Structure of PDB 4oio Chain C

Receptor sequence

>4oioC (length=1111) Species: 300852 (Thermus thermophilus HB8)

MEIKRFGRIREVIPLPPLTEIQVESYRRALQADVPPEKRENVGIQAAFRE
TFPIEELVLDFLEYRLGEPPFPQDECREKDLTYQAPLYARLQLIHKDTGL
IKEDEVFLGHIPLMTEDGSFIINGADRVIVSQIHRSPGVYFTPDPARPGR
YIASIIPLPKRGPWIDLEVEPNGVVSMKVNKRKFPLVLLLRVLGYDQETL
ARELGAYGELVQGLMDESVFAMRPEEALIRLFTLLRPGDPPKRDKAVAYV
YGLIADPRRYDLGEAGRYKAEEKLGIRLSGRTLARFEDGEFKDEVFLPTL
RYLFALTAGVPGHEVDDIDHLGNRRIRTVGELMTDQFRVGLARLARGVRE
RMLMGSEDSLTPAKLVNSRPLEAAIREFFSRSQLSQFKDETNPLSSLRHK
RRISALGPGGLTRERAGFDVRDVHRTHYGRICPVETPEGANIGLITSLAA
YARVDELGFIRTPYRRVVGGVVTDEVVYMTATEEDRYTIAQANTPLEGNR
IAAERVVARRKGEPVIVSPEEVEFMDVSPKQVFSVNTNLIPFLEHDDANR
ALMGSNMQTQAVPLIRAQAPVVMTGLEERVVRDSLAALYAEEDGEVAKVD
GNRIVVRYEDGRLVEYPLRRFYRSNQGTALDQRPRVVVGQRVRKGDLLAD
GPASENGFLALGQNVLVAIMPFDGYNFEDAIVISEELLKRDFYTSIHIER
YEIEARDTKLGPERITRDIPHLSEAALRDLDEEGVVRIGAEVKPGDILVG
RTSFKGESEPTPEERLLRSIFGEKARDVKDTSLRVPPGEGGIVVRTVRLR
RGDPGVELKPGVREVVRVYVAQKRKLQVGDKLANRHGNKGVVAKILPVED
MPHLPDGTPVDVILNPLGVPSRMNLGQILETHLGLAGYFLGQRYISPIFD
GAKEPEIKELLAQAFEVYFGKRKGEGFGVDKREVEVLRRAEKLGLVTPGK
TPEEQLKELFLQGKVVLYDGRTGEPIEGPIVVGQMFIMKLYHMVEDKMHA
RSTGPYSLITQQPLGGKAQFGGQRFGEMEVWALEAYGAAHTLQEMLTLKS
DDIEGRNAAYEAIIKGEDVPEPSVPESFRVLVKELQALALDVQTLDEKDN
PVDIFEGLASK

3D structure

• PDB: 4oio GE23077 binds to the RNA polymerase 'i' and 'i+1' sites and prevents the binding of initiating nucleotides.
• Chain: C
• Resolution: 3.1 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	C	G1023 K1024 R1031 M1035	G1016 K1017 R1024 M1028
BS02	dna	C	R142 P166 W171 N187 R243 P247 D326 L418 R422	R135 P159 W164 N180 R236 P240 D319 L411 R415

Gene Ontology

Molecular Function

• GO:0003677 DNA binding
• GO:0003899 DNA-directed 5'-3' RNA polymerase activity
• GO:0016779 nucleotidyltransferase activity
• GO:0032549 ribonucleoside binding
• GO:0034062 5'-3' RNA polymerase activity

Biological Process

• GO:0006351 DNA-templated transcription

Cellular Component

• GO:0000428 DNA-directed RNA polymerase complex

External links

• PDB: RCSB:4oio, PDBe:4oio, PDBj:4oio
• PDBsum: 4oio
• PubMed: 24755292
• UniProt: Q8RQE9|RPOB_THET8 DNA-directed RNA polymerase subunit beta (Gene Name=rpoB)