1. Gene
  2. TTC21B - tetratricopeptide repeat domain 21B Gene

TTC21B - tetratricopeptide repeat domain 21B Gene

Homo sapiens

Also known as ATD4; THM1; FAP60; FLA17; SRTD4; CFAP60; IFT139; JBTS11; NPHP12; IFT139B; Nbla10696

Gene ID: 79809 | Gene type: protein coding

About TTC21B

Cytogenetic location: 2q24.3 Genomic coordinates (GRCh38): 2:165,873,362-165,953,776 (from NCBI)

This gene has 35 transcripts (splice variants), 204 orthologues, 1 paralogue and is associated with 4 phenotypes. Ubiquitous expression in prostate (RPKM 1.9), ovary (RPKM 1.8) and 25 other tissues.

Summary

This gene encodes a member of TTC21 family, containing several tetratricopeptide repeat (TPR) domains. This protein is localized to the cilium axoneme, and may play a role in retrograde intraflagellar transport in cilia. Mutations in this gene are associated with various ciliopathies, nephronophthisis 12, and asphyxiating thoracic dystrophy 4. [provided by RefSeq, Oct 2011]

TTC21B Products(1)

mRNA Protein Name
NM_024753.5 NP_079029.3 tetratricopeptide repeat protein 21B
Gene Ontology
  • Molecular Function
  • Biological Process
  • Cellular Component
Molecular Function GO Annotation Evidence Reference Source
enables protein binding IPI
IPI: Inferred from physical interaction
29220510 GOA
Biological Process GO Annotation Evidence Reference Source
acts upstream of or within protein localization to cilium IMP
IMP: Inferred from mutant phenotype
20889716 GOA
involved in regulation of intraciliary retrograde transport IMP
IMP: Inferred from mutant phenotype
27932497 GOA
acts upstream of or within regulation of transcription by RNA polymerase II IMP
IMP: Inferred from mutant phenotype
22302990 GOA
Cellular Component GO Annotation Evidence Reference Source
part of intraciliary transport particle A IDA
IDA: Inferred from direct assay
20889716 GOA
part of intraciliary transport particle A IPI
IPI: Inferred from physical interaction
27173435 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

TTC21B Protein Structure

TPR_6

TPR_6: Tetratricopeptide repeat (180 - 209)

TPR_9

TPR_9: Tetratricopeptide repeat (499 - 535)

TPR_11

TPR_11: TPR repeat (723 - 784)

TPR_2

TPR_2: Tetratricopeptide repeat (791 - 820)

TPR_19

TPR_19: Tetratricopeptide repeat (895 - 960)

TPR_1

TPR_1: Tetratricopeptide repeat (1198 - 1229)

  • 0
  • 300
  • 600
  • 900
  • 1200
  • 1316 a.a.
Protein Preferred Names Protein Names

tetratricopeptide repeat protein 21B

Nephronophthisis type12

Related Diseases

Diseases Alias
Nephronophthisis 12

NPHP12

Joubert Syndrome 11

JBTS11

Nephronophthisis, Type 12

Short-Rib Thoracic Dysplasia 4 With Or Without Polydactyly

Asphyxiating Thoracic Dystrophy 4

SRTD4

Atd4

Jatd

Jeune Asphyxiating Thoracic Dystrophy

Jeune Syndrome 4

Infantile Nephronophthisis

Autosomal Recessive Infantile Nphp

Autosomal Recessive Infantile Nephronophthisis

Nephronophthisis 2

Short-Rib Thoracic Dysplasia 1 With Or Without Polydactyly

Asphyxiating Thoracic Dystrophy 1

Jeune Syndrome

SRTD1

Atd1

Asphyxiating Thoracic Dystrophy Of The Newborn

Jatd

Jeune Asphyxiating Thoracic Dystrophy

Thoracic-Pelvic-Phalangeal Dystrophy

Atd

Asphyxiating Thoracic Dystrophy

Chondroectodermal Dysplasia-Like Syndrome

Infantile Thoracic Dystrophy

Jeune'S Syndrome

Thoracic Pelvic Phalangeal Dystrophy

Jeune Thoracic Dystrophy

Nephronophthisis 2

NPHP2

Nph2

Nephronophthisis 2, Infantile

Infantile Nephronophthisis 2

Infantile Nephronophthisis

Nephronophthisis, Type 2

Asphyxiating Thoracic Dystrophy

Jeune Thoracic Dystrophy

Jeune Syndrome

Asphyxiating Thoracic Dysplasia

Short-Rib Thoracic Dysplasia With Or Without Polydactyly

Thoracic Pelvic Phalangeal Dystrophy

Asphyxiating Thoracic Chondrodystrophy

Atd

Chondroectodermal Dysplasia-Like Syndrome

Infantile Thoracic Dystrophy

Jeune Thoracic Dysplasia

Thoracic Asphyxiant Dystrophy

Thoracic-Pelvic-Phalangeal Dystrophy

Short-Rib Thoracic Dysplasia Without Polydactyly

Asphyxiating Thoracic Dystrophy Of The Newborn

Asphyxiating Thorax Dystrophy

Nephrotic Syndrome, Type 1

Finnish Congenital Nephrosis

NPHS1

Cnf

Finnish Congenital Nephrotic Syndrome

Nephrotic Syndrome Type 1

Nephrosis, Congenital

Congenital Nephrotic Syndrome

Nephrotic Syndrome, Congenital

Congenital Nephrotic Syndrome Finnish Type

Congenital Nephrotic Syndrome 1

Nephrosis 1, Congenital, Finnish Type

Congenital Nephrotic Syndrome, Finnish Type

Nephrotic Syndrome 1

Congenital Nephrotic Syndrome Of The Finnish Type

Senior-Loken Syndrome 1

Senior-Loken Syndrome

Renal Dysplasia And Retinal Aplasia

Renal-Retinal Syndrome

Loken-Senior Syndrome

Juvenile Nephronophthisis With Leber Amaurosis

SLSN1

Senior-Loken Syndrome-1

Loken Senior Syndrome

Senior Loken Syndrome

Renal Dysplasia Retinal Aplasia

Nephronophthisis With Retinal Dystrophy

Renal Dysplasia-Retinal Aplasia Syndrome

Slsn

Short-Rib Thoracic Dysplasia 6 With Or Without Polydactyly

Majewski Syndrome

SRTD6

Srps2a

Short Rib-Polydactyly Syndrome, Majewski Type

Polydactyly With Neonatal Chondrodystrophy, Type Ii

Short Rib-Polydactyly Syndrome Type Iia

Short Rib-Polydactyly Syndrome Type 2

Short Rib-Polydactyly Syndrome Type Ii

Short Rib-Polydactyly Syndrome, Type Ii

Srps, Type Ii

Short Rib-Polydactyly Syndrome, Type Iia

Polydactyly With Neonatal Chondrodystrophy Type 2

Srps Type 2

Short Rib-Polydactyly Syndrome Majewski Type

Polydactyly With Neonatal Chondrodystrophy Type Ii

Short Rib-Polydactyly Syndrome 2a

Srps Type Ii

Nephronophthisis

Medullary Cystic Disease

Medullary Cystic Kidney

Nph

Nphp

Kidney Disease, Cystic, Medullary

Nephrotic Syndrome

Finnish Congenital Nephrotic Syndrome

Ns - [Nephrotic Syndrome]

Nephrosis Syndrome

Nephrosis Nos

Glomerular Lesion Nephrosis

Short-Rib Thoracic Dysplasia 12

Beemer-Langer Syndrome

Type Iv Short Rib Polydactyly Syndrome

Short Rib-Polydactyly Syndrome Type 4

Short Rib-Polydactyly Syndrome, Beemer Type

SRTD12

Short Rib-Polydactyly Syndrome, Type Iv

Srps4

Srps Iv

Short Rib Syndrome, Beemer Type

Beemer Langer Syndrome

Srps Type 4

Short Rib Polydactyly Syndrome Beemer-Langer Type

Short Rib-Polydactyly Syndrome Beemer Type

Short Rib-Polydactyly Syndrome Type Iv

Short Rib-Polydactyly Syndrome, Beemer-Langer Type

Juvenile Nephronophthisis

Nephronophthisis

Nephronophthisis, Familial Juvenile

Epilepsy

Epilepsy Syndrome

Epileptic Syndrome

Epilepsies

Symptomatic Epilepsies

Post Traumatic Epilepsy

Traumatic Epilepsy

Traumatic Epileptic

Epilepsy Due To Hippocampal Sclerosis

Epilepsy With Ammon'S Horn Sclerosis

Epilepsy Due To Cortical Dysplasia

Epilepsy Due To Neuronal Migration Disorders

Fundus Dystrophy

Retinal Dystrophy

Retinal Dystrophies

Dystrophy, Retinal

Joubert Syndrome 1

Joubert Syndrome

Jbts

Cerebellooculorenal Syndrome 1

JBTS1

Joubert-Boltshauser Syndrome

Cerebelloparenchymal Disorder Iv

Cpd4

Cors1

Joubert Syndrome And Related Disorders

Jsrd

Familial Aplasia Of The Vermis

Joubert Syndrome Related Disorders

Js

Cerebellar Vermis Agenesis

Cerebelloparenchymal Disorder 4

Agenesis Of Cerebellar Vermis

Cerebello-Oculo-Renal Syndrome

Cors

Joubert-Bolthauser Syndrome

Cpd Iv

Classic Joubert Syndrome

Joubert Syndrome Type A

Pure Joubert Syndrome

Cerebello-Oculo-Renal Syndrome 1

Joubert Syndrome-1

Joubert Syndrome, Type 1

Joubert'S Syndrome

Ciliopathy
Bardet-Biedl Syndrome

Bbs

Biedl-Bardet Syndrome

Connective Tissue Disease

Connective Tissue Diseases

Connective Tissue Disorder

Abnormality Of Connective Tissue

Disorder Of Connective Tissue

Connective Tissue Disorders

Short-Rib Thoracic Dysplasia 7 With Or Without Polydactyly

SRTD7

Srps5

Short Rib-Polydactyly Syndrome Type V

Short-Rib Thoracic Dysplasia 7/20 With Polydactyly, Digenic

Short Rib-Polydactyly Syndrome, Type V

Short Rib-Polydactyly Syndrome Type 5

Srps Type V

SRTD7/20

Short-Rib Thoracic Dysplasia 7 Without Polydactyly

Ellis-Van Creveld Syndrome

Chondroectodermal Dysplasia

Mesoectodermal Dysplasia

EVC

Ellis Van Creveld Syndrome

Mesodermic Dysplasia

Ellis-Van Creveld Dysplasia

Polydactyly

Non-Syndromic Polydactyly

Polydactyly, Postaxial

Postaxial Polydactyly

Supernumerary Digit

Extra Digits

Hyperdactyly

Polydactylia

Polydactylism

Supernumerary Digits

Cranioectodermal Dysplasia

Sensenbrenner Syndrome

Levin Syndrome 1

Ced

Levin Syndrome

Dysplasia, Cranioectodermal

Joubert Syndrome 17

JBTS17

Joubert Syndrome, Type 17

Diabetes Insipidus, Nephrogenic, 2, Autosomal

Diabetes Insipidus, Nephrogenic, Autosomal

NDI2

Diabetes Insipidus, Nephrogenic, Type Ii

Diabetes Insipidus, Nephrogenic, 2

Nephrogenic Diabetes Insipidus Type 2

Autosomal Nephrogenic Diabetes Insipidus-2

Diabetes Insipidus, Nephrogenic Type 2

ANDI

Diabetes Insipidus Nephrogenic Type 2

Doid:0081061

Nephrogenic Diabetes Insipidus

Congenital Nephrogenic Diabetes Insipidus

Adh-Resistant Diabetes Insipidus

Short-Rib Thoracic Dysplasia 3 With Or Without Polydactyly

Asphyxiating Thoracic Dystrophy 3

Saldino-Noonan Syndrome

SRTD3

Atd3

Srps1

Srps3

Verma-Naumoff Syndrome

Srps2b

Short Rib-Polydactyly Syndrome, Verma-Naumoff Type

Short Rib-Polydactyly Syndrome, Type I

Polydactyly With Neonatal Chondrodystrophy, Type I

Polydactyly With Neonatal Chondrodystrophy, Type Iii

Short Rib-Polydactyly Syndrome, Type Iib

Short Rib-Polydactyly Syndrome Type 3

Polydactyly With Neonatal Chondrodystrophy Type Iii

Short Rib-Polydactyly Syndrome Type Iii

Short Rib-Polydactyly Syndrome Type 1

Short Rib-Polydactyly Syndrome, Saldino-Noonan Type

Majewski Syndrome

Short Rib-Polydactyly Syndrome, Type Iii

Type I Short Rib Polydactyly Syndrome

Srps Type 3

Short Rib Polydactyly Syndrome Verma Naumoff Type

Verma Naumoff Syndrome

Polydactyly With Neonatal Chondrodystrophy Type 1

Srps Type 1

Short Rib-Polydactyly Syndrome Saldino-Noonan Type

Jatd

Jeune Asphyxiating Thoracic Dystrophy

Jeune Syndrome 3

Polydactyly With Neonatal Chondrodystrophy Type I

Short Rib-Polydactyly Syndrome Type I

Short Rib-Polydactyly Syndrome Type Iib

Srps Type Iib

Srps Type Iii

Short-Rib Thoracic Dysplasia 5 With Or Without Polydactyly

Asphyxiating Thoracic Dystrophy 5

SRTD5

Atd5

Jatd

Jeune Asphyxiating Thoracic Dystrophy

Jeune Syndrome 5

End Stage Renal Disease

End Stage Renal Failure

End-Stage Kidney Disease

Kidney Failure, Chronic

Chronic Kidney Disease Stage 5

Hydrolethalus Syndrome 1

Hydrolethalus Syndrome

HLS1

Salonen-Herva-Norio Syndrome

Hls

Hydrolethalus

Hydrolethalus Syndrome, Type 1

Retinitis Pigmentosa 37

RP37

Retinitis Pigmentosa-37

Retinitis Pigmentosa, Type 37

Weyers Acrofacial Dysostosis

Curry-Hall Syndrome

Weyers Acrodental Dysostosis

WAD

Acrodental Dysostosis Of Weyers

Acrofacial Dysostosis, Weyers Type

Acrofacial Dysostosis Of Weyers

Curry Hall Syndrome

Short-Rib Thoracic Dysplasia 9 With Or Without Polydactyly

Conorenal Syndrome

Saldino-Mainzer Syndrome

SRTD9

Mainzer-Saldino Syndrome

Mzsds

Mainzer-Saldino Disease

Renal Dysplasia, Retinal Pigmentary Dystrophy, Cerebellar Ataxia, And Skeletal Dysplasia

Renal Dysplasia, Retinal Pigmentary Dystrophy, Cerebellar Ataxia And Skeletal Dysplasia

Renal Dysplasia, Retinal Pigmentary Dystrophy, Cerebellar Ataxia And Skeletal Dy

Mainzer Saldino Syndrome

Conorenal Dysplasia

Mainzer-Saldino Chondrodysplasia

Saldino-Mainzer Dysplasia

Short-Rib Thoracic Dysplasia 9

Renal Dysplasia-Retinal Pigmentary Dystrophy-Cerebellar Ataxia-Skeletal Dysplasia Syndrome

Mss

Renal Dysplasia Retinal Pigmentary Dystrophy Cerebellar Ataxia And Skeletal Dysplasia

Joubert Syndrome 13

JBTS13

Joubert Syndrome, Type 13

Meckel Syndrome, Type 1

Meckel-Gruber Syndrome

Meckel Syndrome

Dysencephalia Splanchnocystica

Meckel Syndrome 1

MKS1

Mks

Gruber Syndrome

Meckel-Gruber Syndrome, Type 1

Mes

Dysencephalia Splachnocystica

Meckel Gruber Syndrome

Meckel Syndrome Type 1

Nephronophthisis 9

NPHP9

Nephronophthisis, Type 9

Microcephaly, Autosomal Dominant

Autosomal Dominant Microcephaly

Microcephaly Autosomal Dominant

Autosomal Dominant Primary Microcephaly

Microcephaly With Autosomal Dominant Inheritance

Retinal Degeneration

Degeneration Of Retina

Acrofacial Dysostosis
Joubert Syndrome 3

JBTS3

Joubert Syndrome With Ocular Defect

Joubert Syndrome With Ocular Anomalies

Js-O

Joubert Syndrome With Retinopathy

Joubert Syndrome-3

Joubert Syndrome, Type 3

Coach Syndrome 1

Coach Syndrome

Joubert Syndrome With Congenital Hepatic Fibrosis

Gentile Syndrome

Joubert Syndrome With Hepatic Defect

Js-H

COACH1

Cerebellar Vermis Hypo/Aplasia, Oligophrenia, Congenital Ataxia, Ocular Coloboma, And Hepatic Fibrosis

Cerebellar Vermis Hypoplasia-Oligophrenia-Congenital Ataxia-Coloboma-Hepatic Fibrosis

Cerebellar Vermis Hypo/Aplasia, Oligophrenia, Ataxia Congenital, Coloboma, And Hepatic Fibrosis

Cerebellar Vermis Hypo/Aplasia Oligophrenia Congenital Ataxia Ocular Coloboma And Hepatic Fibrosis

Orofaciodigital Syndrome Vi

OFD6

Varadi-Papp Syndrome

Varadi Syndrome

Joubert Syndrome With Orofaciodigital Defect

Orofaciodigital Syndrome Type 6

Orofaciodigital Syndrome 6

Oral-Facial-Digital Syndrome, Type Vi

Ofds Vi

Polydactyly, Cleft Lip/Palate Or Lingual Lump, And Psychomotor Retardation

Polydactyly Cleft Lip Palate Psychomotor Retardation

Oral-Facial-Digital Syndrome Type 6

Polydactyly-Cleft Lip/Palate-Psychomotor Retardation Syndrome

Polydactyly - Cleft Lip/Palate - Psychomotor Retardation

Váradi Syndrome

Váradi-Papp Syndrome

Joubert Syndrome With Oral-Facial-Digital Syndrome

Oral-Facial-Digital Syndrome 6

Joubert-Orofaciodigital Syndrome

Orofaciodigital Syndrome, Type Vi

Cystic Kidney Disease

Renal Cyst

Simple Renal Cyst

Kidney Cysts

Kidney Diseases, Cystic

Renal Cysts

Kidney Cyst

Cystic Kidney

Congenital Cystic Kidney Disease

Cystic Kidney Diseases

Bosniak 1 Cyst

Polycystic Kidney Disease 4 With Or Without Polycystic Liver Disease

Autosomal Recessive Polycystic Kidney Disease

Arpkd

Polycystic Kidney Disease, Autosomal Recessive

Polycystic Kidney And Hepatic Disease 1

Pkhd1

PKD4

Polycystic Kidney Disease 4 With Or Without Hepatic Disease

Polycystic Kidney Disease, Infantile, Type I

Polycystic Kidney Disease, Infantile Type

Polycystic Kidney, Autosomal Recessive

Pkd3, Formerly

Polycystic Kidney Disease 4, With Or Without Hepatic Disease

Arpkd/Chf

Ar-Pkd

Polycystic Kidney Disease 4, With Or Without Polycystic Liver Disease

Infantile Polycystic Kidney Disease Type I

Pkd3

Kidney, Polycystic, Disease, Type 4, With/Without Hepatic Disease

Polycystic Kidney Disease 3, Autosomal Dominant

Visceral Heterotaxy

Situs Ambiguus

Heterotaxia

Heterotaxy Syndrome

Heterotaxy

Lateralization Defect

Situs Ambiguous

Left Isomerism

Htx

Ivemark Syndrome

Right Isomerism

Situs Ambiguus Viscerum

Incomplete Situs Inversus

Partial Situs Inversus

Heterotaxy, Visceral

Asplenia Syndrome

Bilateral Left-Sidedness

Polysplenia Syndrome

Moller Syndrome

Situs Inversus

Situs Inversus Viscerum

Laterality Sequence

Complete Transposition

Siv

Autosomal Dominant Polycystic Kidney Disease

Polycystic Kidney Disease, Adult Type

Adpkd

Polycystic Kidney Diseases

Polycystic Kidney, Autosomal Dominant

Congenital Biliary Ectasias

Polycystic Kidney And Hepatic Disease 1

Polycystic Kidney Disease, Autosomal Dominant

Kidney, Polycystic, Disease, Autosomal Dominant

Adult Polycystic Kidney Disease

Polycystic Kidney, Adult Type

Apckd - [Autosomal Polycystic Kidney Disease]

Coloboma Of Macula

Coloboma

Congenital Ocular Coloboma

Microphthalmia, Isolated, With Coloboma

Agenesis Of Macula

Hereditary Macular Coloboma

Ocular Coloboma

Coloboma Of Eye

Macular Coloboma

Uveoretinal Coloboma

Polycystic Kidney Disease

Polycystic Kidney Diseases

Pkd

Polycystic Renal Disease

Kidney Disease, Polycystic

Polycystic Kidney, Autosomal Dominant

Primary Ciliary Dyskinesia

Immotile Cilia Syndrome

Kartagener Syndrome

Dextrocardia Bronchiectasis And Sinusitis

Pcd

Ciliary Motility Disorders

Ciliary Motility Disorder

Immotile Ciliary Syndrome

Ciliary Dyskinesia Primary

Ics

Polynesian Bronchiectasis

Dextrocardia-Bronchiectasis-Sinusitis Syndrome

Immotile Cilia Syndrome, Kartagener Type

Primary Ciliary Dyskinesia And Situs Inversus

Primary Ciliary Dyskinesia, Kartagener Type

Siewert Syndrome

Dyskinesia, Ciliary, Primary

Leber Plus Disease

Leber Congenital Amaurosis

Lca

Leber'S Amaurosis

Leber'S Disease

Amaurosis Congenita Of Leber

Amaurosis Congenita Of Leber, Type 1

Lhon Plus Disease

Congenital Absence Of The Rods And Cones

Congenital Retinal Blindness

Crb

Congenital Amaurosis Of Retinal Origin

Leber'S Congenital Amaurosis

Leber Congenital Amaurosis 1

Leber'S Congenital Tapetoretinal Degeneration

Leber'S Congenital Tapetoretinal Dysplasia

Lca1

Leber Congenital Amaurosis Type 1

Retinal Blindness, Congenital

Amaurosis, Leber Congenital

Dysgenesis Neuroepithelialis Retinae

Hereditary Epithelial Dysplasia Of Retina

Hereditary Retinal Aplasia

Heredoretinopathia Congenitalis

Leber Abiotrophy

Leber Congenital Tapetoretinal Degeneration

Lebers Congenital Amaurosis

Optic Atrophy, Hereditary, Leber

Retinitis Pigmentosa

RP

Rod-Cone Dystrophy

Autosomal Recessive Retinitis Pigmentosa

Non-Syndromic Retinitis Pigmentosa

Pericentral Pigmentary Retinopathy

Pigmentary Retinopathy

Tapetoretinal Degeneration

Rcd

Retinitis Pigmentosa Autosomal Recessive

ARRP

Retinitis Pigmentosa, Autosomal Recessive

Retinitis Pigmentosa 1

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
Canis familiaris TTC21B VGNC VGNC:47943
Felis catus TTC21B VGNC VGNC:66657
Mus musculus TTC21B MGD MGI:1920918
Macaca mulatta TTC21B VGNC VGNC:79528
Rattus norvegicus TTC21B RGD RGD:1565122
Bos taurus TTC21B VGNC VGNC:36460