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 207786 DVU2299 glycine/betaine/L-proline ABC transporter, ATP binding protein
Query= TCDB::Q9X103 (369 letters) >MicrobesOnline__882:207786 Length = 397 Score = 174 bits (441), Expect = 4e-48 Identities = 92/225 (40%), Positives = 139/225 (61%), Gaps = 6/225 (2%) Query: 20 VAVKNANLVVEDKEFVVLLGPSGCGKTTTLRMIAGLEEITDGKIYIDGKVVNDVEP---- 75 V V A+ VE+ E VV++G SG GK+T +R + L E T G + +DG+ V + Sbjct: 41 VGVDRASFDVEEGEIVVVMGLSGSGKSTLVRCLNRLIEPTAGTVTVDGRDVTSMPVDELR 100 Query: 76 --KDRDIAMVFQNYALYPHMTVYENMAFGLKLRKYPKDEIDRRVREAAKILGIENLLDRK 133 + R MVFQN+AL+PH TV +N AFGL+ P+ E +R+ + + +G+ + Sbjct: 101 RLRQRSFGMVFQNFALFPHRTVLQNAAFGLEAMGVPRAERERQAMVSLERVGLAEWAASR 160 Query: 134 PRQLSGGQRQRVAVGRAIVRNPKVFLFDEPLSNLDAKLRVQMRSELKKLHHRLQATIIYV 193 P QLSGG +QRV + RA+ +P + L DE S LD +R M+ EL +L LQ TI+++ Sbjct: 161 PAQLSGGMQQRVGLARALSLDPDILLMDEAFSALDPLIRRDMQDELLRLQDDLQKTIVFI 220 Query: 194 THDQVEAMTMADKIVVMKDGEIQQIGTPHEIYNSPANVFVAGFIG 238 +HD EA+ + D+IV+M+DG + QIGTP +I +PA+ +VA F+G Sbjct: 221 SHDLDEALKLGDRIVLMRDGAVVQIGTPEDILTNPADDYVARFVG 265 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: 323 Number of extensions: 16 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: 369 Length of database: 397 Length adjustment: 30 Effective length of query: 339 Effective length of database: 367 Effective search space: 124413 Effective search space used: 124413 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: 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:
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