Align Probable methanogen homoaconitase large subunit; HACN; EC 4.2.1.114; Homoaconitate hydratase (uncharacterized)
to candidate GFF2541 Psest_2591 3-isopropylmalate dehydratase, large subunit
Query= curated2:O27668 (428 letters) >FitnessBrowser__psRCH2:GFF2541 Length = 475 Score = 194 bits (493), Expect = 5e-54 Identities = 141/444 (31%), Positives = 212/444 (47%), Gaps = 65/444 (14%) Query: 30 VDLAMTHDGTSPPTIRTFRDIASRGGPARVWDPERIVMVFDHNVPANTIGAAE--FQRVT 87 +D + H+ TSP R +A+R + W + + DHNVP T G + + + Sbjct: 28 IDRHILHEVTSPQAFEGLR-LANR----KPWRIDANIATPDHNVPT-TKGERQGGLEAIA 81 Query: 88 REFAREQ-----------GIVNIFQNAA--GICHQVLPERGFVRPGMVIVGADSHTCTYG 134 E +R Q GI+ N GI H + PE+G PGM +V DSHT T+G Sbjct: 82 DEVSRIQVQTLDENCDDFGILEFKMNDVRQGIVHVIGPEQGATLPGMTVVCGDSHTSTHG 141 Query: 135 AFGAFATGMGATDMAMVFATGKTWFMVPEAMRIEVTGEPEGHVYAKDVILHIIGEIGVDG 194 AFGA A G+G +++ V AT + M++ V G+ V AKD++L +IG+IG G Sbjct: 142 AFGALAHGIGTSEVEHVLATQCLVAKKMKNMQVRVEGKLPFGVTAKDIVLAVIGKIGTAG 201 Query: 195 ATYRSVEFTGDTIESMDVSGRMTICNMAVEMGAKNGIMEPNRQTLDYVRAR--------- 245 ++EF G I + + GRMTICNM++E GA+ G++ + +T+ YV R Sbjct: 202 GNGHALEFAGSAIRDLSMEGRMTICNMSIEAGARVGMVAVDEKTIAYVEGRPFAPKGDDW 261 Query: 246 --TGREFRVYSSDEDSQYLEDHHFDVSDLEPQVA--------------CPDDVDNVYPVH 289 ++ SD+D+ + D++PQV+ PD PV Sbjct: 262 DKAVELWQGLVSDDDAVFDTVVELKAEDIKPQVSWGTSPEMVLAVDQKVPDPAVEADPVK 321 Query: 290 R-----------------VEGTHIDEAFLGSCTNGRYEDLKIAAEVIGDRRVHEDVR-FI 331 R + +D F+GSCTN R EDL+ AAEV R+V +V+ + Sbjct: 322 RDSIMRALKYMGLNANQPITEIKLDRVFIGSCTNSRIEDLRAAAEVAKGRKVAANVKQAL 381 Query: 332 VSPASREIYLKALEDGIIETFIRAGAIVCNPGCGPCLGAHMGVLAPGEVSIATTNRNFRG 391 V P S + +A +G+ + F+ AG PGC CL + L GE +T+NRNF G Sbjct: 382 VVPGSGLVKQQAEAEGLDKIFVEAGFEWREPGCSMCLAMNPDKLGSGEHCASTSNRNFEG 441 Query: 392 RMGDPASSVYLANPAVVAESAIEG 415 R G +L +PA+ A +A+ G Sbjct: 442 RQG-AGGRTHLVSPAMAAAAAVTG 464 Lambda K H 0.320 0.137 0.408 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: 504 Number of extensions: 27 Number of successful extensions: 4 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: 428 Length of database: 475 Length adjustment: 33 Effective length of query: 395 Effective length of database: 442 Effective search space: 174590 Effective search space used: 174590 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: 51 (24.3 bits)
This GapMind analysis is from Aug 03 2021. The underlying query database was built on Aug 03 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, or see changes to Amino acid biosynthesis since the publication.
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