Structure of PDB 8ajv Chain AAA

Receptor sequence

>8ajvAAA (length=461) Species: 208964 (Pseudomonas aeruginosa PAO1)

GFTDYKVADITLAAWGRRELIIAESEMPALMGLRRKYAGQQPLKGAKILG
CIHMTINTGVLIETLVALGAEVRWSSCNIFSTQDQAAAAIAAAGIPVFAW
KGETEEEYEWCIEQTILKDGQPWDANMVLDDGGDLTEILHKKYPQMLERI
HGITEETTTGVHRLLDMLKNGTLKVPAINVNDSVTKSKNDNKYGCRHSLN
DAIKRGTDHLLSGKQALVIGYGDVGKGSSQSLRQEGMIVKVAEVDPICAM
QACMDGFEVVSPYKNGINDGTEASIDAALLGKIDLIVTTTGNVNVCDANM
LKALKKRAVVCNIGHFDNEIDTAFMRKNWAWEEVKPQVHKIHRTGKDGFD
AHNDDYLILLAEGRLVNLGNATGHPSRIMDGSFANQVLAQIHLFEQKYAD
LPAAEKAKRLSVEVLPKKLDEEVALEMVKGFGGVVTQLTPKQAEYIGVSV
EGPFKPDTYRY

3D structure

• PDB: 8ajv Crystal structure of the Q65N mutant of S-adenosyl-L-homocysteine hydrolase from Pseudomonas aeruginosa crystallized in the presence of K+ cations
• Chain: AAA
• Resolution: 1.9 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	NAD	AAA	T165 T166 T167 N199 I227 G230 D231 V232 E251 V252 T298 N300 V303 I321 G322 H323 N375 H382	T157 T158 T159 N191 I219 G222 D223 V224 E243 V244 T290 N292 V295 I313 G314 H315 N367 H374
BS02	NAD	AAA	K463 Y467	K455 Y459

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