CPLM 1.0 - Compendium of Protein Lysine Modification
TagContent
CPLM ID CPLM-007136
UniProt Accession
Genbank Protein ID
Genbank Nucleotide ID
Protein Name
 N-acetylneuraminate epimerase 
Protein Synonyms/Alias
 N-acetylneuraminate mutarotase; Neu5Ac mutarotase; Sialic acid epimerase 
Gene Name
 nanM 
Gene Synonyms/Alias
 yjhT; b4310; JW5777 
Created Date
 July 27, 2013 
Organism
 Escherichia coli (strain K12) 
NCBI Taxa ID
 83333 
Lysine Modification
Position
Peptide
Type
References
109QVFNDVHKYNPKTNSacetylation[1]
315IHLWHNGKWDKSGELacetylation[1]
Reference
 [1] Acetyl-Phosphate Is a Critical Determinant of Lysine Acetylation in E. coli.
 Weinert BT, Iesmantavicius V, Wagner SA, Schölz C, Gummesson B, Beli P, Nyström T, Choudhary C.
 Mol Cell. 2013 Jul 25;51(2):265-72. [PMID: 23830618
Functional Description
 Converts alpha-N-acetylneuranimic acid (Neu5Ac) to the beta-anomer, accelerating the equilibrium between the alpha- and beta-anomers. Probably facilitates sialidase-negative bacteria to compete sucessfully for limited amounts of extracellular Neu5Ac, which is likely taken up in the beta-anomer. In addition, the rapid removal of sialic acid from solution might be advantageous to the bacterium to damp down host responses. 
Sequence Annotation
 REPEAT 40 84 Kelch 1.
 REPEAT 86 137 Kelch 2.
 REPEAT 139 173 Kelch 3.
 REPEAT 174 219 Kelch 4.
 REPEAT 222 265 Kelch 5.
 REPEAT 287 336 Kelch 6.
 REPEAT 338 367 Kelch 7.
 ACT_SITE 228 228 Proton acceptor (Potential).  
Keyword
 3D-structure; Carbohydrate metabolism; Complete proteome; Isomerase; Kelch repeat; Periplasm; Reference proteome; Repeat; Signal. 
Sequence Source
 UniProt (SWISSPROT/TrEMBL); GenBank; EMBL 
Protein Length
 368 AA 
Protein Sequence
MNKTITALAI MMASFAANAS VLPETPVPFK SGTGAIDNDT VYIGLGSAGT AWYKLDTQAK 60
DKKWTALAAF PGGPRDQATS AFIDGNLYVF GGIGKNSEGL TQVFNDVHKY NPKTNSWVKL 120
MSHAPMGMAG HVTFVHNGKA YVTGGVNQNI FNGYFEDLNE AGKDSTAIDK INAHYFDKKA 180
EDYFFNKFLL SFDPSTQQWS YAGESPWYGT AGAAVVNKGD KTWLINGEAK PGLRTDAVFE 240
LDFTGNNLKW NKLAPVSSPD GVAGGFAGIS NDSLIFAGGA GFKGSRENYQ NGKNYAHEGL 300
KKSYSTDIHL WHNGKWDKSG ELSQGRAYGV SLPWNNSLLI IGGETAGGKA VTDSVLITVK 360
DNKVTVQN 368 
Gene Ontology
 GO:0030288; C:outer membrane-bounded periplasmic space; IDA:EcoCyc.
 GO:0016857; F:racemase and epimerase activity, acting on carbohydrates and derivatives; IDA:EcoCyc.
 GO:0005975; P:carbohydrate metabolic process; IEA:UniProtKB-KW. 
Interpro
 IPR015915; Kelch-typ_b-propeller.
 IPR019936; Mutatrotase_YjhT-like. 
Pfam
  
SMART
  
PROSITE
  
PRINTS