Align cysteine synthase (EC 2.5.1.47) (characterized)
to candidate GFF3937 PS417_20160 cysteine synthase
Query= BRENDA::P16703 (303 letters) >lcl|FitnessBrowser__WCS417:GFF3937 PS417_20160 cysteine synthase Length = 300 Score = 416 bits (1068), Expect = e-121 Identities = 208/292 (71%), Positives = 241/292 (82%) Query: 3 TLEQTIGNTPLVKLQRMGPDNGSEVWLKLEGNNPAGSVKDRAALSMIVEAEKRGEIKPGD 62 T+ +GNTPLV+LQRM D + + LKLEGNNPAGSVKDR ALSMI AE RG+IKPGD Sbjct: 7 TIADCVGNTPLVRLQRMAGDTSNTLLLKLEGNNPAGSVKDRPALSMITRAELRGQIKPGD 66 Query: 63 VLIEATSGNTGIALAMIAALKGYRMKLLMPDNMSQERRAAMRAYGAELILVTKEQGMEGA 122 LIEATSGNTGIALAM AA+KGY+M L+MPDN S ER+AAM AYGA+LILVT+E GMEGA Sbjct: 67 TLIEATSGNTGIALAMAAAIKGYKMILIMPDNGSAERKAAMTAYGAQLILVTQEDGMEGA 126 Query: 123 RDLALEMANRGEGKLLDQFNNPDNPYAHYTTTGPEIWQQTGGRITHFVSSMGTTGTITGV 182 RDLA MA G G +LDQF N DNP AHYT+TGPEIW+QT G ITHFVSSMGTTGTI G Sbjct: 127 RDLAERMAAEGRGLVLDQFANGDNPEAHYTSTGPEIWRQTQGTITHFVSSMGTTGTIMGN 186 Query: 183 SRFMREQSKPVTIVGLQPEEGSSIPGIRRWPTEYLPGIFNASLVDEVLDIHQRDAENTMR 242 SR+++EQ+ + IVGLQP EGS+IPGIRRWP EYLP I+N+S VD ++D+ QR+AE+T R Sbjct: 187 SRYLKEQNPAIQIVGLQPMEGSAIPGIRRWPEEYLPKIYNSSRVDRIIDMAQREAEDTTR 246 Query: 243 ELAVREGIFCGVSSGGAVAGALRVAKANPDAVVVAIICDRGDRYLSTGVFGE 294 LA EGIFCGVSSGGAVAG LR++K +AV+VAIICDRGDRYLSTG+F E Sbjct: 247 RLAREEGIFCGVSSGGAVAGMLRLSKEVENAVIVAIICDRGDRYLSTGIFDE 298 Lambda K H 0.316 0.134 0.386 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: 371 Number of extensions: 12 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: 303 Length of database: 300 Length adjustment: 27 Effective length of query: 276 Effective length of database: 273 Effective search space: 75348 Effective search space used: 75348 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: 48 (23.1 bits)
Align candidate GFF3937 PS417_20160 (cysteine synthase)
to HMM TIGR01138 (cysM: cysteine synthase B (EC 2.5.1.47))
# hmmsearch :: search profile(s) against a sequence database # HMMER 3.3.1 (Jul 2020); http://hmmer.org/ # Copyright (C) 2020 Howard Hughes Medical Institute. # Freely distributed under the BSD open source license. # - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - # query HMM file: ../tmp/path.aa/TIGR01138.hmm # target sequence database: /tmp/gapView.25571.genome.faa # - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Query: TIGR01138 [M=290] Accession: TIGR01138 Description: cysM: cysteine synthase B Scores for complete sequences (score includes all domains): --- full sequence --- --- best 1 domain --- -#dom- E-value score bias E-value score bias exp N Sequence Description ------- ------ ----- ------- ------ ----- ---- -- -------- ----------- 2.9e-165 534.9 0.4 3.2e-165 534.7 0.4 1.0 1 lcl|FitnessBrowser__WCS417:GFF3937 PS417_20160 cysteine synthase Domain annotation for each sequence (and alignments): >> lcl|FitnessBrowser__WCS417:GFF3937 PS417_20160 cysteine synthase # score bias c-Evalue i-Evalue hmmfrom hmm to alifrom ali to envfrom env to acc --- ------ ----- --------- --------- ------- ------- ------- ------- ------- ------- ---- 1 ! 534.7 0.4 3.2e-165 3.2e-165 1 290 [] 7 296 .. 7 296 .. 1.00 Alignments for each domain: == domain 1 score: 534.7 bits; conditional E-value: 3.2e-165 TIGR01138 1 tilklvGntplvrlkrllpeedsevlvklegnnpaGsvkdrpalsmiveaekrGeikeGdvlieatsGntGiala 75 ti+++vGntplvrl+r+++++++++l+klegnnpaGsvkdrpalsmi++ae+rG+ik+Gd+lieatsGntGiala lcl|FitnessBrowser__WCS417:GFF3937 7 TIADCVGNTPLVRLQRMAGDTSNTLLLKLEGNNPAGSVKDRPALSMITRAELRGQIKPGDTLIEATSGNTGIALA 81 89************************************************************************* PP TIGR01138 76 mvaalkGykvkllmpdnvseerkaalkayGaelilvdkeeGmeGardlarelvrkgeeklldqfnnpdnpkahyt 150 m+aa+kGyk++l+mpdn s+erkaa++ayGa+lilv++e+GmeGardla++++ +g++ +ldqf+n+dnp+ahyt lcl|FitnessBrowser__WCS417:GFF3937 82 MAAAIKGYKMILIMPDNGSAERKAAMTAYGAQLILVTQEDGMEGARDLAERMAAEGRGLVLDQFANGDNPEAHYT 156 *************************************************************************** PP TIGR01138 151 stGieiwqqtkGrithfvsslGttGtimGvsrflkeqnpavqivGlqpaegsaieGlrrieseylpgifdaslvd 225 stG+eiw+qt+G ithfvss+GttGtimG sr+lkeqnpa+qivGlqp+egsai+G+rr+++eylp+i+++s+vd lcl|FitnessBrowser__WCS417:GFF3937 157 STGPEIWRQTQGTITHFVSSMGTTGTIMGNSRYLKEQNPAIQIVGLQPMEGSAIPGIRRWPEEYLPKIYNSSRVD 231 *************************************************************************** PP TIGR01138 226 rvvdveqedaediarelakkegifvGvssGgavaaalrlarelekavvvaiicdrGdrylstgvf 290 r++d+ q++aed+ r+la++egif+GvssGgava++lrl++e+e+av+vaiicdrGdrylstg+f lcl|FitnessBrowser__WCS417:GFF3937 232 RIIDMAQREAEDTTRRLAREEGIFCGVSSGGAVAGMLRLSKEVENAVIVAIICDRGDRYLSTGIF 296 ***************************************************************98 PP Internal pipeline statistics summary: ------------------------------------- Query model(s): 1 (290 nodes) Target sequences: 1 (300 residues searched) Passed MSV filter: 1 (1); expected 0.0 (0.02) Passed bias filter: 1 (1); expected 0.0 (0.02) Passed Vit filter: 1 (1); expected 0.0 (0.001) Passed Fwd filter: 1 (1); expected 0.0 (1e-05) Initial search space (Z): 1 [actual number of targets] Domain search space (domZ): 1 [number of targets reported over threshold] # CPU time: 0.01u 0.01s 00:00:00.02 Elapsed: 00:00:00.00 # Mc/sec: 9.45 // [ok]
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