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3CXL

Crystal structure of human chimerin 1 (CHN1)

Functional Information from GO Data
ChainGOidnamespacecontents
A0005096molecular_functionGTPase activator activity
A0005515molecular_functionprotein binding
A0005829cellular_componentcytosol
A0007165biological_processsignal transduction
A0007399biological_processnervous system development
A0008045biological_processmotor neuron axon guidance
A0008270molecular_functionzinc ion binding
A0043547biological_processpositive regulation of GTPase activity
A0046872molecular_functionmetal ion binding
A0046875molecular_functionephrin receptor binding
A0048013biological_processephrin receptor signaling pathway
A0050770biological_processregulation of axonogenesis
A0051056biological_processregulation of small GTPase mediated signal transduction
Functional Information from PDB Data
site_idAC1
Number of Residues4
DetailsBINDING SITE FOR RESIDUE ZN A 500
ChainResidue
AHIS206
ACYS236
ACYS239
ACYS255

site_idAC2
Number of Residues4
DetailsBINDING SITE FOR RESIDUE ZN A 501
ChainResidue
ACYS219
ACYS222
AHIS244
ACYS247

site_idAC3
Number of Residues2
DetailsBINDING SITE FOR RESIDUE UNX A 503
ChainResidue
ALYS108
AGLU107

Functional Information from PROSITE/UniProt
site_idPS00479
Number of Residues50
DetailsZF_DAG_PE_1 Zinc finger phorbol-ester/DAG-type signature. HnFkvhtfrgphw.CeyCanfMwgliaqgvk.CadCglnvHkqCskmvpnd..C
ChainResidueDetails
AHIS206-CYS255

Functional Information from SwissProt/UniProt
site_idSWS_FT_FI1
Number of Residues86
DetailsDomain: {"description":"SH2","evidences":[{"source":"PROSITE-ProRule","id":"PRU00191","evidenceCode":"ECO:0000255"}]}
ChainResidueDetails

site_idSWS_FT_FI2
Number of Residues191
DetailsDomain: {"description":"Rho-GAP","evidences":[{"source":"PROSITE-ProRule","id":"PRU00172","evidenceCode":"ECO:0000255"}]}
ChainResidueDetails

site_idSWS_FT_FI3
Number of Residues50
DetailsZinc finger: {"description":"Phorbol-ester/DAG-type","evidences":[{"source":"PROSITE-ProRule","id":"PRU00226","evidenceCode":"ECO:0000255"}]}
ChainResidueDetails

site_idSWS_FT_FI4
Number of Residues1
DetailsSite: {"description":"Arginine finger; crucial for GTP hydrolysis by stabilizing the transition state","evidences":[{"source":"PROSITE-ProRule","id":"PRU00172","evidenceCode":"ECO:0000255"}]}
ChainResidueDetails

site_idSWS_FT_FI5
Number of Residues1
DetailsModified residue: {"description":"Phosphothreonine","evidences":[{"source":"UniProtKB","id":"P30337","evidenceCode":"ECO:0000250"}]}
ChainResidueDetails

245663

PDB entries from 2025-12-03

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