Structure of PDB 3un4 Chain K

Receptor sequence
>3un4K (length=212) Species: 559292 (Saccharomyces cerevisiae S288C) [Search protein sequence]
TTTLAFRFQGGIIVAVDSRATAGNWVASQTVKKVIEINPFLLGTMAGGAA
DCQFWETWLGSQCRLHELREKERISVAAASKILSNLVYQYKGAGLSMGTM
ICGYTRKEGPTIYYVDSDGTRLKGDIFCVGSGQTFAYGVLDSNYKWDLSV
EDALYLGKRSILAAAHRDAYSGGSVNLYHVTEDGWIYHGNHDVGELFWKV
KEEEGSFNNVIG
3D structure
PDB3un4 Immuno- and constitutive proteasome crystal structures reveal differences in substrate and inhibitor specificity.
ChainK
Resolution3.4 Å
3D
structure
Catalytic site residues are labeled in the structure
[Spin on]
[Spin off]
[Reset orientation]

[High quality]
[Low quality]

[White background]
[Black background]

[Download]
[Download structure with residue number starting from 1]
Enzymatic activity
Catalytic site (original residue number in PDB) T1 D17 R19 K33 G47 S131 D168 S171
Catalytic site (residue number reindexed from 1) T1 D17 R19 K33 G47 S131 D168 S171
Enzyme Commision number 3.4.25.1: proteasome endopeptidase complex.
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 04C K T1 R19 A20 T21 V31 K33 M45 G47 G48 A49 Y170 T1 R19 A20 T21 V31 K33 M45 G47 G48 A49 Y170
Gene Ontology
Molecular Function
GO:0004298 threonine-type endopeptidase activity
Biological Process
GO:0051603 proteolysis involved in protein catabolic process
Cellular Component
GO:0005839 proteasome core complex

View graph for
Molecular Function
View graph for
Biological Process
View graph for
Cellular Component
External links
PDB RCSB:3un4, PDBe:3un4, PDBj:3un4
PDBsum3un4
PubMed22341445
UniProtP30656|PSB5_YEAST Proteasome subunit beta type-5 (Gene Name=PRE2)

[Back to BioLiP]