4U6P: DNA polymerase kappa

Structural mechanism of error-free bypass of major benzo[a]pyrene adduct by human polymerase kappa. Determined by X-ray diffraction at 2.59 Å resolution. Released 27 Jan 2016.

Method: X-ray diffraction
Resolution: 2.59 Å
Organisms: Homo sapiens, unidentified
Chains: 6
Atoms: 7,767
Mol. weight: 135.01 kDa
Ligands: DCT, MG
Released: 27 Jan 2016

Explore 4U6P in 3D Show helices and sheets RCSB PDB PDBe

Secondary structure: helices and β-sheets

4U6P contains 44 α-helices and 32 β-strands across 2 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.

Chains A and B: 22 helices, 16 β-strands

Element	Residues	Length	Sheet
α-helix	33-44	12
α-helix	48-72	25
α-helix	76-95	20
β-strand	103-108	6	1
α-helix	111-119	9
α-helix	121-123	3
β-strand	128-131	4	2
β-strand	136-139	4	2
α-helix	141-144	4
α-helix	154-160	7
β-strand	165-167	3	2
α-helix	168-169	2
α-helix	171-185	15
β-strand	193-194	2	1
β-strand	199-203	5	1
α-helix	205-211	7
β-strand	220-222	3	3
β-strand	283-285	3	3
α-helix	290-305	16
β-strand	309-314	6	1
α-helix	317-324	8
β-strand	332-334	3	1
α-helix	339-346	8
β-strand	350	1	4
α-helix	351-353	3
α-helix	359-367	9
β-strand	372	1	4
α-helix	373-378	6
α-helix	380-386	7
α-helix	389-399	11
α-helix	407-409	3
β-strand	415-425	11	5
α-helix	428-449	22
β-strand	453-462	10	5
β-strand	467-478	12	5
α-helix	481-497	17
α-helix	503-504	2
β-strand	506-514	9	5

Molecules and chains

Molecule	Chains	Type	Length	Organism	UniProt
DNA polymerase kappa	A, B	protein	526	Homo sapiens	Q9UBT6 (AlphaFold model)
DNA (5'-d(pgpcpgpgpaptpcpap*c)-3')	C, P	DNA	9	unidentified
DNA (5'-d(tpaptpgpgptpgpaptpcpcpgp*c)-3')	D, T	DNA	13	unidentified

Sequence of entity 1 (A, B), FASTA

>4U6P_1 DNA polymerase kappa (chains A, B)
MDSTKEKCDSYKDDLLLRMGLNDNKAGMEGLDKEKINKIIMEATKGSRFYGNELKKEKQV
NQRIENMMQQKAQITSQQLRKAQLQVDRFAMELEQSRNLSNTIVHIDMDAFYAAVEMRDN
PELKDKPIAVGSMSMLSTSNYHARRFGVRAAMPGFIAKRLCPQLIIVPPNFDKYRAVSKE
VKEILADYDPNFMAMSLDEAYLNITKHLEERQNWPEDKRRYFIKMGSSVENDNPGKEVNK
LSEHERSISPLLFEESPSDVQPPGDPFQVNFEEQNNPQILQNSVVFGTSAQEVVKEIRFR
IEQKTTLTASAGIAPNTMLAKVCSDKNKPNGQYQILPNRQAVMDFIKDLPIRKVSGIGKV
TEKMLKALGIITCTELYQQRALLSLLFSETSWHYFLHISLGLGSTHLTRDGERKSMSVER
TFSEINKAEEQYSLCQELCSELAQDLQKERLKGRTVTIKLKNVNFEVKTRASTVSSVVST
AEEIFAIAKELLKTEIDADFPHPLRLRLMGVRISSFPNEEDRKHQQ

Sequence of entity 2 (C, P), FASTA

>4U6P_2 DNA (5'-D(P*GP*CP*GP*GP*AP*TP*CP*AP*C)-3') (chains C, P)
GCGGATCAC

Sequence of entity 3 (D, T), FASTA

>4U6P_3 DNA (5'-D(*TP*AP*TP*GP*GP*TP*GP*AP*TP*CP*CP*GP*C)-3') (chains D, T)
TATGGTGATCCGC

Ligands and cofactors

ID	Name	Formula	Copies
DCT	2',3'-dideoxycytidine 5'-triphosphate	C9 H16 N3 O12 P3	2
MG	Magnesium ion	Mg	6

Water and common crystallization additives (PGE) are not listed.

Primary citation

Structure and mechanism of error-free replication past the major benzo[a]pyrene adduct by human DNA polymerase kappa. Jha, V., Bian, C., Xing, G. et al. Nucleic Acids Res (2016) 44:4957-4967. DOI 10.1093/nar/gkw204 · PubMed

Other PDB entries of the same protein (UniProt Q9UBT6 (AlphaFold model), which also has an AlphaFold model), best resolution first:

6CST 2.0 Å, Structure of human DNA polymerase kappa with DNA
1T94 2.4 Å, Crystal structure of the catalytic core of human DNA polymerase kappa
5W2C 2.5 Å, Structure of human DNA polymerase kappa in complex with Lucidin-derived DNA adduct and…
4BA9 2.73 Å, The structural basis for the coordination of Y-family Translesion DNA Polymerases by Rev1
4U7C 2.8 Å, Structure of DNA polymerase kappa in complex with benzopyrene adducted DNA
6BRX 2.8 Å, Crystal Structure of Human DNA polymerase kappa in complex with DNA containing the major…
5W2A 2.9 Å, Structure of human DNA polymerase kappa in complex with Lucidin-derived DNA adduct and…
5T14 3.0 Å, DNA polymerase kappa extending beyond a bulky major benzo[a]pyrene adduct
2OH2 3.05 Å, Ternary Complex of Human DNA Polymerase
6BS1 3.15 Å, Crystal Structure of Human DNA polymerase kappa in complex with DNA containing the major…
2W7O 3.16 Å, Structure and Activity of Bypass Synthesis by Human DNA Polymerase Kappa Opposite the…
3IN5 3.2 Å, Structure of human DNA polymerase kappa inserting dATP opposite an 8-oxoG DNA lesion

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