1m5k

From Proteopedia

Crystal structure of a hairpin ribozyme in the catalytically-active conformation

Structural highlights

1m5k is a 6 chain structure with sequence from Homo sapiens. This structure supersedes the now removed PDB entry 1hp6. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Method:	X-ray diffraction, Resolution 2.4Å
Ligands:	A2M, CA, CL, GTP, IU
Resources:	FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

SNRPA_HUMAN Binds stem loop II of U1 snRNA. It is the first snRNP to interact with pre-mRNA. This interaction is required for the subsequent binding of U2 snRNP and the U4/U6/U5 tri-snRNP. In a snRNP-free form (SF-A) may be involved in coupled pre-mRNA splicing and polyadenylation process. Binds preferentially to the 5'-UGCAC-3' motif in vitro.^[1]

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

↑ Lutz CS, Cooke C, O'Connor JP, Kobayashi R, Alwine JC. The snRNP-free U1A (SF-A) complex(es): identification of the largest subunit as PSF, the polypyrimidine-tract binding protein-associated splicing factor. RNA. 1998 Dec;4(12):1493-9. PMID:9848648