P48740 (MASP1_HUMAN) Homo sapiens (Human)

Mannan-binding lectin serine protease 1 UniProtKBInterProInteractive Modelling

699 aa; Sequence (Fasta) ; (Isoform 2; Isoform 3; Isoform 4; )

Molecule Processing
Mannan-binding lectin serine protease 1 heavy chain
Mannan-binding lectin serine protease 1 light chain

Sequence Features

 490Charge relay system
 552Charge relay system
 646Charge relay system
 68Calcium 1
 76Calcium 1
 121Calcium 1
 123Calcium 1; via carbonyl oxygen
 139Calcium 2
 140Calcium 2; via carbonyl oxygen
 142Calcium 2
 159Calcium 2
 160Calcium 2; via carbonyl oxygen
 163Calcium 2; via carbonyl oxygen
 235Calcium 3
 245Calcium 3
 282Calcium 3
 284Calcium 3; via carbonyl oxygen
 21T -> I (in dbSNP:rs1062049) VAR_051831 dbSNP
 568V -> A (in dbSNP:rs13322090) VAR_051832 dbSNP
 679G -> R (in dbSNP:rs3774266) VAR_051833 dbSNP
 448-449Cleavage; by autolysis
 73-91
 143-157
 153-166
 168-181
 185-212
 242-260
 301-349
 329-362
 367-414
 397-432
 436-572Interchain (between heavy and light chains)
 475-491
 614-631
 642-672
 3-699Missing (in 3MC1) VAR_078814
 24-135CUB domain
IPR000859PF00431
 185-294CUB domain
IPR000859PF00431
 301-362Sushi/SCR/CCP domain
IPR000436PF00084
 367-432Sushi/SCR/CCP domain
IPR000436PF00084
 449-691Serine proteases, trypsin domain
IPR001254PF00089

Sequence Alignments

Experimental structures

DescriptionOligo-stateLigandsStructureRangeDownloadAssess
Catalytic fragment of masp-1 in complex with its specific inhibitor developed by directed evolution… Heteromer
4djz298-699
Crystal structure of the serine protease domain of MASP-3 in complex with ecotin Heteromer
P23827;
4iw4449-697
Crystal structure of the catalytic region of human MASP-1homo-2-mer GOL;3gov298-699
MBL-Ficolin Associated Protein-1, MAP-1 aka MAP44homo-2-mer NAG;NAG; 12×CA;4aqb22-366
CUB1-EGF-CUB2 domain of HUMAN MASP-1/3homo-2-mer NAG;CA;3dem26-297
Crystal structure of the zymogen catalytic region of Human MASP-1monomer GOL;4igd298-699
The X-ray crystal structure of Mannose-binding lectin-associated serine proteinase-3 reveals the st…monomer IMD;4kkd298-697

Homology models built on isoform sequence

Isoform #Oligo-stateLigandsQMEANTemplateRangeSeq id (%)ReportDownloadAssess
3homo-2-merCA;0.664aqb.1.B22-366
100.00
4monomerIMD;-1.034kkd.2.A185-604
99.54
2monomerIMD;-1.154kkd.2.A298-717
99.54
2monomerCA;0.044aqb.1.A22-366
96.39
3monomer-0.756f1c.1.D26-298
42.22
4monomerCA;-0.274aqb.1.A1-253
95.11
3monomer-1.696f1c.1.A22-298
44.77
2monomer-1.326f1c.1.A23-298
44.57
2monomer-0.766f1c.1.D26-298
42.22
4monomer-1.494lot.1.A72-321
40.00
3homo-2-mer-4.624lmf.5.A192-349
27.89
2monomer-4.284a5t.1.A337-717
28.80