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 209027 DVU0098 polyamine ABC transporter, ATP-binding protein
Query= TCDB::Q9X103 (369 letters) >MicrobesOnline__882:209027 Length = 368 Score = 259 bits (661), Expect = 1e-73 Identities = 139/291 (47%), Positives = 197/291 (67%), Gaps = 13/291 (4%) Query: 6 VVLENVTKVYENKVVAVKNANLVVEDKEFVVLLGPSGCGKTTTLRMIAGLEEITDGKIYI 65 + L VTK +E+ A+ N +L + + EF+ LLGPSGCGKTT LR+I+G E+ G I + Sbjct: 8 IELRGVTKNFED-TCALDNIDLEIRNGEFLTLLGPSGCGKTTILRLISGFEKPDAGVITL 66 Query: 66 DGKVVNDVEPKDRDIAMVFQNYALYPHMTVYENMAFGLKLRKYPKDEIDRRVREAAKILG 125 G+ ++D P+ R + VFQNYAL+PHM+V EN+ FGL++++ PKDEI RRV +A +++ Sbjct: 67 KGQRMDDAPPEARQVNTVFQNYALFPHMSVRENVGFGLRMQRRPKDEIARRVHDALRMVH 126 Query: 126 IENLLDRKPRQLSGGQRQRVAVGRAIVRNPKVFLFDEPLSNLDAKLRVQMRSELKKLHHR 185 +E DR+PRQLSGGQ+QRVA+ RA+V NP V L DEP S LD KLR QM+ E+K L + Sbjct: 127 LEAHADRRPRQLSGGQQQRVAIARAVVNNPLVLLLDEPFSALDYKLRKQMQLEIKHLQRQ 186 Query: 186 LQATIIYVTHDQVEAMTMADKIVVMKDGEIQQIGTPHEIYNSPANVFVAGFIGSPPMNFV 245 L T ++VTHDQ EA M+D++VVM DG+I+QIG+P EIY PAN++VA F+G +N + Sbjct: 187 LGITFVFVTHDQEEAFAMSDRVVVMNDGKIEQIGSPQEIYEEPANLYVARFVGE--INIL 244 Query: 246 NARVVRGEG-GLW---IQASGFKVKVPKEFEDKLANYIDKEIIFGIRPEDI 292 NA + G GL+ I+ F ++ + F DK + +RPED+ Sbjct: 245 NAVIAANHGDGLYDAVIEGVTFPIRSQRTFAPG-----DKVNVL-LRPEDL 289 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: 374 Number of extensions: 14 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: 369 Length of database: 368 Length adjustment: 30 Effective length of query: 339 Effective length of database: 338 Effective search space: 114582 Effective search space used: 114582 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