>gnl|CDD|73016 cd03257, ABC_NikE_OppD_transporters, The ABC transporter subfamily specific for the transport of dipeptides, oligopeptides (OppD), and nickel (NikDE). The NikABCDE system of E. coli belongs to this family and is composed of the periplasmic binding protein NikA, two integral membrane components (NikB and NikC), and two ATPase (NikD and NikE). The NikABCDE transporter is synthesized under anaerobic conditions to meet the increased demand for nickel resulting from hydrogenase synthesis. The molecular mechanism of nickel uptake in many bacteria and most archaea is not known. Many other members of this ABC family are also involved in the uptake of dipeptides and oligopeptides. The oligopeptide transport system (Opp) is a five-component ABC transport composed of a membrane-anchored substrate binding proteins (SRP), OppA, two transmembrane proteins, OppB and OppC, and two ATP-binding domains, OppD and OppF.. Length = 228

Score = 132 bits (334), Expect = 3e-31 Identities = 72/242 (29%), Positives = 110/242 (45%), Gaps = 33/242 (13%) Query: 350 LKIKNGHIVFNNVSFSYNHHNCIFKGISFEIAPSKKTALIGESGVGKSTVAKLLYRLYDI 409 L++KN + F +SF I + L+GESG GKST+A+ + L Sbjct: 2 LEVKNLSVSFPT----GGGSVKALDDVSFSIKKGETLGLVGESGSGKSTLARAILGLLKP 57 Query: 410 KGGIITIDGQDIKKITKESL---RQTIGIIPQD---------TI--LFNDTLR-YNILYG 454 G I DG+D+ K+++ R+ I ++ QD TI + LR + L Sbjct: 58 TSGSIIFDGKDLLKLSRRLRKIRRKEIQMVFQDPMSSLNPRMTIGEQIAEPLRIHGKLSK 117 Query: 455 NPNASDQELCAAVEVAQLKSFIMKLPNGYDTVVGERGLKLSGGEKQRVSIARAILKNPPI 514 + L V V + + + P+ +LSGG++QRV+IARA+ NP + Sbjct: 118 KEARKEAVLLLLVGVGLPEEVLNRYPH-----------ELSGGQRQRVAIARALALNPKL 166 Query: 515 IIFDEATSSLDIITERHIQTALATLSKNR--TTLVIAHRLSTITD-ADNIIVFDQGTVVE 571 +I DE TS+LD+ + I L L + T L I H L + AD + V G +VE Sbjct: 167 LIADEPTSALDVSVQAQILDLLKKLQEELGLTLLFITHDLGVVAKIADRVAVMYAGKIVE 226 Query: 572 SG 573 G Sbjct: 227 EG 228

RPSBLAST alignment for GI: 254780576 and conserved domain: cd03257