Alignments for a candidate for ilvC in Synechococcus elongatus PCC 7942

GapMind for Amino acid biosynthesis

Alignments for a candidate for ilvC in Synechococcus elongatus PCC 7942

Align ketol-acid reductoisomerase (NAD+) (EC 1.1.1.382); ketol-acid reductoisomerase (NADP+) (EC 1.1.1.86) (characterized)
to candidate Synpcc7942_1552 Synpcc7942_1552 ketol-acid reductoisomerase

Query= BRENDA::C8WR67
         (344 letters)



>FitnessBrowser__SynE:Synpcc7942_1552
          Length = 327

 Score =  449 bits (1155), Expect = e-131
 Identities = 225/326 (69%), Positives = 266/326 (81%), Gaps = 1/326 (0%)

Query: 4   IYYDADISIQPLADKRIAVIGYGSQGHAHAQNLRDSGFDVVIGLRPGS-SWAKAEADGFR 62
           +YYDAD ++  L  K +A+IGYGSQGHAHA NLRDSG +VV+GL PGS S AKAEA+G +
Sbjct: 1   MYYDADANLDLLNGKTVAIIGYGSQGHAHALNLRDSGVNVVVGLYPGSKSAAKAEAEGLK 60

Query: 63  VMAVGEAVEESDVIMILLPDERQPAVYEREIRPYLTAGKALAFAHGFNIHFSQIQPPKDV 122
           V+ V EA + +D IMILLPDE Q +V+E EIRP L+AGK LAFAHGFNIHF+QI PP DV
Sbjct: 61  VLPVAEAAQAADWIMILLPDEFQKSVFENEIRPALSAGKVLAFAHGFNIHFAQIVPPADV 120

Query: 123 DVFMVAPKGPGHLVRRVYEAGGGVPALIAVHQDASGQAKDLALAYARGIGAGRAGILTTT 182
           DV M+APK PGHLVRR YE G GVP L A++QDASGQA+D A+AYA+GIG  RAGIL T+
Sbjct: 121 DVVMIAPKSPGHLVRRTYEQGQGVPCLFAIYQDASGQARDRAMAYAKGIGGTRAGILETS 180

Query: 183 FREETETDLFGEQAVLCGGLSALIKAGFETLVEAGYQPEIAYFECLHEMKLIVDLIYEGG 242
           FREETETDLFGEQAVLCGGLSALIKAGFETLVEAGYQPE+AYFECLHE+KLIVDLI EGG
Sbjct: 181 FREETETDLFGEQAVLCGGLSALIKAGFETLVEAGYQPELAYFECLHEVKLIVDLIVEGG 240

Query: 243 LEYMRYSISDTAQWGDFTSGPRIINEETKKEMRRILADIQSGAFAKSWILENQANRPMFN 302
           L  MR SIS+TA++GD+ +GPR+I EETK EM+R+LADIQ G FA  ++ E  A +P+  
Sbjct: 241 LAAMRDSISNTAEYGDYVTGPRLITEETKAEMKRVLADIQQGRFALDFVQECGAGKPVMT 300

Query: 303 AINRRELEHPIEVVGRKLRSMMPFIK 328
           A  R E EHPIE VG+ LR+M  ++K
Sbjct: 301 ATRRLEAEHPIESVGKDLRAMFSWLK 326


Lambda     K      H
   0.320    0.138    0.404 

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: 388
Number of extensions: 13
Number of successful extensions: 2
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: 344
Length of database: 327
Length adjustment: 28
Effective length of query: 316
Effective length of database: 299
Effective search space:    94484
Effective search space used:    94484
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: 49 (23.5 bits)

Align candidate Synpcc7942_1552 Synpcc7942_1552 (ketol-acid reductoisomerase)
to HMM TIGR00465 (ilvC: ketol-acid reductoisomerase (EC 1.1.1.86))

# 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/TIGR00465.hmm
# target sequence database:        /tmp/gapView.3324.genome.faa
# - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

Query:       TIGR00465  [M=314]
Accession:   TIGR00465
Description: ilvC: ketol-acid reductoisomerase
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
    ------- ------ -----    ------- ------ -----   ---- --  --------                                 -----------
   6.8e-147  474.4   0.0   7.9e-147  474.2   0.0    1.0  1  lcl|FitnessBrowser__SynE:Synpcc7942_1552  Synpcc7942_1552 ketol-acid reduc


Domain annotation for each sequence (and alignments):
>> lcl|FitnessBrowser__SynE:Synpcc7942_1552  Synpcc7942_1552 ketol-acid reductoisomerase
   #    score  bias  c-Evalue  i-Evalue hmmfrom  hmm to    alifrom  ali to    envfrom  env to     acc
 ---   ------ ----- --------- --------- ------- -------    ------- -------    ------- -------    ----
   1 !  474.2   0.0  7.9e-147  7.9e-147       1     313 [.      12     325 ..      12     326 .. 0.99

  Alignments for each domain:
  == domain 1  score: 474.2 bits;  conditional E-value: 7.9e-147
                                 TIGR00465   1 lkgkkvaiiGyGsqGeaqalnlrdsglnvivglrkeaaswkkAeedGfkvltveeaikkadlimiLlpD 69 
                                               l+gk+vaiiGyGsqG+a+alnlrdsg+nv+vgl+++++s +kAe +G+kvl v+ea+++ad imiLlpD
  lcl|FitnessBrowser__SynE:Synpcc7942_1552  12 LNGKTVAIIGYGSQGHAHALNLRDSGVNVVVGLYPGSKSAAKAEAEGLKVLPVAEAAQAADWIMILLPD 80 
                                               689****************************************************************** PP

                                 TIGR00465  70 evqkevyeaeikpllkegkallfsHGfnivfkqivipkdvdvvlvAPKgpGalvReeykegrGvpsliA 138
                                               e qk+v+e+ei+p l +gk+l f+HGfni+f+qiv+p+dvdvv++APK+pG+lvR++y++g+Gvp l+A
  lcl|FitnessBrowser__SynE:Synpcc7942_1552  81 EFQKSVFENEIRPALSAGKVLAFAHGFNIHFAQIVPPADVDVVMIAPKSPGHLVRRTYEQGQGVPCLFA 149
                                               ********************************************************************* PP

                                 TIGR00465 139 veqdvtgeakeiAlayAkaiGgaragvlettFkeEvesDLfGEqavLcGglealikaafdtLveaGyqp 207
                                               ++qd++g+a++ A+ayAk+iGg+rag+let+F+eE+e+DLfGEqavLcGgl+alika+f+tLveaGyqp
  lcl|FitnessBrowser__SynE:Synpcc7942_1552 150 IYQDASGQARDRAMAYAKGIGGTRAGILETSFREETETDLFGEQAVLCGGLSALIKAGFETLVEAGYQP 218
                                               ********************************************************************* PP

                                 TIGR00465 208 elAyfeivhelklivdllkekGlelmrdavsntAklgalelr.eilkeelkkemqkilkeiqnGefake 275
                                               elAyfe++he+klivdl+ e+Gl+ mrd++sntA++g++ ++ + ++ee+k+em+ +l +iq+G+fa +
  lcl|FitnessBrowser__SynE:Synpcc7942_1552 219 ELAYFECLHEVKLIVDLIVEGGLAAMRDSISNTAEYGDYVTGpRLITEETKAEMKRVLADIQQGRFALD 287
                                               ******************************************9************************** PP

                                 TIGR00465 276 walekeagkpafeearkkekeqeiekvGkelralvkae 313
                                               ++ e  agkp ++++r+ e e+ ie+vGk+lra++++ 
  lcl|FitnessBrowser__SynE:Synpcc7942_1552 288 FVQECGAGKPVMTATRRLEAEHPIESVGKDLRAMFSWL 325
                                               ***********************************986 PP



Internal pipeline statistics summary:
-------------------------------------
Query model(s):                            1  (314 nodes)
Target sequences:                          1  (327 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: 0.00u 0.00s 00:00:00.00 Elapsed: 00:00:00.00
# Mc/sec: 11.07
//
[ok]

This GapMind analysis is from Apr 09 2024. The underlying query database was built on Apr 09 2024.

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About GapMind

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:

ublast finds a hit to a characterized protein at above 40% identity and 80% coverage, and bits >= other bits+10.
- (Hits to curated proteins without experimental data as to their function are never considered high confidence.)
HMMer finds a hit with 80% coverage of the model, and either other identity < 40 or other coverage < 0.75.

where "other" refers to the best ublast hit to a sequence that is not annotated as performing this step (and is not "ignored").

Otherwise, a candidate is "medium confidence" if either:

ublast finds a hit at above 40% identity and 70% coverage (ignoring otherBits).
ublast finds a hit at above 30% identity and 80% coverage, and bits >= other bits.
HMMer finds a hit (regardless of coverage or other bits).

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:

our ignorance of proteins' functions,
omissions in the gene models,
frame-shift errors in the genome sequence, or
the organism lacks the pathway.

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
the source code
instructions for running GapMind on your computer
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

GapMind for Amino acid biosynthesis