Dickkopf

Dickkopf-related protein 1
Identifiers
SymbolDKK1
NCBI gene22943
HGNC2891
OMIM605189
RefSeqNP_036374
UniProtO94907
Other data
LocusChr. 10 q21.1
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StructuresSwiss-model
DomainsInterPro
Dickkopf-related protein 2
Identifiers
SymbolDKK2
NCBI gene27123
HGNC2892
OMIM605415
RefSeqNP_055236
UniProtQ9UBU2
Other data
LocusChr. 4 q25
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StructuresSwiss-model
DomainsInterPro
Dickkopf-related protein 3
Identifiers
SymbolDKK3
NCBI gene27122
HGNC2893
OMIM605416
RefSeqNP_037385
UniProtQ9QUN9
Other data
LocusChr. 11 p15.3
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StructuresSwiss-model
DomainsInterPro
Dickkopf-related protein 4
Identifiers
SymbolDKK4
NCBI gene27121
HGNC2894
OMIM605417
RefSeqNP_055235
UniProtQ9UBT3
Other data
LocusChr. 8 p11.21
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StructuresSwiss-model
DomainsInterPro

Dickkopf (DKK) is a family of proteins consisting of five members as of 2020. That is, vertebrates usually contain five genes that are members of the family. The most well-studied is Dickkopf-related protein 1 (DKK1). DKK proteins inhibit the Wnt signaling pathway coreceptors LRP5 and LRP6. They bind with high affinity as ligands to KREMEN1 and KREMEN2, which are transmembrane proteins. DKK proteins have important roles in the development of vertebrates.