DNA polymerase III subunit chi dimerizes with subunit psi and binds to single-strand binding (SSB) protein and acts as a bridge between the DnaX clamp loader complex and the SSB
DNA polymerase III chi subunit, HolC; The DNA polymerase III holoenzyme (EC:2.7.7.7) is the ...
1-141
3.74e-53
DNA polymerase III chi subunit, HolC; The DNA polymerase III holoenzyme (EC:2.7.7.7) is the polymerase responsible for the replication of the Escherichia coli chromosome. The holoenzyme is composed of the DNA polymerase III core, the sliding clamp, and the DnaX clamp loading complex. The DnaX complex contains either either the tau or gamma product of gene dnax, complexed to delta.delta' and to chi psi. Chi forms a 1:1 heterodimer with psi. The chi psi complex functions by increasing the affinity of tau and gamma for delta.delta' allowing a functional clamp-loading complex to form at physiological subunit concentrations. Psi is responsible for the interaction with DnaX (gamma/tau), but psi is insoluble unless it is in a complex with chi.
Pssm-ID: 461276 [Multi-domain] Cd Length: 135 Bit Score: 164.27 E-value: 3.74e-53
DNA polymerase III chi subunit, HolC; The DNA polymerase III holoenzyme (EC:2.7.7.7) is the ...
1-141
3.74e-53
DNA polymerase III chi subunit, HolC; The DNA polymerase III holoenzyme (EC:2.7.7.7) is the polymerase responsible for the replication of the Escherichia coli chromosome. The holoenzyme is composed of the DNA polymerase III core, the sliding clamp, and the DnaX clamp loading complex. The DnaX complex contains either either the tau or gamma product of gene dnax, complexed to delta.delta' and to chi psi. Chi forms a 1:1 heterodimer with psi. The chi psi complex functions by increasing the affinity of tau and gamma for delta.delta' allowing a functional clamp-loading complex to form at physiological subunit concentrations. Psi is responsible for the interaction with DnaX (gamma/tau), but psi is insoluble unless it is in a complex with chi.
Pssm-ID: 461276 [Multi-domain] Cd Length: 135 Bit Score: 164.27 E-value: 3.74e-53
Database: CDSEARCH/cdd Low complexity filter: no Composition Based Adjustment: yes E-value threshold: 0.01
References:
Wang J et al. (2023), "The conserved domain database in 2023", Nucleic Acids Res.51(D)384-8.
Lu S et al. (2020), "The conserved domain database in 2020", Nucleic Acids Res.48(D)265-8.
Marchler-Bauer A et al. (2017), "CDD/SPARCLE: functional classification of proteins via subfamily domain architectures.", Nucleic Acids Res.45(D)200-3.
of the residues that compose this conserved feature have been mapped to the query sequence.
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Functional characterization of the conserved domain architecture found on the query.
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This image shows a graphical summary of conserved domains identified on the query sequence.
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Concise Display shows only the best scoring domain model, in each hit category listed below except non-specific hits, for each region on the query sequence.
(labeled illustration) Standard Display shows only the best scoring domain model from each source, in each hit category listed below for each region on the query sequence.
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specific hits meet or exceed a domain-specific e-value threshold
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