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alkA

Gene
alkA
Protein
Probable bifunctional transcriptional activator/DNA repair enzyme AlkA
Organism
Mycobacterium tuberculosis (strain CDC 1551 / Oshkosh)
Length
496 amino acids
Function
The methylation of Alka by methylphosphotriesters in DNA leads to its activation as a transcriptional regulator that activates the transcription of its own gene and other alkylation resistance genes.
Similarity
In the C-terminal section; belongs to the alkylbase DNA glycosidase AlkA family.
Mass
53.743 kDa
Sequence
MHDDFERCYRAIQSKDARFDGWFVVAVLTTGVYCRPSCPVRPPFARNVRFLPTAAAAQGEGFRACKRCRPDASPGSPEWNVRSDVVARAMRLIADGTVDRDGVSGLAAQLGYTIRQLERLLQAVVGAGPLALARAQRMQTARVLIETTNLPFGDVAFAAGFSSIRQFNDTVRLACDGTPTALRARAAARFESATASAGTVSLRLPVRAPFAFEGVFGHLAATAVPGCEEVRDGAYRRTLRLPWGNGIVSLTPAPDHVRCLLVLDDFRDLMTATARCRRLLDLDADPEAIVEALGADPDLRAVVGKAPGQRIPRTVDEAEFAVRAVLAQQVSTKAASTHAGRLVAAYGRPVHDRHGALTHTFPSIEQLAEIDPGHLAVPKARQRTINALVASLADKSLVLDAGCDWQRARGQLLALPGVGPWTAEVIAMRGLGDPDAFPASDLGLRLAAKKLGLPAQRRALTVHSARWRPWRSYATQHLWTTLEHPVNQWPPQEKIA

Gene
alkA
Protein
Probable bifunctional transcriptional activator/DNA repair enzyme AlkA
Organism
Mycobacterium tuberculosis (strain ATCC 25618 / H37Rv)
Length
496 amino acids
Function
The methylation of Alka by methylphosphotriesters in DNA leads to its activation as a transcriptional regulator that activates the transcription of its own gene and other alkylation resistance genes.
Similarity
In the C-terminal section; belongs to the alkylbase DNA glycosidase AlkA family.
Mass
53.743 kDa
Sequence
MHDDFERCYRAIQSKDARFDGWFVVAVLTTGVYCRPSCPVRPPFARNVRFLPTAAAAQGEGFRACKRCRPDASPGSPEWNVRSDVVARAMRLIADGTVDRDGVSGLAAQLGYTIRQLERLLQAVVGAGPLALARAQRMQTARVLIETTNLPFGDVAFAAGFSSIRQFNDTVRLACDGTPTALRARAAARFESATASAGTVSLRLPVRAPFAFEGVFGHLAATAVPGCEEVRDGAYRRTLRLPWGNGIVSLTPAPDHVRCLLVLDDFRDLMTATARCRRLLDLDADPEAIVEALGADPDLRAVVGKAPGQRIPRTVDEAEFAVRAVLAQQVSTKAASTHAGRLVAAYGRPVHDRHGALTHTFPSIEQLAEIDPGHLAVPKARQRTINALVASLADKSLVLDAGCDWQRARGQLLALPGVGPWTAEVIAMRGLGDPDAFPASDLGLRLAAKKLGLPAQRRALTVHSARWRPWRSYATQHLWTTLEHPVNQWPPQEKIA

Gene
alkA
Protein
DNA-3-methyladenine glycosylase
Organism
Bacillus subtilis (strain 168)
Length
303 amino acids
Function
Is involved in the adaptive response to alkylation damage in DNA caused by alkylating agents. Catalyzes the hydrolysis of the deoxyribose N-glycosidic bond to excise 3-methyladenine and 7-methylguanine from the damaged DNA polymer formed by alkylation lesions.
Similarity
Belongs to the alkylbase DNA glycosidase AlkA family.
Mass
35.634 kDa
Sequence
MTWHEVNDVIVITLPEIFDMNANLGYLTREKNECMYEIENNIITKVIAIGEIRSLVQVSVINNKQMIVQFLNDSRPVEQWKREEIVKYIHEWFDLDNDLTPFYEMAKADPLLKMPARKFYGLRVIGIPDLFEALCWGVLGQQINLAFAYSLKKQFVEAFGDSIEWNGKKYWVFPPYERIARLTPTDLADIKMTVKKSEYIIGIARLMASGELSREKLMKMNFKDAEKNLIKIRGIGPWTANYVLMRCLRFPTAFPIDDVGLIHSIKILRNMNRKPTKDEILEISVPWKEWQSYATFYLWRVLY

Gene
alkA
Protein
DNA-3-methyladenine glycosylase 2
Organism
Escherichia coli (strain K12)
Length
282 amino acids
Function
Hydrolysis of the deoxyribose N-glycosidic bond to excise 3-methyladenine, 3-methylguanine, 7-methylguanine, O2-methylthymine, and O2-methylcytosine from the damaged DNA polymer formed by alkylation lesions.
Similarity
Belongs to the alkylbase DNA glycosidase AlkA family.
Mass
31.393 kDa
Sequence
MYTLNWQPPYDWSWMLGFLAARAVSSVETVADSYYARSLAVGEYRGVVTAIPDIARHTLHINLSAGLEPVAAECLAKMSRLFDLQCNPQIVNGALGRLGAARPGLRLPGCVDAFEQGVRAILGQLVSVAMAAKLTARVAQLYGERLDDFPEYICFPTPQRLAAADPQALKALGMPLKRAEALIHLANAALEGTLPMTIPGDVEQAMKTLQTFPGIGRWTANYFALRGWQAKDVFLPDDYLIKQRFPGMTPAQIRRYAERWKPWRSYALLHIWYTEGWQPDEA