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3LH4

Crystal Structure of Sialostatin L2

Functional Information from GO Data
ChainGOidnamespacecontents
A0004869molecular_functioncysteine-type endopeptidase inhibitor activity
A0005576cellular_componentextracellular region
A0005615cellular_componentextracellular space
A0005737cellular_componentcytoplasm
A0030414molecular_functionpeptidase inhibitor activity
A0031982cellular_componentvesicle
Functional Information from PDB Data
site_idAC1
Number of Residues4
DetailsBINDING SITE FOR RESIDUE SO4 A 115
ChainResidue
AGLY6
AARG60
AHOH151
AHOH206

site_idAC2
Number of Residues10
DetailsBINDING SITE FOR RESIDUE GOL A 116
ChainResidue
ALEU100
AGLN101
AHOH123
AHOH146
AHOH221
AGLU10
AASN13
ALEU47
ALYS48
AASN99

Functional Information from PROSITE/UniProt
site_idPS00287
Number of Residues14
DetailsCYSTATIN Cysteine proteases inhibitors signature. TQTVAGTNYrLTLK
ChainResidueDetails
ATHR51-LYS64

Functional Information from SwissProt/UniProt
site_idSWS_FT_FI1
Number of Residues89
DetailsDomain: {"description":"Cystatin","evidences":[{"evidenceCode":"ECO:0000255"}]}
ChainResidueDetails

site_idSWS_FT_FI2
Number of Residues44
DetailsRegion: {"description":"Required for interaction with mouse ANXA2","evidences":[{"source":"PubMed","id":"27045038","evidenceCode":"ECO:0000269"}]}
ChainResidueDetails

site_idSWS_FT_FI3
Number of Residues1
DetailsSite: {"description":"Reactive site","evidences":[{"source":"UniProtKB","id":"P01040","evidenceCode":"ECO:0000250"}]}
ChainResidueDetails

247536

PDB entries from 2026-01-14

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