Align Leucine-, isoleucine-, valine-, threonine-, and alanine-binding protein; LIVAT-BP; Leu/Ile/Val/Thr/Ala-binding protein (characterized)
to candidate Pf1N1B4_3218 High-affinity leucine-specific transport system, periplasmic binding protein LivK (TC 3.A.1.4.1)
Query= SwissProt::P21175 (373 letters) >FitnessBrowser__pseudo1_N1B4:Pf1N1B4_3218 Length = 375 Score = 536 bits (1382), Expect = e-157 Identities = 260/372 (69%), Positives = 314/372 (84%) Query: 1 MKKGTQRLSRLFAAMAIAGFASYSMAADTIKIALAGPVTGPVAQYGDMQRAGALMAIEQI 60 M K T+++S+LFAAM +AG AS+S AADTIKI +AGP TGPVAQYGDMQ +G+ MAIEQI Sbjct: 1 MTKATKQISKLFAAMVLAGVASHSFAADTIKIGIAGPKTGPVAQYGDMQFSGSKMAIEQI 60 Query: 61 NKAGGVNGAQLEGVIYDDACDPKQAVAVANKVVNDGVKFVVGHVCSSSTQPATDIYEDEG 120 N GGV+G +LE V YDDACDPKQAVAVANKVVNDGVKFVVGH+CSSSTQPA+DIYEDEG Sbjct: 61 NAKGGVDGKKLEAVEYDDACDPKQAVAVANKVVNDGVKFVVGHLCSSSTQPASDIYEDEG 120 Query: 121 VLMITPSATAPEITSRGYKLIFRTIGLDNMQGPVAGKFIAERYKDKTIAVLHDKQQYGEG 180 V+MITP+AT+P+IT+RGYK+IFRTIGLD+ QGP AG +IA+ K K +AVLHDKQQYGEG Sbjct: 121 VIMITPAATSPDITTRGYKMIFRTIGLDSAQGPAAGNYIADHVKPKIVAVLHDKQQYGEG 180 Query: 181 IATEVKKTVEDAGIKVAVFEGLNAGDKDFNALISKLKKAGVQFVYFGGYHPEMGLLLRQA 240 IA+ VK T+E G+KVAVFEG+NAGDKDF++++SKLK+A V FVY+GGYHPE+GLLLRQ+ Sbjct: 181 IASAVKTTLEKKGVKVAVFEGINAGDKDFSSMVSKLKQANVDFVYYGGYHPELGLLLRQS 240 Query: 241 KQAGLDARFMGPEGVGNSEITAIAGDASEGMLATLPRAFEQDPKNKALIDAFKAKNQDPS 300 ++ GL A+FMGPEGVGN I+ IA +ASEG+L TLP++F+QDP N AL DAFKAK +DPS Sbjct: 241 QEKGLKAKFMGPEGVGNDSISQIAKEASEGLLVTLPKSFDQDPANIALADAFKAKKEDPS 300 Query: 301 GIFVLPAYSAVTVIAKGIEKAGEADPEKVAEALRANTFETPTGNLGFDEKGDLKNFDFTV 360 G FV P+YSAV VI +GI+ A D KVAEA+ TF+TPTG+L FDEKGDLK+F F V Sbjct: 301 GPFVFPSYSAVQVIVEGIKAAKSEDTTKVAEAIHKGTFKTPTGDLSFDEKGDLKDFKFVV 360 Query: 361 YEWHKDATRTEV 372 Y+WH +TEV Sbjct: 361 YQWHFGKPKTEV 372 Lambda K H 0.316 0.133 0.377 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: 553 Number of extensions: 19 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: 373 Length of database: 375 Length adjustment: 30 Effective length of query: 343 Effective length of database: 345 Effective search space: 118335 Effective search space used: 118335 Neighboring words threshold: 11 Window for multiple hits: 40 X1: 16 ( 7.3 bits) X2: 38 (14.6 bits) X3: 64 (24.7 bits) S1: 41 (21.6 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