Structure of PDB 6x26 Chain J

Receptor sequence

>6x26J (length=1336) Species: 562 (Escherichia coli)

EFDAIKIALASPDMIRSWSFGEVKKPETINYRTFKPERDGLFCARIFGPV
KDYECLCGKYKRLKHRGVICEKCGVEVTQTKVRRERMGHIELASPTAHIW
FLKSLPSRIGLLLDMPLRDIERVLYFESYVVIEGGMTNLERQQILTEEQY
LDALEEFGDEFDAKMGAEAIQALLKSMDLEQECEQLREELNETNSETKRK
KLTKRIKLLEAFVQSGNKPEWMILTVLPVLPPDLRPLVPLDGGRFATSDL
NDLYRRVINRNNRLKRLLDLAAPDIIVRNEKRMLQEAVDALLDNGRRGRA
ITGSNKRPLKSLADMIKGKQGRFRQNLLGKRVDYSGRSVITVGPYLRLHQ
CGLPKKMALELFKPFIYGKLELRGLATTIKAAKKMVEREEAVVWDILDEV
IREHPVLLNRAPTLHRLGIQAFEPVLIEGKAIQLHPLVCAAYNADFDGDQ
MAVHVPLTLEAQLEARALMMSTNNILSPANGEPIIVPSQDVVLGLYYMTR
DCVNAKGEGMVLTGPKEAERLYRSGLASLHARVKVRITEYEKDANGELVA
KTSLKDTTVGRAILWMIVPKGLPYSIVNQALGKKAISKMLNTCYRILGLK
PTVIFADQIMYTGFAYAARSGASVGIDDMVIPEKKHEIISEAEAEVAEIQ
EQFQSGLVTAGERYNKVIDIWAAANDRVSKAMMDNLQTETVINRDGQEEK
QVSFNSIYMMADSGARGSAAQIRQLAGMRGLMAKPDGSIIETPITANFRE
GLNVLQYFISTHGARKGLADTALKTANSGYLTRRLVDVAQDLVVTEDDCG
THEGIMMTPVIEGGDVKEPLRDRVLGRVTAEDVLKPGTADILVPRNTLLH
EQWCDLLEENSVDAVKVRSVVSCDTDFGVCAHCYGRDLARGHIINKGEAI
GVIAAQSIGEPGTQLTMRSSIQVKNKGSIKLSNVKSVVNSSGKLVITSRN
TELKLIDEFGRTKESYKVPYGAVLAKGDGEQVAGGETVANWDPHTMPVIT
EVSGFVRFTDMIDGQTITRQTDELTGLSSLVVLDSAERTAGGKDLRPALK
IVDAQGNDVLIPGTDMPAQYFLPGKAIVQLEDGVQISSGDTLARIPQTGG
LPRVADLFEARRPKEPAILAEISGIVSFGKETKGKRRLVITPVDGSDPYE
EMIPKWRQLNVFEGERVERGDVISDGPEAPHDILRLRGVHAVTRYIVNEV
QDVYRLQGVKINDKHIEVIVRQMLRKATIVNAGSSDFLEGEQVEYSRVKI
ANRELEANGKVGATYSRDLLGITKASLATESFISAASFQETTRVLTEAAV
AGKRDELRGLKENVIVGRLIPAGTGYAYHQDRMRRR

3D structure

• PDB: 6x26 Structural basis for transcription complex disruption by the Mfd translocase.
• Chain: J
• Resolution: 4.1 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	rna	J	R425 D464	R410 D449
BS02	dna	J	N209 K213 R311 K334 R339 R346 R352 A791 Y795 Q1326 E1327 R1330	N194 K198 R296 K319 R324 R331 R337 A776 Y780 Q1289 E1290 R1293
BS03	dna	J	R47 R1148 K1170	R32 R1111 K1133
BS04	MG	J	D460 D462 D464	D445 D447 D449
BS05	ZN	J	C72 K87 C88	C57 K72 C73
BS06	ZN	J	C814 C888 C895 C898	C799 C873 C880 C883

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
• GO:0006352 DNA-templated transcription initiation
• GO:0006879 intracellular iron ion homeostasis
• GO:0009408 response to heat
• GO:0031564 transcription antitermination
• GO:0032784 regulation of DNA-templated transcription elongation
• GO:0036460 cellular response to cell envelope stress
• GO:0042128 nitrate assimilation
• GO:0044780 bacterial-type flagellum assembly
• GO:0046677 response to antibiotic
• GO:0048870 cell motility
• GO:0071973 bacterial-type flagellum-dependent cell motility
• GO:0090605 submerged biofilm formation
• GO:2000142 regulation of DNA-templated transcription initiation

Cellular Component

• GO:0000345 cytosolic DNA-directed RNA polymerase complex
• GO:0000428 DNA-directed RNA polymerase complex
• GO:0005737 cytoplasm
• GO:0005829 cytosol
• GO:0008023 transcription elongation factor complex
• GO:0016020 membrane

External links

• PDB: RCSB:6x26, PDBe:6x26, PDBj:6x26
• PDBsum: 6x26
• PubMed: 33480355
• UniProt: P0A8T7|RPOC_ECOLI DNA-directed RNA polymerase subunit beta' (Gene Name=rpoC)