GapMind for catabolism of small carbon sources

 

sucrose catabolism in Sphingomonas koreensis DSMZ 15582

Best path

ams, MFS-glucose, glk

Also see fitness data for the top candidates

Rules

Overview: Sucrose utilization in GapMind is based on MetaCyc pathways sucrose degradation I via sucrose 6-phosphate hydrolase (link), pathway II via sucrose synthase (link), pathway III via invertase (link), and pathway IV via sucrose phosphorylase (link). Pathway V is similar to pathway III and is not reported in prokaryotes, so it is not included. There is no pathway VI. Pathway VII (via sucrose 3-dehydrogenase, link) is too poorly understood to include in GapMind.

101 steps (29 with candidates)

Or see definitions of steps

Step Description Best candidate 2nd candidate
ams sucrose hydrolase (invertase) Ga0059261_1778 Ga0059261_1580
MFS-glucose glucose transporter, MFS superfamily Ga0059261_1891 Ga0059261_0767
glk glucokinase Ga0059261_0355 Ga0059261_1776
Alternative steps:
1pfk 1-phosphofructokinase
aglE sucrose ABC transporter, substrate-binding component AglK
aglE' glucose ABC transporter, substrate-binding component (AglE)
aglF sucrose ABC transporter, permease component 1 (AglF)
aglF' glucose ABC transporter, permease component 1 (AglF)
aglG sucrose ABC transporter, permease component 2 (AglG)
aglG' glucose ABC transporter, permease component 2 (AglG)
aglK sucrose ABC transporter, ATPase component AglK Ga0059261_3668 Ga0059261_0562
aglK' glucose ABC transporter, ATPase component (AglK) Ga0059261_3668 Ga0059261_0562
araS fructose ABC transporter, substrate-binding component AraS
araT fructose ABC transporter, permease component 2 (AraT)
araU fructose ABC transporter, permease component 1 (AraU)
araV fructose ABC transporter, ATPase component AraV Ga0059261_2293 Ga0059261_1321
bglF glucose PTS, enzyme II (BCA components, BglF)
BT1758 fructose transporter
crr glucose PTS, enzyme IIA Ga0059261_1646
cscB sucrose:H+ symporter CscB
eda 2-keto-3-deoxygluconate 6-phosphate aldolase Ga0059261_0356 Ga0059261_1625
edd phosphogluconate dehydratase Ga0059261_0354 Ga0059261_4216
fba fructose 1,6-bisphosphate aldolase Ga0059261_0725
ffz fructose facilitator (uniporter)
frcA fructose ABC transporter, ATPase component FrcA Ga0059261_2703 Ga0059261_3874
frcB fructose ABC transporter, substrate-binding component FrcB
frcC fructose ABC transporter, permease component FrcC
frt1 fructose:H+ symporter Frt1
fruA fructose-specific PTS system (fructose 1-phosphate forming), EII-B'BC components
fruB fructose-specific PTS system (fructose 1-phosphate forming), Hpr and EII-A components
fruD fructose-specific PTS system (fructose 1-phosphate forming), EII-A component
fruE fructose ABC transporter, substrate-binding component FruE
fruF fructose ABC transporter, permease component 1 (FruF)
fruG fructose ABC transporter, permease component 2 (FruG)
fruI fructose-specific PTS system (fructose 1-phosphate forming), EI, Hpr, and EII-A components Ga0059261_1646 Ga0059261_2514
fruII-A fructose-specific PTS system (fructose 1-phosphate forming), EII-A component
fruII-ABC fructose-specific PTS system (fructose 1-phosphate forming), EII-ABC components
fruII-B fructose-specific PTS system (fructose 1-phosphate forming), EII-B component
fruII-C fructose-specific PTS system (fructose 1-phosphate forming), EII-C component
fruK fructose ABC transporter, ATPase component FruK
fruP fructose porter FruP Ga0059261_2650 Ga0059261_0767
gadh1 gluconate 2-dehydrogenase flavoprotein subunit
gadh2 gluconate 2-dehydrogenase cytochrome c subunit
gadh3 gluconate 2-dehydrogenase subunit 3
galU glucose 1-phosphate uridylyltransferase Ga0059261_3133
gdh quinoprotein glucose dehydrogenase
ght6 high-affinity fructose transporter ght6
glcP fructose:H+ symporter GlcP Ga0059261_1777 Ga0059261_1891
glcS glucose ABC transporter, substrate-binding component (GlcS)
glcT glucose ABC transporter, permease component 1 (GlcT)
glcU glucose ABC transporter, permease component 2 (GlcU)
glcU' Glucose uptake protein GlcU
glcV glucose ABC transporter, ATPase component (GclV) Ga0059261_3874 Ga0059261_1321
gnl gluconolactonase Ga0059261_1893
gtsA glucose ABC transporter, substrate-binding component (GtsA)
gtsB glucose ABC transporter, permease component 1 (GtsB)
gtsC glucose ABC transporter, permease component 2 (GtsC)
gtsD glucose ABC transporter, ATPase component (GtsD) Ga0059261_3668 Ga0059261_3874
kguD 2-keto-6-phosphogluconate reductase Ga0059261_2669 Ga0059261_2264
kguK 2-ketogluconokinase
kguT 2-ketogluconate transporter
levD fructose PTS system (fructose 6-phosphate forming), EII-A component
levDE fructose PTS system (fructose 6-phosphate forming), EII-AB component
levE fructose PTS system (fructose 6-phosphate forming), EII-B component
levF fructose PTS system (fructose 6-phosphate forming), EII-C component
levG fructose PTS system (fructose 6-phosphate forming), EII-D component
manX glucose PTS, enzyme EIIAB
manY glucose PTS, enzyme EIIC
manZ glucose PTS, enzyme EIID
mglA glucose ABC transporter, ATP-binding component (MglA) Ga0059261_2542 Ga0059261_3276
mglB glucose ABC transporter, substrate-binding component
mglC glucose ABC transporter, permease component (MglC)
PAST-A proton-associated sugar transporter A
pgmA alpha-phosphoglucomutase Ga0059261_2456 Ga0059261_1954
ptsG glucose PTS, enzyme IICB Ga0059261_1647
ptsG-crr glucose PTS, enzyme II (CBA components, PtsG) Ga0059261_1647
ptsS sucrose phosphotransferase enzyme EII-BCA
sacP sucrose phosphotransferase enzyme EII-BC
scrB sucrose-6-phosphate hydrolase
scrK fructokinase Ga0059261_1776 Ga0059261_4061
scrP sucrose phosphorylase
scrT sucrose permease ScrT
SemiSWEET Sugar transporter SemiSWEET
Slc2a5 fructose:H+ symporter Ga0059261_1777
SLC45A2 sucrose transporter
SLC45A3 sucrose:H+ symporter
SLC45A4 sucrose:H+ symporter
SSS-glucose Sodium/glucose cotransporter Ga0059261_1623
STP6 sugar transport protein 6 Ga0059261_1891
SUS sucrose synthase
sut sucrose:proton symporter SUT/SUC
sut1 alpha-glucoside permease Sut1
SWEET1 bidirectional sugar transporter SWEET1
THT2A fructose THT2A
thuE sucrose ABC transporter, substrate-binding component ThuE
thuF sucrose ABC transporter, permease component 1 (ThuF)
thuG sucrose ABC transporter, permease component 2 (ThuG)
thuK sucrose ABC transporter, ATPase component ThuK Ga0059261_3668 Ga0059261_3874
TMT1 heteromeric sucrose:H+ symporter, TMT1 component
TMT2 heteromeric sucrose:H+ symporter, TMT2 component
tpi triose-phosphate isomerase Ga0059261_0254 Ga0059261_0728

Confidence: high confidence medium confidence low confidence
transporter – transporters and PTS systems are shaded because predicting their specificity is particularly challenging.

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

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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:

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:

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:

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