Structure of PDB 4oiq Chain D

Receptor sequence

>4oiqD (length=1487) Species: 300852 (Thermus thermophilus HB8)

KEVRKVRIALASPEKIRSWSYGEVEKPETINYRTLKPERDGLFDERIFGP
IKDYECACGKYKRQRFEGKVCERCGVEVTKSIVRRYRMGHIELATPAAHI
WFVKDVPSKIGTLLDLSATELEQVLYFSKYIVLDPKGAILNGVPVEKRQL
LTDEEYRELRYGKQETYPLPPGVDALVKDGEEVVKGQELAPGVVSRLDGV
ALYRFPRRVRVEYVKKERAGLRLPLAAWVEKEAYKPGEILAELPEPYLFR
AEEEGVVELKELEEGAFLVLRREDEPVATYFLPVGMTPLVVHGEIVEKGQ
PLAEAKGLLRMPRQVRAAQVEAEEEGETVYLTLFLEWTEPKDYRVQPHMN
VVVPEGARVEAGDKIVAAIDPEEEVIAEAEGVVHLHEPASILVVKARVYP
FEDDVEVSTGDRVAPGDVLADGGKVKSDVYGRVEVDLVRNVVRVVESYDI
DARMGAEAIQQLLKELDLEALEKELLEEMKHPSRARRAKARKRLEVVRAF
LDSGNRPEWMILEAVPVLPPDLRPMVQVDGGRFATSDLNDLYRRLINRNN
RLKKLLAQGAPEIIIRNEKRMLQEAVDALLDNGRRGAPVTNPGSDRPLRS
LTDILSGKQGRFRQNLLGKRVDYSGRSVIVVGPQLKLHQCGLPKRMALEL
FKPFLLKKMEEKGIAPNVKAARRMLERQRDIKDEVWDALEEVIHGKVVLL
NRAPTLHRLGIQAFQPVLVEGQSIQLHPLVCEAFNADFDGDQMAVHVPLS
SFAQAEARIQMLSAHNLLSPASGEPLAKPSRDIILGLYYITQVRKEKKGA
GLEFATPEEALAAHERGEVALNAPIKVAGRETSVGRLKYVFANPDEALLA
VAHGIVDLQDVVTVRYMGKRLETSPGRILFARIVAEAVEDEKVAWELIQL
DVPQEKNSLKDLVYQAFLRLGMEKTARLLDALKYYGFTFSTTSGITIGID
DAVIPEEKKQYLEEADRKLLQIEQAYEMGFLTDRERYDQILQLWTETTEK
VTQAVFKNFEENYPFNPLYVMAQSGARGNPQQIRQLCGLRGLMQKPSGET
FEVPVRSSFREGLTVLEYFISSHGARKGGADTALRTADSGYLTRKLVDVT
HEIVVREADCGTTNYISVPLFQPDEVTRSLRLRKRADIEAGLYGRVLARE
VEVLGVRLEEGRYLSMDDVHLLIKAAEAGEIQEVPVRSPLTCQTRYGVCQ
KCYGYDLSMARPVSIGEAVGIVAAQSIGEPGTQLTMITQGLPRVIELFEA
RRPKAKAVISEIDGVVRIEETEEKLSVFVESEGFSKEYKLPKEARLLVKD
GDYVEAGQPLTRGAIDPHQLLEAKGPEAVERYLVEEIQKVYRAQGVKLHD
KHIEIVVRQMMKYVEVTDPGDSRLLEGQVLEKWDVEALNERLIAEGKTPV
AWKPLLMGVTKSALSTKSWLSAASFQNTTHVLTEAAIAGKKDELIGLKEN
VILGRLIPAGTGSDFVRFTQVVDQKTLKAIEEARKEA

3D structure

• PDB: 4oiq GE23077 binds to the RNA polymerase 'i' and 'i+1' sites and prevents the binding of initiating nucleotides.
• Chain: D
• Resolution: 3.624 Å

Enzymatic activity

• Enzyme Commision number: 2.7.7.6: DNA-directed RNA polymerase.

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	dna	D	K610 R615 R622 R628 T1088 A1089 N1442	K608 R613 R620 R626 T1086 A1087 N1427
BS02	ZN	D	C1112 C1194 C1201 C1204	C1110 C1192 C1199 C1202
BS03	ZN	D	C58 C73	C56 C71
BS04	MG	D	D739 D741 D743	D737 D739 D741

Gene Ontology

Molecular Function

• GO:0000287 magnesium ion binding
• GO:0003677 DNA binding
• GO:0003899 DNA-directed 5'-3' RNA polymerase activity
• GO:0005515 protein binding
• GO:0008270 zinc ion binding
• GO:0016779 nucleotidyltransferase activity
• GO:0034062 5'-3' RNA polymerase activity
• GO:0046872 metal ion binding

Biological Process

• GO:0006351 DNA-templated transcription

Cellular Component

• GO:0000428 DNA-directed RNA polymerase complex

External links

• PDB: RCSB:4oiq, PDBe:4oiq, PDBj:4oiq
• PDBsum: 4oiq
• PubMed: 24755292
• UniProt: Q8RQE8|RPOC_THET8 DNA-directed RNA polymerase subunit beta' (Gene Name=rpoC)