Align Maltose transport system permease protein malG aka TT_C1629, 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 PP_2263 PP_2263 Sugar ABC transporter, permease protein
Query= TCDB::Q72H66 (280 letters) >lcl|FitnessBrowser__Putida:PP_2263 PP_2263 Sugar ABC transporter, permease protein Length = 266 Score = 146 bits (368), Expect = 5e-40 Identities = 91/276 (32%), Positives = 138/276 (50%), Gaps = 13/276 (4%) Query: 3 RASRLLGRLFFYLLVVFVVVYSVFPFYWAVISSFKPSDALFSPDPSFLPVPFTLEHYENV 62 R S L FF+LLV P YW + SFK S+A + P FTL++Y + Sbjct: 4 RKSMALLLYFFFLLV---------PIYWLLNMSFK-SNAEILGGLTLWPQAFTLDNYRVI 53 Query: 63 FLQANFGRNLLNSLIVAGGATLLSLVLGVLAAYALGRLPFPPKNAVMYIVLSMTMFPQIA 122 F A++ +NSL TL+SL++ + AAYA R F + + +L+ M P Sbjct: 54 FTDASWYSGYINSLYYVCLNTLISLLVALPAAYAFSRYRFLGDRHLFFWLLTNRMAPPAV 113 Query: 123 VLGGLFLLLRQTGLFNTHLGLILTYLLFTLPFTVWVLVGYFRGLPRELEEAAYVDGATPL 182 L F L GLF+TH+ + L + LF +P VW+L G+ G+PRE++E AY+DG + Sbjct: 114 FLLPFFQLYSSIGLFDTHIAVALAHCLFNVPLAVWILEGFMSGVPREIDETAYIDGYSFP 173 Query: 183 QTLLKVMLPLTGPGLVTTGLLAFIAAWNEYLFALTFTVGDSVKTVPPAIASFGGATPFEI 242 + +K+ +PL G G+ T F+ +W E L A T T SV P A + I Sbjct: 174 RFFVKIFIPLIGSGIGVTAFFCFMFSWVELLLARTLT---SVNAKPIAAVMTRTVSASGI 230 Query: 243 PWGSIMAASVVVTVPLVVLVLVFQQRIVAGLTAGAV 278 WG + AA V+ +P ++++ + + G G V Sbjct: 231 DWGVLAAAGVLTILPGMLVIWFVRNHVAKGFALGRV 266 Lambda K H 0.329 0.145 0.439 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: 131 Number of extensions: 4 Number of successful extensions: 1 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: 280 Length of database: 266 Length adjustment: 25 Effective length of query: 255 Effective length of database: 241 Effective search space: 61455 Effective search space used: 61455 Neighboring words threshold: 11 Window for multiple hits: 40 X1: 15 ( 7.1 bits) X2: 38 (14.6 bits) X3: 64 (24.7 bits) S1: 40 (21.8 bits) S2: 47 (22.7 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 preprint 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