Structure of PDB 3l06 Chain A

Receptor sequence

>3l06A (length=332) Species: 190485 (Xanthomonas campestris pv. campestris str. ATCC 33913)

LKHFLNTQDWSRAELDALLTQAALFKRNKLGSELKGKSIALVFFNPSMRT
RTSFELGAFQLGGHAVVLQPGKDAWPIEFNLGTVMDGDTVEHIAEVARVL
GRYVDLIGVRAFPKFVDWSKDREDQVLKSFAKYSPVPVINMETITHPCQE
LAHALALQEHFGTPDLRGKKYVLTWTYHPKPLNTAVANSALTIATRMGMD
VTLLCPTPDYILDERYMDWAAQNVAESGGSLQVSHDIDSAYAGADVVYAK
SWGALPFFGNWEPEKPIRDQYQHFIVDERKMALTNNGVFSHCLPLRRNVK
ATDAVMDSPNCIAIDEAENRLHVQKAIMAALV

3D structure

• PDB: 3l06 A single mutation in the active site swaps the substrate specificity of N-acetyl-L-ornithine transcarbamylase and N-succinyl-L-ornithine transcarbamylase.
• Chain: A
• Resolution: 2.81 Å

Enzymatic activity

• Catalytic site (original residue number in PDB): R112 H148 Q151 K252 C294 R322
• Catalytic site (residue number reindexed from 1): R110 H146 Q149 K250 C292 R320
• Enzyme Commision number: 2.1.3.9: N-acetylornithine carbamoyltransferase.

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	SN0	A	F114 E144 H180 L184 N185 K252 C294 R298	F112 E142 H178 L182 N183 K250 C292 R296
BS02	CP	A	S49 M50 R51 T52 R112 R322	S47 M48 R49 T50 R110 R320

Gene Ontology

Molecular Function

• GO:0004585 ornithine carbamoyltransferase activity
• GO:0016597 amino acid binding
• GO:0016740 transferase activity
• GO:0016743 carboxyl- or carbamoyltransferase activity
• GO:0043857 N-acetylornithine carbamoyltransferase activity

Biological Process

• GO:0006520 amino acid metabolic process
• GO:0006526 L-arginine biosynthetic process
• GO:0019240 citrulline biosynthetic process
• GO:0042450 arginine biosynthetic process via ornithine

Cellular Component

• GO:0005737 cytoplasm

External links

• PDB: RCSB:3l06, PDBe:3l06, PDBj:3l06
• PDBsum: 3l06
• PubMed: 17600144
• UniProt: Q8P8J2|AOTC_XANCP N-acetylornithine carbamoyltransferase (Gene Name=argF')