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bphA1

Gene
bphA1
Protein
Biphenyl 2,3-dioxygenase subunit alpha
Organism
Rhodococcus jostii (strain RHA1)
Length
460 amino acids
Function
Part of the oxygenase component of the biphenyl dioxygenase system that catalyzes the stereospecific dihydroxylation of the aromatic ring of biphenyl, yielding a dihydrodiol compound. Is essential for biphenyl degradation and growth of Rhodococcus sp. strain RHA1 on biphenyl as the sole source of carbon and energy. Can also use naphtalene and 4-chlorobiphenyl (4-CB) as substrates, as well as some polychlorinated biphenyls (PCB) such as 2,2'-dichlorobiphenyl, 2,3-dichlorobiphenyl and 2,5,2'-trichlorobiphenyl. Exhibits weak activity toward dibenzofuran and dibenzo-p-dioxin. Electrons are transferred from NADH to the [2Fe-2S] cluster in BphA1 via FAD of BphA4 and [2Fe-2S] cluster of BphA3.
Similarity
Belongs to the bacterial ring-hydroxylating dioxygenase alpha subunit family.
Mass
51.592 kDa
Sequence
MTDVQCEPALAGRKPKWADADIAELVDERTGRLDPRIYTDEALYEQELERIFGRSWLLMGHETQIPKAGDFMTNYMGEDPVMVVRQKNGEIRVFLNQCRHRGMRICRADGGNAKSFTCSYHGWAYDTGGNLVSVPFEEQAFPGLRKEDWGPLQARVETYKGLIFANWDADAPDLDTYLGEAKFYMDHMLDRTEAGTEAIPGIQKWVIPCNWKFAAEQFCSDMYHAGTTSHLSGILAGLPDGVDLSELAPPTEGIQYRATWGGHGSGFYIGDPNLLLAIMGPKVTEYWTQGPAAEKASERLGSTERGQQLMAQHMTIFPTCSFLPGINTIRAWHPRGPNEIEVWAFTVVDADAPEEMKEEYRQQTLRTFSAGGVFEQDDGENWVEIQQVLRGHKARSRPFNAEMGLGQTDSDNPDYPGTISYVYSEEAARGLYTQWVRMMTSPDWAALDATRPAVSESTHT

Gene
bphA1
Protein
Biphenyl dioxygenase subunit alpha
Organism
Pseudomonas sp. (strain KKS102)
Length
458 amino acids
Similarity
Belongs to the bacterial ring-hydroxylating dioxygenase alpha subunit family.
Mass
51.876 kDa
Sequence
MGIYSEREVQAVPMTFKRRWTDEAIRALVDQDKGLIDPRIYADQDLYEIELERIFARSWLLLGHEAHIPKTGDYLTTYMGEDPVIMVRQKDGSIKVFLNQCRHRGMRICRSDAGNAKAFTCTYHGWAYDIAGNLVNVPYEKEAFCDKKEGDCGFDKADWGPLQARVETYKGLIFANWDAEAPDLKTYLSDAMPYMDVMLDRTEAGTTVVGGMQKWVIPCNWKFAAEQFCSDMYHAGTMAHLSGVLSSLPPEMDLTQVQMSKNGSQFRAAWGGHGSGWFINDAAILMAVMGPKITQYWTQGPAAEKAAKRLNQMPTQTMFGQHMTVFPTCSFLPGINTIRSWHPRGPNEVECGPSWSSMPMRPEDIKEEFRRQNIRTFNAGGTFEQDDGENWVEIQRGLRGHKAKSAPLCAQMGLNVPNKSNPDFPGKTAYVYAEEAARGMYHHWARMMSEPNWETLKP