MYO5A

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Aliases
External IDs	GeneCards: [1]
Orthologs
Species	Human	Mouse
Entrez	n/a	n/a
Ensembl	n/a	n/a
UniProt	n/a	n/a
RefSeq (mRNA)	n/a	n/a
RefSeq (protein)	n/a	n/a
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View/Edit Human

Myosin-Va is a protein that in humans is encoded by the MYO5A gene.

Interactions

MYO5A has been shown to interact with DYNLL1, RAB27A and DYNLL2. and RPGRIP1L

Clinical significance

Defects are associated with Griscelli syndrome type 1, also known as Elejalde syndrome.

Model organisms

Myo5a knockout mouse phenotype

Characteristic	Phenotype
Homozygote viability	Normal
Fertility	Normal
Body weight	Normal
Anxiety	Normal
Neurological assessment	Normal
Grip strength	Normal
Hot plate	Normal
Dysmorphology	Abnormal
Indirect calorimetry	Normal
Glucose tolerance test	Normal
Auditory brainstem response	Normal
DEXA	Normal
Radiography	Normal
Body temperature	Normal
Eye morphology	Normal
Clinical chemistry	Normal
Plasma immunoglobulins	Normal
Haematology	Normal
Micronucleus test	Normal
Heart weight	Normal
Tail epidermis wholemount	Abnormal
Skin Histopathology	Normal
Brain histopathology	Normal
Salmonella infection	Abnormal
Citrobacter infection	Normal
All tests and analysis from

Model organisms have been used in the study of MYO5A function. A conditional knockout mouse line, called Myo5a^{tm1e(KOMP)Wtsi} was generated as part of the International Knockout Mouse Consortium program — a high-throughput mutagenesis project to generate and distribute animal models of disease to interested scientists.

Male and female animals underwent a standardized phenotypic screen to determine the effects of deletion. Twenty five tests were carried out on mutant mice and three significant abnormalities were observed. Male homozygous mutants had abnormal hair cycles, coat colouration and an increased susceptibility to bacterial infection.

See also

• Myosin

Further reading

• Moore KJ, Testa JR, Francke U, Milatovich A, Copeland NG, Jenkins NA (1995). "Cloning and regional assignment of the human myosin heavy chain 12 (MYH12) gene to chromosome band 15q21". Cytogenetics and Cell Genetics. 69 (1–2): 53–8. doi:10.1159/000133937. PMID 7835087.
• Pastural E, Barrat FJ, Dufourcq-Lagelouse R, Certain S, Sanal O, Jabado N, Seger R, Griscelli C, Fischer A, de Saint Basile G (Jul 1997). "Griscelli disease maps to chromosome 15q21 and is associated with mutations in the myosin-Va gene". Nature Genetics. 16 (3): 289–92. doi:10.1038/ng0797-289. PMID 9207796.
• Lambert J, Naeyaert JM, Callens T, De Paepe A, Messiaen L (Nov 1998). "Human myosin V gene produces different transcripts in a cell type-specific manner". Biochemical and Biophysical Research Communications. 252 (2): 329–33. doi:10.1006/bbrc.1998.9644. PMID 9826529.
• Buss F, Kendrick-Jones J, Lionne C, Knight AE, Côté GP, Paul Luzio J (Dec 1998). "The localization of myosin VI at the golgi complex and leading edge of fibroblasts and its phosphorylation and recruitment into membrane ruffles of A431 cells after growth factor stimulation". The Journal of Cell Biology. 143 (6): 1535–45. doi:10.1083/jcb.143.6.1535. PMC 2132970. PMID 9852149.
• El-Husseini AE, Vincent SR (Jul 1999). "Cloning and characterization of a novel RING finger protein that interacts with class V myosins". The Journal of Biological Chemistry. 274 (28): 19771–7. doi:10.1074/jbc.274.28.19771. PMID 10391919.
• Mehta AD, Rock RS, Rief M, Spudich JA, Mooseker MS, Cheney RE (Aug 1999). "Myosin-V is a processive actin-based motor". Nature. 400 (6744): 590–3. doi:10.1038/23072. PMID 10448864.
• Edgar AJ, Bennett JP (Aug 1999). "Inhibition of dendrite formation in mouse melanocytes transiently transfected with antisense DNA to myosin Va". Journal of Anatomy. 195 (2): 173–84. doi:10.1046/j.1469-7580.1999.19520173.x. PMC 1467982. PMID 10529054.
• Pastural E, Ersoy F, Yalman N, Wulffraat N, Grillo E, Ozkinay F, Tezcan I, Gediköglu G, Philippe N, Fischer A, de Saint Basile G (Feb 2000). "Two genes are responsible for Griscelli syndrome at the same 15q21 locus". Genomics. 63 (3): 299–306. doi:10.1006/geno.1999.6081. PMID 10704277.
• Lambert J, Naeyaert JM, De Paepe A, Van Coster R, Ferster A, Song M, Messiaen L (Apr 2000). "arg-cys substitution at codon 1246 of the human myosin Va gene is not associated with Griscelli syndrome". The Journal of Investigative Dermatology. 114 (4): 731–3. doi:10.1046/j.1523-1747.2000.00933.x. PMID 10733681.
• Naisbitt S, Valtschanoff J, Allison DW, Sala C, Kim E, Craig AM, Weinberg RJ, Sheng M (Jun 2000). "Interaction of the postsynaptic density-95/guanylate kinase domain-associated protein complex with a light chain of myosin-V and dynein". The Journal of Neuroscience. 20 (12): 4524–34. PMID 10844022.
• Lo KW, Naisbitt S, Fan JS, Sheng M, Zhang M (Apr 2001). "The 8-kDa dynein light chain binds to its targets via a conserved (K/R)XTQT motif". The Journal of Biological Chemistry. 276 (17): 14059–66. doi:10.1074/jbc.M010320200. PMID 11148209.
• Ohkawa N, Kokura K, Matsu-Ura T, Obinata T, Konishi Y, Tamura TA (Jul 2001). "Molecular cloning and characterization of neural activity-related RING finger protein (NARF): a new member of the RBCC family is a candidate for the partner of myosin V". Journal of Neurochemistry. 78 (1): 75–87. doi:10.1046/j.1471-4159.2001.00373.x. PMID 11432975.
• Fukuda M, Kuroda TS, Mikoshiba K (Apr 2002). "Slac2-a/melanophilin, the missing link between Rab27 and myosin Va: implications of a tripartite protein complex for melanosome transport". The Journal of Biological Chemistry. 277 (14): 12432–6. doi:10.1074/jbc.C200005200. PMID 11856727.
• Rodriguez OC, Cheney RE (Mar 2002). "Human myosin-Vc is a novel class V myosin expressed in epithelial cells". Journal of Cell Science. 115 (Pt 5): 991–1004. PMID 11870218.
• Strom M, Hume AN, Tarafder AK, Barkagianni E, Seabra MC (Jul 2002). "A family of Rab27-binding proteins. Melanophilin links Rab27a and myosin Va function in melanosome transport". The Journal of Biological Chemistry. 277 (28): 25423–30. doi:10.1074/jbc.M202574200. PMID 11980908.
• Wu X, Wang F, Rao K, Sellers JR, Hammer JA (May 2002). "Rab27a is an essential component of melanosome receptor for myosin Va". Molecular Biology of the Cell. 13 (5): 1735–49. doi:10.1091/mbc.01-12-0595. PMC 111140. PMID 12006666.
• Anikster Y, Huizing M, Anderson PD, Fitzpatrick DL, Klar A, Gross-Kieselstein E, Berkun Y, Shazberg G, Gahl WA, Hurvitz H (Aug 2002). "Evidence that Griscelli syndrome with neurological involvement is caused by mutations in RAB27A, not MYO5A". American Journal of Human Genetics. 71 (2): 407–14. doi:10.1086/341606. PMC 379173. PMID 12058346.
• Nagashima K, Torii S, Yi Z, Igarashi M, Okamoto K, Takeuchi T, Izumi T (Apr 2002). "Melanophilin directly links Rab27a and myosin Va through its distinct coiled-coil regions". FEBS Letters. 517 (1–3): 233–8. doi:10.1016/S0014-5793(02)02634-0. PMID 12062444.