Structure of PDB 7mkn Chain D

Receptor sequence

>7mknD (length=1340) Species: 83333 (Escherichia coli K-12)

TEEFDAIKIALASPDMIRSWSFGEVKKPETINYRTFKPERDGLFCARIFG
PVKDYECLCGKYKRLKHRGVICEKCGVEVTQTKVRRERMGHIELASPTAH
IWFLKSLPSRIGLLLDMPLRDIERVLYFESYVVIEGGMTNLERQQILTEE
QYLDALEEFGDEFDAKMGAEAIQALLKSMDLEQECEQLREELNETNSETK
RKKLTKRIKLLEAFVQSGNKPEWMILTVLPVLPPDLRPLVPLDGGRFATS
DLNDLYRRVINRNNRLKRLLDLAAPDIIVRNEKRMLQEAVDALLDNGRRG
RAITGSNKRPLKSLADMIKGKQGRFRQNLLGKRVDYSGRSVITVGPYLRL
HQCGLPKKMALELFKPFIYGKLELRGLATTIKAAKKMVEREEAVVWDILD
EVIREHPVLLNRAPTLHRLGIQAFEPVLIEGKAIQLHPLVCAAYNADFDG
DQMAVHVPLTLEAQLEARALMMSTNNILSPANGEPIIVPSQDVVLGLYYM
TRDCVNAKGEGMVLTGPKEAERLYRSGLASLHARVKVRITEYEKDANGEL
VAKTSLKDTTVGRAILWMIVPKGLPYSIVNQALGKKAISKMLNTCYRILG
LKPTVIFADQIMYTGFAYAARSGASVGIDDMVIPEKKHEIISEAEAEVAE
IQEQFQSGLVTAGERYNKVIDIWAAANDRVSKAMMDNLQTETVINRDGQE
EKQVSFNSIYMMADSGARGSAAQIRQLAGMRGLMAKPDGSIIETPITANF
REGLNVLQYFISTHGARKGLADTALKTANSGYLTRRLVDVAQDLVVTEDD
CGTHEGIMMTPVIEGGDVKEPLRDRVLGRVTAEDVLKPGTADILVPRNTL
LHEQWCDLLEENSVDAVKVRSVVSCDTDFGVCAHCYGRDLARGHIINKGE
AIGVIAAQSIGEPGTQLTAESSIQVKNKGSIKLSNVKSVVNSSGKLVITS
RNTELKLIDEFGRTKESYKVPYGAVLAKGDGEQVAGGETVANWDPHTMPV
ITEVSGFVRFTDMIDGQTITRQTDELTGLSSLVVLDSAERTAGGKDLRPA
LKIVDAQGNDVLIPGTDMPAQYFLPGKAIVQLEDGVQISSGDTLARIPTG
GLPRVADLFEARRPKEPAILAEISGIVSFGKETKGKRRLVITPVDGSDPY
EEMIPKWRQLNVFEGERVERGDVISDGPEAPHDILRLRGVHAVTRYIVNE
VQDVYRLQGVKINDKHIEVIVRQMLRKATIVNAGSSDFLEGEQVEYSRVK
IANRELEANGKVGATYSRDLLGITKASLATESFISAASFQETTRVLTEAA
VAGKRDELRGLKENVIVGRLIPAGTGYAYHQDRMRRRAAG

3D structure

• PDB: 7mkn Structural basis of RNA polymerase recycling by the Swi2/Snf2 family of ATPase RapA in Escherichia coli.
• Chain: D
• Resolution: 3.3 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	R271 R1148	R258 R1112
BS02	rna	D	V253 L255 R322 D462 D464	V240 L242 R309 D449 D451
BS03	dna	D	R259 R311 S319 K334 R339 R352 P427 T790 A791 G794 Y795 E1327 R1330	R246 R298 S306 K321 R326 R339 P414 T777 A778 G781 Y782 E1291 R1294
BS04	MG	D	D460 D462 D464	D447 D449 D451
BS05	ZN	D	C70 C72 C85	C57 C59 C72
BS06	ZN	D	C814 C888 C895 C898	C801 C875 C882 C885
BS07	2TM	D	R425 R731	R412 R718

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:7mkn, PDBe:7mkn, PDBj:7mkn
• PDBsum: 7mkn
• PubMed: 34774797
• UniProt: P0A8T7|RPOC_ECOLI DNA-directed RNA polymerase subunit beta' (Gene Name=rpoC)