Structure of PDB 2b63 Chain A Binding Site BS01

Receptor Information
>2b63 Chain A (length=1416) Species: 4932 (Saccharomyces cerevisiae) [Search protein sequence] [Download receptor structure] [Download structure with residue number starting from 1] [View receptor structure]
VGQQYSSAPLRTVKEVQFGLFSPEEVRAISVAKIRFPETMDETQTRAKIG
GLNDPRLGSIDRNLKCQTCQEGMNECPGHFGHIDLAKPVFHVGFIAKIKK
VCECVCMHCGKLLLDEHNELMRQALAIKDSKKRFAAIWTLCKTKMVCETD
VPSEDDPTQLVSRGGCGNTQPTIRKDGLKLVGSWKDEPELRVLSTEEILN
IFKHISVKDFTSLGFNEVFSRPEWMILTCLPVPPPPVRPSISFNESQRGE
DDLTFKLADILKANISLETLEHNGAPHHAIEEAESLLQFHVATYMDNDIA
GQPQALQKSGRPVKSIRARLKGKEGRIRGNLMGKRVDFSARTVISGDPNL
ELDQVGVPKSIAKTLTYPEVVTPYNIDRLTQLVRNGPNEHPGAKYVIRDS
GDRIDLRYSKRAGDIQLQYGWKVERHIMDNDPVLFNRQPSLHKMSMMAHR
VKVIPYSTFRLNLSVTSPYNADFDGDEMNLHVPQSEETRAELSQLCAVPL
QIVSPQSNKPCMGIVQDTLCGIRKLTLRDTFIELDQVLNMLYWVPDWDGV
IPTPAIIKPKPLWSGKQILSVAIPNGIHLQRFDEGTTLLSPKDNGMLIID
GQIIFGVVEKKTVGSSNGGLIHVVTREKGPQVCAKLFGNIQKVVNFWLLH
NGFSTGIGDTIADGPTMREITETIAEAKKKVLDVTKEAQANLLTAKHGMT
LRESFEDNVVRFLNEARDKAGRLAEVNLKDLNNVKQMVMAGSKGSFINIA
QMSACVGQQSVEGKRIAFGFVDRTLPHFSKDDYSPESKGFVENSYLRGLT
PQEFFFHAMGGREGLIDTAVKTAETGYIQRRLVKALEDIMVHYDNTTRNS
LGNVIQFIYGEDGMDAAHIEKQSLDTIGGSDAAFEKRYRVDLLNTDHTLD
PSLLESGSEILGDLKLQVLLDEEYKQLVKDRKFLREVFVDGEANWPLPVN
IRRIIQNAQQTFHIDHTKPSDLTIKDIVLGVKDLQENLLVLRGKNEIIQN
AQRDAVTLFCCLLRSRLATRRVLQEYRLTKQAFDWVLSNIEAQFLRSVVH
PGEMVGVLAAQSIGEPATQMTLKKVTSGVPRLKEILNVAKNMKTPSLTVY
LEPGHAADQEQAKLIRSAIEHTTLKSVTIASEIYYDPDPRSTVIPEDEEI
IQLHFSLQQSPWLLRLELDRAAMNDKDLTMGQVGERIKQTFKNDLFVIWS
EDNDEKLIIRCRVVAEEDHMLKKIENTMLENITLRGVENIERVVMMKYDR
KVPSPTGEYVKEPEWVLETDGVNLSEVMTVPGIDPTRIYTNSFIDIMEVL
GIEAGRAALYKEVYNVIASDGSYVNYRHMALLVDVMTTQGGLTSVTRHGF
NRSNTGALMRCSFEETVEILFEAGASAELDDCRGVSENVILGQMAPIGTG
AFDVMIDEESLVKYMP
Ligand information
>2b63 Chain R (length=31) [Search RNA sequence] [Download ligand structure] [Download structure with residue number starting from 1] [View ligand structure]
cagcacugauugcggucgagguagcuugaug
..<<<.....>>>.<<<<<<....>>>>>>.
Receptor-Ligand Complex Structure
Global viewLocal viewStructure summary

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PDB2b63 Structure of an RNA polymerase II-RNA inhibitor complex elucidates transcription regulation by noncoding RNAs
Resolution3.8 Å
Binding residue
(original residue number in PDB)		Q316 S318 R320 K323 K332 R337 E833 R1386 E1403
Binding residue
(residue number reindexed from 1)		Q307 S309 R311 K314 K323 R328 E824 R1347 E1364
Binding affinityPDBbind-CN: Kd=33nM
Enzymatic activity
Catalytic site (original residue number in PDB) D481 D483 D485
Catalytic site (residue number reindexed from 1) D472 D474 D476
Enzyme Commision number 2.7.7.6: DNA-directed RNA polymerase.
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
View graph for
Cellular Component
External links
PDB RCSB:2b63, PDBe:2b63, PDBj:2b63
PDBsum2b63
PubMed16341226
UniProtP04050|RPB1_YEAST DNA-directed RNA polymerase II subunit RPB1 (Gene Name=RPO21)

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