Align Leucine-, isoleucine-, valine-, threonine-, and alanine-binding protein; LIVAT-BP; Leu/Ile/Val/Thr/Ala-binding protein (characterized)
to candidate Pf6N2E2_2921 High-affinity leucine-specific transport system, periplasmic binding protein LivK (TC 3.A.1.4.1)
Query= SwissProt::P21175 (373 letters) >FitnessBrowser__pseudo6_N2E2:Pf6N2E2_2921 Length = 375 Score = 537 bits (1383), Expect = e-157 Identities = 260/371 (70%), Positives = 314/371 (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 GGVNG QL V YDDACDPKQAVAVANKVVNDG+KFVVGH+CSSSTQPA+DIYEDEG Sbjct: 61 NAKGGVNGKQLVAVEYDDACDPKQAVAVANKVVNDGIKFVVGHLCSSSTQPASDIYEDEG 120 Query: 121 VLMITPSATAPEITSRGYKLIFRTIGLDNMQGPVAGKFIAERYKDKTIAVLHDKQQYGEG 180 V+MITP+AT+P+IT+RGYK+IFRTIGLD+ QGP AG +IA+ K K +AVLHDKQQYGEG Sbjct: 121 VVMITPAATSPDITARGYKMIFRTIGLDSAQGPAAGNYIADHVKPKIVAVLHDKQQYGEG 180 Query: 181 IATEVKKTVEDAGIKVAVFEGLNAGDKDFNALISKLKKAGVQFVYFGGYHPEMGLLLRQA 240 IA+ VKKT+ED G+KVAVFEG+NAGDKDF+++I+KLK+A V FVY+GGYHPE+GL+LRQ+ Sbjct: 181 IASAVKKTLEDKGVKVAVFEGVNAGDKDFSSMIAKLKQANVDFVYYGGYHPELGLILRQS 240 Query: 241 KQAGLDARFMGPEGVGNSEITAIAGDASEGMLATLPRAFEQDPKNKALIDAFKAKNQDPS 300 ++ GL A+FMGPEGVGN I+ IA ++SEG+L TLP++F+QDP N AL DAFKAK +DPS Sbjct: 241 QEKGLKAKFMGPEGVGNDSISQIAKESSEGLLVTLPKSFDQDPANIALADAFKAKKEDPS 300 Query: 301 GIFVLPAYSAVTVIAKGIEKAGEADPEKVAEALRANTFETPTGNLGFDEKGDLKNFDFTV 360 G FV P+YSAVTVIA I+ A D KVAEA+ A TF+TPTG+L FD+ GDLK+F F V Sbjct: 301 GPFVFPSYSAVTVIADAIKAAKSEDAGKVAEAIHAGTFKTPTGDLSFDKNGDLKDFKFVV 360 Query: 361 YEWHKDATRTE 371 YEWH +TE Sbjct: 361 YEWHFGKPKTE 371 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