Protein Info for Sama_2777 in Shewanella amazonensis SB2B

Annotation: aminotransferase, class V (RefSeq)

These analyses and tools can help you predict a protein's function, but be skeptical. For enzymes, over 10% of annotations from KEGG or SEED are probably incorrect. For other types of proteins, the error rates may be much higher. MetaCyc and Swiss-Prot have low error rates, but the best hits in these databases are often quite distant, so this protein's function may not be the same. TIGRFam has low error rates. Finally, many experimentally-characterized proteins are not in any of these databases. To find relevant papers, use PaperBLAST.

Protein Families and Features

Best Hits

Swiss-Prot: 49% identical to SUFS_SERP5: Cysteine desulfurase (sufS) from Serratia proteamaculans (strain 568)

KEGG orthology group: K11717, cysteine desulfurase / selenocysteine lyase [EC: 2.8.1.7 4.4.1.16] (inferred from 100% identity to saz:Sama_2777)

MetaCyc: 44% identical to L-cysteine desulfurase (Escherichia coli K-12 substr. MG1655)
Selenocysteine lyase. [EC: 4.4.1.16]; Cysteine desulfurase. [EC: 4.4.1.16, 2.8.1.7]

Predicted SEED Role

"Cysteine desulfurase CsdA-CsdE (EC 2.8.1.7), main protein CsdA" in subsystem Alanine biosynthesis (EC 2.8.1.7)

MetaCyc Pathways

superpathway of thiamine diphosphate biosynthesis I (10/10 steps found)
thiazole component of thiamine diphosphate biosynthesis I (6/6 steps found)
superpathway of L-alanine biosynthesis (4/4 steps found)
superpathway of thiamine diphosphate biosynthesis II (9/11 steps found)
molybdopterin biosynthesis (5/6 steps found)
L-alanine biosynthesis III (1/1 steps found)
L-cysteine degradation IV (1/1 steps found)
thiazole component of thiamine diphosphate biosynthesis II (5/7 steps found)
cytidylyl molybdenum cofactor sulfurylation (1/2 steps found)
bis(guanylyl molybdopterin) cofactor sulfurylation (1/3 steps found)
tRNA-uridine 2-thiolation (mammalian mitochondria) (1/4 steps found)
tRNA-uridine 2-thiolation (yeast mitochondria) (1/4 steps found)
tRNA-uridine 2-thiolation and selenation (bacteria) (6/11 steps found)
tRNA-uridine 2-thiolation (thermophilic bacteria) (1/5 steps found)
[2Fe-2S] iron-sulfur cluster biosynthesis (4/10 steps found)
tRNA-uridine 2-thiolation (cytoplasmic) (1/8 steps found)

KEGG Metabolic Maps

Isozymes

Compare fitness of predicted isozymes for: 2.8.1.7

Use Curated BLAST to search for 2.8.1.7 or 4.4.1.16

Sequence Analysis Tools

PaperBLAST (search for papers about homologs of this protein)

Search CDD (the Conserved Domains Database, which includes COG and superfam)

Compare to protein structures

Predict protein localization: PSORTb (Gram-negative bacteria)

Predict transmembrane helices and signal peptides: Phobius

Check the current SEED with FIGfam search

Find homologs in fast.genomics or the ENIGMA genome browser

See A1S9C3 at UniProt or InterPro

Protein Sequence (409 amino acids)

>Sama_2777 aminotransferase, class V (RefSeq) (Shewanella amazonensis SB2B)
MNISSLRNQFPALDQHIGDYPLVYLDTAATSQKPRQVLDAMAHFLTTDNANVHRAAHTLS
GRATASYEAVRDKLKAFVHAGRREEIIFTHGTTEAINLVANGLKHRLNSGDVILVDSAAH
HANLVPWQQLAAQTGARVEAIPLTAELRLDTAAFEAQLEAGAALVALGHVSNVLGTVNDV
NTLCAMARAKGALTLVDGAQAVAHQRVDVTDIGCDFYVFSGHKMYGPDGVGVLYGRYEVL
DTLTPLLTGGEMIKTVSFTGTEFGELPNRLEAGTPPIVSVIGLGAAIDFINSLDRQAVLA
HEHDLMARLRAGLEAVLQIRIHSPRDAAGAAPNSGAIAFNLGDEHHQDVGILLDQQGIAV
RCGHHCAMPLMSLMGVKGCCRASIGLYTSPDDIDRFLAAVKEAAELLCP