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1NP8

18-k C-terminally trunucated small subunit of calpain

Functional Information from GO Data
ChainGOidnamespacecontents
A0005509molecular_functioncalcium ion binding
B0005509molecular_functioncalcium ion binding
Functional Information from PDB Data
site_idAC1
Number of Residues6
DetailsBINDING SITE FOR RESIDUE CD A 700
ChainResidue
AASP68
AASP70
ATHR72
ALYS74
AGLU79
AHOH778

site_idAC2
Number of Residues5
DetailsBINDING SITE FOR RESIDUE CD A 701
ChainResidue
AHOH774
BGLU615
AASP100
AHOH769
AHOH771

site_idAC3
Number of Residues6
DetailsBINDING SITE FOR RESIDUE CD A 702
ChainResidue
AASP98
AASP100
ASER102
ATHR104
AGLU109
AHOH720

site_idAC4
Number of Residues6
DetailsBINDING SITE FOR RESIDUE CD A 703
ChainResidue
AALA25
AASP28
AGLU30
AGLU35
AHOH726
AHOH772

site_idAC5
Number of Residues6
DetailsBINDING SITE FOR RESIDUE CD A 704
ChainResidue
AASP53
AASP141
AASP143
AASN144
AHOH729
AHOH773

site_idAC6
Number of Residues5
DetailsBINDING SITE FOR RESIDUE CD A 705
ChainResidue
AASP27
AGLU115
AHOH768
AHOH776
BASP600

site_idAC7
Number of Residues6
DetailsBINDING SITE FOR RESIDUE CD B 707
ChainResidue
BHOH112
BASP568
BASP570
BTHR572
BLYS574
BGLU579

site_idAC8
Number of Residues6
DetailsBINDING SITE FOR RESIDUE CD B 708
ChainResidue
BHOH138
BASP598
BASP600
BSER602
BTHR604
BGLU609

site_idAC9
Number of Residues6
DetailsBINDING SITE FOR RESIDUE CD B 709
ChainResidue
BHOH142
BHOH186
BALA525
BASP528
BGLU530
BGLU535

site_idBC1
Number of Residues5
DetailsBINDING SITE FOR RESIDUE CD B 710
ChainResidue
BHOH119
BASP553
BASP641
BASP643
BASN644

site_idBC2
Number of Residues4
DetailsBINDING SITE FOR RESIDUE CD A 711
ChainResidue
AHIS47
AASP49
AHOH777
BLYS519

site_idBC3
Number of Residues4
DetailsBINDING SITE FOR RESIDUE CD B 712
ChainResidue
AHOH770
BHIS547
BASP549
BLYS595

site_idBC4
Number of Residues4
DetailsBINDING SITE FOR RESIDUE CD B 713
ChainResidue
BHOH148
BHOH198
BHIS624
BMET628

Functional Information from PROSITE/UniProt
site_idPS00018
Number of Residues13
DetailsEF_HAND_1 EF-hand calcium-binding domain. DSDTTGKLGfeEF
ChainResidueDetails
AASP68-PHE80
AASP98-LEU110

Functional Information from SwissProt/UniProt
site_idSWS_FT_FI1
Number of Residues68
DetailsDomain: {"description":"EF-hand 1; atypical","evidences":[{"evidenceCode":"ECO:0000305"}]}
ChainResidueDetails

site_idSWS_FT_FI2
Number of Residues66
DetailsDomain: {"description":"EF-hand 2","evidences":[{"source":"PROSITE-ProRule","id":"PRU00448","evidenceCode":"ECO:0000255"}]}
ChainResidueDetails

site_idSWS_FT_FI3
Number of Residues70
DetailsDomain: {"description":"EF-hand 3","evidences":[{"source":"PROSITE-ProRule","id":"PRU00448","evidenceCode":"ECO:0000255"}]}
ChainResidueDetails

site_idSWS_FT_FI4
Number of Residues56
DetailsDomain: {"description":"EF-hand 4","evidences":[{"evidenceCode":"ECO:0000305"}]}
ChainResidueDetails

site_idSWS_FT_FI5
Number of Residues12
DetailsBinding site: {"evidences":[{"source":"PubMed","id":"19020622","evidenceCode":"ECO:0000269"},{"source":"PubMed","id":"19020623","evidenceCode":"ECO:0000269"},{"source":"PubMed","id":"9228945","evidenceCode":"ECO:0000269"},{"source":"PDB","id":"1DVI","evidenceCode":"ECO:0007744"},{"source":"PDB","id":"3BOW","evidenceCode":"ECO:0007744"},{"source":"PDB","id":"3DF0","evidenceCode":"ECO:0007744"}]}
ChainResidueDetails

site_idSWS_FT_FI6
Number of Residues20
DetailsBinding site: {"evidences":[{"source":"PROSITE-ProRule","id":"PRU00448","evidenceCode":"ECO:0000255"},{"source":"PubMed","id":"19020622","evidenceCode":"ECO:0000269"},{"source":"PubMed","id":"19020623","evidenceCode":"ECO:0000269"},{"source":"PubMed","id":"9228945","evidenceCode":"ECO:0000269"},{"source":"PDB","id":"1DVI","evidenceCode":"ECO:0007744"},{"source":"PDB","id":"3BOW","evidenceCode":"ECO:0007744"},{"source":"PDB","id":"3DF0","evidenceCode":"ECO:0007744"}]}
ChainResidueDetails

site_idSWS_FT_FI7
Number of Residues2
DetailsModified residue: {"description":"N6-acetyllysine","evidences":[{"source":"UniProtKB","id":"P04632","evidenceCode":"ECO:0000250"}]}
ChainResidueDetails

242842

PDB entries from 2025-10-08

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