Follistatin like 4

mammalian protein found in Homo sapiens

Protein protein Q21107469

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Summary

Follistatin like 4 is a protein^[1].

Key Facts

Part of: EF-hand domain pair^[2], Immunoglobulin-like fold^[3], Kazal domain superfamily^[4], Immunoglobulin-like domain superfamily^[5], WD40/YVTN repeat-like-containing domain superfamily^[6], EF-hand domain, protein family^[7], immunoglobulin subtype, protein family^[8], Kazal domain, protein family^[9], Immunoglobulin subtype 2, protein family^[10], immunoglobulin-like domain, protein family^[11], EF-Hand 1, calcium-binding site, protein family^[12]
Has part(s): immunoglobulin subtype 2^[13], immunoglobulin-like domain^[14], Kazal domain^[15], EF-hand domain^[16], EF-hand 1, calcium-binding site^[17], immunoglobulin subtype^[18]

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Quick Facts

Instance of protein

Part of EF-hand domain pair, Immunoglobulin-like fold, Kazal domain superfamily, Immunoglobulin-like domain superfamily, WD40/YVTN repeat-like-containing domain superfamily, EF-hand domain, protein family, immunoglobulin subtype, protein family, Kazal domain, protein family, Immunoglobulin subtype 2, protein family, immunoglobulin-like domain, protein family, EF-Hand 1, calcium-binding site, protein family

Properties

Biological process negative regulation of collateral sprouting, negative regulation of dendritic spine development, negative regulation of brain-derived neurotrophic factor receptor signaling pathway, regulation of collateral sprouting

Cell component extracellular region, secretory granule

Encoded by FSTL4

Found in taxon Homo sapiens

Has part(s) immunoglobulin subtype 2, immunoglobulin-like domain, Kazal domain, EF-hand domain, EF-hand 1, calcium-binding site, immunoglobulin subtype

Imported from wholeness_audit_2026-05-02

Molecular function calcium ion binding, brain-derived neurotrophic factor binding, metal ion binding

Identifiers (3)

Ensembl protein id ENSP00000265342, ENSP00000484273, ENSP00000427662

Refseq protein id NP_055897, XP_011541585, XP_011541586, XP_011541588, XP_011541589, XP_016864740

Uniprot protein id Q6MZW2

🏷️ Also known as

en Follistatin like 4 en follistatin-like protein 4 en follistatin-related protein 4 en FSTL4

References

Programmatic citations — every numbered marker resolves to a verifiable graph row below.

Direct Wikidata claims

[2] ↑ Follistatin like 4 — part of (P361): EF-hand domain pair. InterPro Release 71.0. ebi.ac.uk. Provenance: wikidata.org.
[3] ↑ Follistatin like 4 — part of (P361): Immunoglobulin-like fold. InterPro Release 71.0. ebi.ac.uk. Provenance: wikidata.org.
[4] ↑ Follistatin like 4 — part of (P361): Kazal domain superfamily. InterPro Release 71.0. ebi.ac.uk. Provenance: wikidata.org.
[5] ↑ Follistatin like 4 — part of (P361): Immunoglobulin-like domain superfamily. InterPro Release 71.0. ebi.ac.uk. Provenance: wikidata.org.
[6] ↑ Follistatin like 4 — part of (P361): WD40/YVTN repeat-like-containing domain superfamily. InterPro Release 71.0. ebi.ac.uk. Provenance: wikidata.org.
[7] ↑ Follistatin like 4 — part of (P361): EF-hand domain, protein family. wikidata.org.
[8] ↑ Follistatin like 4 — part of (P361): immunoglobulin subtype, protein family. wikidata.org.
[9] ↑ Follistatin like 4 — part of (P361): Kazal domain, protein family. wikidata.org.
[10] ↑ Follistatin like 4 — part of (P361): Immunoglobulin subtype 2, protein family. wikidata.org.
[11] ↑ Follistatin like 4 — part of (P361): immunoglobulin-like domain, protein family. wikidata.org.
[12] ↑ Follistatin like 4 — part of (P361): EF-Hand 1, calcium-binding site, protein family. wikidata.org.
[13] ↑ Follistatin like 4 — has part(s) (P527): immunoglobulin subtype 2. InterPro Release 71.0. ebi.ac.uk. Provenance: wikidata.org.
[14] ↑ Follistatin like 4 — has part(s) (P527): immunoglobulin-like domain. InterPro Release 71.0. ebi.ac.uk. Provenance: wikidata.org.
[15] ↑ Follistatin like 4 — has part(s) (P527): Kazal domain. InterPro Release 71.0. ebi.ac.uk. Provenance: wikidata.org.
[16] ↑ Follistatin like 4 — has part(s) (P527): EF-hand domain. InterPro Release 71.0. ebi.ac.uk. Provenance: wikidata.org.
[17] ↑ Follistatin like 4 — has part(s) (P527): EF-hand 1, calcium-binding site. InterPro Release 71.0. ebi.ac.uk. Provenance: wikidata.org.
[18] ↑ Follistatin like 4 — has part(s) (P527): immunoglobulin subtype. InterPro Release 71.0. ebi.ac.uk. Provenance: wikidata.org.

Class ancestry

[1] ↑ Follistatin like 4 is an instance of protein (Q8054) [P31, primary]. Wikidata. wikidata.org.

📑 Cite this page

Use these citations when quoting this entity in research, articles, AI prompts, or wherever provenance matters. We aggregate Wikidata + Wikipedia + authoritative open-data sources; the stitched, scored, cross-referenced view is what 4ort.xyz contributes.

APA

4ort.xyz Knowledge Graph. (2026). Follistatin like 4. Retrieved May 3, 2026, from https://4ort.xyz/entity/follistatin-like-4-q21107469

MLA

“Follistatin like 4.” 4ort.xyz Knowledge Graph, 4ort.xyz, 3 May. 2026, https://4ort.xyz/entity/follistatin-like-4-q21107469.

BibTeX

@misc{4ortxyz_follistatin-like-4-q21107469_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{Follistatin like 4}}, year = {2026}, url = {https://4ort.xyz/entity/follistatin-like-4-q21107469}, note = {Accessed: 2026-05-03}}

LLM prompt

According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): Follistatin like 4 — https://4ort.xyz/entity/follistatin-like-4-q21107469 (retrieved 2026-05-03)

Canonical URL: https://4ort.xyz/entity/follistatin-like-4-q21107469 · Last refreshed: May 3, 2026