Structure of PDB 8aju Chain CCC

Receptor sequence

>8ajuCCC (length=460) Species: 208964 (Pseudomonas aeruginosa PAO1)

FTDYKVADITLAAWGRRELIIAESEMPALMGLRRKYAGQQPLKGAKILGC
IHMTIATGVLIETLVALGAEVRWSSCNIFSTQDQAAAAIAAAGIPVFAWK
GETEEEYEWCIEQTILKDGQPWDANMVLDDGGDLTEILHKKYPQMLERIH
GITEETTTGVHRLLDMLKNGTLKVPAINVNDSVTKSKNDNKYGCRHSLND
AIKRGTDHLLSGKQALVIGYGDVGKGSSQSLRQEGMIVKVAEVDPICAMQ
ACMDGFEVVSPYKNGINDGTEASIDAALLGKIDLIVTTTGNVNVCDANML
KALKKRAVVCNIGHFDNEIDTAFMRKNWAWEEVKPQVHKIHRTGKDGFDA
HNDDYLILLAEGRLVNLGNATGHPSRIMDGSFANQVLAQIHLFEQKYADL
PAAEKAKRLSVEVLPKKLDEEVALEMVKGFGGVVTQLTPKQAEYIGVSVE
GPFKPDTYRY

3D structure

• PDB: 8aju Crystal structure of the Q65A mutant of S-adenosyl-L-homocysteine hydrolase from Pseudomonas aeruginosa cocrystallized with adenosine in the presence of K+ cations
• Chain: CCC
• Resolution: 1.645 Å

Enzymatic activity

• Enzyme Commision number: 3.13.2.1: adenosylhomocysteinase.

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	ADN	CCC	H61 T63 D139 E164 T165 D198 H323 H382 M387	H52 T54 D130 E155 T156 D189 H314 H373 M378
BS02	NAD	CCC	T165 T166 T167 N199 I227 G230 D231 V232 E251 V252 T298 N300 V303 I321 G322 H323 N375 H382	T156 T157 T158 N190 I218 G221 D222 V223 E242 V243 T289 N291 V294 I312 G313 H314 N366 H373

Gene Ontology

Molecular Function

• GO:0004013 adenosylhomocysteinase activity
• GO:0016787 hydrolase activity

Biological Process

• GO:0006730 one-carbon metabolic process
• GO:0033353 S-adenosylmethionine cycle
• GO:0071269 L-homocysteine biosynthetic process

Cellular Component

• GO:0005737 cytoplasm
• GO:0005829 cytosol

External links

• PDB: RCSB:8aju, PDBe:8aju, PDBj:8aju
• PDBsum: 8aju
• UniProt: Q9I685|SAHH_PSEAE Adenosylhomocysteinase (Gene Name=ahcY)