3GLF: Ecoli Clamp Loader

Crystal Structure of the Ecoli Clamp Loader Bound to Primer-Template DNA. Determined by X-ray diffraction at 3.39 Å resolution. Released 26 May 2009.

Method

X-ray diffraction

Resolution

3.39 Å

Organism

Escherichia coli

Chains

14

Atoms

28,758

Mol. weight

434.03 kDa

Ligands

BEF, ZN, MG, ADP

Released

26 May 2009

Explore 3GLF in 3D Show helices and sheets RCSB PDB PDBe

Secondary structure: helices and β-sheets

3GLF contains 228 α-helices and 78 β-strands across 10 chains. Residue ranges use author residue numbering, as in the PDB file, from PDBe. To see them in 3D, choose the Cartoon representation with Secondary structure coloring: helices, sheets and coils get different colors.

Chain A: 18 helices, 9 β-strands

2 more chain groups are not listed. Open the entry in the viewer and use the sequence panel to see them.

Molecules and chains

>3GLF_1 DNA polymerase III subunit delta (chains A, F)
MIRLYPEQLRAQLNEGLRAAYLLLGNDPLLLQESQDAVRQVAAAQGFEEHHTFSIDPNTD
WNAIFSLCQAMSLFASRQTLLLLLPENGPNAAINEQLLTLTGLLHDDLLLIVRGNKLSKA
QENAAWFTALANRSVQVTCQTPEQAQLPRWVAARAKQLNLELDDAANQVLCYCYEGNLLA
LAQALERLSLLWPDGKLTLPRVEQAVNDAAHFTPFHWVDALLMGKSKRALHILQQLRLEG
SEPVILLRTLQRELLLLVNLKRQSAHTPLRALFDKHRVWQNRRGMMGEALNRLSQTQLRQ
AVQLLTRTELTLKQDYGQSVWAELEGLSLLLCHKPLADVFIDG

>3GLF_2 DNA polymerase III subunit tau (chains B, C, D, G, H, I)
MGSSHHHHHHSSGLEVLFQGPHMSYQVLARKWRPQTFADVVGQEHVLTALANGLSLGRIH
HAYLFSGTRGVGKTSIARLLAKGLNCETGITATPCGVCDNCREIEQGRFVDLIEIDAASR
TKVEDTRDLLDNVQYAPARGRFKVYLIDEVHMLSRHSFNALLKTLEEPPEHVKFLLATTD
PQKLPVTILSRCLQFHLKALDVEQIRHQLEHILNEEHIAHEPRALQLLARAAEGSLRDAL
SLTDQAIASGDGQVSTQAVSAMLGTLDDDQALSLVEAMVEANGERVMALINEAAARGIEW
EALLVEMLGLLHRIAMVQLSPAALGNDMAAIELRMRELARTIPPTDIQLYYQTLLIGRKE
LPYAPDRRMGVEMTLLRALAFHPRMPLPEPEVPRQ

>3GLF_3 DNA polymerase III subunit delta' (chains E, J)
MRWYPWLRPDFEKLVASYQAGRGHHALLIQALPGMGDDALIYALSRYLLCQQPQGHKSCG
HCRGCQLMQAGTHPDYYTLAPEKGKNTLGVDAVREVTEKLNEHARLGGAKVVWVTDAALL
TDAAANALLKTLEEPPAETWFFLATREPERLLATLRSRCRLHYLAPPPEQYAVTWLSREV
TMSQDALLAALRLSAGSPGAALALFQGDNWQARETLCQALAYSVPSGDWYSLLAALNHEQ
APARLHWLATLLMDALKRHHGAAQVTNVDVPGLVAELANHLSPSRLQAILGDVCHIREQL
MSVTGINRELLITDLLLRIEHYLQPGVVLPVPHL

>3GLF_4 DNA (5'-D(*TP*TP*TP*TP*TP*TP*AP*TP*AP*GP*GP*CP*CP*AP*G)-3') (chains K, M)
TTTTTTATAGGCCAG

>3GLF_5 DNA (5'-D(*CP*TP*GP*GP*CP*CP*TP*AP*TP*A)-3') (chains L, N)
CTGGCCTATA

Ligands and cofactors

Primary citation

The mechanism of ATP-dependent primer-template recognition by a clamp loader complex. Simonetta, K.R., Kazmirski, S.L., Goedken, E.R. et al. Cell (2009) 137:659-671. DOI 10.1016/j.cell.2009.03.044 · PubMed

Related structures

Other PDB entries of the same protein (UniProt P28630 (AlphaFold model), which also has an AlphaFold model), best resolution first:

• 1JQL 2.5 Å, Mechanism of Processivity Clamp Opening by the Delta Subunit Wrench of the Clamp Loader…
• 9OYJ 2.53 Å, Structure of the E. coli clamp loader DnaX-complex loading beta-clamp onto 10-nt gapped…
• 9OYH 2.54 Å, Structure of the E. coli clamp loader DnaX-complex loading beta-clamp onto 10-nt gapped…
• 9OYI 2.54 Å, Structure of the E. coli clamp loader DnaX-complex loading beta-clamp onto 10-nt gapped…
• 8GJ2 2.6 Å, E. coli clamp loader with closed clamp on primed template DNA
• 9OYK 2.6 Å, Structure of the E. coli clamp loader DnaX-complex loading beta-clamp onto 10-nt gapped…
• 9OYM 2.6 Å, Structure of the E. coli clamp loader DnaX-complex loading beta-clamp onto 10-nt gapped…
• 1JR3 2.7 Å, Crystal Structure of the Processivity Clamp Loader Gamma Complex of E. coli DNA…
• 8GIZ 2.7 Å, E. coli clamp loader with open clamp
• 9OYN 2.7 Å, Structure of the E. coli clamp loader DnaX-complex loading beta-clamp onto 10-nt gapped…
• 9OYC 2.71 Å, Structure of the E. coli clamp loader DnaX-complex loading beta-clamp onto 1-nt gapped…
• 9OYE 2.72 Å, Structure of the E. coli clamp loader DnaX-complex loading beta-clamp onto 1-nt gapped…

Browse structure collections

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