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(-) Description

Title :  COCRYSTAL STRUCTURE OF THE FLAGELLAR SIGMA/ANTI-SIGMA COMPLEX, SIGMA-28/FLGM
 
Authors :  M. K. Sorenson, S. S. Ray, S. A. Darst
Date :  02 Dec 03  (Deposition) - 06 Apr 04  (Release) - 24 Feb 09  (Revision)
Method :  X-RAY DIFFRACTION
Resolution :  2.30
Chains :  Asym. Unit :  A,B,C,D,E,F,G,H
Biol. Unit 1:  A,B  (1x)
Biol. Unit 2:  C,D  (1x)
Biol. Unit 3:  E,F  (1x)
Biol. Unit 4:  G,H  (1x)
Keywords :  Transcription, Sigma Factor (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )
 
Reference :  M. K. Sorenson, S. S. Ray, S. A. Darst
Crystal Structure Of The Flagellar Sigma/Anti-Sigma Complex Sigma(28)/Flgm Reveals An Intact Sigma Factor In An Inactive Conformation
Mol. Cell V. 14 127 2004
PubMed-ID: 15068809  |  Reference-DOI: 10.1016/S1097-2765(04)00150-9
(for further references see the PDB file header)

(-) Compounds

Molecule 1 - RNA POLYMERASE SIGMA FACTOR SIGMA-28 (FLIA)
    Chains: A, C, E, G
    Engineered: YES
    Expression System: ESCHERICHIA COLI
    Expression System Taxid: 562
    Expression System Vector: PKMS5
    Expression System Vector Type: PLASMID
    Organism Scientific: AQUIFEX AEOLICUS
    Organism Taxid: 63363
 
Molecule 2 - ANTI SIGMA FACTOR FLGM
    Chains: B, D, F, H
    Engineered: YES
    Expression System: ESCHERICHIA COLI
    Expression System Taxid: 562
    Expression System Vector: PKMS5
    Expression System Vector Type: PLASMID
    Organism Scientific: AQUIFEX AEOLICUS
    Organism Taxid: 63363

 Structural Features

(-) Chains, Units

  12345678
Asymmetric Unit : ABCDEFGH
Biological Unit 1 (1x): AB      
Biological Unit 2 (1x):   CD    
Biological Unit 3 (1x):     EF  
Biological Unit 4 (1x):       GH

Summary Information (see also Sequences/Alignments below)

(-) Ligands, Modified Residues, Ions  (0, 0)

(no "Ligand,Modified Residues,Ions" information available for 1RP3)

(-) Sites  (0, 0)

(no "Site" information available for 1RP3)

(-) SS Bonds  (0, 0)

(no "SS Bond" information available for 1RP3)

(-) Cis Peptide Bonds  (0, 0)

(no "Cis Peptide Bond" information available for 1RP3)

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (0, 0)

(no "SAP(SNP)/Variant" information available for 1RP3)

(-) PROSITE Motifs  (0, 0)

(no "PROSITE Motif" information available for 1RP3)

(-) Exons   (0, 0)

(no "Exon" information available for 1RP3)

(-) Sequences/Alignments

Asymmetric Unit
   Reformat: Number of residues per line =  ('0' or empty: single-line sequence representation)
  Number of residues per labelling interval =   
  UniProt sequence: complete  aligned part    
   Show mapping: SCOP domains CATH domains Pfam domains Secondary structure (by author)
SAPs(SNPs) PROSITE motifs Exons
(details for a mapped element are shown in a popup box when the mouse pointer rests over it) 
Chain A from PDB  Type:PROTEIN  Length:235
 aligned with O67268_AQUAE | O67268 from UniProtKB/TrEMBL  Length:236

    Alignment length:235
                             1                                                                                                                                                                                                                                         
                             |       9        19        29        39        49        59        69        79        89        99       109       119       129       139       149       159       169       179       189       199       209       219       229     
         O67268_AQUAE     - -MKNPYSNQIEREELILKYLPLVKAIATNIKKHLPEDVDIRDLISYGVIGLIKAVDNLSTENPKRAEAYIKLRIKGAIYDYLRSLDFGSRQVREKERRIKEVVEKLKEKLGREPTDEEVAKELGISTEELFKTLDKINFSYILSLEEVFRDFARDYSELIPSSTNVEEEVIKRELTEKVKEAVSKLPEREKLVIQLIFYEELPAKEVAKILETSVSRVSQLKAKALERLREMLSN 234
               SCOP domains d1rp3a3 A:0-86 Sigma factor sigma-28 (FliA)                                            d1rp3a1 A:87-163 Sigma factor sigma-28 (FliA)                                d1rp3a2 A:164-234 Sigma factor sigma-28 (FliA)                          SCOP domains
               CATH domains ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- CATH domains
               Pfam domains ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ...hhhhhhhhhhhhhhhhhhhhhhhhhhhhh......hhhhhhhhhhhhhhhhhhh.....hhhhhhhhhhhhhhhhhhhhhh....hhhhhhhhhhhhhhhhhhhhhhh...hhhhhhhhhh.hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh...hhhhhhhhhhhhhhhhhhhhh..hhhhhhhhhhhhh...hhhhhhhhhh.hhhhhhhhhhhhhhhhhhhhhh Sec.struct. author
                 SAPs(SNPs) ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 1rp3 A   0 HMKNPYSNQIEREELILKYLPLVKAIATNIKKHLPEDVDIRDLISYGVIGLIKAVDNLSTENPKRAEAYIKLRIKGAIYDYLRSLDFGSRQVREKERRIKEVVEKLKEKLGREPTDEEVAKELGISTEELFKTLDKINFSYILSLEEVFRDFARDYSELIPSSTNVEEEVIKRELTEKVKEAVSKLPEREKLVIQLIFYEELPAKEVAKILETSVSRVSQLKAKALERLREMLSN 234
                                     9        19        29        39        49        59        69        79        89        99       109       119       129       139       149       159       169       179       189       199       209       219       229     


Chain B from PDB  Type:PROTEIN  Length:77
 aligned with O66683_AQUAE | O66683 from UniProtKB/TrEMBL  Length:88

    Alignment length:87
                                    11        21        31        41        51        61        71        81       
         O66683_AQUAE     2 VNRIELSRLIGLLLETEKRKNTEQKESGTNKIEDKVTLSKIAQELSKNDVEEKDLEKKVKELKEKIEKGEYEVSDEKVVKGLIEFFT  88
               SCOP domains d1rp3b_ B: Anti-          sigma factor FlgM                                             SCOP domains
               CATH domains --------------------------------------------------------------------------------------- CATH domains
               Pfam domains --------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ..hhhhhhhhhhhhhh----------..hhhhhhhhhhhhhhhhhh.......hhhhhhhhhhhhhhh.....hhhhhhhhhhhhhh Sec.struct. author
                 SAPs(SNPs) --------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE --------------------------------------------------------------------------------------- PROSITE
                 Transcript --------------------------------------------------------------------------------------- Transcript
                 1rp3 B   2 VNRIELSRLIGLLLET----------SGTNKIEDKVTLSKIAQELSKNDVEEKDLEKKVKELKEKIEKGEYEVSDEKVVKGLIEFFT  88
                                    11     |   -      | 31        41        51        61        71        81       
                                          17         28                                                            


Chain C from PDB  Type:PROTEIN  Length:234
 aligned with O67268_AQUAE | O67268 from UniProtKB/TrEMBL  Length:236

    Alignment length:234
                                    11        21        31        41        51        61        71        81        91       101       111       121       131       141       151       161       171       181       191       201       211       221       231    
         O67268_AQUAE     2 KNPYSNQIEREELILKYLPLVKAIATNIKKHLPEDVDIRDLISYGVIGLIKAVDNLSTENPKRAEAYIKLRIKGAIYDYLRSLDFGSRQVREKERRIKEVVEKLKEKLGREPTDEEVAKELGISTEELFKTLDKINFSYILSLEEVFRDFARDYSELIPSSTNVEEEVIKRELTEKVKEAVSKLPEREKLVIQLIFYEELPAKEVAKILETSVSRVSQLKAKALERLREMLSNP 235
               SCOP domains d1rp3c3 C:2-86 Sigma factor sigma-28 (FliA)                                          d1rp3c1 C:87-163 Sigma factor sigma-28 (FliA)                                d1rp3c2 C:164-235 Sigma factor sigma-28 (FliA)                           SCOP domains
               CATH domains ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ CATH domains
               Pfam domains ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ Pfam domains
         Sec.struct. author .hhhhhhhhhhhhhhhhhhhhhhhhhhhhh......hhhhhhhhhhhhhhhhhhh....hhhhhhhhhhhhhhhhhhhhhhh....hhhhhhhhhhhhhhhhhhhhhhh...hhhhhhhhhh.hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh.......hhhhhhhhhhhhhhhhhhhhh.hhhhhhhhhhhhh...hhhhhhhhhh.hhhhhhhhhhhhhhhhhhhhhh. Sec.struct. author
                 SAPs(SNPs) ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ SAPs(SNPs)
                    PROSITE ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ PROSITE
                 Transcript ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ Transcript
                 1rp3 C   2 KNPYSNQIEREELILKYLPLVKAIATNIKKHLPEDVDIRDLISYGVIGLIKAVDNLSTENPKRAEAYIKLRIKGAIYDYLRSLDFGSRQVREKERRIKEVVEKLKEKLGREPTDEEVAKELGISTEELFKTLDKINFSYILSLEEVFRDFARDYSELIPSSTNVEEEVIKRELTEKVKEAVSKLPEREKLVIQLIFYEELPAKEVAKILETSVSRVSQLKAKALERLREMLSNP 235
                                    11        21        31        41        51        61        71        81        91       101       111       121       131       141       151       161       171       181       191       201       211       221       231    


Chain D from PDB  Type:PROTEIN  Length:70
 aligned with O66683_AQUAE | O66683 from UniProtKB/TrEMBL  Length:88

    Alignment length:86
                                    12        22        32        42        52        62        72        82      
         O66683_AQUAE     3 NRIELSRLIGLLLETEKRKNTEQKESGTNKIEDKVTLSKIAQELSKNDVEEKDLEKKVKELKEKIEKGEYEVSDEKVVKGLIEFFT  88
               SCOP domains d1rp3d_ D: Anti-                sigma factor FlgM                                      SCOP domains
               CATH domains -------------------------------------------------------------------------------------- CATH domains
               Pfam domains -------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author hhhhhhhhhhhhhhh.----------------hhhhhhhhhhhhhh.hhhhhhhhhhhhhhhhhhhh.....hhhhhhhhhhhhhh Sec.struct. author
                 SAPs(SNPs) -------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE -------------------------------------------------------------------------------------- PROSITE
                 Transcript -------------------------------------------------------------------------------------- Transcript
                 1rp3 D   3 NRIELSRLIGLLLETE----------------DKVTLSKIAQELSKNDVEEKDLEKKVKELKEKIEKGEYEVSDEKVVKGLIEFFT  88
                                    12     |   -         -  |     42        52        62        72        82      
                                          18               35                                                     


Chain E from PDB  Type:PROTEIN  Length:235
 aligned with O67268_AQUAE | O67268 from UniProtKB/TrEMBL  Length:236

    Alignment length:235
                                    11        21        31        41        51        61        71        81        91       101       111       121       131       141       151       161       171       181       191       201       211       221       231     
         O67268_AQUAE     2 KNPYSNQIEREELILKYLPLVKAIATNIKKHLPEDVDIRDLISYGVIGLIKAVDNLSTENPKRAEAYIKLRIKGAIYDYLRSLDFGSRQVREKERRIKEVVEKLKEKLGREPTDEEVAKELGISTEELFKTLDKINFSYILSLEEVFRDFARDYSELIPSSTNVEEEVIKRELTEKVKEAVSKLPEREKLVIQLIFYEELPAKEVAKILETSVSRVSQLKAKALERLREMLSNPL 236
               SCOP domains d1rp3e3 E:2-86 Sigma factor sigma-28 (FliA)                                          d1rp3e1 E:87-163 Sigma factor sigma-28 (FliA)                                d1rp3e2 E:164-236 Sigma factor sigma-28 (FliA)                            SCOP domains
               CATH domains ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- CATH domains
               Pfam domains ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author .hhhhhhhhhhhhhhhhhhhhhhhhhhhhh......hhhhhhhhhhhhhhhhhhhh...hhhhhhhhhhhhhhhhhhhhhhh....hhhhhhhhhhhhhhhhhhhhhhh...hhhhhhhhhh.hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh.....hhhhhhhhhhhhhhhhhhhhh.hhhhhhhhhhhhh...hhhhhhhhhh.hhhhhhhhhhhhhhhhhhhhhh.. Sec.struct. author
                 SAPs(SNPs) ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 1rp3 E   2 KNPYSNQIEREELILKYLPLVKAIATNIKKHLPEDVDIRDLISYGVIGLIKAVDNLSTENPKRAEAYIKLRIKGAIYDYLRSLDFGSRQVREKERRIKEVVEKLKEKLGREPTDEEVAKELGISTEELFKTLDKINFSYILSLEEVFRDFARDYSELIPSSTNVEEEVIKRELTEKVKEAVSKLPEREKLVIQLIFYEELPAKEVAKILETSVSRVSQLKAKALERLREMLSNPL 236
                                    11        21        31        41        51        61        71        81        91       101       111       121       131       141       151       161       171       181       191       201       211       221       231     


Chain F from PDB  Type:PROTEIN  Length:64
 aligned with O66683_AQUAE | O66683 from UniProtKB/TrEMBL  Length:88

    Alignment length:85
                                    13        23        33        43        53        63        73        83     
         O66683_AQUAE     4 RIELSRLIGLLLETEKRKNTEQKESGTNKIEDKVTLSKIAQELSKNDVEEKDLEKKVKELKEKIEKGEYEVSDEKVVKGLIEFFT  88
               SCOP domains d1rp3f_ F: Ant                 i-sigma factor F    lgM                                SCOP domains
               CATH domains ------------------------------------------------------------------------------------- CATH domains
               Pfam domains ------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author hhhhhhhhhhhhhh-----------------hhhhhhhhhhhhhh..----hhhhhhhhhhhhhhh.....hhhhhhhhhhhhhh Sec.struct. author
                 SAPs(SNPs) ------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ------------------------------------------------------------------------------------- PROSITE
                 Transcript ------------------------------------------------------------------------------------- Transcript
                 1rp3 F   4 RIELSRLIGLLLET-----------------DKVTLSKIAQELSKND----DLEKKVKELKEKIEKGEYEVSDEKVVKGLIEFFT  88
                                    13   |     -         - |      43      |  - |      63        73        83     
                                        17                35             50   55                                 


Chain G from PDB  Type:PROTEIN  Length:226
 aligned with O67268_AQUAE | O67268 from UniProtKB/TrEMBL  Length:236

    Alignment length:236
                                    10        20        30        40        50        60        70        80        90       100       110       120       130       140       150       160       170       180       190       200       210       220       230      
         O67268_AQUAE     1 MKNPYSNQIEREELILKYLPLVKAIATNIKKHLPEDVDIRDLISYGVIGLIKAVDNLSTENPKRAEAYIKLRIKGAIYDYLRSLDFGSRQVREKERRIKEVVEKLKEKLGREPTDEEVAKELGISTEELFKTLDKINFSYILSLEEVFRDFARDYSELIPSSTNVEEEVIKRELTEKVKEAVSKLPEREKLVIQLIFYEELPAKEVAKILETSVSRVSQLKAKALERLREMLSNPL 236
               SCOP domains d1rp3g3 G:1-86 Sigma factor sigma-28 (FliA)                                           d1rp3g1 G:87-156 Sigma factor sigma-28 (FliA)                         ----------d1rp3g2 G:167-236 Sigma factor sigma-28 (FliA)                         SCOP domains
               CATH domains -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- CATH domains
           Pfam domains (1) -------------Sigma70_r2-1rp3G01 G:14-86                                               ------Sigma70_r3-1rp3G05 G:93-168                                                 ------------Sigma70_r4-1rp3G09 G:181-230                      ------ Pfam domains (1)
           Pfam domains (2) -------------Sigma70_r2-1rp3G02 G:14-86                                               ------Sigma70_r3-1rp3G06 G:93-168                                                 ------------Sigma70_r4-1rp3G10 G:181-230                      ------ Pfam domains (2)
           Pfam domains (3) -------------Sigma70_r2-1rp3G03 G:14-86                                               ------Sigma70_r3-1rp3G07 G:93-168                                                 ------------Sigma70_r4-1rp3G11 G:181-230                      ------ Pfam domains (3)
           Pfam domains (4) -------------Sigma70_r2-1rp3G04 G:14-86                                               ------Sigma70_r3-1rp3G08 G:93-168                                                 ------------Sigma70_r4-1rp3G12 G:181-230                      ------ Pfam domains (4)
         Sec.struct. author ..hhhhhhhhhhhhhhhhhhhhhhhhhhhhh......hhhhhhhhhhhhhhhhhhhh...hhhhhhhhhhhhhhhhhhhhhhh....hhhhhhhhhhhhhhhhhhhhhhh...hhhhhhhhhh.hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh----------.hhhhhhhhhhhhhhhhh.hhhhhhhhhhhhh...hhhhhhhhhh.hhhhhhhhhhhhhhhhhhhhhh.. Sec.struct. author
                 SAPs(SNPs) -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 1rp3 G   1 MKNPYSNQIEREELILKYLPLVKAIATNIKKHLPEDVDIRDLISYGVIGLIKAVDNLSTENPKRAEAYIKLRIKGAIYDYLRSLDFGSRQVREKERRIKEVVEKLKEKLGREPTDEEVAKELGISTEELFKTLDKINFSYILSLEEVFRDFARDYS----------EEVIKRELTEKVKEAVSKLPEREKLVIQLIFYEELPAKEVAKILETSVSRVSQLKAKALERLREMLSNPL 236
                                    10        20        30        40        50        60        70        80        90       100       110       120       130       140       150     |   -      |170       180       190       200       210       220       230      
                                                                                                                                                                                     156        167                                                                     


Chain H from PDB  Type:PROTEIN  Length:70
 aligned with O66683_AQUAE | O66683 from UniProtKB/TrEMBL  Length:88

    Alignment length:88
                                    10        20        30        40        50        60        70        80        
         O66683_AQUAE     1 MVNRIELSRLIGLLLETEKRKNTEQKESGTNKIEDKVTLSKIAQELSKNDVEEKDLEKKVKELKEKIEKGEYEVSDEKVVKGLIEFFT  88
               SCOP domains d1rp3h_ H: Anti-sigma              factor FlgM                                           SCOP domains
               CATH domains ---------------------------------------------------------------------------------------- CATH domains
           Pfam domains (1) ---------------------             FlgM-1rp3H01 H:     35-87                            - Pfam domains (1)
           Pfam domains (2) ---------------------             FlgM-1rp3H02 H:     35-87                            - Pfam domains (2)
           Pfam domains (3) ---------------------             FlgM-1rp3H03 H:     35-87                            - Pfam domains (3)
           Pfam domains (4) ---------------------             FlgM-1rp3H04 H:     35-87                            - Pfam domains (4)
         Sec.struct. author ..hhhhhhhhhhhhhhhh...-------------hhhhhhhhhhhhh..-----hhhhhhhhhhhhhhhh....hhhhhhhhhhhhhh Sec.struct. author
                 SAPs(SNPs) ---------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ---------------------------------------------------------------------------------------- PROSITE
                 Transcript ---------------------------------------------------------------------------------------- Transcript
                 1rp3 H   1 MVNRIELSRLIGLLLETEKRK-------------DKVTLSKIAQELSKN-----DLEKKVKELKEKIEKGEYEVSDEKVVKGLIEFFT  88
                                    10        20|        -    |   40        |-    |   60        70        80        
                                               21            35            49    55
   Legend:   → Mismatch (orange background)
  - → Gap (green background, '-', border residues have a numbering label)
    → Modified Residue (blue background, lower-case, 'x' indicates undefined single-letter code, labelled with number + name)
  x → Chemical Group (purple background, 'x', labelled with number + name, e.g. ACE or NH2)
  extra numbering lines below/above indicate numbering irregularities and modified residue names etc., number ends below/above '|'

 Classification and Annotation

(-) SCOP Domains  (4, 16)

Asymmetric Unit
(-)
Class: All alpha proteins (14657)

(-) CATH Domains  (0, 0)

(no "CATH Domain" information available for 1RP3)

(-) Pfam Domains  (4, 16)

Asymmetric Unit
(-)
Clan: HTH (544)
(-)
Clan: no clan defined [family: FlgM] (2)
(-)
Family: FlgM (2)
(-)
Aquifex aeolicus (2)
4aFlgM-1rp3H01H:35-87
4bFlgM-1rp3H02H:35-87
4cFlgM-1rp3H03H:35-87
4dFlgM-1rp3H04H:35-87

(-) Gene Ontology  (9, 9)

Asymmetric Unit(hide GO term definitions)
Chain A,C,E,G   (O67268_AQUAE | O67268)
molecular function
    GO:0003677    DNA binding    Any molecular function by which a gene product interacts selectively and non-covalently with DNA (deoxyribonucleic acid).
    GO:0003899    DNA-directed 5'-3' RNA polymerase activity    Catalysis of the reaction: nucleoside triphosphate + RNA(n) = diphosphate + RNA(n+1). Utilizes a DNA template, i.e. the catalysis of DNA-template-directed extension of the 3'-end of an RNA strand by one nucleotide at a time. Can initiate a chain 'de novo'.
    GO:0016987    sigma factor activity    A sigma factor is the promoter specificity subunit of eubacterial-type multisubunit RNA polymerases, those whose core subunit composition is often described as alpha(2)-beta-beta-prime. (This type of multisubunit RNA polymerase complex is known to be found in eubacteria and plant plastids). Although sigma does not bind DNA on its own, when combined with the core to form the holoenzyme, this binds specifically to promoter sequences, with the sigma factor making sequence specific contacts with the promoter elements. The sigma subunit is released from the elongating form of the polymerase and is thus free to act catalytically for multiple RNA polymerase core enzymes.
    GO:0003700    transcription factor activity, sequence-specific DNA binding    Interacting selectively and non-covalently with a specific DNA sequence in order to modulate transcription. The transcription factor may or may not also interact selectively with a protein or macromolecular complex.
biological process
    GO:0006352    DNA-templated transcription, initiation    Any process involved in the assembly of the RNA polymerase preinitiation complex (PIC) at the core promoter region of a DNA template, resulting in the subsequent synthesis of RNA from that promoter. The initiation phase includes PIC assembly and the formation of the first few bonds in the RNA chain, including abortive initiation, which occurs when the first few nucleotides are repeatedly synthesized and then released. The initiation phase ends just before and does not include promoter clearance, or release, which is the transition between the initiation and elongation phases of transcription.
    GO:0006355    regulation of transcription, DNA-templated    Any process that modulates the frequency, rate or extent of cellular DNA-templated transcription.
    GO:0030435    sporulation resulting in formation of a cellular spore    The process in which a relatively unspecialized cell acquires the specialized features of a cellular spore, a cell form that can be used for dissemination, for survival of adverse conditions because of its heat and dessication resistance, and/or for reproduction.
    GO:0006351    transcription, DNA-templated    The cellular synthesis of RNA on a template of DNA.

Chain B,D,F,H   (O66683_AQUAE | O66683)
biological process
    GO:0045892    negative regulation of transcription, DNA-templated    Any process that stops, prevents, or reduces the frequency, rate or extent of cellular DNA-templated transcription.

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  1rp3
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  O66683_AQUAE | O66683
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  O67268_AQUAE | O67268
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 Related Entries

(-) Entries Sharing at Least One Protein Chain (UniProt ID)

UniProtKB/TrEMBL
        O66683_AQUAE | O66683: 1sc5
        O67268_AQUAE | O67268: 1sc5

(-) Related Entries Specified in the PDB File

(no "Related Entries Specified in the PDB File" available for 1RP3)