Summary: Stem cell factor
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Stem cell factor (SCF) is a homodimer involved in hematopoiesis. SCF binds to and activates the SCF receptor (SCFR), a receptor tyrosine kinase. The crystal structure of human SCF has been resolved and a potential receptor-binding site identified .
Zhang Z, Zhang R, Joachimiak A, Schlessinger J, Kong XP; , Proc Natl Acad Sci U S A 2000;97:7732-7737.: Crystal structure of human stem cell factor: Implication for stem cell factor receptor dimerization and activation. PUBMED:10884405 EPMC:10884405
External database links
This tab holds annotation information from the InterPro database.
InterPro entry IPR003452Stem cell factor (SCF) is a homodimer involved in hematopoiesis. SCF binds to and activates the SCF receptor (SCFR), a receptor tyrosine kinase. SCF stimulates the proliferation of mast cells and is able to augment the proliferation of both myeloid and lymphoid hematopoietic progenitors in bone marrow culture. It also mediates cell-cell adhesion and acts synergistically with other cytokines. SCF is a type I membrane protein, but is also found in a secretable, soluble form. The crystal structure of human SCF has been resolved and a potential receptor-binding site identified [PUBMED:10884405].
The mapping between Pfam and Gene Ontology is provided by InterPro. If you use this data please cite InterPro.
|Cellular component||membrane (GO:0016020)|
|Molecular function||stem cell factor receptor binding (GO:0005173)|
|Biological process||cell adhesion (GO:0007155)|
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Cytokines are regulatory peptides that can be produced by various cells for communicating and orchestrating the large multicellular system. Cytokines are key mediators of hematopoiesis, immunity, allergy, inflammation, tissue remodeling, angiogenesis, and embryonic development . This superfamily includes both the long and short chain helical cytokines.
The clan contains the following 29 members:CNTF CSF-1 EPO_TPO Flt3_lig GCSF GM_CSF Hormone_1 IFN-gamma IL10 IL11 IL12 IL13 IL15 IL2 IL22 IL23 IL28A IL3 IL34 IL4 IL5 IL6 IL7 Interferon Leptin LIF_OSM PRF SCF TSLP
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Curation and family details
|Seed source:||Pfam-B_2598 (release 5.4)|
|Author:||Mian N, Bateman A|
|Number in seed:||7|
|Number in full:||133|
|Average length of the domain:||228.10 aa|
|Average identity of full alignment:||51 %|
|Average coverage of the sequence by the domain:||93.30 %|
|HMM build commands:||
build method: hmmbuild -o /dev/null HMM SEED
search method: hmmsearch -Z 26740544 -E 1000 --cpu 4 HMM pfamseq
|Family (HMM) version:||14|
|Download:||download the raw HMM for this family|
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For those sequences which have a structure in the Protein DataBank, we use the mapping between UniProt, PDB and Pfam coordinate systems from the PDBe group, to allow us to map Pfam domains onto UniProt sequences and three-dimensional protein structures. The table below shows the structures on which the SCF domain has been found. There are 16 instances of this domain found in the PDB. Note that there may be multiple copies of the domain in a single PDB structure, since many structures contain multiple copies of the same protein seqence.
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