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SASS6 SAS-6 centriolar assembly protein [ Homo sapiens (human) ]

Gene ID: 163786, updated on 3-Apr-2024

Summary

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Official Symbol
SASS6provided by HGNC
Official Full Name
SAS-6 centriolar assembly proteinprovided by HGNC
Primary source
HGNC:HGNC:25403
See related
Ensembl:ENSG00000156876 MIM:609321; AllianceGenome:HGNC:25403
Gene type
protein coding
RefSeq status
REVIEWED
Organism
Homo sapiens
Lineage
Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi; Mammalia; Eutheria; Euarchontoglires; Primates; Haplorrhini; Catarrhini; Hominidae; Homo
Also known as
SAS6; SAS-6; MCPH14
Summary
The protein encoded by this gene is a central component of centrioles and is necessary for their duplication and function. Centrioles adopt a cartwheel-shaped structure, with the encoded protein forming the hub and spokes inside a microtubule cylinder. Defects in this gene are a cause of autosomal recessive primary microcephaly. [provided by RefSeq, Oct 2016]
Expression
Ubiquitous expression in bone marrow (RPKM 6.8), testis (RPKM 6.7) and 25 other tissues See more
Orthologs
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Genomic context

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Location:
1p21.2
Exon count:
19
Annotation release Status Assembly Chr Location
RS_2023_10 current GRCh38.p14 (GCF_000001405.40) 1 NC_000001.11 (100083570..100132930, complement)
RS_2023_10 current T2T-CHM13v2.0 (GCF_009914755.1) 1 NC_060925.1 (99931689..99981045, complement)
105.20220307 previous assembly GRCh37.p13 (GCF_000001405.25) 1 NC_000001.10 (100549126..100598486, complement)

Chromosome 1 - NC_000001.11Genomic Context describing neighboring genes Neighboring gene uncharacterized LOC124904230 Neighboring gene solute carrier family 35 member A3 Neighboring gene H3K4me1 hESC enhancer GRCh37_chr1:100471652-100472152 Neighboring gene H3K4me1 hESC enhancer GRCh37_chr1:100472153-100472653 Neighboring gene RNA, U6 small nuclear 1318, pseudogene Neighboring gene NANOG-H3K27ac-H3K4me1 hESC enhancer GRCh37_chr1:100503123-100503725 Neighboring gene ATAC-STARR-seq lymphoblastoid active region 1366 Neighboring gene ATAC-STARR-seq lymphoblastoid silent region 1117 Neighboring gene ATAC-STARR-seq lymphoblastoid active region 1367 Neighboring gene ATAC-STARR-seq lymphoblastoid active region 1368 Neighboring gene H3K4me1 hESC enhancer GRCh37_chr1:100514024-100514739 Neighboring gene ATAC-STARR-seq lymphoblastoid active region 1370 Neighboring gene ATAC-STARR-seq lymphoblastoid active region 1369 Neighboring gene major facilitator superfamily domain containing 14A Neighboring gene ATAC-STARR-seq lymphoblastoid active region 1371 Neighboring gene ATAC-STARR-seq lymphoblastoid active region 1372 Neighboring gene ReSE screen-validated silencer GRCh37_chr1:100578889-100579078 Neighboring gene ATAC-STARR-seq lymphoblastoid active region 1373 Neighboring gene ReSE screen-validated silencer GRCh37_chr1:100598108-100598271 Neighboring gene H3K27ac hESC enhancer GRCh37_chr1:100598267-100598869 Neighboring gene Sharpr-MPRA regulatory region 13340 Neighboring gene tRNA methyltransferase 13 homolog Neighboring gene leucine rich repeat containing 39 Neighboring gene ATAC-STARR-seq lymphoblastoid active region 1376 Neighboring gene ribosomal protein L23a pseudogene 90 Neighboring gene dihydrolipoamide branched chain transacylase E2

Genomic regions, transcripts, and products

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Go to nucleotide: Graphics FASTA GenBank

Expression

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  • Project title: HPA RNA-seq normal tissues
  • Description: RNA-seq was performed of tissue samples from 95 human individuals representing 27 different tissues in order to determine tissue-specificity of all protein-coding genes
  • BioProject: PRJEB4337
  • Publication: PMID 24309898
  • Analysis date: Wed Apr 4 07:08:55 2018

Bibliography

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Related articles in PubMed

  1. Knockdown of SASS6 reduces growth of MDA‑MB‑231 triple‑negative breast cancer cells through arrest of the cell cycle at the G2/M phase. Du L, et al. Oncol Rep, 2021 Jun. PMID 33907854
  2. SASS6 promotes proliferation of esophageal squamous carcinoma cells by inhibiting the p53 signaling pathway. Xu Y, et al. Carcinogenesis, 2021 Feb 25. PMID 32671379
  3. SAS-6 Association with γ-Tubulin Ring Complex Is Required for Centriole Duplication in Human Cells. Gupta H, et al. Curr Biol, 2020 Jun 22. PMID 32442461
  4. Novel SASS6 compound heterozygous mutations in a Chinese family with primary autosomal recessive microcephaly. Zhang Y, et al. Clin Chim Acta, 2019 Apr. PMID 30639237
  5. SAS-6 engineering reveals interdependence between cartwheel and microtubules in determining centriole architecture. Hilbert M, et al. Nat Cell Biol, 2016 Apr. PMID 26999736

See all (59) citations in PubMed

GeneRIFs: Gene References Into Functions

What's a GeneRIF?
  1. Case Report: Prenatal Recurrent Microcephaly and Corpus Callosum Abnormalities in a Chinese Family with Novel Biallelic SASS6 Mutations.
    Title: Case Report: Prenatal Recurrent Microcephaly and Corpus Callosum Abnormalities in a Chinese Family with Novel Biallelic SASS6 Mutations.
  2. E2F4's cytoplasmic role in multiciliogenesis is mediated via an N-terminal domain that binds two components of the centriole replication machinery, Deup1 and SAS6.
    Title: E2F4's cytoplasmic role in multiciliogenesis is mediated via an N-terminal domain that binds two components of the centriole replication machinery, Deup1 and SAS6.
  3. Knockdown of SASS6 reduces growth of MDAMB231 triplenegative breast cancer cells through arrest of the cell cycle at the G2/M phase.
    Title: Knockdown of SASS6 reduces growth of MDA‑MB‑231 triple‑negative breast cancer cells through arrest of the cell cycle at the G2/M phase.
  4. SAS-6 Association with gamma-Tubulin Ring Complex Is Required for Centriole Duplication in Human Cells.
    Title: SAS-6 Association with γ-Tubulin Ring Complex Is Required for Centriole Duplication in Human Cells.
  5. SASS6 promotes proliferation of esophageal squamous carcinoma cells by inhibiting the p53 signaling pathway.
    Title: SASS6 promotes proliferation of esophageal squamous carcinoma cells by inhibiting the p53 signaling pathway.
  6. The ubiquitin ligase FBXW7 targets the centriolar assembly protein HsSAS-6 for degradation and thereby regulates centriole duplication.
    Title: The ubiquitin ligase FBXW7 targets the centriolar assembly protein HsSAS-6 for degradation and thereby regulates centriole duplication.
  7. CCDC84 Acetylation Oscillation Regulates Centrosome Duplication by Modulating HsSAS-6 Degradation.
    Title: CCDC84 Acetylation Oscillation Regulates Centrosome Duplication by Modulating HsSAS-6 Degradation.
  8. Expression regulation of PLK-4 and SAS-6 has a central role in centriole biogenesis. (Review)
    Title: Centriole assembly at a glance.
  9. the role of SASS6 in the pathogenesis of microcephaly
    Title: Novel SASS6 compound heterozygous mutations in a Chinese family with primary autosomal recessive microcephaly.
  10. Studies indicate that depletion of any one of the protein kinase polo-like kinase 4 (PLK4) and the two proteins STIL and SAS-6 blocks centriole duplication, and, conversely, overexpression causes centriole amplification.
    Title: The PLK4-STIL-SAS-6 module at the core of centriole duplication.
Submit: New GeneRIF Correction See all GeneRIFs (22)

Phenotypes

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Find tests for this gene in the NIH Genetic Testing Registry (GTR)

Review eQTL and phenotype association data in this region using PheGenI

Associated conditions

Description Tests
Microcephaly 14, primary, autosomal recessive
MedGen: C4225338 OMIM: 616402 GeneReviews: Not available
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Variation

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See variants in ClinVar

See studies and variants in dbVar

See Variation Viewer (GRCh37.p13)

See Variation Viewer (GRCh38)

Genotypes

Interactions

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Products Interactant Other Gene Complex Source Pubs Description

General gene information

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Markers

Homology

Clone Names

  • FLJ22097, MGC119440

Gene Ontology Provided by GOA

Function Evidence Code Pubs
enables protein binding IPI
Inferred from Physical Interaction
more info
 PubMed 
Process Evidence Code Pubs
involved_in centriole replication IBA
Inferred from Biological aspect of Ancestor
more info
  
involved_in centriole replication IMP
Inferred from Mutant Phenotype
more info
 PubMed 
involved_in centrosome duplication IMP
Inferred from Mutant Phenotype
more info
 PubMed 
involved_in positive regulation of G1/S transition of mitotic cell cycle IDA
Inferred from Direct Assay
more info
 PubMed 
involved_in positive regulation of centriole replication IDA
Inferred from Direct Assay
more info
 PubMed 
involved_in positive regulation of spindle assembly NAS
Non-traceable Author Statement
more info
 PubMed 
involved_in regulation of mitotic spindle organization NAS
Non-traceable Author Statement
more info
 PubMed 
Component Evidence Code Pubs
is_active_in centriole IBA
Inferred from Biological aspect of Ancestor
more info
  
located_in centriole IDA
Inferred from Direct Assay
more info
 PubMed 
is_active_in centrosome IBA
Inferred from Biological aspect of Ancestor
more info
  
located_in centrosome IDA
Inferred from Direct Assay
more info
 PubMed 
located_in centrosome NAS
Non-traceable Author Statement
more info
 PubMed 
located_in cytoplasm IDA
Inferred from Direct Assay
more info
 PubMed 
located_in deuterosome ISS
Inferred from Sequence or Structural Similarity
more info
  
part_of procentriole replication complex IPI
Inferred from Physical Interaction
more info
 PubMed 

General protein information

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Preferred Names
spindle assembly abnormal protein 6 homolog

NCBI Reference Sequences (RefSeq)

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RefSeqs maintained independently of Annotated Genomes

These reference sequences exist independently of genome builds. Explain

These reference sequences are curated independently of the genome annotation cycle, so their versions may not match the RefSeq versions in the current genome build. Identify version mismatches by comparing the version of the RefSeq in this section to the one reported in Genomic regions, transcripts, and products above.

Genomic

  1. NG_051914.1 RefSeqGene

    Range
    5166..54526
    Download
    GenBank, FASTA, Sequence Viewer (Graphics)

mRNA and Protein(s)

  1. NM_001304829.2 → NP_001291758.1  spindle assembly abnormal protein 6 homolog isoform 2

    Status: REVIEWED

    Description
    Transcript Variant: This variant (2) lacks an alternate exon at the 5' end compared to variant 1. This difference causes translation initiation at a downstream AUG and results in an isoform (2) with a shorter N-terminus compared to isoform 1.
    Source sequence(s)
    AY359522, BC101026, DC400869
    UniProtKB/TrEMBL
    Q495U0
    Conserved Domains (1) summary
    COG1196
    Location:4 → 299
    Smc; Chromosome segregation ATPase [Cell cycle control, cell division, chromosome partitioning]

  2. NM_194292.3 → NP_919268.1  spindle assembly abnormal protein 6 homolog isoform 1

    See identical proteins and their annotated locations for NP_919268.1

    Status: REVIEWED

    Description
    Transcript Variant: This variant (1) represents the longer transcript and encodes the longer isoform (1).
    Source sequence(s)
    AY359522
    Consensus CDS
    CCDS764.1
    UniProtKB/Swiss-Prot
    D3DT55, Q6UVJ0, Q8N3K0
    Related
    ENSP00000287482.5, ENST00000287482.6
    Conserved Domains (5) summary
    cd00187
    Location:360 → 480
    TOP4c; DNA Topoisomerase, subtype IIA; domain A'; bacterial DNA topoisomerase IV (C subunit, ParC), bacterial DNA gyrases (A subunit, GyrA),mammalian DNA toposiomerases II. DNA topoisomerases are essential enzymes that regulate the conformational changes in DNA ...
    pfam08172
    Location:445 → 545
    CASP_C; CASP C terminal
    pfam08537
    Location:249 → 357
    NBP1; Fungal Nap binding protein NBP1
    pfam15619
    Location:237 → 397
    Lebercilin; Ciliary protein causing Leber congenital amaurosis disease
    pfam16531
    Location:46 → 140
    SAS-6_N; Centriolar protein SAS N-terminal

RefSeqs of Annotated Genomes: GCF_000001405.40-RS_2023_10

The following sections contain reference sequences that belong to a specific genome build. Explain

Reference GRCh38.p14 Primary Assembly

Genomic

  1. NC_000001.11 Reference GRCh38.p14 Primary Assembly

    Range
    100083570..100132930 complement
    Download
    GenBank, FASTA, Sequence Viewer (Graphics)

mRNA and Protein(s)

  1. XM_047447889.1 → XP_047303845.1  spindle assembly abnormal protein 6 homolog isoform X2

  2. XM_017000486.2 → XP_016855975.1  spindle assembly abnormal protein 6 homolog isoform X1

    UniProtKB/TrEMBL
    B4DYM7
    Conserved Domains (5) summary
    cd00187
    Location:333 → 453
    TOP4c; DNA Topoisomerase, subtype IIA; domain A'; bacterial DNA topoisomerase IV (C subunit, ParC), bacterial DNA gyrases (A subunit, GyrA),mammalian DNA toposiomerases II. DNA topoisomerases are essential enzymes that regulate the conformational changes in DNA ...
    pfam08172
    Location:418 → 518
    CASP_C; CASP C terminal
    pfam08537
    Location:222 → 330
    NBP1; Fungal Nap binding protein NBP1
    pfam15619
    Location:210 → 370
    Lebercilin; Ciliary protein causing Leber congenital amaurosis disease
    pfam16531
    Location:19 → 113
    SAS-6_N; Centriolar protein SAS N-terminal

  3. XM_047447896.1 → XP_047303852.1  spindle assembly abnormal protein 6 homolog isoform X2

  4. XM_047447884.1 → XP_047303840.1  spindle assembly abnormal protein 6 homolog isoform X2

Alternate T2T-CHM13v2.0

Genomic

  1. NC_060925.1 Alternate T2T-CHM13v2.0

    Range
    99931689..99981045 complement
    Download
    GenBank, FASTA, Sequence Viewer (Graphics)

mRNA and Protein(s)

  1. XM_054334752.1 → XP_054190727.1  spindle assembly abnormal protein 6 homolog isoform X2

  2. XM_054334750.1 → XP_054190725.1  spindle assembly abnormal protein 6 homolog isoform X1

    UniProtKB/TrEMBL
    B4DYM7

  3. XM_054334753.1 → XP_054190728.1  spindle assembly abnormal protein 6 homolog isoform X2

  4. XM_054334751.1 → XP_054190726.1  spindle assembly abnormal protein 6 homolog isoform X2

Nucleotide Protein
Heading Accession and Version
Protein Accession Links
GenPept Link UniProtKB Link
Q6UVJ0.1 GenPept UniProtKB/Swiss-Prot:Q6UVJ0

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