Structure of PDB 7lnj Chain A Binding Site BS01

Receptor Information

>7lnj Chain A (length=543) Species: 272563 (Clostridioides difficile 630)

ASGIYYTPKIIVDYIVKKTLKNHDIIKNPYPRILDISCGCGNFLLEVYDI
LYDLFEENIYELKKKYDENYWTVDNIHRHILNYCIYGADIDEKAISILKD
SLTNKKIKINLFCCDSLKKKWRYKFDYIVGNPPYIGHKKLEKKYKKFLLE
KYSEVYKDKADLYFCFYKKIIDILKQGGIGSVITPRYFLESLSGKDLREY
IKSNVNVQEIVDFLGANIFKNIGVSSCILTFDKKKTKETYIDVFKIKNED
ICINKFETLEELLKSSKFEHFNINQRLLSDEWILVNKDDETFYNKIQEKC
KYSLEDIAISFQGIITGCDKAFILSKDDVKLNLVDDKFLKCWIKSKNINK
YIVDKSEYRLIYSNDIDNENTNKRILDEIIGLYKTKLENRRECKSGIRKW
YELQWGREKLFFERKKIMYPYKSNENRFAIDYDNNFSSADVYSFFIKEEY
LDKFSYEYLVGILNSSVYDKYFKITAKKMSKNIYDYYPNKVMKIRIFRDN
NYEEIENLSKQIISILLNKSIDKGKVEKLQIKMDNLIMDSLGI

Ligand information

>7lnj Chain E (length=13)

tgggactttttga

Receptor-Ligand Complex Structure

Structure summary

• PDB: 7lnj Clostridioides difficile specific DNA adenine methyltransferase CamA squeezes and flips adenine out of DNA helix.
• Resolution: 2.68 Å
• Binding residue (original residue number in PDB): H171 K172 K176 K179 D192 K193 I349 G351 D353 K378 S379 K380 R425 Q438 W439 Y455 K456 I517
• Binding residue (residue number reindexed from 1): H137 K138 K142 K145 D158 K159 I315 G317 D319 K344 S345 K346 R391 Q404 W405 Y421 K422 I483

Enzymatic activity

• Enzyme Commision number: 2.1.1.72: site-specific DNA-methyltransferase (adenine-specific).

Gene Ontology

Molecular Function

• GO:0003676 nucleic acid binding
• GO:0008168 methyltransferase activity
• GO:0009007 site-specific DNA-methyltransferase (adenine-specific) activity

Biological Process

• GO:0006304 DNA modification
• GO:0032259 methylation

External links

• PDB: RCSB:7lnj, PDBe:7lnj, PDBj:7lnj
• PDBsum: 7lnj
• PubMed: 34103525
• UniProt: Q183J3