Alignments for a candidate for dapB in Caulobacter crescentus NA1000

GapMind for Amino acid biosynthesis

Alignments for a candidate for dapB in Caulobacter crescentus NA1000

Align 4-hydroxy-tetrahydrodipicolinate reductase (EC 1.17.1.8) (characterized)
to candidate CCNA_03664 CCNA_03664 dihydrodipicolinate reductase

Query= BRENDA::Q2YJN7
         (268 letters)



>FitnessBrowser__Caulo:CCNA_03664
          Length = 257

 Score =  232 bits (591), Expect = 7e-66
 Identities = 135/264 (51%), Positives = 167/264 (63%), Gaps = 17/264 (6%)

Query: 3   LVVVGAGGRMGQTLIRTIQSIEGAKLVGAIERSGSPFLGKDAGEVTGIGTLGVAITDDPL 62
           + + GA GRMG+ + + ++    A +    ER G      DAGE       G+   +  L
Sbjct: 7   IAIAGANGRMGRAVAQALEGRSDAVVAARFERPG------DAGE-------GLVARETAL 53

Query: 63  PVFAKAHGVLDFTSPAASVEFAG-LAAQARIVHVIGTTGCSAEDDEKIRAAARHATIVKS 121
              A A  V+DFT P ASV  A   AA      VIG+TG S E  ++I AAA    IV+S
Sbjct: 54  ---AAAEAVIDFTLPEASVALAEEAAANGGPALVIGSTGFSDEQLDRIDAAATKIVIVRS 110

Query: 122 GNMSLGVNLLSVLVQKAAEALGPEDFDIEILEMHHRHKVDAPSGTALLLGEAAARGRDIA 181
           GN SLGVN+L  LV++AA AL  +D+DIE+ E HH+ K+DAPSGTAL+LGEAAA GR I 
Sbjct: 111 GNYSLGVNMLMGLVRQAAAALPAQDWDIEVFEAHHKRKIDAPSGTALMLGEAAAEGRGIN 170

Query: 182 LADNSVRVRDGYTGPRETGAIGFATLRGGSVIGDHSVILAGTGERVVLSHHAEDRSIFAR 241
           LA  S R RDG TGPR+ G IGF+ +RGG +IG+HSVI AG  E + LSH A DR +FAR
Sbjct: 171 LAKVSDRGRDGVTGPRKDGDIGFSVVRGGGIIGEHSVIFAGESESLTLSHSAIDRGLFAR 230

Query: 242 GAIKAALWAHGKKPGLYSMLDVLG 265
           GAI AA+W  GK PGLY M DVLG
Sbjct: 231 GAIAAAVWVKGKPPGLYDMQDVLG 254


Lambda     K      H
   0.318    0.136    0.387 

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: 230
Number of extensions: 13
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: 268
Length of database: 257
Length adjustment: 25
Effective length of query: 243
Effective length of database: 232
Effective search space:    56376
Effective search space used:    56376
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 (21.7 bits)
S2: 47 (22.7 bits)

Align candidate CCNA_03664 CCNA_03664 (dihydrodipicolinate reductase)
to HMM TIGR00036 (dapB: 4-hydroxy-tetrahydrodipicolinate reductase (EC 1.17.1.8))

# 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/TIGR00036.hmm
# target sequence database:        /tmp/gapView.11626.genome.faa
# - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

Query:       TIGR00036  [M=270]
Accession:   TIGR00036
Description: dapB: 4-hydroxy-tetrahydrodipicolinate reductase
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
    ------- ------ -----    ------- ------ -----   ---- --  --------                             -----------
    7.8e-70  221.4   0.7      3e-68  216.3   0.7    2.0  1  lcl|FitnessBrowser__Caulo:CCNA_03664  CCNA_03664 dihydrodipicolinate r


Domain annotation for each sequence (and alignments):
>> lcl|FitnessBrowser__Caulo:CCNA_03664  CCNA_03664 dihydrodipicolinate reductase
   #    score  bias  c-Evalue  i-Evalue hmmfrom  hmm to    alifrom  ali to    envfrom  env to     acc
 ---   ------ ----- --------- --------- ------- -------    ------- -------    ------- -------    ----
   1 !  216.3   0.7     3e-68     3e-68       2     270 .]       5     254 ..       4     254 .. 0.92

  Alignments for each domain:
  == domain 1  score: 216.3 bits;  conditional E-value: 3e-68
                             TIGR00036   2 ikvavaGaaGrmGrevikavkeaedlelvaalerkgsskqgkDiGelagigkvgvpveddleavkvlaekkad 74 
                                           +k+a+aGa GrmGr v +a++   d  ++a +er        D+Ge      v    e++l         +a+
  lcl|FitnessBrowser__Caulo:CCNA_03664   5 VKIAIAGANGRMGRAVAQALEGRSDAVVAARFER------PGDAGEGL----VAR--ETAL--------AAAE 57 
                                           69***********************999999996......34767622....222..2222........3568 PP

                             TIGR00036  75 vliDfttpeavlenvkialek.gvrlVvGTTGfseedlkelkdlaekkgvalviapNfaiGvnlllkllekaa 146
                                            +iDft+pea +  ++ a+++ g  lV+G TGfs+e+l ++ ++a k  + +v + N+++Gvn+l+ l+++aa
  lcl|FitnessBrowser__Caulo:CCNA_03664  58 AVIDFTLPEASVALAEEAAANgGPALVIGSTGFSDEQLDRIDAAATK--IVIVRSGNYSLGVNMLMGLVRQAA 128
                                           99***********998777662679**********************..***********************9 PP

                             TIGR00036 147 kvl..edvDiEiiElHHrhKkDaPSGTAlklaeiiakargkdlkeaaveeregltGerkkeeiGiaavRggdv 217
                                             l  +d+DiE+ E+HH+ K DaPSGTAl l+e+ a+ rg +l ++   +r+g+tG rk+ +iG++ vRgg++
  lcl|FitnessBrowser__Caulo:CCNA_03664 129 AALpaQDWDIEVFEAHHKRKIDAPSGTALMLGEAAAEGRGINLAKVSDRGRDGVTGPRKDGDIGFSVVRGGGI 201
                                           99866899********************************99******************************* PP

                             TIGR00036 218 vgehtvlFasdGerleitHkassRaafakGvvrairwledkeekvydledvld 270
                                           +geh+v+Fa++ e l+++H a +R  fa+G++ a+ w++ k  ++yd++dvl+
  lcl|FitnessBrowser__Caulo:CCNA_03664 202 IGEHSVIFAGESESLTLSHSAIDRGLFARGAIAAAVWVKGKPPGLYDMQDVLG 254
                                           ***************************************************96 PP



Internal pipeline statistics summary:
-------------------------------------
Query model(s):                            1  (270 nodes)
Target sequences:                          1  (257 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: 0.04u 0.00s 00:00:00.04 Elapsed: 00:00:00.03
# Mc/sec: 1.90
//
[ok]

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

Downloads

Candidates (tab-delimited)
Steps (tab-delimited)
Rules (tab-delimited)
Protein sequences (fasta format)
Organisms (tab-delimited)
SQLite3 databases

Related tools

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