TA Pair: PHD-MazFn
#OrganismToxinAntitoxinLocus IDReplicon
1Brucella ovis ATCC 258404008 BOV_A0496BOV_A0497NC_009504
2Caulobacter sp. K315069 Caul_5353Caul_5354NC_010333
3Nitrobacter hamburgensis X142630 Nham_4512Nham_4513NC_007960
4Ochrobactrum anthropi ATCC 491884334 Oant_4744Oant_4743NC_009670
5Phenylobacterium zucineum HLK15933 PHZ_p0303PHZ_p0304NC_011143
6Rhodopseudomonas palustris BisA532998 RPE_3948RPE_3949NC_008435
7Rhodospirillum rubrum ATCC 111702253 Rru_A1801Rru_A1800NC_007643
8Xanthobacter autotrophicus Py24393 Xaut_4992Xaut_4991NC_009717
9Xanthobacter autotrophicus Py24395 Xaut_5008Xaut_5007NC_009717

Antitoxin domain: PHD. PHD folds into an interleaved type of Zn-finger chelating 2 Zn ions in a similar manner to that of the RING and FYVE domains. Several PHD fingers have been identified as binding modules of methylated histone H3.

Toxin domain: MazFn.

The solution structure of the N-domain of the transcription factor abrB [PDB ID: 1YSF] [PudMed:15939023]
(1) Makarova KS et al. (2009) Comprehensive comparative-genomic analysis of type 2 toxin-antitoxin systems and related mobile stress response systems in prokaryotes. Biol Direct 4:19. [PudMed:19493340] in_silico