Article · Wikipedia archive · Last revised Jul 3, 2026

SFI1

Sfi1 homolog, spindle assembly associated (yeast) is a protein that in humans is encoded by the SFI1 gene. It localizes to the centriole, and its S. pombe ortholog has been shown to be involved in spindle pole body duplication. SFI1 forms a complex with centrin 2.

Last revised
Jul 3, 2026
Read time
≈ 3 min
Length
716 w
Citations
11
Source
SFI1
Available structures
PDBOrtholog search: PDBe RCSB
Identifiers
AliasesSFI1, PISD, PPP1R139, hSfi1p, SFI1 centrin binding protein
External IDsOMIM: 612765; MGI: 1926137; HomoloGene: 12707; GeneCards: SFI1; OMA:SFI1 - orthologs
Orthologs
SpeciesHumanMouse
Entrez
Ensembl
UniProt
RefSeq (mRNA)

NM_001007467
NM_001258325
NM_001258326
NM_001258327
NM_014775

NM_030207
NM_001363222
NM_001363223
NM_001363224

RefSeq (protein)

NP_001007468
NP_001245254
NP_001245255
NP_001245256
NP_055590

NP_084483
NP_001350151
NP_001350152
NP_001350153

Location (UCSC)Chr 22: 31.49 – 31.62 MbChr 11: 3.08 – 3.14 Mb
PubMed search34
Wikidata
View/Edit HumanView/Edit Mouse

Sfi1 homolog, spindle assembly associated (yeast) is a protein that in humans is encoded by the SFI1 gene.5 It localizes to the centriole, and its S. pombe ortholog has been shown to be involved in spindle pole body duplication.6 SFI1 forms a complex with centrin 2.7

References

References

  1. GRCh38: Ensembl release 89: ENSG00000198089Ensembl, May 2017
  2. GRCm38: Ensembl release 89: ENSMUSG00000023764Ensembl, May 2017
  3. "Human PubMed Reference:". National Center for Biotechnology Information, U.S. National Library of Medicine.
  4. "Mouse PubMed Reference:". National Center for Biotechnology Information, U.S. National Library of Medicine.
  5. "Entrez Gene: Sfi1 homolog, spindle assembly associated (yeast)". Retrieved 2014-06-25.
  6. Elserafy M, Šarić M, Neuner A, Lin TC, Zhang W, Seybold C, Sivashanmugam L, Schiebel E (July 2014). "Molecular mechanisms that restrict yeast centrosome duplication to one event per cell cycle". Current Biology. 24 (13): 1456–66. doi:10.1016/j.cub.2014.05.032. PMID 24954044.
  7. Martinez-Sanz J, Kateb F, Assairi L, Blouquit Y, Bodenhausen G, Abergel D, Mouawad L, Craescu CT (January 2010). "Structure, dynamics and thermodynamics of the human centrin 2/hSfi1 complex". Journal of Molecular Biology. 395 (1): 191–204. doi:10.1016/j.jmb.2009.10.041. PMID 19857500.
Further reading

Further reading

External links
  • Overview of all the structural information available in the PDB for UniProt: A8K8P3 (Protein SFI1 homolog) at the PDBe-KB.