1j1j

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Crystal Structure of human TranslinCrystal Structure of human Translin

Structural highlights

1j1j is a 4 chain structure with sequence from Homo sapiens. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Method:X-ray diffraction, Resolution 2.2Å
Resources:FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

TSN_HUMAN DNA-binding protein that specifically recognizes consensus sequences at the breakpoint junctions in chromosomal translocations, mostly involving immunoglobulin (Ig)/T-cell receptor gene segments. Seems to recognize single-stranded DNA ends generated by staggered breaks occurring at recombination hot spots.[1] [2] Exhibits both single-stranded and double-stranded endoribonuclease activity. May act as an activator of RNA-induced silencing complex (RISC) by facilitating endonucleolytic cleavage of the siRNA passenger strand.[3] [4]

Evolutionary Conservation

Check, as determined by ConSurfDB. You may read the explanation of the method and the full data available from ConSurf.

Publication Abstract from PubMed

The structure of human translin at 2.2 A resolution is reported in space group C222(1). Translin forms a tetramer in the asymmetric unit. Although the monomer structure is almost the same as the crystal structure of murine translin in space group P2(1)2(1)2, the relative positions of the tetramers differ between the human and murine translins. This suggests that the multimerization of translin is flexible; the flexibility may be related to the binding to DNA/RNA.

Structure of human translin at 2.2 A resolution.,Sugiura I, Sasaki C, Hasegawa T, Kohno T, Sugio S, Moriyama H, Kasai M, Matsuzaki T Acta Crystallogr D Biol Crystallogr. 2004 Apr;60(Pt 4):674-9. Epub 2004, Mar 23. PMID:15039555[5]

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

References

  1. Kasai M, Matsuzaki T, Katayanagi K, Omori A, Maziarz RT, Strominger JL, Aoki K, Suzuki K. The translin ring specifically recognizes DNA ends at recombination hot spots in the human genome. J Biol Chem. 1997 Apr 25;272(17):11402-7. PMID:9111049
  2. Ye X, Huang N, Liu Y, Paroo Z, Huerta C, Li P, Chen S, Liu Q, Zhang H. Structure of C3PO and mechanism of human RISC activation. Nat Struct Mol Biol. 2011 May 8. PMID:21552258 doi:10.1038/nsmb.2032
  3. Kasai M, Matsuzaki T, Katayanagi K, Omori A, Maziarz RT, Strominger JL, Aoki K, Suzuki K. The translin ring specifically recognizes DNA ends at recombination hot spots in the human genome. J Biol Chem. 1997 Apr 25;272(17):11402-7. PMID:9111049
  4. Ye X, Huang N, Liu Y, Paroo Z, Huerta C, Li P, Chen S, Liu Q, Zhang H. Structure of C3PO and mechanism of human RISC activation. Nat Struct Mol Biol. 2011 May 8. PMID:21552258 doi:10.1038/nsmb.2032
  5. Sugiura I, Sasaki C, Hasegawa T, Kohno T, Sugio S, Moriyama H, Kasai M, Matsuzaki T. Structure of human translin at 2.2 A resolution. Acta Crystallogr D Biol Crystallogr. 2004 Apr;60(Pt 4):674-9. Epub 2004, Mar 23. PMID:15039555 doi:10.1107/S0907444904002549

1j1j, resolution 2.20Å

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