Align MalK; aka Sugar ABC transporter, ATP-binding protein, component of The maltose, maltotriose, mannotetraose (MalE1)/maltose, maltotriose, trehalose (MalE2) porter (Nanavati et al., 2005). For MalG1 (823aas) and MalG2 (833aas), the C-terminal transmembrane domain with 6 putative TMSs is preceded by a single N-terminal TMS and a large (600 residue) hydrophilic region showing sequence similarity to MLP1 and 2 (9.A.14; e-12 & e-7) as well as other proteins (characterized)
to candidate Echvi_2123 Echvi_2123 ABC-type spermidine/putrescine transport systems, ATPase components
Query= TCDB::Q9X103 (369 letters) >FitnessBrowser__Cola:Echvi_2123 Length = 318 Score = 161 bits (408), Expect = 2e-44 Identities = 90/240 (37%), Positives = 151/240 (62%), Gaps = 6/240 (2%) Query: 3 MAQVVLENVTKVYENKVVAVKNANLVVEDKEFVVLLGPSGCGKTTTLRMIAGLEEITDGK 62 M+ + + V+K Y+ +A+++ +L V+ V ++G SG GK++ LR+IAGLE + G Sbjct: 1 MSYLKVSEVSKRYDAGSLALEDFSLQVKRGGVVSMVGESGSGKSSLLRIIAGLEVQSAGV 60 Query: 63 IYI-DGKVVNDVE---PKDRDIAMVFQNYALYPHMTVYENMAFGLKLRKYPKDEIDRRVR 118 +++ D K++N + P +I ++ Q Y LYP+ TV EN+A L L Y K R Sbjct: 61 VHLGDQKILNPAQKLVPGYDEIQLIHQEYKLYPNSTVEENIARPLLL--YDKAYQKERTA 118 Query: 119 EAAKILGIENLLDRKPRQLSGGQRQRVAVGRAIVRNPKVFLFDEPLSNLDAKLRVQMRSE 178 E ++L + D+KPRQLSGGQ+Q+VA+GRA+ P+V L DEP S+LDA + + E Sbjct: 119 EILELLSLRAFKDKKPRQLSGGQQQKVAIGRALSIEPEVLLLDEPFSSLDAIQKRDLIEE 178 Query: 179 LKKLHHRLQATIIYVTHDQVEAMTMADKIVVMKDGEIQQIGTPHEIYNSPANVFVAGFIG 238 LK++ L+ T+I+VTHD +A+ M++++++++ G++ Q G E++ PA+ +VA G Sbjct: 179 LKEIFDALEVTVIFVTHDVDDALLMSEELLIIQKGKLLQQGNVREVFRKPASAYVARLFG 238 Lambda K H 0.319 0.138 0.387 Gapped Lambda K H 0.267 0.0410 0.140 Matrix: BLOSUM62 Gap Penalties: Existence: 11, Extension: 1 Number of Sequences: 1 Number of Hits to DB: 237 Number of extensions: 10 Number of successful extensions: 3 Number of sequences better than 1.0e-02: 1 Number of HSP's gapped: 1 Number of HSP's successfully gapped: 1 Length of query: 369 Length of database: 318 Length adjustment: 29 Effective length of query: 340 Effective length of database: 289 Effective search space: 98260 Effective search space used: 98260 Neighboring words threshold: 11 Window for multiple hits: 40 X1: 16 ( 7.4 bits) X2: 38 (14.6 bits) X3: 64 (24.7 bits) S1: 41 (21.8 bits) S2: 49 (23.5 bits)
This GapMind analysis is from Sep 17 2021. The underlying query database was built on Sep 17 2021.
Each pathway is defined by a set of rules based on individual steps or genes. Candidates for each step are identified by using ublast (a fast alternative to protein BLAST) against a database of manually-curated proteins (most of which are experimentally characterized) or by using HMMer with enzyme models (usually from TIGRFam). Ublast hits may be split across two different proteins.
A candidate for a step is "high confidence" if either:
Otherwise, a candidate is "medium confidence" if either:
Other blast hits with at least 50% coverage are "low confidence."
Steps with no high- or medium-confidence candidates may be considered "gaps." For the typical bacterium that can make all 20 amino acids, there are 1-2 gaps in amino acid biosynthesis pathways. For diverse bacteria and archaea that can utilize a carbon source, there is a complete high-confidence catabolic pathway (including a transporter) just 38% of the time, and there is a complete medium-confidence pathway 63% of the time. Gaps may be due to:
GapMind relies on the predicted proteins in the genome and does not search the six-frame translation. In most cases, you can search the six-frame translation by clicking on links to Curated BLAST for each step definition (in the per-step page).
For more information, see:
If you notice any errors or omissions in the step descriptions, or any questionable results, please let us know
by Morgan Price, Arkin group, Lawrence Berkeley National Laboratory