Structure of PDB 7rdq Chain C

Receptor sequence

>7rdqC (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: 7rdq Structural and mechanistic basis of reiterative transcription initiation.
• Chain: C
• Resolution: 3.0 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	R142 K167 G169 P170 W171 N187 I325 L418 R422 V427	R135 K160 G162 P163 W164 N180 I318 L411 R415 V420
BS02	dna	C	R350 E357 M361 N374 R376 R388 R422 G1023 K1024 R1031	R343 E350 M354 N367 R369 R381 R415 G1016 K1017 R1024
BS03	rna	C	N187 K188 R189 Q390 R409 G414 G416 G417 L418 T419 R420 N448 K846 H999	N180 K181 R182 Q383 R402 G407 G409 G410 L411 T412 R413 N441 K839 H992

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:7rdq, PDBe:7rdq, PDBj:7rdq
• PDBsum: 7rdq
• PubMed: 35082149
• UniProt: Q8RQE9|RPOB_THET8 DNA-directed RNA polymerase subunit beta (Gene Name=rpoB)