Alignments for a candidate for dapA in Burkholderia phytofirmans PsJN

GapMind for Amino acid biosynthesis

Alignments for a candidate for dapA in Burkholderia phytofirmans PsJN

Align 4-hydroxy-tetrahydrodipicolinate synthase; HTPA synthase; EC 4.3.3.7 (characterized)
to candidate BPHYT_RS29250 BPHYT_RS29250 dihydrodipicolinate synthase

Query= SwissProt::Q9X1K9
         (294 letters)



>FitnessBrowser__BFirm:BPHYT_RS29250
          Length = 307

 Score =  164 bits (414), Expect = 3e-45
 Identities = 96/296 (32%), Positives = 156/296 (52%), Gaps = 15/296 (5%)

Query: 1   MFRGVGTAIVTPFKNGELDLESYERLVRYQLENGVNALIVLGTTGESPTVNEDEREKLVS 60
           +F G+   ++TPF +G +D  +   LVR     G+  L+ LGTTGE   ++  E++ +++
Sbjct: 3   IFSGIWVPLITPFADGAVDHAALRALVRRYTGAGIAGLVALGTTGEPAALDAAEQDAVLA 62

Query: 61  RTLEIV--------DGK-IPVIVGAGTNSTEKTLKLVKQAEKLGANGVLVVTPYYNKPTQ 111
             L+          DG+ +PV+ G   N T      + Q   L   GVL+  PYY +P+Q
Sbjct: 63  TILDEAQSAAHLARDGQALPVVAGVSGNHTASMRVRIGQLNALPLAGVLMAAPYYIRPSQ 122

Query: 112 EGLYQHYKYISERTDLGIVVYNVPGRTGVNVLPETAARIAADLKNVVGIKEANPDIDQID 171
            G+  H+  +++ ++  +V+Y++P RTGV +  +T   +A   +    I+        +D
Sbjct: 123 AGIVAHFMALADASEKPVVLYDIPYRTGVRLELDTLLALATHPR----IQAVKDCAGSLD 178

Query: 172 RTVSLTKQARSDFMVWSGNDDRTFYLLCAGGDGVISVVSNVAPKQMVELCAEYFSGNLEK 231
            T++L + AR    V +G D   F  LC GG G I+  ++V P++ VE+     +G L  
Sbjct: 179 TTLALIRDAR--LQVLAGEDINIFNTLCLGGSGAIAASAHVRPERFVEMYRALAAGRLAD 236

Query: 232 SREVHRKLRPLMKALFVETNPIPVKAALNLMGFIENELRLPLVPASEKTVELLRNV 287
            R +   L PL++ALFVE NP PVKA L   G I +ELR+P+  AS   +E L  +
Sbjct: 237 GRRIFHALAPLIEALFVEPNPAPVKALLAAQGLIRDELRMPMTRASGALIERLEGL 292


Lambda     K      H
   0.316    0.135    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: 183
Number of extensions: 5
Number of successful extensions: 3
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: 294
Length of database: 307
Length adjustment: 27
Effective length of query: 267
Effective length of database: 280
Effective search space:    74760
Effective search space used:    74760
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 (21.5 bits)
S2: 48 (23.1 bits)

Align candidate BPHYT_RS29250 BPHYT_RS29250 (dihydrodipicolinate synthase)
to HMM TIGR00674 (dapA: 4-hydroxy-tetrahydrodipicolinate synthase (EC 4.3.3.7))

# 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/TIGR00674.hmm
# target sequence database:        /tmp/gapView.1153.genome.faa
# - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

Query:       TIGR00674  [M=286]
Accession:   TIGR00674
Description: dapA: 4-hydroxy-tetrahydrodipicolinate synthase
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
    ------- ------ -----    ------- ------ -----   ---- --  --------                                -----------
    1.1e-73  233.5   0.0    1.3e-73  233.3   0.0    1.0  1  lcl|FitnessBrowser__BFirm:BPHYT_RS29250  BPHYT_RS29250 dihydrodipicolinat


Domain annotation for each sequence (and alignments):
>> lcl|FitnessBrowser__BFirm:BPHYT_RS29250  BPHYT_RS29250 dihydrodipicolinate synthase
   #    score  bias  c-Evalue  i-Evalue hmmfrom  hmm to    alifrom  ali to    envfrom  env to     acc
 ---   ------ ----- --------- --------- ------- -------    ------- -------    ------- -------    ----
   1 !  233.3   0.0   1.3e-73   1.3e-73       4     279 ..       9     289 ..       6     295 .. 0.96

  Alignments for each domain:
  == domain 1  score: 233.3 bits;  conditional E-value: 1.3e-73
                                TIGR00674   4 tAliTPfkedgsvdfaalekliesqiekgvdaivvvGtTGEsatLsleEkkkvievavelvkn....... 66 
                                              + liTPf +   vd aal  l+++   +g+ ++v++GtTGE a+L   E+ +v+ + ++ ++        
  lcl|FitnessBrowser__BFirm:BPHYT_RS29250   9 VPLITPFADGA-VDHAALRALVRRYTGAGIAGLVALGTTGEPAALDAAEQDAVLATILDEAQSaahlard 77 
                                              679****8877.***********************************************99999999999 PP

                                TIGR00674  67 ..rvpviaGtgsnateeaieltkeaeklgvdgvlvvtPyYnkPtqeGlykhfkaiaeevelPiilYnvPs 134
                                                 +pv+aG+++n t+     + +++ l+ +gvl+ +PyY +P+q G+++hf a+a+++e+P++lY++P 
  lcl|FitnessBrowser__BFirm:BPHYT_RS29250  78 gqALPVVAGVSGNHTASMRVRIGQLNALPLAGVLMAAPYYIRPSQAGIVAHFMALADASEKPVVLYDIPY 147
                                              999*************999999************************************************ PP

                                TIGR00674 135 RtgvslepetvkrLaeeveivaiKeasgdlervseikaeakedfkvlsGdDaltleilalGakGviSVas 204
                                              Rtgv le +t+++La++++i a+K+++g+l+    +++ a   ++vl+G+D    + l+lG++G i   +
  lcl|FitnessBrowser__BFirm:BPHYT_RS29250 148 RTGVRLELDTLLALATHPRIQAVKDCAGSLDTTLALIRDA--RLQVLAGEDINIFNTLCLGGSGAIAASA 215
                                              *********************************9999966..5*************************** PP

                                TIGR00674 205 nvapkelkemvkaalegdteeareihqkllklfkalfietNPipvKtalallgliekdelRlPLtelsee 274
                                              +v p+++ em++a ++g+ ++ r i + l +l++alf+e+NP pvK++la++gli   elR+P+t +s  
  lcl|FitnessBrowser__BFirm:BPHYT_RS29250 216 HVRPERFVEMYRALAAGRLADGRRIFHALAPLIEALFVEPNPAPVKALLAAQGLIRD-ELRMPMTRASGA 284
                                              ********************************************************9.*******99977 PP

                                TIGR00674 275 kkekl 279
                                                e+l
  lcl|FitnessBrowser__BFirm:BPHYT_RS29250 285 LIERL 289
                                              66665 PP



Internal pipeline statistics summary:
-------------------------------------
Query model(s):                            1  (286 nodes)
Target sequences:                          1  (307 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: 00:00:00.01
# Mc/sec: 7.99
//
[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