EC Explorer

EC 3.1.21.3 Details
show Brenda entry
EC number
3.1.21.3
Accepted name
type I site-specific deoxyribonuclease
Reaction
Endonucleolytic cleavage of DNA to give random double-stranded fragments with terminal 5′-phosphates; ATP is simultaneously hydrolysed
Other name(s)
type I restriction enzyme, deoxyribonuclease (ATP- and S-adenosyl-L-methionine-dependent), restriction-modification system, deoxyribonuclease (adenosine triphosphate-hydrolyzing), adenosine triphosphate-dependent deoxyribonuclease, ATP-dependent DNase, type 1 site-specific deoxyribonuclease
CAS registry number
37263-09-5
Comment
This is a large group of enzymes which, together with those now listed as EC 3.1.21.4 (type II site-specific deoxyribonuclease) and EC 3.1.21.5 (type III site-specific deoxyribonuclease), were previously listed separately in sub-subclasses EC 3.1.23 and EC 3.1.24. They have an absolute requirement for ATP (or dATP) and S-adenosyl-L-methionine. They recognize specific short DNA sequences and cleave at sites remote from the recognition sequence. They are multifunctional proteins that also catalyse the reactions of EC 2.1.1.72 [site-specific DNA-methyltransferase (adenine-specific)] and EC 2.1.1.37
History
created 1984 from EC 3.1.23 and EC 3.1.24
EC Browser
1 Oxidoreductases (9651 organisms) download 3869963 sequences with EC number 1 in fasta format download 3869963 sequences with EC number 1 as tabstop The data in BRENDA allow the calculation or simulation of metabolic pathways by extracting the information of substrate/product chains and the corresponding kinetic data of the preceding and following enzymes in the Boehringer and KEGG metabolism (with the risk of including ?pathways? with non-natural compounds). version Download 2822 PDB numbers (EC 1) as tabstop separated file
2 Transferases (6622 organisms) download 6047191 sequences with EC number 2 in fasta format download 6047191 sequences with EC number 2 as tabstop The data in BRENDA allow the calculation or simulation of metabolic pathways by extracting the information of substrate/product chains and the corresponding kinetic data of the preceding and following enzymes in the Boehringer and KEGG metabolism (with the risk of including ?pathways? with non-natural compounds). version Download 2822 PDB numbers (EC 2) as tabstop separated file
3 Hydrolases (10604 organisms) download 3219244 sequences with EC number 3 in fasta format download 3219244 sequences with EC number 3 as tabstop The data in BRENDA allow the calculation or simulation of metabolic pathways by extracting the information of substrate/product chains and the corresponding kinetic data of the preceding and following enzymes in the Boehringer and KEGG metabolism (with the risk of including ?pathways? with non-natural compounds). version Download 2822 PDB numbers (EC 3) as tabstop separated file
3.1 Acting on ester bonds (4094 organisms) download 865431 sequences with EC number 3.1 in fasta format download 865431 sequences with EC number 3.1 as tabstop The data in BRENDA allow the calculation or simulation of metabolic pathways by extracting the information of substrate/product chains and the corresponding kinetic data of the preceding and following enzymes in the Boehringer and KEGG metabolism (with the risk of including ?pathways? with non-natural compounds). version Download 2822 PDB numbers (EC 3.1) as tabstop separated file
3.2 Glycosylases (4584 organisms) download 422035 sequences with EC number 3.2 in fasta format download 422035 sequences with EC number 3.2 as tabstop The data in BRENDA allow the calculation or simulation of metabolic pathways by extracting the information of substrate/product chains and the corresponding kinetic data of the preceding and following enzymes in the Boehringer and KEGG metabolism (with the risk of including ?pathways? with non-natural compounds). version Download 2822 PDB numbers (EC 3.2) as tabstop separated file
4 Lyases (5111 organisms) download 1852335 sequences with EC number 4 in fasta format download 1852335 sequences with EC number 4 as tabstop The data in BRENDA allow the calculation or simulation of metabolic pathways by extracting the information of substrate/product chains and the corresponding kinetic data of the preceding and following enzymes in the Boehringer and KEGG metabolism (with the risk of including ?pathways? with non-natural compounds). version Download 2822 PDB numbers (EC 4) as tabstop separated file
5 Isomerases (2083 organisms) download 1146532 sequences with EC number 5 in fasta format download 1146532 sequences with EC number 5 as tabstop The data in BRENDA allow the calculation or simulation of metabolic pathways by extracting the information of substrate/product chains and the corresponding kinetic data of the preceding and following enzymes in the Boehringer and KEGG metabolism (with the risk of including ?pathways? with non-natural compounds). version Download 2822 PDB numbers (EC 5) as tabstop separated file
6 Ligases (1547 organisms) download 1713431 sequences with EC number 6 in fasta format download 1713431 sequences with EC number 6 as tabstop The data in BRENDA allow the calculation or simulation of metabolic pathways by extracting the information of substrate/product chains and the corresponding kinetic data of the preceding and following enzymes in the Boehringer and KEGG metabolism (with the risk of including ?pathways? with non-natural compounds). version Download 2822 PDB numbers (EC 6) as tabstop separated file
7 Translocases (966 organisms) download 592568 sequences with EC number 7 in fasta format download 592568 sequences with EC number 7 as tabstop The data in BRENDA allow the calculation or simulation of metabolic pathways by extracting the information of substrate/product chains and the corresponding kinetic data of the preceding and following enzymes in the Boehringer and KEGG metabolism (with the risk of including ?pathways? with non-natural compounds). version Download 2822 PDB numbers (EC 7) as tabstop separated file