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B6db families:
Description Diaminobutyrate-2-oxoglutarate transaminase
Notes This rather compact family (related to, GABA aminotransferase) includes bacterial enzymes catalyzing the first step in the ectoine biosynthesis pathway. The enzymes from Halomonas require potassium for function.
PLP Fold Type I
PLP-dependent Domain
Domain alignment
Domain hmm
Fold type I

Number of sequences
Sequences in seed alignment
BacteriaAAK95337 (Moraxella catarrhalis); AEJ36141 (Prauserella alba); AF316874_2 (Sporosarcina pasteurii); NP_884153 (Bordetella parapertussis ); AAK01505 (Pseudomonas aeruginosa); NP_444034 (Rhizobium sp. NGR234); BAB04638 (Bacillus halodurans); WP_015737573 (Paenibacillus lautus Y412MC10); RHBA_RHIME (Rhizobium meliloti); AAG05801 (Pseudomonas aeruginosa PAO1); DAT_ACIBA (Acinetobacter baumannii); AZA08149 (Bacillus clausii NIOT-DSB04); CAE09965 (Wolinella succinogenes); DAT_HAEIN (Haemophilus influenzae); ZP_00067758 (Microbulbifer degradans); ECTB_MARHA (Marinococcus halophilus); AAQ60472 (Chromobacterium violaceum); AAS02095 (Streptomyces chrysomallus); NP_106518 (Mesorhizobium loti); AWB74157 (Vibrio cholerae ); ZP_00123759 (Pseudomonas syringae pv. syringae B728a); ZP_00122874 (Haemophilus somnus ); ECB2_HALEL (Halomonas elongata); ECB1_HALEL (Halomonas elongata); CAE16635 (Photorhabdus luminescens ); NP_657172 (Bacillus anthracis); NP_691439 (Oceanobacillus iheyensis); AAY96771 (Methylobacter alcaliphilus); AAK00182 (Bradyrhizobium sp.); CAD75280 (Pirellula sp.);

DISPLAY: Fasta format, alignment, hmm, hmm_local

Reference sequence DAT_ACIBA
Domain interval 30-369
Catalytic site 289 K
 Anburajan L, Meena B, Vinithkumar NV, Kirubagaran R, Dharani G (2019) Functional characterization of a major compatible solute in Deep Sea halophilic eubacteria of active volcanic Barren Island, Andaman and Nicobar Islands, India Infect Genet Evol 73 261-265.

 Richter AA, Mais C-N, Czech L, Geyer K, Hoeppner A, Smits Sander HJ, Erb TJ, Bange G, Bremer E (2019) Biosynthesis of the Stress-Protectant and Chemical Chaperon Ectoine: Biochemistry of the Transaminase EctB Front Microbiol 10 2811.

 Lee J, Sperandio V, Frantz DE, Longgood J, Camilli A, Phillips MA, Michael AJ. (2009) An alternative polyamine biosynthetic pathway is widespread in bacteria and essential for biofilm formation in Vibrio cholerae J Biol Chem 284 9899-907.

 Vandenende C.S.; Vlasschaert, M.; Seah, S.Y. (2004) Functional characterization of an aminotransferase required for pyoverdine siderophore biosynthesis in Pseudomonas aeruginosa PAO1 J Bacteriol 186 5596-602.

 Ono, H.; Sawada, K.; Khunajakr, N.; Tao, T.; Yamamoto, M.; Hiramoto, M.; Shinmyo, A.; Takano, M.; Murooka, Y. (1999) Characterization of biosynthetic enzymes for ectoine as a compatible solute in a moderately halophilic eubacterium, Halomonas elongata J Bacteriol 181 91-9.

 Ikai, H.; Yamamoto, S. (1998) Two genes involved in the 1,3-diaminopropane production pathway in Haemophilus influenzae Biol Pharm Bull 21 170-3.

 Ikai, H.; Yamamoto, S. (1997) Identification and analysis of a gene encoding L-2,4-diaminobutyrate:2- ketoglutarate 4-aminotransferase involved in the 1,3-diaminopropane production pathway in Acinetobacter baumannii J Bacteriol 179 5118-25.

Articles on
last changed 2020/03/01 11:18

B6db families