Camello, a novel family of Histone Acetyltransferases that acetylate histone H4 and is essential for zebrafish development

In this study, we have investigated genome-wide occurrence of Histone Acetyltransferases (HATs) in genomes of Mus musculus and Danio rerio on the basis of presence of HAT domain. Our study identified a group of proteins that lacks characteristic features of known HAT families, relatively smaller in...

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Bibliographic Details
Published in:Scientific reports 2014-08, Vol.4 (1), p.6076-6076, Article 6076
Main Authors: Karmodiya, Krishanpal, Anamika, Krishanpal, Muley, Vijaykumar, Pradhan, Saurabh J., Bhide, Yoshita, Galande, Sanjeev
Format: Article
Language:English
Subjects:
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Acetylation
Amino Acid Sequence
Animals
Body Patterning - genetics
Cell Line, Tumor
Elongation
Embryos
Gene Knockdown Techniques
Genomes
HeLa Cells
Histone Acetyltransferases - genetics
Histone Acetyltransferases - metabolism
Histone H4
Histones - metabolism
Humanities and Social Sciences
Humans
Localization
Lysine - chemistry
Mice
Molecular Sequence Data
Morpholinos - genetics
multidisciplinary
Phylogeny
Protein Processing, Post-Translational
Proteins
Science
Sequence Alignment
Zebrafish
Zebrafish - embryology
Zinc Fingers - genetics
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Summary:In this study, we have investigated genome-wide occurrence of Histone Acetyltransferases (HATs) in genomes of Mus musculus and Danio rerio on the basis of presence of HAT domain. Our study identified a group of proteins that lacks characteristic features of known HAT families, relatively smaller in size and has no other associated domains. Most of the proteins in this unclassified group are Camello proteins, which are not yet known and classified as functional HATs. Our in vitro and in vivo analysis revealed that Camello family proteins are active HATs and exhibit specificity towards histone H4. Interestingly, Camello proteins are among the first identified HATs showing perinuclear localization. Moreover, Camello proteins are evolutionarily conserved in all chordates and are observed for the first time in cnidarians in phylogeny. Furthermore, knockdown of Camello protein (CMLO3) in zebrafish embryos exhibited defects in axis elongation and head formation. Thus, our study identified a novel family of active HATs that is specific for histone H4 acetylation, exhibits perinuclear localization and is essential for zebrafish development.
ISSN:2045-2322
2045-2322
DOI:10.1038/srep06076