background:
Diphthamide is a unique posttranslationally modified histidine found only in translation elongation factor-2 (EEF2; MIM 130610). This modification is conserved from archaebacteria to humans and serves as the target for ADP-ribosylation and inactivation of EEF2 by diphtheria toxin (DT) and Pseudomonas exotoxin A. DPH4 is 1 of several enzymes involved in synthesis of diphthamide in EEF2 (Liu et al., 2004 [PubMed 15485916]).[supplied by OMIM, Mar 2008]
Function:
Stimulates the ATPase activity of several Hsp70-type chaperones.
Subunit:
Monomer and homooligomer. Iron binding promotes oligomerization.
Subcellular Location:
Cytoplasm, cytoskeleton (By similarity).
Similarity:
Belongs to the DPH4 family.
Contains 1 DPH-type zinc finger.
Contains 1 J domain.
Database links:
Entrez Gene: 120526 Human
Entrez Gene: 99349 Mouse
Entrez Gene: 362184 Rat
Omim: 611072 Human
SwissProt: Q6P3W2 Human
SwissProt: Q91ZF0 Mouse
Unigene: 187269 Human
Unigene: 741895 Human
Unigene: 25661 Mouse
Important Note:
This product as supplied is intended for research use only, not for use in human, therapeutic or diagnostic applications.
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