CPLM 1.0 - Compendium of Protein Lysine Modification
TagContent
CPLM ID CPLM-026164
UniProt Accession
Genbank Protein ID
Genbank Nucleotide ID
Protein Name
 Inosine-5'-monophosphate dehydrogenase 
Protein Synonyms/Alias
 IMP dehydrogenase; IMPD; IMPDH 
Gene Name
 guaB 
Gene Synonyms/Alias
 TTHA0432 
Created Date
 July 27, 2013 
Organism
 Thermus thermophilus (strain HB8 / ATCC 27634 / DSM 579) 
NCBI Taxa ID
 300852 
Lysine Modification
Position
Peptide
Type
References
411RYFQDPEKGETEAKKacetylation[1]
Reference
 [1] Acetylome with structural mapping reveals the significance of lysine acetylation in Thermus thermophilus.
 Okanishi H, Kim K, Masui R, Kuramitsu S.
 J Proteome Res. 2013 Aug 1;. [PMID: 23901841
Functional Description
 Catalyzes the conversion of inosine 5'-phosphate (IMP) to xanthosine 5'-phosphate (XMP), the first committed and rate- limiting step in the de novo synthesis of guanine nucleotides, and therefore plays an important role in the regulation of cell growth (By similarity). 
Sequence Annotation
 DOMAIN 95 153 CBS 1 (By similarity).
 DOMAIN 155 213 CBS 2 (By similarity).
 NP_BIND 301 303 NAD (By similarity).
 REGION 341 343 IMP binding (By similarity).
 REGION 364 365 IMP binding (By similarity).
 REGION 388 392 IMP binding (By similarity).
 ACT_SITE 308 308 Thioimidate intermediate (By similarity).
 METAL 303 303 Potassium; via carbonyl oxygen (By
 METAL 305 305 Potassium; via carbonyl oxygen (By
 METAL 308 308 Potassium; via carbonyl oxygen (By
 METAL 476 476 Potassium; via carbonyl oxygen; shared
 METAL 477 477 Potassium; via carbonyl oxygen; shared
 METAL 478 478 Potassium; via carbonyl oxygen; shared
 BINDING 250 250 NAD (By similarity).
 BINDING 306 306 IMP (By similarity).
 BINDING 422 422 IMP (By similarity).  
Keyword
 CBS domain; Complete proteome; GMP biosynthesis; Metal-binding; NAD; Oxidoreductase; Potassium; Purine biosynthesis; Reference proteome; Repeat. 
Sequence Source
 UniProt (SWISSPROT/TrEMBL); GenBank; EMBL 
Protein Length
 493 AA 
Protein Sequence
MDEGKILYEG LTFDDVLLLP DYSEVLPKEV SVRTRLTKRL FLNIPILSAA MDTVTEAEMA 60
IAMAREGGLG VIHKNLSIEA QAAMVRKVKR SEAGMIQDPV TLPPTATLED AERLMREYRI 120
GGLPVVDVYG RLLGLVTNRD LRFERDLKRP VTEVMTPVER LVTARPGTTL EEAEELLRRH 180
KVEKLPLVDE SGRLKGLITL KDIVKRRQYP NAVKDAQGRL LVGAAVGASK DLPERAQALV 240
EAGVDVLVLD SAHGHSKGIL EALAYLKETF GERVEVIAGN VATREGARAL AERGADAVKV 300
GIGPGSICTT RVVTGVGVPQ ITAILEAVAG VKDLDVPVIA DGGIKYTGDV AKAIAAGAHA 360
VMLGSMLAGT DEAPGEEVLK DGRRYKLYRG MGSLGAMKQG SADRYFQDPE KGETEAKKLV 420
PEGIEGMVPY KGPVADVLYQ IVGGLRSAMG YVGAPDIETF RKKARFVRMT MAGLIESHPH 480
DVVVVKEAPN YSR 493 
Gene Ontology
 GO:0003938; F:IMP dehydrogenase activity; IEA:HAMAP.
 GO:0046872; F:metal ion binding; IEA:HAMAP.
 GO:0000166; F:nucleotide binding; IEA:HAMAP.
 GO:0006177; P:GMP biosynthetic process; IEA:HAMAP. 
Interpro
 IPR013785; Aldolase_TIM.
 IPR000644; Cysta_beta_synth_core.
 IPR005990; IMP_DH.
 IPR015875; IMP_DH/GMP_Rdtase_CS.
 IPR001093; IMP_DH_GMPRt. 
Pfam
 PF00571; CBS
 PF00478; IMPDH 
SMART
 SM00116; CBS 
PROSITE
 PS51371; CBS
 PS00487; IMP_DH_GMP_RED 
PRINTS