GapMind for catabolism of small carbon sources

 

L-serine catabolism in Rhodospirillum rubrum ATCC 11170

Best path

braC, braD, braE, braF, braG, sdaB

Rules

Overview: L-serine degradation in GapMind is based on the MetaCyc pathway (link)

19 steps (12 with candidates)

Or see definitions of steps

Step Description Best candidate 2nd candidate
braC L-alanine/L-serine/L-threonine ABC transporter, substrate binding protein (BraC/NatB) RRU_RS11255 RRU_RS09070
braD L-alanine/L-serine/L-threonine ABC transporter, permease component 1 (BraD/NatD) RRU_RS09095 RRU_RS17655
braE L-alanine/L-serine/L-threonine ABC transporter, permease component 2 (BraE/NatC) RRU_RS09090 RRU_RS17650
braF L-alanine/L-serine/L-threonine ABC transporter, ATP-binding component 1 (BraF/NatA) RRU_RS17645 RRU_RS09085
braG L-alanine/L-serine/L-threonine ABC transporter, ATP-binding component 2 (BraG/NatE) RRU_RS17640 RRU_RS17050
sdaB L-serine ammonia-lyase RRU_RS14840 RRU_RS03370
Alternative steps:
AAP1 L-serine transporter AAP1
Ac3H11_1692 L-tyrosine ABC transporter, ATPase component 2 RRU_RS09080 RRU_RS19225
Ac3H11_1693 L-tyrosine ABC transporter, ATPase component 1 RRU_RS19220 RRU_RS09085
Ac3H11_1694 L-tyrosine ABC transporter, permease component 2 RRU_RS09090 RRU_RS18120
Ac3H11_1695 L-tyrosine ABC transporter, permease component 1 RRU_RS09095 RRU_RS19230
Ac3H11_2396 L-tyrosine ABC transporter, substrate-binding component component RRU_RS09070 RRU_RS11255
dlsT L-serine transporter DlsT
sdaC L-serine transporter:H+ symporter sdaC
sdhA FeS-containing L-serine dehydratase, alpha subunit
sdhB FeS-containing L-serine dehydratase, beta subunit
serP L-serine permease SerP
snatA L-serine transporter RRU_RS13020
sstT L-serine:Na+ symporter SstT

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 Apr 09 2024. 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