Structure of PDB 3cqz Chain A Binding Site BS03

Receptor Information
>3cqz Chain A (length=1349) Species: 4932 (Saccharomyces cerevisiae) [Search protein sequence] [Download receptor structure] [Download structure with residue number starting from 1] [View receptor structure]
YSSAPLRTVKEVQFGLFSPEEVRAISVAKIRFPETAKIGGLNDPRLGSID
RNLKCQTCQEGMNECPGHFGHIDLAKPVFHVGFIAKIKKVCECVCMHCGK
LLLDEHNELMRQALAIKDSKKRFAAIWTLCKTKMVCETDVPSEDDPTQLV
SRGGCGNTQPTIRKDGLKLVGSWKKEPELRVLSTEEILNIFKHISVKDFT
SLGFNEVFSRPEWMILTCLPVPPPPVRPTFKLADILKANISLETLEHNGA
PHHAIEEAESLLQFHVATYMDFSARTVISGDPNLELDQVGVPKSIAKTLT
YPEVVTPYNIDRLTQLVRNGPNEHPGAKYVIRDSGDRIDLRYSKRAGDIQ
LQYGWKVERHIMDNDPVLFNRQPSLHKMSMMAHRVKVIPYSTFRLNLSVT
SPYNADFDGDEMNLHVPQSEETRAELSQLCAVPLQIVSPQSNKPCMGIVQ
DTLCGIRKLTLRDTFIELDQVLNMLYWVPDWDGVIPTPAIIKPKPLWSGK
QILSVAIPNGIHLQRFDEGTTLLSPKDNGMLIIDGQIIFGVVEKKTVGSS
NGGLIHVVTREKGPQVCAKLFGNIQKVVNFWLLHNGFSTGIGDTIADGPT
MREITETIAEAKKKVLDVTKEAQANLLTAKHGMTLRESFEDNVVRFLNEA
RDKAGRLAEVNLKDLNNVKQMVMAGSKGSFINIAQMSACVGQQSVEGKRI
AFGFVDRTLPHFSKDDYSPESKGFVENSYLRGLTPQEFFFHAMGGREGLI
DTAVKTAETGYIQRRLVKALEDIMVHYDNTTRNSLGNVIQFIYGEDGMDA
AHIEKQSLDTIGGSDAAFEKRYRVDLLNTDHTLDPSLLESGSEILGDLKL
QVLLDEEYKQLVKDRKFLREVFVDGEANWPLPVNIRRIIQNAQQTFHIDH
TKPSDLTIKDIVLGVKDLQENLLVLRGKNEIIQNAQRDAVTLFCCLLRSR
LATRRVLQEYRLTKQAFDWVLSNIEAQFLRSVVHPGEMVGVLAAQSIGEP
ATQMTLNTFHFAGVASKKVTSGVPRLKEILNVAKNMKTPSLTVYLEPGHA
ADQEQAKLIRSAIEHTTLKSVTIASEIYYDPDPRSTVIPEDEEIIQLHFS
LLDQQSPWLLRLELDRAAMNDKDLTMGQVGERIKQTFKNDLFVIWSEDND
EKLIIRCRVVEAEEDHMLKKIENTMLENITLRGVENIERVVMMKYDRKVP
SPTGEYVKEPEWVLETDGVNLSEVMTVPGIDPTRIYTNSFIDIMEVLGIE
AGRAALYKEVYNVIASDGSYVNYRHMALLVDVMTTQGGLTSVTRHGMRCS
FEETVEILFEAGASAELDDCRGVSENVILGQMAPIGTGAFDVMIDEESL
Ligand information
Ligand IDZN
InChIInChI=1S/Zn/q+2
InChIKeyPTFCDOFLOPIGGS-UHFFFAOYSA-N
SMILES
SoftwareSMILES
CACTVS 3.341[Zn++]
ACDLabs 10.04
OpenEye OEToolkits 1.5.0		[Zn+2]
FormulaZn
NameZINC ION
ChEMBLCHEMBL1236970
DrugBankDB14532
ZINC
PDB chain3cqz Chain A Residue 3008 [Download ligand structure] [Download structure with residue number starting from 1] [View ligand structure]
Receptor-Ligand Complex Structure
Global viewLocal viewStructure summary

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PDB3cqz The RNA Polymerase II Trigger Loop Functions in Substrate Selection and is Directly Targeted by Alpha-Amanitin.
Resolution2.8 Å
Binding residue
(original residue number in PDB)		C70 C77 H80
Binding residue
(residue number reindexed from 1)		C58 C65 H68
Annotation score1
Enzymatic activity
Catalytic site (original residue number in PDB) D481 D483 D485 H1085
Catalytic site (residue number reindexed from 1) D406 D408 D410 H1010
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

View graph for
Molecular Function
View graph for
Biological Process
View graph for
Cellular Component
External links
PDB RCSB:3cqz, PDBe:3cqz, PDBj:3cqz
PDBsum3cqz
PubMed18538653
UniProtP04050|RPB1_YEAST DNA-directed RNA polymerase II subunit RPB1 (Gene Name=RPO21)

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