Gene
Entrez ID Entrez Gene ID - the GENE ID in NCBI Gene database.
79809
Gene name Gene Name - the full gene name approved by the HGNC.
Tetratricopeptide repeat domain 21B
Gene symbol Gene Symbol - the official gene symbol approved by the HGNC.
TTC21B
Synonyms (NCBI Gene) Gene synonyms aliases
ATD4, CFAP60, FAP60, FLA17, IFT139, IFT139B, JBTS11, NPHP12, Nbla10696, SRTD4, THM1
Chromosome Chromosome number
2
Chromosome location Chromosomal Location - indicates the cytogenetic location of the gene or region on the chromosome.
2q24.3
Summary Summary of gene provided in NCBI Entrez Gene.
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 associa
SNPs SNP information provided by dbSNP.
SNP ID Visualize variation Clinical significance Consequence
rs76726265 C>T Conflicting-interpretations-of-pathogenicity, likely-benign Coding sequence variant, missense variant
rs79746977 G>A Pathogenic Coding sequence variant, stop gained
rs139441507 G>A Conflicting-interpretations-of-pathogenicity, uncertain-significance, benign-likely-benign Coding sequence variant, missense variant
rs140384742 G>A Conflicting-interpretations-of-pathogenicity Genic downstream transcript variant, coding sequence variant, missense variant, 3 prime UTR variant
rs146320075 T>C Conflicting-interpretations-of-pathogenicity, uncertain-significance Missense variant, coding sequence variant
miRNA miRNA information provided by mirtarbase database.
miRTarBase ID miRNA Experiments Reference
MIRT046982 hsa-miR-218-5p CLASH 23622248
MIRT696584 hsa-miR-3974 HITS-CLIP 23313552
MIRT696583 hsa-miR-624-3p HITS-CLIP 23313552
MIRT696582 hsa-miR-6808-5p HITS-CLIP 23313552
MIRT696581 hsa-miR-6893-5p HITS-CLIP 23313552
Gene ontology (GO) Gene ontology information of associated ontologies with gene provided by GO database.
GO ID Ontology Definition Evidence Reference
GO:0003682 Function Chromatin binding IEA
GO:0005515 Function Protein binding IPI 29220510
GO:0005737 Component Cytoplasm IEA
GO:0005856 Component Cytoskeleton IEA
GO:0005929 Component Cilium IEA
Other IDs Other ids provides unique ids of gene in databases such as OMIM, HGNC, ENSEMBLE.
MIM HGNC e!Ensembl
612014 25660 ENSG00000123607
Protein
UniProt ID Q7Z4L5
Protein name Tetratricopeptide repeat protein 21B (TPR repeat protein 21B) (Intraflagellar transport 139 homolog)
Protein function Component of the IFT complex A (IFT-A), a complex required for retrograde ciliary transport and entry into cilia of G protein-coupled receptors (GPCRs). Essential for retrograde trafficking of IFT-1, IFT-B and GPCRs (PubMed:27932497). Negatively
PDB 8BBE , 8BBG , 8FGW
Family and domains

Pfam

Accession ID Position in sequence Description Type
PF13181 TPR_8 722 755 Tetratricopeptide repeat Repeat
PF13181 TPR_8 790 822 Tetratricopeptide repeat Repeat
PF14559 TPR_19 894 961 Domain
Sequence
MDSQELKTLINYYCQERYFHHVLLVASEGIKRYGSDPVFRFYHAYGTLMEGKTQEALREF
EAIKNKQDVSLCSLLALIYAHKMSPNPDREAILESDARVKEQRKGAGEKALYHAGLFLWH
IGRHDKAREYIDRMIKISDGSKQGHVLKAWLDITRGKEPYTKKALKYFEEGLQDGNDTFA
LLGKAQCLEMRQNYSGALETVNQIIVNFPSFLPAFVKKMKLQLALQDWDQTVETAQRLLL
QDSQNVEALRMQALYYVCREGDIEKASTKLENLGNTLDAMEPQNAQLFYNITLAFSRTCG
RSQLILQKIQTLLERAFSLNPQQSEFATELGYQMILQGRVKEALKWYKTAMTLDETSVSA
LVGFIQCQLIEGQLQDADQQLEFLNEIQQSIGKSAELIYLHAVLAMKKNKRQEEVINLLN
DVLDTHFSQLEGLPLGIQYFEKLNPDFLLEIVMEYLSFCPMQPASPGQPLCPLLRRCISV
LETVVRTVPGLLQTVFLIAKVKYLSGDIEAAFNNLQHCLEHNPSYADAHLLLAQVYLSQE
KVKLCSQSLELCLSYDFKVRDYPLYHLIKAQSQKKMGEIADAIKTLHMAMSLPGMKRIGA
STKSKDRKTEVDTSHRLSIFLELIDVHRLNGEQHEATKVLQDAIHEFSGTSEEVRVTIAN
ADLALAQGDIERALSILQNVTAEQPYFIEAREKMADIYLKHRKDKMLYITCFREIAERMA
NPRSFLLLGDAYMNILEPEEAIVAYEQALNQNPKDGTLASKMGKALIKTHNYSMAITYYE
AALKTGQKNYLCYDLAELLLKLKWYDKAEKVLQHALAHEPVNELSALMEDGRCQVLLAKV
YSKMEKLGDAITALQQARELQARVLKRVQMEQPDAVPAQKHLAAEICAEIAKHSVAQRDY
EKAIKFYREALVHCETDNKIMLELARLYLAQDDPDSCLRQCALLLQSDQDNEAATMMMAD
L
MFRKQDYEQAVFHLQQLLERKPDNYMTLSRLIDLLRRCGKLEDVPRFFSMAEKRNSRAK
LEPGFQYCKGLYLWYTGEPNDALRHFNKARKDRDWGQNALYNMIEICLNPDNETVGGEVF
ENLDGDLGNSTEKQESVQLAVRTAEKLLKELKPQTVQGHVQLRIMENYCLMATKQKSNVE
QALNTFTEIAASEKEHIPALLGMATAYMILKQTPRARNQLKRIAKMNWNAIDAEEFEKSW
LLLADIYIQSAKYDMAEDLLKRCLRHNRSCCKAYEYMGYIMEKEQAYTDAALNYEMAWKY
SNRTNPAVGYKLAFNYLKAKRYVDSIDICHQVLEAHPTYPKIRKDILDKARASLRP
Sequence length 1316
Interactions View interactions
Pathways Pathway information has different metabolic/signaling pathways associated with genes.
  Reactome
    Hedgehog 'off' state
Intraflagellar transport
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Associated diseases Disease associations categorized as Causal (pathogenic variants), Unknown (uncertain genetic evidence), or Text Mining (literature-based associations)
Causal Diseases caused by PATHOGENIC or LIKELY PATHOGENIC variants from ClinVar only
Disease merge term Disease name dbSNP ID References
Asphyxiating Thoracic Dystrophy Asphyxiating thoracic dystrophy 4 rs775836730, rs760214276, rs185089786, rs387907060, rs759086770 N/A
Finnish Congenital Nephrotic Syndrome finnish congenital nephrotic syndrome rs140511594 N/A
Jeune Thoracic Dystrophy jeune thoracic dystrophy rs1453462442 N/A
Nephronophthisis nephronophthisis 12, infantile nephronophthisis rs387907059, rs766132877, rs1559056633, rs140511594 N/A
Unknown Includes: (1) ClinVar NON-pathogenic variants (Uncertain, Benign, Conflicting, VUS), (2) GenCC associations, (3) GWAS associations, (4) CBGDA evidence-based associations. NOTE: Diseases with pathogenic evidence are excluded to avoid conflicts.
Disease merge term Disease name Evidence References Source
Cerebellar vermis agenesis familial aplasia of the vermis N/A N/A ClinVar
Connective Tissue Disease Connective tissue disorder N/A N/A ClinVar
Jeune Syndrome Jeune syndrome N/A N/A GenCC
Joubert Syndrome joubert syndrome 1 N/A N/A ClinVar
Associations from Text Mining Disease associations identified through Pubtator
Disease Name Relationship Type References
Agenesis of Cerebellar Vermis Associate 33547761
Allanson Pantzar McLeod syndrome Associate 33547761
Astigmatism Associate 30747064
Bardet Biedl Syndrome Associate 35112343, 35695966
Ciliary Motility Disorders Associate 33547761
Ciliopathies Associate 21068128, 32238723, 33547761, 33875766, 35695966
Glomerulosclerosis Focal Segmental Associate 32238723, 33547761, 34435324, 35289079
Heterotaxy Syndrome Associate 33547761
Hypertension Associate 35289079
Jeune syndrome Associate 31935347, 33547761