Structure of PDB 2o5i Chain N

Receptor sequence

>2o5iN (length=1303) Species: 300852 (Thermus thermophilus HB8)

KKEVRKVRIALASPEKIRSWSYGEVEKPETINYRTLKPERDGLFDERIFG
PIKDYECACGKYKRQRFEGKVCERCGVEVTKSIVRRYRMGHIELATPAAH
IWFVKDVPSKIGTLLDLSATELEQVLYFSKYIVLDPKGAILNGVPVEKRQ
LLTDEEYRELRYGKQETYPLPPGVDALVKDGEEVVKGQELAPGVVSRLDG
VALYRFASILVVKARVYPFEDDVEVSTGDRVAPGDVLADGGKVKSDVYGR
VEVDLVRNVVRVVESYDIDARMGAEAIQQLLKELDLEALEKELLEEMKHP
SRARRAKARKRLEVVRAFLDSGNRPEWMILEAVPVLPPDLRPMVQVDGGR
FATSDLNDLYRRLINRNNRLKKLLAQGAPEIIIRNEKRMLQEAVDALLDN
GRRGAPVTNPGSDRPLRSLTDILSGKQGRFRQNLLGKRVDYSGRSVIVVG
PQLKLHQCGLPKRMALELFKPFLLKKMEEKGIAPNVKAARRMLERQRDIK
DEVWDALEEVIHGKVVLLNRAPTLHRLGIQAFQPVLVEGQSIQLHPLVCE
AFNADFDGDQMAVHVPLSSFAQAEARIQMLSAHNLLSPASGEPLAKPSRD
IILGLYYITQVRKEKKGAGLEFATPEEALAAHERGEVALNAPIKVAGRET
SVGRLKYVFANPDEALLAVAHGIVDLQDVVTVRYMGKRLETSPGRILFAR
IVAEAVEDEKVAWELIQLDVPQEKNSLKDLVYQAFLRLGMEKTARLLDAL
KYYGFTFSTTSGITIGIDDAVIPEEKKQYLEEADRKLLQIEQAYEMGFLT
DRERYDQILQLWTETTEKVTQAVFKNFEENYPFNPLYVMAQSGARGNPQQ
IRQLCGLRGLMQKPSGETFEVPVRSSFREGLTVLEYFISSHGARKGGADT
ALRTADSGYLTRKLVDVTHEIVVREADCGTTNYISVPLFQPDEVTRSLRL
RKRADIEAGLYGRVLAREVEVLGVRLEEGRYLSMDDVHLLIKAAEAGEIQ
EVPVRSPLTCQTRYGVCQKCYGYDLSMARPVSIGEAVGIVAAQSIGEPGT
QLGLPRVIELFEARRPKAKAVISEIDGVVRIEETEEKLSVFVESEGFSKE
YKLPKEARLLVKDGDYVEAGQPLTRGAIDPHQLLEAKGPEAVERYLVEEI
QKVYRAQGVKLHDKHIEIVVRQMMKYVEVTDPGDSRLLEGQVLEKWDVEA
LNERLIAEGKTPVAWKPLLMGVTKSALSTKSWLSAASFQNTTHVLTEAAI
AGKKDELIGLKENVILGRLIPAGTGSDFVRFTQVVDQKTLKAIEEARKEA
VEA

3D structure

• PDB: 2o5i Structural basis for transcription elongation by bacterial RNA polymerase.
• Chain: N
• Resolution: 2.5 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	N	S485 R534 R586 K610 K621 R628 T1088 A1089 Y1093 R1096 Q1441 N1442	S301 R350 R402 K426 K437 R444 T904 A905 Y909 R912 Q1239 N1240
BS02	rna	N	D55 K82 R601 Q611 K671 R704 A705 D743	D54 K81 R417 Q427 K487 R520 A521 D559
BS03	dna	N	V108 R1266 K1426	V107 R1064 K1224
BS04	ZN	N	C1112 C1194 C1204	C928 C1010 C1020
BS05	MG	N	D739 D741 D743	D555 D557 D559

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:2o5i, PDBe:2o5i, PDBj:2o5i
• PDBsum: 2o5i
• PubMed: 17581590
• UniProt: Q8RQE8|RPOC_THET8 DNA-directed RNA polymerase subunit beta' (Gene Name=rpoC)