Structure of PDB 3mqy Chain B

Receptor sequence

>3mqyB (length=338) Species: 1911 (Streptomyces griseus) [Search protein sequence]

PFTYSIEATRNLATTERCIQDIRNAPVRNRSTQFQLAQQNMLAYTFGEVI
PGFASAGINGMDYRDVIGRPVENAVTEGTHFFRDDFRVDSNAKAKVAGDI
FEIVSSAVMWNCAARWNSLMVGEGWRSQPRYSRPTLSPSPRRQVAVLNLP
RSFDWVSLLVPESQEVIEEFRAGLRKDGLGLPTSTPDLAVVVLPEEFQND
EMWREEIAGLTRPNQILLSGAYQRLQGRVQPGEISLAVAFKRSLRSDRLY
QPLYEANVMQLLLEGKLGAPKVEFEVHTLAPEGTNAFVTYEAASLYGLAE
GRSAVHRAIRELYVPPTAADLARRFFAFLNERMELVNG

3D structure

PDB

3mqy New clues in the allosteric activation of DNA cleavage by SgrAI: structures of SgrAI bound to cleaved primary-site DNA and uncleaved secondary-site DNA.

Chain

Resolution

2.0 Å

3D
structure

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Enzymatic activity

Enzyme Commision number

3.1.21.4: type II site-specific deoxyribonuclease.

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)
BS01	dna	B	R152 S153	R151 S152
BS02	dna	B	S91 A95 K96 G99 R152 D188 R243 S244 R246 R249	S90 A94 K95 G98 R151 D187 R242 S243 R245 R248
BS03	dna	B	R246 S247 D248 G284	R245 S246 D247 G283
BS04	dna	B	R31 T33 Q36 L37 Q39 Q40 N92 A93 K96 V97 R152 R246 D248	R30 T32 Q35 L36 Q38 Q39 N91 A92 K95 V96 R151 R245 D247
BS05	MG	B	D188 F241	D187 F240
BS06	MG	B	E103 N149 L150 D188	E102 N148 L149 D187

Gene Ontology

	Molecular Function
GO:0042802	identical protein binding
GO:0046872	metal ion binding

View graph for
Molecular Function

External links

PDB	RCSB:3mqy, PDBe:3mqy, PDBj:3mqy
PDBsum	3mqy
PubMed	21206063
UniProt	Q9F6L0

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