2.A.1.70.8
Uncharacterized MFS porter of 397 aas and 12 TMSs, annotated in Uniprot as ArsP.  The encoding gene is next to genes encoding ArsH (Q1LRL2), an NADPH-dependent FMN reductase, ArsC1, an arsenate reductase (Q1LRL1) and an arsenite efflux pump, ArsB or Acr3 of 10 TMSs (ArsB; Q1LRL0; ACR family, TC# 2.A.59). This MFS family shows greatest similarity with families 2.A.1.11 and 2.A.1.13, both which transport anionic speices, for example, oxalate, formate and pyruvate (TC# 2.A.1.11) and monocarboxylates (TC# 2.A.1.13).  It is 32% identical and 52% similar to ArsK (TC# 2.A.1.70.9) which is an arsenite/antimonite exporter (Shi et al. 2018).