Structure of PDB 3gtk Chain A

Receptor sequence
>3gtkA (length=1442) 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
FLRSVVHPGEMVGVLAAQSIGEPATQMTLNTFHFAGVASKKVTSGVPRLK
EILNVAKNMKTPSLTVYLEPGHAADQEQAKLIRSAIEHTTLKSVTIASEI
YYDPDPRSTVIPEDEEIIQLHFSLLDEQQSPWLLRLELDRAAMNDKDLTM
GQVGERIKQTFKNDLFVIWSEDNDEKLIIRCRVVRPKSLDAETEAEEDHM
LKKIENTMLENITLRGVENIERVVMMKYDRKVPSPTGEYVKEPEWVLETD
GVNLSEVMTVPGIDPTRIYTNSFIDIMEVLGIEAGRAALYKEVYNVIASD
GSYVNYRHMALLVDVMTTQGGLTSVTRHGFNRSNTGALMRCSFEETVEIL
FEAGASAELDDCRGVSENVILGQMAPIGTGAFDVMIDEESLV
3D structure
PDB3gtk Structural basis of transcription: backtracked RNA polymerase II at 3.4 angstrom resolution.
ChainA
Resolution3.8 Å
3D
structure
Catalytic site residues are labeled in the structure
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Enzymatic activity
Catalytic site (original residue number in PDB) D481 D483 D485 H1085
Catalytic site (residue number reindexed from 1) D479 D481 D483 H1083
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 A D483 D485 K752 T827 L1081 D481 D483 K750 T825 L1079
BS02 dna A Q256 F264 K317 R337 R344 R350 A832 G835 R1386 E1404 Q254 F262 K315 R335 R342 R348 A830 G833 R1377 E1395
BS03 ZN A C107 C148 C167 C105 C146 C165
BS04 ZN A C67 C70 C77 H80 C65 C68 C75 H78
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:3gtk, PDBe:3gtk, PDBj:3gtk
PDBsum3gtk
PubMed19478184
UniProtP04050|RPB1_YEAST DNA-directed RNA polymerase II subunit RPB1 (Gene Name=RPO21)

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