Structure of PDB 1nui Chain B

Receptor sequence
>1nuiB (length=239) Species: 10760 (Escherichia phage T7) [Search protein sequence]
VFLYHIPCDNCGSSDGNSLFSDGHTFCYVCEKWKERASKRKPSGGKPGTY
NVWNFGESNGRYSALTARGISKETCQKAGYWIAKVDGVMYQVADYRDQNG
NIVSQKVRDKDKNFKTTGSHKSDALFGKHLWNGGKKIVVTEGEIDMLTVM
ELQDCKYPVVSLGHGASAAKKTCAANYEYFDQFEQIILMFDMDEAGRKAV
EEAAQVLPAGKVRVAVLPCKDANECHLNGHDREIMEQVW
3D structure
PDB1nui Modular Architecture of the Bacteriophage T7 Primase Couples RNA primer Synthesis to DNA Synthesis
ChainB
Resolution2.9 Å
3D
structure
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Enzymatic activity
Enzyme Commision number 2.7.7.-
3.6.4.12: DNA helicase.
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 ZN B C17 C20 C36 C39 C8 C11 C27 C30
BS02 MG B E157 D207 E141 D191
Gene Ontology
Molecular Function
GO:0003697 single-stranded DNA binding
GO:0003896 DNA primase activity
GO:0004386 helicase activity
GO:0008270 zinc ion binding
GO:0043139 5'-3' DNA helicase activity

View graph for
Molecular Function
External links
PDB RCSB:1nui, PDBe:1nui, PDBj:1nui
PDBsum1nui
PubMed12769857
UniProtP03692|HELIC_BPT7 DNA helicase/primase (Gene Name=4)

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