Gene Gene information from NCBI Gene database.
Entrez ID 79809
Gene name Tetratricopeptide repeat domain 21B
Gene symbol TTC21B
Synonyms (NCBI Gene)
ATD4CFAP60FAP60FLA17IFT139IFT139BJBTS11NPHP12Nbla10696SRTD4THM1
Chromosome 2
Chromosome location 2q24.3
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 associa
SNPs SNP information provided by dbSNP.
24
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.
212
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 (GO) annotations describing the biological processes, molecular functions, and cellular components associated with a gene.
35
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 identifiers for this gene in OMIM, HGNC, and Ensembl databases.
MIM HGNC e!Ensembl
612014 25660 ENSG00000123607
Protein Protein information from UniProt database.
UniProt ID Unique identifier for the protein in the UniProt database. Click to view detailed protein information.
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
Associated diseases Disease associations from ClinVar (causal & non-causal) and other databases (OMIM, Orphanet, GWAS, etc.).
57
Evidence Score: ★☆☆☆☆  Gene-disease association found in Text Mining only ★★☆☆☆  Found in Text Mining and Unknown/Other Associations ★★★☆☆  Reported in Unknown/Other Associations across ≥2 Sources ★★★★☆  ClinVar: Pathogenic/Likely Pathogenic (<5 Variants) ★★★★★  ClinVar: Pathogenic/Likely Pathogenic (≥5 Variants)
Causal Diseases associated with Pathogenic or Likely Pathogenic variants in ClinVar
Phenotype Name Clinical Significance dbSNP ID RCV Accession Evidence Score
Asphyxiating thoracic dystrophy 4 Likely pathogenic; Pathogenic rs779134983, rs2105363277, rs1685080096, rs779472675, rs2105291970, rs764514397, rs748514860, rs754911118, rs2105329247, rs2105344578, rs1183062277, rs776301212, rs771232897, rs906032090, rs2468244727
View all (14 more)
RCV002493924
RCV004796631
RCV001536086
RCV001535854
RCV001535855
View all (25 more)
★★★★★
ClinVar: Pathogenic / Likely Pathogenic (≥5 Variants)
Bardet-Biedl syndrome 2 Pathogenic rs748514860 RCV003339667
★★★★☆
ClinVar: Pathogenic / Likely Pathogenic (<5 Variants)
Familial cancer of breast Likely pathogenic; Pathogenic rs766132877 RCV005888657
★★★★☆
ClinVar: Pathogenic / Likely Pathogenic (<5 Variants)
Finnish congenital nephrotic syndrome Likely pathogenic; Pathogenic rs140511594 RCV000786982
★★★★☆
ClinVar: Pathogenic / Likely Pathogenic (<5 Variants)
Unknown / Other Associations ClinVar entries with uncertain/conflicting evidence, and associations from other databases (OMIM, Orphanet, GWAS, etc.) where the gene is not established as causal.
Phenotype Name Clinical Significance Source Evidence Score
Acute myeloid leukemia Likely benign; Benign ClinVar
★★☆☆☆
Found in Text Mining + Unknown/Other Associations
ASPHYXIATING THORACIC DYSPLASIA JEUNE Disgenet
★★☆☆☆
Found in Text Mining + Unknown/Other Associations
ATTENTION DEFICIT HYPERACTIVITY DISORDER GWAS catalog
★★☆☆☆
Found in Text Mining + Unknown/Other Associations
AUTISM SPECTRUM DISORDER GWAS catalog
★★☆☆☆
Found in Text Mining + Unknown/Other Associations
Associations from Text Mining Disease associations identified through text mining
Disease Name Disease (Merged) Source PMID Relationship Type Evidence Score
Asphyxiating Thoracic Dystrophy 1 Asphyxiating Thoracic Dystrophy CTD_human_DG 21258341
★☆☆☆☆
Found in Text Mining only
Astigmatism Astigmatism Pubtator 30747064 Associate
★☆☆☆☆
Found in Text Mining only
Ataxia Telangiectasia Ataxia Telangiectasia BEFREE 23339108
★☆☆☆☆
Found in Text Mining only
Brachydactyly Brachydactyly HPO_DG
★☆☆☆☆
Found in Text Mining only
Carcinoma of lung Lung carcinoma BEFREE 27847140
★☆☆☆☆
Found in Text Mining only
Chronic kidney disease stage 5 Kidney Disease BEFREE 28124483
★☆☆☆☆
Found in Text Mining only
Chronic kidney disease stage 5 Kidney Disease HPO_DG
★☆☆☆☆
Found in Text Mining only
Ciliary Motility Disorders Ciliary dyskinesia Pubtator 33547761 Associate
★☆☆☆☆
Found in Text Mining only
Ciliopathies Ciliopathy Pubtator 21068128, 32238723, 33547761, 33875766, 35695966 Associate
★☆☆☆☆
Found in Text Mining only
Ciliopathies Ciliopathies BEFREE 21258341, 26940125, 28124483
★☆☆☆☆
Found in Text Mining only