3GLI: E. coli clamp loader

Crystal Structure of the E. coli clamp loader bound to Primer-Template DNA and Psi Peptide. Determined by X-ray diffraction at 3.5 Å resolution. Released 26 May 2009.

Method
X-ray diffraction
Resolution
3.5 Å
Organisms
Escherichia coli, Escherichia coLI, ESCHERICHIA COLI
Chains
16
Atoms
29,139
Mol. weight
440.4 kDa
Ligands
ADP, BEF, ZN, MG
Released
26 May 2009

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

Secondary structure: helices and β-sheets

3GLI contains 231 α-helices and 83 β-strands across 12 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: 19 helices, 8 β-strands

ElementResiduesLengthSheet
β-strand2-431
α-helix6-1510
β-strand20-2561
α-helix28-4417
β-strand50-5451
β-strand78-8361
α-helix84-852
α-helix94-1018
β-strand108-11471
α-helix116-1183
α-helix119-1224
α-helix125-1306
β-strand135-13951
α-helix140-1434
α-helix147-15711
β-strand161-16222
α-helix164-17411
α-helix178-19114
β-strand196-19722
α-helix199-2046
α-helix215-2239
α-helix226-23813
α-helix243-26624
α-helix269-2757
α-helix280-29213
α-helix295-31319
α-helix321-33010
Chain B: 23 helices, 9 β-strands
ElementResiduesLengthSheet
α-helix6-94
α-helix15-173
α-helix22-3312
β-strand40-4453
α-helix51-6313
α-helix77-848
β-strand90-9123
β-strand9413
α-helix101-1077
α-helix114-1152
β-strand121-12663
α-helix128-1303
α-helix133-14311
β-strand150-15563
α-helix159-1613
α-helix164-1674
β-strand171-17443
α-helix175-1795
α-helix180-19415
β-strand197-19824
α-helix200-20910
α-helix214-22714
β-strand231-23224
α-helix234-24310
α-helix248-25710
α-helix261-27414
α-helix278-29518
α-helix299-3013
α-helix310-3189
α-helix322-33817
α-helix345-35814
β-strand359-36245
Chain C: 23 helices, 7 β-strands
ElementResiduesLengthSheet
α-helix6-94
α-helix15-173
α-helix22-3312
β-strand40-4456
α-helix51-6212
α-helix77-837
β-strand90-9456
α-helix101-1099
α-helix114-1152
β-strand121-12666
α-helix128-1303
α-helix133-14412
β-strand150-15676
α-helix159-1613
α-helix164-1674
β-strand171-17446
α-helix175-1795
α-helix180-19314
β-strand19817
α-helix200-20910
α-helix214-22815
β-strand23217
α-helix234-2418
α-helix247-25711
α-helix261-27313
α-helix278-29720
α-helix307-31913
α-helix322-33817
α-helix345-35915
α-helix365-3673
Chain D: 26 helices, 7 β-strands
ElementResiduesLengthSheet
α-helix6-94
α-helix15-173
α-helix22-3413
β-strand40-4458
α-helix51-6313
α-helix77-837
β-strand92-9438
α-helix101-1099
α-helix114-1152
β-strand121-12668
α-helix128-1303
α-helix133-14412
β-strand150-15678
α-helix159-1613
α-helix164-1674
β-strand171-17448
α-helix175-1795
α-helix180-19314
β-strand19819
α-helix200-21011
α-helix214-22815
β-strand23219
α-helix234-2407
α-helix243-2453
α-helix247-25711
α-helix261-27414
α-helix278-29720
α-helix299-3013
α-helix304-3085
α-helix310-31910
α-helix322-33716
α-helix339-3413
α-helix345-35713
Chains E and J: 21 helices, 9 β-strands
ElementResiduesLengthSheet
α-helix5-73
α-helix8-2013
β-strand26-30510
α-helix37-4812
β-strand54111
β-strand57111
α-helix63-697
β-strand76-79410
β-strand88112
α-helix90-9910
β-strand110-114510
α-helix117-1193
β-strand120112
α-helix122-13312
β-strand139-145710
α-helix148-1503
α-helix153-1564
β-strand160-163410
α-helix165-1684
α-helix169-17911
α-helix184-19310
α-helix200-2067
α-helix209-22618
α-helix230-2323
α-helix233-2364
α-helix241-25818
α-helix271-28010
α-helix283-30220
α-helix308-32316
α-helix327-3304
Chain F: 18 helices, 8 β-strands
ElementResiduesLengthSheet
β-strand2-4313
α-helix6-1510
β-strand20-25613
α-helix28-4417
β-strand50-54513
β-strand78-83613
α-helix94-1018
β-strand108-114713
α-helix116-1183
α-helix119-1224
α-helix125-1306
β-strand135-139513
α-helix140-1434
α-helix147-15711
β-strand161-162214
α-helix164-17411
α-helix178-19114
β-strand196-197214
α-helix199-2046
α-helix215-2239
α-helix226-23813
α-helix243-26624
α-helix269-2757
α-helix280-29213
α-helix295-31319
α-helix320-33011
Chain G: 25 helices, 9 β-strands
ElementResiduesLengthSheet
α-helix-7--53
β-strand3115
α-helix4-52
α-helix6-94
α-helix15-173
α-helix22-3312
β-strand40-44516
α-helix51-6313
α-helix77-848
β-strand90-94516
α-helix101-1077
α-helix114-1152
β-strand121-126616
α-helix128-1303
α-helix133-14311
β-strand150-155616
α-helix159-1613
α-helix164-1674
β-strand171-174416
α-helix175-1795
α-helix180-19415
β-strand197-198217
α-helix200-20910
α-helix214-22714
β-strand231-232217
α-helix234-24310
α-helix248-25710
α-helix261-27414
α-helix278-29518
α-helix299-3013
α-helix310-3189
α-helix322-33817
α-helix345-35814
β-strand359-362418
Chain H: 23 helices, 8 β-strands
ElementResiduesLengthSheet
α-helix6-94
α-helix15-173
α-helix22-3312
β-strand36115
β-strand40-44519
α-helix51-6212
α-helix77-837
β-strand90-94519
α-helix101-1099
α-helix114-1152
β-strand121-126619
α-helix128-1303
α-helix133-14412
β-strand150-156719
α-helix159-1613
α-helix164-1674
β-strand171-174419
α-helix175-1795
α-helix180-19314
β-strand198120
α-helix200-20910
α-helix214-22714
β-strand232120
α-helix234-2418
α-helix247-25711
α-helix261-27313
α-helix278-29720
α-helix307-31913
α-helix322-33615
α-helix345-35915
α-helix365-3673

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

Molecules and chains

MoleculeChainsTypeLengthOrganismUniProt
DNA polymerase III subunit deltaA, Fprotein343Escherichia coliP28630 (AlphaFold model)
DNA polymerase III subunit tauB, C, D, G, H, Iprotein395Escherichia coliP06710 (AlphaFold model)
DNA polymerase III subunit delta'E, Jprotein334Escherichia coLIP28631 (AlphaFold model)
DNA (5'-d(*tp*tp*tp*tp*tp*tp*ap*tp*ap*gp*gp*cp*cp*ap*g)-3')K, MDNA15
DNA (5'-d(*cp*tp*gp*gp*cp*cp*tp*ap*tp*a)-3')L, NDNA10
DNA polymerase III subunit psiO, Pprotein27ESCHERICHIA COLIP28632 (AlphaFold model)
Sequence of entity 1 (A, F), FASTA
>3GLI_1 DNA polymerase III subunit delta (chains A, F)
MIRLYPEQLRAQLNEGLRAAYLLLGNDPLLLQESQDAVRQVAAAQGFEEHHTFSIDPNTD
WNAIFSLCQAMSLFASRQTLLLLLPENGPNAAINEQLLTLTGLLHDDLLLIVRGNKLSKA
QENAAWFTALANRSVQVTCQTPEQAQLPRWVAARAKQLNLELDDAANQVLCYCYEGNLLA
LAQALERLSLLWPDGKLTLPRVEQAVNDAAHFTPFHWVDALLMGKSKRALHILQQLRLEG
SEPVILLRTLQRELLLLVNLKRQSAHTPLRALFDKHRVWQNRRGMMGEALNRLSQTQLRQ
AVQLLTRTELTLKQDYGQSVWAELEGLSLLLCHKPLADVFIDG
Sequence of entity 2 (B, C, D, G, H, I), FASTA
>3GLI_2 DNA polymerase III subunit tau (chains B, C, D, G, H, I)
MGSSHHHHHHSSGLEVLFQGPHMSYQVLARKWRPQTFADVVGQEHVLTALANGLSLGRIH
HAYLFSGTRGVGKTSIARLLAKGLNCETGITATPCGVCDNCREIEQGRFVDLIEIDAASR
TKVEDTRDLLDNVQYAPARGRFKVYLIDEVHMLSRHSFNALLKTLEEPPEHVKFLLATTD
PQKLPVTILSRCLQFHLKALDVEQIRHQLEHILNEEHIAHEPRALQLLARAAEGSLRDAL
SLTDQAIASGDGQVSTQAVSAMLGTLDDDQALSLVEAMVEANGERVMALINEAAARGIEW
EALLVEMLGLLHRIAMVQLSPAALGNDMAAIELRMRELARTIPPTDIQLYYQTLLIGRKE
LPYAPDRRMGVEMTLLRALAFHPRMPLPEPEVPRQ
Sequence of entity 3 (E, J), FASTA
>3GLI_3 DNA polymerase III subunit delta' (chains E, J)
MRWYPWLRPDFEKLVASYQAGRGHHALLIQALPGMGDDALIYALSRYLLCQQPQGHKSCG
HCRGCQLMQAGTHPDYYTLAPEKGKNTLGVDAVREVTEKLNEHARLGGAKVVWVTDAALL
TDAAANALLKTLEEPPAETWFFLATREPERLLATLRSRCRLHYLAPPPEQYAVTWLSREV
TMSQDALLAALRLSAGSPGAALALFQGDNWQARETLCQALAYSVPSGDWYSLLAALNHEQ
APARLHWLATLLMDALKRHHGAAQVTNVDVPGLVAELANHLSPSRLQAILGDVCHIREQL
MSVTGINRELLITDLLLRIEHYLQPGVVLPVPHL
Sequence of entity 4 (K, M), FASTA
>3GLI_4 DNA (5'-D(*TP*TP*TP*TP*TP*TP*AP*TP*AP*GP*GP*CP*CP*AP*G)-3') (chains K, M)
TTTTTTATAGGCCAG
Sequence of entity 5 (L, N), FASTA
>3GLI_5 DNA (5'-D(*CP*TP*GP*GP*CP*CP*TP*AP*TP*A)-3') (chains L, N)
CTGGCCTATA
Sequence of entity 6 (O, P), FASTA
>3GLI_6 DNA polymerase III subunit psi (chains O, P)
TSRRDWQLQQLGITQWSLRRPGALQGE

Ligands and cofactors

IDNameFormulaCopies
ADPAdenosine-5'-diphosphateC10 H15 N5 O10 P26
BEFBeryllium trifluoride ionBe F36
ZNZinc ionZn8
MGMagnesium ionMg6

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

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

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