Align Trehalose/maltose-binding protein aka TT_C1627, component of The trehalose/maltose/sucrose/palatinose porter (TTC1627-9) plus MalK1 (ABC protein, shared with 3.A.1.1.24) (Silva et al. 2005; Chevance et al., 2006). The receptor (TTC1627) binds disaccharide alpha-glycosides, namely trehalose (alpha-1,1), sucrose (alpha-1,2), maltose (alpha-1,4), palatinose (alpha-1,6) and glucose (characterized)
to candidate Pf1N1B4_5112 Maltose/maltodextrin ABC transporter, substrate binding periplasmic protein MalE
Query= TCDB::Q72H68 (429 letters) >lcl|FitnessBrowser__pseudo1_N1B4:Pf1N1B4_5112 Maltose/maltodextrin ABC transporter, substrate binding periplasmic protein MalE Length = 390 Score = 353 bits (907), Expect = e-102 Identities = 175/388 (45%), Positives = 244/388 (62%), Gaps = 1/388 (0%) Query: 42 VGEGGRWMKEMVEAWGKKTGTRVEYIDSPADTNDRLALYQQYWAARSPDVDVYMIDVIWP 101 VG + KE V+AW K+TG VE + +P +RL+ YQQ +A+S D+D+ ID++WP Sbjct: 1 VGAELQLCKEAVQAWSKQTGNNVEVVSTPNSATERLSFYQQILSAQSSDIDIIQIDMVWP 60 Query: 102 GIVAPHALDLKPYLTEAELKEFFPRIVQNNTIRGKLTSLPFFTDAGILYYRKDLLEKYGY 161 G++A H LDL+ L + +F V N T+ G+L ++P+FTD+G+LYYRKDLLEKY Sbjct: 61 GMLAKHLLDLREVLPANATQGYFQAQVDNATVNGRLVTMPWFTDSGLLYYRKDLLEKYNQ 120 Query: 162 TSPPRTWNELEQMAERVMEGERRAGNRDFWGFVFQGKPYEGLTCDALEWIYSHGGGRIVE 221 PRTW E+ A + + ER AGN + WG++FQG+ YEGLTC+ALEWI S G +V Sbjct: 121 -QVPRTWEEMTATARNIQQAERTAGNPNAWGYIFQGRAYEGLTCNALEWISSQPEGGLVN 179 Query: 222 PDGTISVNNGRAALALNRAHGWVGRIAPQGVTSYAEEEARNVWQQGNSLFMRNWPYAYAL 281 G I VN+ + AL A WVG I+P+GV +Y EEE R V+Q GN+LFMRNWPY +AL Sbjct: 180 SRGDIVVNSQASRTALTLAKSWVGDISPRGVLNYTEEEGRGVFQSGNALFMRNWPYVWAL 239 Query: 282 GQAEGSPIRGKFGVTVLPKASADAPNAATLGGWQLMVSAYSRYPKEAVDLVKYLASYEVQ 341 Q + S ++ K GV LP+ +A+TLGGW L VS YS +PK A +LV YL S + Q Sbjct: 240 VQGQDSAVKDKVGVAPLPRGGETGTHASTLGGWGLAVSRYSAHPKLAAELVSYLTSAQEQ 299 Query: 342 KDNAVRLSRLPTRPALYTDRDVLARNPWFRDLLPVFQNAVSRPSDVAGARYNQVSEAIWT 401 K A+ + P +LY D ++LA P++ L + + V RP+ + RY +VS A + Sbjct: 300 KHRALIGAYNPVIESLYQDPELLAAMPYYAQLHSILNDGVMRPASITADRYPRVSNAFFD 359 Query: 402 EVHSVLTGRKKGEQAVRDLEARIRRILR 429 VH VL G +QA+ +LE+ + RI R Sbjct: 360 RVHGVLAGELPVDQALAELESELTRIKR 387 Lambda K H 0.319 0.135 0.418 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: 461 Number of extensions: 22 Number of successful extensions: 2 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: 429 Length of database: 390 Length adjustment: 31 Effective length of query: 398 Effective length of database: 359 Effective search space: 142882 Effective search space used: 142882 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 (21.7 bits) S2: 50 (23.9 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 the paper from 2019 on GapMind for amino acid biosynthesis, the paper from 2022 on GapMind for carbon sources, or view the source code.
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