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Description:
Endonuclease III (EC 4.2.99.18) (DNA-(apurinic or apyrimidinic site)lyase).
Molecular weight: 23702
View which proteins in this organism that is involved with DNA Repair;
classified after biological processes (using data from the GOA project):
DNA repair( GO:0006281 ) base-excision repair( GO:0006284 )
Important dates:
15-FEB-2005, integrated into UniProtKB/Swiss-Prot.
01-DEC-2001, sequence version 1.
07-MAR-2006, entry version 23.
Phylogenetic order:
Bacteria Proteobacteria Alphaproteobacteria Rickettsiales Rickettsiaceae Rickettsieae Rickettsia spotted fever group.
To calculate the pI (Isoelectric point - the pH where a protein has a neutral charge),
go to this page and enter the protein ID (e.g 3MG_ECOLI): http://us.expasy.org/tools/pi_tool.html
Links to references in other databases for protein END3_RICCN:
| Database | Pointer | Add. info#1 | Add. info#2 |
| EMBL | AE008663 | AAL03687.1 | - |
| PIR | E97843 | E97843. | |
| HSSP | P20625 | 2ABK | |
| GenomeReviews | AE006914_GR | RC1149.1 | |
| BioCyc | RCON781:RC1149-MONOMER | -.1 | |
| InterPro | IPR003265 | Endo_3c. | |
| InterPro | IPR004035 | EndoIII_FCL. | |
| InterPro | IPR004036 | EndoIII_HhH. | |
| InterPro | IPR003651 | FeS_bind. | |
| InterPro | IPR000445 | HhH. | |
| InterPro | IPR005759 | Nth. | |
| Pfam | PF00633 | HHH | 1. |
| Pfam | PF00730 | HhH-GPD | 1. |
| SMART | SM00478 | ENDO3c | 1. |
| SMART | SM00525 | FES | 1. |
| TIGRFAMs | TIGR01083 | nth | 1. |
| PROSITE | PS00764 | ENDONUCLEASE_III_1 | FALSE_NEG. |
| PROSITE | PS01155 | ENDONUCLEASE_III_2 | 1. |
Keywords:
4Fe-4S; Complete proteome; DNA damage; DNA repair; Glycosidase; Hydrolase; Iron; Iron-sulfur; Lyase; Metal-binding; Multifunctional enzyme.
References:
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=Malish 7;
RX MEDLINE=21442074; PubMed=11557893; DOI=10.1126/science.1061471;
RA Ogata H., Audic S., Renesto-Audiffren P., Fournier P.-E., Barbe V.,
RA Samson D., Roux V., Cossart P., Weissenbach J., Claverie J.-M.,
RA Raoult D.;
RT "Mechanisms of evolution in Rickettsia conorii and R. prowazekii.";
RL Science 293:2093-2098(2001).
Feature:
CHAIN 1 210 Endonuclease III.
/FTId=PRO_0000102220.
METAL 187 187 Iron-sulfur (4Fe-4S) (By similarity).
METAL 194 194 Iron-sulfur (4Fe-4S) (By similarity).
METAL 197 197 Iron-sulfur (4Fe-4S) (By similarity).
METAL 203 203 Iron-sulfur (4Fe-4S) (By similarity).
Comments:
-!- FUNCTION: Has both an apurinic and/or apyrimidinic endonuclease
activity and a DNA N-glycosylase activity. Incises damaged DNA at
cytosines, thymines and guanines. Acts on a damaged strand, 5'
from the damaged site (By similarity).
-!- CATALYTIC ACTIVITY: The C-O-P bond 3' to the apurinic or
apyrimidinic site in DNA is broken by a beta-elimination reaction,
leaving a 3'-terminal unsaturated sugar and a product with a
terminal 5'-phosphate.
-!- COFACTOR: Binds 1 4Fe-4S cluster which is not important for the
catalytic activity, but which is probably involved in the proper
positioning of the enzyme along the DNA strand (By similarity).
-!- SIMILARITY: Belongs to the nth/mutY family.
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Sequence length: 210
MQAQIVNKIF EIFSKNNPNP KTELIYKNDF TLLVAVILSA QATDISVNLA TKSLFATYDT
PEKILELGEE GLKKYIKSIG LFNSKAKNII ALCKILISNY QASVPNDFKA LIKLPGVGRK
TANVVLNCLF GMPTMAVDTH VFRVANRIGL AKGDTPEIVE NELLQIIDTK WLTHAHHWLI
LHGRYICKAR KPDCDICPIK EYCDYYFNLK