methyl bromide


ABBREVIATIONS:
MeBr


DESCRIPTION: Is a direct-acting methylating compound existing in the environment. An estimated 5x10v6 tons per year are emitted globally, mostly from biomass burning and biological synthesis by microorganisms and marine algae. These organisms have a methyltransferase which catalyzes the methylation of halide ions. MeCl, MeBr, and MeI can alkylate DNA and are mutagenic and carcinogenic.

DNA DAMAGES:
5-bromoU
N1-methyl A (1meA)
3-methyl C (3meC)


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NAME STRUCTURE PROTEINS DNA DAMAGE EFFECT(S) PATHWAY(S) RELATED
5-bromoU TDG cell cycle arrest
cytotoxic
stalled replication fork
base excision repair (BER)
N1-methyl A (1meA) ALKBH3
AlkB
ALKBH2
ANPG (MPG)
A→T transversion
cytotoxic
stalled replication fork
base excision repair (BER)
direct reversal (DR)
3-methyl C (3meC) AlkB
ALKBH2
ALKBH3
ANPG (MPG)
cytotoxic
stalled replication fork
base excision repair (BER)
direct reversal (DR)

Last modification date: Aug. 14, 2011