1ik9

From Proteopedia

CRYSTAL STRUCTURE OF A XRCC4-DNA LIGASE IV COMPLEX

Structural highlights

1ik9 is a 3 chain structure with sequence from Homo sapiens. The July 2004 RCSB PDB Molecule of the Month feature on DNA Ligase by David S. Goodsell is 10.2210/rcsb_pdb/mom_2004_7. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Method:	X-ray diffraction, Resolution 2.3Å
Resources:	FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

XRCC4_HUMAN Involved in DNA non-homologous end joining (NHEJ) required for double-strand break repair and V(D)J recombination. Binds to DNA and to DNA ligase IV (LIG4). The LIG4-XRCC4 complex is responsible for the NHEJ ligation step, and XRCC4 enhances the joining activity of LIG4. Binding of the LIG4-XRCC4 complex to DNA ends is dependent on the assembly of the DNA-dependent protein kinase complex DNA-PK to these DNA ends.^[1] ^[2] ^[3] ^[4]

Evolutionary Conservation

Checkto colour the structure by Evolutionary Conservation, as determined by ConSurfDB. You may read the explanation of the method and the full data available from ConSurf.

References

↑ Li Z, Otevrel T, Gao Y, Cheng HL, Seed B, Stamato TD, Taccioli GE, Alt FW. The XRCC4 gene encodes a novel protein involved in DNA double-strand break repair and V(D)J recombination. Cell. 1995 Dec 29;83(7):1079-89. PMID:8548796
↑ Chen L, Trujillo K, Sung P, Tomkinson AE. Interactions of the DNA ligase IV-XRCC4 complex with DNA ends and the DNA-dependent protein kinase. J Biol Chem. 2000 Aug 25;275(34):26196-205. PMID:10854421 doi:10.1074/jbc.M000491200
↑ Nick McElhinny SA, Snowden CM, McCarville J, Ramsden DA. Ku recruits the XRCC4-ligase IV complex to DNA ends. Mol Cell Biol. 2000 May;20(9):2996-3003. PMID:10757784
↑ Foster RE, Nnakwe C, Woo L, Frank KM. Monoubiquitination of the nonhomologous end joining protein XRCC4. Biochem Biophys Res Commun. 2006 Mar 3;341(1):175-83. Epub 2006 Jan 6. PMID:16412978 doi:S0006-291X(05)02903-7

1 Structural highlights
2 Function
3 Evolutionary Conservation
4 See Also
5 References

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PDB ID 1ik9

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1ik9

From Proteopedia

CRYSTAL STRUCTURE OF A XRCC4-DNA LIGASE IV COMPLEX

Structural highlights

Function

Evolutionary Conservation

See Also

References

Contents

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