UNC45B - unc-45 myosin chaperone B Gene

Also Known as CMYA4; MFM11; UNC45; CTRCT43; SMUNC45; UNC-45B

Species: Homo sapiens

Gene Type: protein coding
Gene ID: 146862

About UNC45B

Cytogenetic location: 17q12 Genomic coordinates (GRCh38): 17:35,147,817-35,189,345 (from NCBI)

This gene has 3 transcripts (splice variants), 218 orthologues, 18 paralogues and is associated with 6 phenotypes. Restricted expression toward heart (RPKM 36.4).

Summary

This gene encodes a co-chaperone required for folding and accumulation of type II myosins. The protein consists of three tetratricopeptide repeat motifs at the N-terminus that form a complex with heat shock protein 90, a central region of unknown function that is conserved in all Unc-45 proteins, and a C-terminal Unc-45/Cro1/She4 domain. The protein is expressed at high levels in striated muscle, where its muscle Myosin chaperone activity is dependent on heat shock protein 90 acting as a co-chaperone. A missense mutation in this gene has been associated with cataract development. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Apr 2015]

UNC45B Products (4)

mRNA Protein Name
NM_001033576.2 NP_001028748.1 protein unc-45 homolog B isoform 2
NM_001267052.2 NP_001253981.1 protein unc-45 homolog B isoform 2
NM_001308281.1 NP_001295210.1 protein unc-45 homolog B isoform 3
NM_173167.3 NP_775259.1 protein unc-45 homolog B isoform 1
Molecular Function GO Annotation Evidence References Source
enables protein binding IPI
IPI: Inferred from physical interaction
25036637 GOA
EXP: Inferred from Experiment IDA: Inferred from direct assay IPI: Inferred from physical interaction IMP: Inferred from mutant phenotype IGI: Inferred from genetic interaction IEP: Inferred from expression pattern

UNC45B Protein Structure

TPR_11

TPR_11: TPR repeat (6 - 73)

TPR_1

TPR_1: Tetratricopeptide repeat (78 - 110)

UNC45-central

UNC45-central: Myosin-binding striated muscle assembly central (273 - 489)

  • 0
  • 200
  • 400
  • 600
  • 800
  • 931 a.a.
Protein Preferred Names Protein Names

protein unc-45 homolog B

  • cardiomyopathy associated 4

UNC45B Protein-protein interaction Information

Type
Protein Name Protein ID Interactor Interactor Species Interactor ID Detection Method References
Intra
UNC45B Q8IWX7 HSP90AA1 Homo sapiens P07900 33961781
Intra
UNC45B Q8IWX7 HSP90AB1 Homo sapiens P08238 33961781
Intra
UNC45B Q8IWX7 HSP90AB1 Homo sapiens P08238 25036637
Cross: Cross-species interaction Intra: Intraspecies interaction

Related Diseases

Diseases Alias
Cataract 43
  • CTRCT43

  • Cataract, Type 43

Myofibrillar Myopathy 11
  • MFM11

  • Myopathy, Congenital, With Eccentric Cores

  • Myopathy, Myofibrillar, 11

Early-Onset Posterior Subcapsular Cataract
Myopathy
  • Muscular Diseases

  • Myopathies

Early-Onset Nuclear Cataract
Cardiomyopathy, Dilated, 1a
  • Dilated Cardiomyopathy 1a

  • Cdcd1

  • CMD1A

  • Cardiomyopathy, Familial Idiopathic

  • Familial Dilated Cardiomyopathy With Conduction Defect Due To Lmna Mutation

  • Cardiomyopathy, Dilated, With Conduction Defect 1

  • Cardiomyopathy, Idiopathic Dilated

  • Cardiomyopathy, Congestive

  • Dilated Cardiomyopathy With Conduction Defect 1

  • Cardiomyopathy Dilated With Conduction Defect Type 1

  • Cardiomyopathy, Dilated 1a

  • Cardiomyopathy Dilated With Conduction Defect 1

  • Cardiomyopathy, Dilated, Type 1a

Cardiomyopathy, Dilated, 1h
  • Dilated Cardiomyopathy 1h

  • Dilated Cardiomyopathy With Conduction Defect

  • CMD1H

  • Cardiomyopathy, Dilated, With Conduction Defect

Cataract
  • Cataracts

  • Cat - [Cataract]

  • Cataract Form

  • Lens Opacity

  • Lens Opacities

Dilated Cardiomyopathy
  • Familial Dilated Cardiomyopathy

  • Primary Dilated Cardiomyopathy

  • Idiopathic Dilated Cardiomyopathy

  • Congestive Cardiomyopathy

  • Idiopathic Dilation Cardiomyopathy

  • Primary Familial Dilated Cardiomyopathy

  • Cardiomyopathy, Dilated

  • DCM

  • Cardiomyopathy, Familial Dilated

  • Dilated Cardiomyopathy, Familial

  • Hypokinetic Dilated Cardiomyopathy, Familial

  • Familial Idiopathic Cardiomyopathy

  • Fdc

  • Cardiomyopathy, Familial Idiopathic

  • Idiopathic Cardiomegaly

  • Dilated Congestive Cardiomyopathy

  • Chronic Dilated Cardiomyopathy

  • Ccm - [Congestive Cardiomyopathy]

  • Cocm - [Congestive Cardiomyopathy]

  • Dcm - [Dilated Cardiomyopathy]

  • Dilated-Hypokinetic Cardiomyopathy

  • Congestive Idiopathic Cardiomyopathy

  • Primary Idiopathic Dilated Cardiomyopathy

Inflammatory Bowel Disease 27
  • IBD27

Myofibrillar Myopathy
  • Desmin Related Myopathy

  • Myotilinopathy

  • Myopathy, Myofibrillar

  • Alpha Beta Crystallinopathy

  • Desmin Storage Myopathy

  • Desminopathy

  • Filaminopathy

  • Protein Surplus Myopathy

  • Zaspopathy

  • Myofibrillar Myopathies

  • Myopathy, Myofibrillar, Desmin-Related

  • Myopathy, Desmin Storage

  • Mfm - [Myofibrillar Myopathy]

Muscular Dystrophy, Congenital, Due To Integrin Alpha-7 Deficiency
  • Congenital Muscular Dystrophy Due To Integrin Alpha-7 Deficiency

  • Muscular Dystrophy, Congenital, Due To Itga7 Deficiency

  • Congenital Muscular Dystrophy With Integrin Alpha-7 Deficiency

  • Congenital Muscular Dystrophy With Itga7 Deficiency

  • Congenital Myopathy Due To Integrin Alpha-7 Deficiency

  • Myopathy, Congenital, Due To Integrin Alpha-7 Deficiency

  • Muscular Dystrophy Congenital Due To Integrin Alpha-7 Deficiency

  • MDCI

  • Dystrophy, Muscular, Congenital, Due To Integrin Alpha-7 Deficiency

Inclusion Body Myopathy With Paget Disease Of Bone And Frontotemporal Dementia
  • Ibmpfd

  • Inclusion Body Myopathy With Early-Onset Paget Disease And Frontotemporal Dementia

  • Pagetoid Amyotrophic Lateral Sclerosis

  • Pagetoid Neuroskeletal Syndrome

  • Inclusion Body Myopathy With Paget Disease Of Bone And/Or Frontotemporal Dementia

  • Inclusion Body Myopathy With Early-Onset Paget Disease Of Bone And/Or Frontotemporal Dementia

  • Multisystem Proteinopathy

  • Limb-Girdle Muscular Dystrophy With Paget Disease Of Bone

  • Inclusion Body Myopathy With Paget'S Disease Of Bone And Frontotemporal Dementia

  • Inclusion Body Myopathy With Early-Onset Paget Disease And Frontotemporal Dement

  • Lower Motor Neuron Degeneration With Paget-Like Bone Disease

  • Muscular Dystrophy, Limb-Girdle, With Paget Disease Of Bone

  • Myopathy, Inclusion Body, With Early-Onset Paget Disease And Frontotemporal Dementia

Deafness, Autosomal Recessive 102
  • DFNB102

  • Autosomal Recessive Nonsyndromic Deafness 102

  • Autosomal Recessive Deafness 102

  • Deafness, Autosomal Recessive, 102

  • Deafness, Autosomal Recessive, Type 102

Nonaka Myopathy
  • Gne Myopathy

  • Hibm

  • Distal Myopathy With Rimmed Vacuoles

  • Hereditary Inclusion Body Myopathy

  • Ibm2

  • Inclusion Body Myopathy, Quadriceps-Sparing

  • Qsm

  • Dmrv

  • Distal Myopathy, Nonaka Type

  • Inclusion Body Myopathy 2

  • Inclusion Body Myopathy, Autosomal Recessive

  • NM

  • Nonaka Distal Myopathy

  • Myopathy, Distal, With Or Without Rimmed Vacuoles

  • Inclusion Body Myopathy, Hereditary, Autosomal Recessive

  • Inclusion Body Myopathy Type 2

  • Quadriceps-Sparing Myopathy

  • Quadriceps Sparing Myopathy

  • Rimmed Vacuole Myopathy

  • Inclusion Body Myopathy 2, Autosomal Recessive, Formerly

  • Ibm2, Formerly

  • Hibm2

  • Hereditary Inclusion Body Myopathy Type 2

  • Inclusion Body Myopathy 2, Autosomal Recessive

  • Myopathy, Distal, With Rimmed Vacuoles

  • Inclusion Body Myopathy Autosomal Recessive

  • Myopathy, Inclusion Body, Type 2

  • Myopathy, Nonaka

Diseases Alias
Waldenstroem'S Macroglobulinemia

Waldenstroem'S Macroglobulinemia

Waldenstroem'S Macroglobulinemia

Macroglobulinemia Of Waldenstrom

Lymphoplasmacytic Lymphoma With Igm Gammopathy

Lymphoplasmacytic Lymphoma

Waldenstroem'S Macroglobulinemia

Waldenstroem'S Macroglobulinemia

Macroglobulinemia Of Waldenstrom

Lymphoplasmacytic Lymphoma With Igm Gammopathy

Lymphoplasmacytic Lymphoma

Orthologs Information

Species Symbol Source ID
Macaca mulatta UNC45B VGNC VGNC:78954
Felis catus UNC45B VGNC VGNC:66826
Bos taurus UNC45B VGNC VGNC:36668
Rattus norvegicus UNC45B RGD RGD:1305666
Canis familiaris UNC45B VGNC VGNC:48138
Mus musculus UNC45B MGD MGI:2443377
Others UNC45B NCBI