space
GO:0005634 nucleus
GO:0005737 cytoplasm
GO:0005739 mitochondrion
GO:0005777 peroxisome
GO:0005782 peroxisomal matrix
GO:0005829 cytosol
GO:0005886 plasma membrane
GO:0009897 external side of plasma membrane
GO:0009986 cell surface
GO:0016323 basolateral plasma membrane
GO:0070062 extracellular exosome

View graph for
Molecular Function
View graph for
Biological Process
View graph for
Cellular Component
External links
PDB RCSB:3e4a, PDBe:3e4a, PDBj:3e4a
PDBsum3e4a
PubMed20498699
UniProtP14735|IDE_HUMAN Insulin-degrading enzyme (Gene Name=IDE)

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