Structure of PDB 4a3i Chain A

Receptor sequence
>4a3iA (length=1422) Species: 4932 (Saccharomyces cerevisiae) [Search protein sequence]
GQQYSSAPLRTVKEVQFGLFSPEEVRAISVAKIRFPETMDETQTRAKIGG
LNDPRLGSIDRNLKCQTCQEGMNECPGHFGHIDLAKPVFHVGFIAKIKKV
CECVCMHCGKLLLDEHNELMRQALAIKDSKKRFAAIWTLCKTKMVCETDV
PSEDDPTQLVSRGGCGNTQPTIRKDGLKLVGSWKKDRATGDADEPELRVL
STEEILNIFKHISVKDFTSLGFNEVFSRPEWMILTCLPVPPPPVRPSISF
NESQRGEDDLTFKLADILKANISLETLEHNGAPHHAIEEAESLLQFHVAT
YMDNDIAGQPQALQKSGRPVKSIRARLKGKEGRIRGNLMGKRVDFSARTV
ISGDPNLELDQVGVPKSIAKTLTYPEVVTPYNIDRLTQLVRNGPNEHPGA
KYVIRDSGDRIDLRYSKRAGDIQLQYGWKVERHIMDNDPVLFNRQPSLHK
MSMMAHRVKVIPYSTFRLNLSVTSPYNADFDGDEMNLHVPQSEETRAELS
QLCAVPLQIVSPQSNKPCMGIVQDTLCGIRKLTLRDTFIELDQVLNMLYW
VPDWDGVIPTPAIIKPKPLWSGKQILSVAIPNGIHLQRFDEGTTLLSPKD
NGMLIIDGQIIFGVVEKKTVGSSNGGLIHVVTREKGPQVCAKLFGNIQKV
VNFWLLHNGFSTGIGDTIADGPTMREITETIAEAKKKVLDVTKEAQANLL
TAKHGMTLRESFEDNVVRFLNEARDKAGRLAEVNLKDLNNVKQMVMAGSK
GSFINIAQMSACVGQQSVEGKRIAFGFVDRTLPHFSKDDYSPESKGFVEN
SYLRGLTPQEFFFHAMGGREGLIDTAVKTAETGYIQRRLVKALEDIMVHY
DNTTRNSLGNVIQFIYGEDGMDAAHIEKQSLDTIGGSDAAFEKRYRVDLL
NTDHTLDPSLLESGSEILGDLKLQVLLDEEYKQLVKDRKFLREVFVDGEA
NWPLPVNIRRIIQNAQQTFHIDHTKPSDLTIKDIVLGVKDLQENLLVLRG
KNEIIQNAQRDAVTLFCCLLRSRLATRRVLQEYRLTKQAFDWVLSNIEAQ
FLRSVVHPGEMVGVLAAQSIGEPATQMTKKVTSGVPRLKEILNVAKNMKT
PSLTVYLEPGHAADQEQAKLIRSAIEHTTLKSVTIASEIYYDPDPRSTVI
PEDEEIIQLHFSLQQSPWLLRLELDRAAMNDKDLTMGQVGERIKQTFKND
LFVIWSEDNDEKLIIRCRVVAEEDHMLKKIENTMLENITLRGVENIERVV
MMKYDRKVPSPTGEYVKEPEWVLETDGVNLSEVMTVPGIDPTRIYTNSFI
DIMEVLGIEAGRAALYKEVYNVIASDGSYVNYRHMALLVDVMTTQGGLTS
VTRHGFNRSNTGALMRCSFEETVEILFEAGASAELDDCRGVSENVILGQM
APIGTGAFDVMIDEESLVKYMP
3D structure
PDB4a3i Structural basis of initial RNA polymerase II transcription.
ChainA
Resolution3.8 Å
3D
structure
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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 A K101 W139 A1108 K99 W137 A1095
BS02 dna A K332 R337 R344 A832 G835 R1386 E1403 K330 R335 R342 A830 G833 R1353 E1370
BS03 ZN A C107 C110 C148 C167 C105 C108 C146 C165
BS04 ZN A C67 C77 H80 C65 C75 H78
BS05 MG A D481 D483 D485 D479 D481 D483
Gene Ontology
Molecular Function
GO:0001055 RNA polymerase II activity
GO:0003677 DNA binding
GO:0003899 DNA-directed 5'-3' RNA polymerase activity
GO:0003968 RNA-dependent 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:0001172 RNA-templated transcription
GO:0006351 DNA-templated transcription
GO:0006366 transcription by RNA polymerase II
GO:0006367 transcription initiation at RNA polymerase II promoter
GO:0006368 transcription elongation by RNA polymerase II
GO:0019985 translesion synthesis
Cellular Component
GO:0000428 DNA-directed RNA polymerase complex
GO:0005634 nucleus
GO:0005665 RNA polymerase II, core complex
GO:0005739 mitochondrion
GO:0010494 cytoplasmic stress granule

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Molecular Function
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Biological Process
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Cellular Component
External links
PDB RCSB:4a3i, PDBe:4a3i, PDBj:4a3i
PDBsum4a3i
PubMed22056778
UniProtP04050|RPB1_YEAST DNA-directed RNA polymerase II subunit RPB1 (Gene Name=RPO21)

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