Alignments for a candidate for malK_Ss in Sinorhizobium meliloti 1021

GapMind for catabolism of small carbon sources

Alignments for a candidate for malK_Ss in Sinorhizobium meliloti 1021

Align MalK, component of Maltose and maltooligosaccharide porter (characterized)
to candidate SMa0298 SMa0298 ABC transporter ATP-binding protein

Query= TCDB::Q97UG5
         (617 letters)



>FitnessBrowser__Smeli:SMa0298
          Length = 604

 Score =  248 bits (632), Expect = 7e-70
 Identities = 153/459 (33%), Positives = 244/459 (53%), Gaps = 17/459 (3%)

Query: 5   MDSLLKVNELTAGYFNQDGFVIGVTNVNFEVYPNEIFAIAGESGCGKSTLAMAIYGLLKY 64
           M +L++V  L   Y    G+   V +V+FE+ P E F + GESGCGKST+A  + G    
Sbjct: 1   MKNLIEVRNLNIAYGGPSGWTNVVQDVSFEIAPGEAFGLVGESGCGKSTVAYRLLGYGTI 60

Query: 65  PGVVLRGHVYLKDKDILSITQEELRKLRMKEFVYVPQFAMDALDPVAKIGDQMMRAAVSH 124
             +V  G V     D+L +    L +LR     +VPQ    +L P  ++G Q+     +H
Sbjct: 61  NSLVQTGEVLFDGTDLLKLDAASLMRLRGNRIAFVPQNPTTSLSPGMRVGSQICEMIATH 120

Query: 125 -----GVNVEEARKLIKEKLELVDLPYNVVNMYPHELSGGMRQRVVIATSILLNPSLIIL 179
                G+ +E   + I E   LV LP +V + YPHELSGG +QRV IA ++  NP L++L
Sbjct: 121 KALPDGMTME---RRIVELFTLVGLP-DVGHRYPHELSGGQQQRVTIAMAVACNPDLLVL 176

Query: 180 DEPTTGLDVIVQYEILKDLKRIQRQLGVSLVIISHDISMLLMISDRVGIMYAGEIVEIGS 239
           DEPTTGLDV  Q +I++ L  ++ ++G++++ ++HD+++L  I+DRVG+MYAG++VE+  
Sbjct: 177 DEPTTGLDVTTQRQIIQLLADLRSRIGMAMLYVTHDLALLAQIADRVGVMYAGQLVEVAP 236

Query: 240 KEEIIKRPSHPYTYLLISSLPSLVKRREKLLSIPGNPPLMLSKVPNSCRFYDRCPFKMEK 299
            ++++  P+HPY+  LI+S+P+      +  S+ G   L   ++   C+F  RC F    
Sbjct: 237 CDKLLSAPAHPYSRGLIASIPTNDGTDRQARSLRG--MLRRDEMSTGCKFEPRCDFATGA 294

Query: 300 CSTLNPALGDIMDGHKARCFLQKGGYVDLSTLPIPLEYYAEEKAETDLSESNQHEVVMKI 359
           C      L  I D     C   +      +T P+     A+  A T +   +   V    
Sbjct: 295 CRATPQLLELIEDARSVACMRWRE-----ATAPLAPSVTAKAVARTAVRSESLLSVTELS 349

Query: 360 LNLSKIYYIRKNLILSEPINAVNDVSFELKKGTITALVGGSGHGKSTIAKILAGMIQQTS 419
           L+  +     + L  + P   V +++  L  G + ALVGGSG GKSTIA+ ++  +   +
Sbjct: 350 LSYQQPGLFNRLLGRTSPA-VVREINLNLAAGEVVALVGGSGSGKSTIARAISARLPPRA 408

Query: 420 GKIILLGKDVSEYGVRNSMWYKENVQMIFQDPYSSLDPR 458
           G I L G  ++      S+     +Q IFQ+P +SL+PR
Sbjct: 409 GIIRLDGTALAPSLKDRSVEELRQIQYIFQNPDASLNPR 447



 Score =  140 bits (353), Expect = 2e-37
 Identities = 87/240 (36%), Positives = 138/240 (57%), Gaps = 11/240 (4%)

Query: 379 NAVNDVSFELKKGTITALVGGSGHGKSTIAKILAGM-----IQQTSGKIILLGKDVSEYG 433
           N V DVSFE+  G    LVG SG GKST+A  L G      + QT G+++  G D+ +  
Sbjct: 22  NVVQDVSFEIAPGEAFGLVGESGCGKSTVAYRLLGYGTINSLVQT-GEVLFDGTDLLKLD 80

Query: 434 VRNSMWYKEN-VQMIFQDPYSSLDPRHTVRWHVERPLLIHKKVSNKDQLLPKIIEVLKNV 492
             + M  + N +  + Q+P +SL P   V   +   +  HK + +   +  +I+E+   V
Sbjct: 81  AASLMRLRGNRIAFVPQNPTTSLSPGMRVGSQICEMIATHKALPDGMTMERRIVELFTLV 140

Query: 493 GLKPPEKYLYKYPHELSGGERQRVAIARATAVEPKVLVADEPVSMLDASLRAGILNLIKK 552
           GL       ++YPHELSGG++QRV IA A A  P +LV DEP + LD + +  I+ L+  
Sbjct: 141 GLPDVG---HRYPHELSGGQQQRVTIAMAVACNPDLLVLDEPTTGLDVTTQRQIIQLLAD 197

Query: 553 FKKN-GISILYITHDIATVNYIADEIMVIYKGRIVEKGNTYEVISNPSHEYTKRLIEAVP 611
            +   G+++LY+THD+A +  IAD + V+Y G++VE     +++S P+H Y++ LI ++P
Sbjct: 198 LRSRIGMAMLYVTHDLALLAQIADRVGVMYAGQLVEVAPCDKLLSAPAHPYSRGLIASIP 257


Lambda     K      H
   0.319    0.138    0.391 

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: 792
Number of extensions: 42
Number of successful extensions: 9
Number of sequences better than 1.0e-02: 1
Number of HSP's gapped: 2
Number of HSP's successfully gapped: 2
Length of query: 617
Length of database: 604
Length adjustment: 37
Effective length of query: 580
Effective length of database: 567
Effective search space:   328860
Effective search space used:   328860
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 (21.7 bits)
S2: 53 (25.0 bits)

This GapMind analysis is from Sep 17 2021. The underlying query database was built on Sep 17 2021.

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Protein sequences (fasta format)
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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

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 catabolism of small carbon sources