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1rch

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Revision as of 10:11, 15 September 2021

SOLUTION NMR STRUCTURE OF RIBONUCLEASE HI FROM ESCHERICHIA COLI, 8 STRUCTURES

Structural highlights

1rch is a 1 chain structure with sequence from Escherichia coli. Full experimental information is available from OCA. For a guided tour on the structure components use FirstGlance.
Activity:	Ribonuclease H, with EC number 3.1.26.4
Resources:	FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

[RNH_ECOLI] Endonuclease that specifically degrades the RNA of RNA-DNA hybrids. RNase H participates in DNA replication; it helps to specify the origin of genomic replication by suppressing initiation at origins other than the oriC locus; along with the 5'-3' exonuclease of pol1, it removes RNA primers from the Okazaki fragments of lagging strand synthesis; and it defines the origin of replication for ColE1-type plasmids by specific cleavage of an RNA preprimer.[HAMAP-Rule:MF_00042]

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 solution structure of ribonuclease HI (RNase HI) from Escherichia coli (E. coli), a protein of 155 residues, was determined. Three-dimensional nuclear Overhauser enhancement spectroscopy (NOESY) was used to obtain 1,424 distance constraints between individually assigned polypeptide chain hydrogen atoms. Supplemental geometric constraints of 90phi angles and 12chi1 angles, and the distance constraints of 66 hydrogen bonds were experimentally derived. Using the DADAS90 program that calculates structures in dihedral angle space, 15 structures satisfying almost all constraints were obtained. The average root mean square deviation (RMSD) from the mean structure was 0.75 A for backbone atoms. The RMSD for backbone atoms between the representative NMR structure with the smallest constraint violation and crystal structures was within 1.2 A. Although the NMR and crystal structures thus resemble one another, a significant discrepancy was observed in a region termed 'basic protrusion.' The discrepancy observed in NMR experiments is explained by fluctuation in this region.

NMR structure of ribonuclease HI from Escherichia coli.,Fujiwara M, Kato T, Yamazaki T, Yamasaki K, Nagayam K Biol Pharm Bull. 2000 Oct;23(10):1147-52. PMID:11041241^[1]

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

References

↑ Fujiwara M, Kato T, Yamazaki T, Yamasaki K, Nagayam K. NMR structure of ribonuclease HI from Escherichia coli. Biol Pharm Bull. 2000 Oct;23(10):1147-52. PMID:11041241

1 Structural highlights
2 Function
3 Evolutionary Conservation
4 Publication Abstract from PubMed
5 See Also
6 References

Proteopedia Page Contributors and Editors (what is this?)

OCA

Retrieved from "http://52.214.119.220/wiki/index.php/1rch"

@@ Line 3: / Line 3: @@
 <StructureSection load='1rch' size='340' side='right'caption='[[1rch]], [[NMR_Ensembles_of_Models | 8 NMR models]]' scene=''>
 == Structural highlights ==
-<table><tr><td colspan='2'>[[1rch]] is a 1 chain structure with sequence from [http://en.wikipedia.org/wiki/Escherichia_coli Escherichia coli]. Full experimental information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1RCH OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1RCH FirstGlance]. <br>
+<table><tr><td colspan='2'>[[1rch]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Escherichia_coli Escherichia coli]. Full experimental information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1RCH OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1RCH FirstGlance]. <br>
-</td></tr><tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/Ribonuclease_H Ribonuclease H], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=3.1.26.4 3.1.26.4] </span></td></tr>
+</td></tr><tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[https://en.wikipedia.org/wiki/Ribonuclease_H Ribonuclease H], with EC number [https://www.brenda-enzymes.info/php/result_flat.php4?ecno=3.1.26.4 3.1.26.4] </span></td></tr>
-<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1rch FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1rch OCA], [http://pdbe.org/1rch PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=1rch RCSB], [http://www.ebi.ac.uk/pdbsum/1rch PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=1rch ProSAT]</span></td></tr>
+<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=1rch FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1rch OCA], [https://pdbe.org/1rch PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1rch RCSB], [https://www.ebi.ac.uk/pdbsum/1rch PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1rch ProSAT]</span></td></tr>
 </table>
 == Function ==
-[[http://www.uniprot.org/uniprot/RNH_ECOLI RNH_ECOLI]] Endonuclease that specifically degrades the RNA of RNA-DNA hybrids. RNase H participates in DNA replication; it helps to specify the origin of genomic replication by suppressing initiation at origins other than the oriC locus; along with the 5'-3' exonuclease of pol1, it removes RNA primers from the Okazaki fragments of lagging strand synthesis; and it defines the origin of replication for ColE1-type plasmids by specific cleavage of an RNA preprimer.[HAMAP-Rule:MF_00042]
+[[https://www.uniprot.org/uniprot/RNH_ECOLI RNH_ECOLI]] Endonuclease that specifically degrades the RNA of RNA-DNA hybrids. RNase H participates in DNA replication; it helps to specify the origin of genomic replication by suppressing initiation at origins other than the oriC locus; along with the 5'-3' exonuclease of pol1, it removes RNA primers from the Okazaki fragments of lagging strand synthesis; and it defines the origin of replication for ColE1-type plasmids by specific cleavage of an RNA preprimer.[HAMAP-Rule:MF_00042]
 == Evolutionary Conservation ==
 [[Image:Consurf_key_small.gif|200px|right]]
@@ Line 30: / Line 30: @@
 ==See Also==
-*[[Ribonuclease|Ribonuclease]]
+*[[Ribonuclease 3D structures|Ribonuclease 3D structures]]
-*[[Temp|Temp]]
 == References ==
 <references/>

1rch

From Proteopedia

Revision as of 10:11, 15 September 2021

SOLUTION NMR STRUCTURE OF RIBONUCLEASE HI FROM ESCHERICHIA COLI, 8 STRUCTURES

Structural highlights

Function

Evolutionary Conservation

Publication Abstract from PubMed

See Also

References

Contents

Proteopedia Page Contributors and Editors (what is this?)

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