Align L-cysteine desulfidase (EC 4.4.1.28) (characterized)
to candidate H281DRAFT_03911 H281DRAFT_03911 cysteine synthase
Query= BRENDA::F4K5T2 (323 letters) >lcl|FitnessBrowser__Burk376:H281DRAFT_03911 H281DRAFT_03911 cysteine synthase Length = 300 Score = 206 bits (525), Expect = 4e-58 Identities = 123/304 (40%), Positives = 178/304 (58%), Gaps = 15/304 (4%) Query: 11 VTELIGNTPMVYLNKIVDGCVAR----IAAKLEMMEPCSSIKDRIAYSMIKDAEDKGLIT 66 + + IGNTP+V L ++ D + + AKLE P S+KDR A SMIK AE +G I Sbjct: 6 IEDTIGNTPLVQLVRLPDDEIRSRNNVVLAKLEGNNPAGSVKDRPALSMIKKAEARGRIK 65 Query: 67 PGKSTLIEATGGNTGIGLASIGASRGYKVILLMPSTMSLERRIILRALGAEVHLTDISIG 126 PG TLIE+T GNTGI LA A RGYK++L+MP +S+ERR + A GA++ LT ++ G Sbjct: 66 PG-DTLIESTSGNTGIALAMAAAIRGYKMVLIMPEDLSVERRQSMAAYGAQIILTPVTGG 124 Query: 127 IKGQLEKAKEILSKTPGGYIPHQFINPENPEIHYRTTGPEIWRDSAGKVDILVAGVGTGG 186 ++ + A++ + + G I QF NP+NP H TGPEIWRD+ G++ V+ +GT G Sbjct: 125 MEYARDLAEQ-MQRDGKGIILDQFANPDNPAAHVEGTGPEIWRDTEGRITHFVSSMGTTG 183 Query: 187 TVTGTGKFLKEKNKDIKVCVVEPSESAVLSGGKPGPHLIQGIGSGEIPANLDLSIVDEII 246 T+ G +LK++N+ I++ +P E + + G + P +P D S VD + Sbjct: 184 TIMGVSSYLKQQNQAIEIVGAQPEEGSRIPGIRKWP-------EAYMPKIFDRSRVDRVE 236 Query: 247 QVTGEEAIETTKLLAIKEGLLVGISSGASAAAALKVAKRPENVGKLIVVIFPSGGERYLS 306 V+ A + LA EG+ GISSG + AL+VA++ EN IV I G+RYLS Sbjct: 237 NVSQAAAEAMARRLASVEGIFAGISSGGACEVALRVARQVENA--TIVFIVCDRGDRYLS 294 Query: 307 TELF 310 T +F Sbjct: 295 TGVF 298 Lambda K H 0.314 0.136 0.378 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: 236 Number of extensions: 12 Number of successful extensions: 5 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: 323 Length of database: 300 Length adjustment: 27 Effective length of query: 296 Effective length of database: 273 Effective search space: 80808 Effective search space used: 80808 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: 42 (21.9 bits) S2: 48 (23.1 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