ID A0A3Q7RZN2_VULVU Unreviewed; 713 AA.
AC A0A3Q7RZN2;
DT 10-APR-2019, integrated into UniProtKB/TrEMBL.
DT 10-APR-2019, sequence version 1.
DT 27-MAR-2024, entry version 24.
DE RecName: Full=complement subcomponent C1r {ECO:0000256|ARBA:ARBA00011907};
DE EC=3.4.21.41 {ECO:0000256|ARBA:ARBA00011907};
GN Name=C1R {ECO:0000313|RefSeq:XP_025851074.1};
OS Vulpes vulpes (Red fox).
OC Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi; Mammalia;
OC Eutheria; Laurasiatheria; Carnivora; Caniformia; Canidae; Vulpes.
OX NCBI_TaxID=9627 {ECO:0000313|Proteomes:UP000286640, ECO:0000313|RefSeq:XP_025851074.1};
RN [1]
RP IDENTIFICATION.
RG RefSeq;
RL Submitted (JAN-2019) to UniProtKB.
RN [2] {ECO:0000313|RefSeq:XP_025851074.1}
RP IDENTIFICATION.
RC STRAIN=TameXAggressive cross {ECO:0000313|RefSeq:XP_025851074.1};
RC TISSUE=Blood {ECO:0000313|RefSeq:XP_025851074.1};
RG RefSeq;
RL Submitted (NOV-2023) to UniProtKB.
CC -!- FUNCTION: C1r B chain is a serine protease that combines with C1q and
CC C1s to form C1, the first component of the classical pathway of the
CC complement system. {ECO:0000256|ARBA:ARBA00002304}.
CC -!- CATALYTIC ACTIVITY:
CC Reaction=Selective cleavage of Lys(or Arg)-|-Ile bond in complement
CC subcomponent C1s to form the active form of C1s (EC 3.4.21.42).;
CC EC=3.4.21.41; Evidence={ECO:0000256|ARBA:ARBA00001057};
CC -!- SUBUNIT: C1 is a calcium-dependent trimolecular complex of C1q, C1r and
CC C1s in the molar ration of 1:2:2. C1r is a dimer of identical chains,
CC each of which is activated by cleavage into two chains, A and B,
CC connected by disulfide bonds. {ECO:0000256|ARBA:ARBA00025829}.
CC -!- PTM: The iron and 2-oxoglutarate dependent 3-hydroxylation of aspartate
CC and asparagine is (R) stereospecific within EGF domains.
CC {ECO:0000256|PIRSR:PIRSR001155-3}.
CC -!- CAUTION: Lacks conserved residue(s) required for the propagation of
CC feature annotation. {ECO:0000256|PROSITE-ProRule:PRU00302}.
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DR RefSeq; XP_025851074.1; XM_025995289.1.
DR AlphaFoldDB; A0A3Q7RZN2; -.
DR STRING; 9627.ENSVVUP00000014670; -.
DR Ensembl; ENSVVUT00000019248; ENSVVUP00000014670; ENSVVUG00000010758.
DR KEGG; vvp:112917317; -.
DR OrthoDB; 5394076at2759; -.
DR Proteomes; UP000286640; Unplaced.
DR GO; GO:0005576; C:extracellular region; IEA:InterPro.
DR GO; GO:0016020; C:membrane; IEA:UniProtKB-KW.
DR GO; GO:0005509; F:calcium ion binding; IEA:InterPro.
DR GO; GO:0004252; F:serine-type endopeptidase activity; IEA:UniProtKB-EC.
DR GO; GO:0006956; P:complement activation; IEA:InterPro.
DR GO; GO:0045087; P:innate immune response; IEA:UniProtKB-KW.
DR GO; GO:0006508; P:proteolysis; IEA:UniProtKB-KW.
DR CDD; cd00033; CCP; 2.
DR CDD; cd00041; CUB; 2.
DR CDD; cd00054; EGF_CA; 1.
DR CDD; cd00190; Tryp_SPc; 1.
DR Gene3D; 2.10.70.10; Complement Module, domain 1; 2.
DR Gene3D; 2.10.25.10; Laminin; 1.
DR Gene3D; 2.60.120.290; Spermadhesin, CUB domain; 2.
DR Gene3D; 2.40.10.10; Trypsin-like serine proteases; 3.
DR InterPro; IPR000859; CUB_dom.
DR InterPro; IPR001881; EGF-like_Ca-bd_dom.
DR InterPro; IPR000742; EGF-like_dom.
DR InterPro; IPR018097; EGF_Ca-bd_CS.
DR InterPro; IPR024175; Pept_S1A_C1r/C1S/mannan-bd.
DR InterPro; IPR009003; Peptidase_S1_PA.
DR InterPro; IPR043504; Peptidase_S1_PA_chymotrypsin.
DR InterPro; IPR001314; Peptidase_S1A.
DR InterPro; IPR035914; Sperma_CUB_dom_sf.
DR InterPro; IPR035976; Sushi/SCR/CCP_sf.
DR InterPro; IPR000436; Sushi_SCR_CCP_dom.
DR InterPro; IPR001254; Trypsin_dom.
DR InterPro; IPR033116; TRYPSIN_SER.
DR PANTHER; PTHR24255:SF25; COMPLEMENT C1R SUBCOMPONENT; 1.
DR PANTHER; PTHR24255; COMPLEMENT COMPONENT 1, S SUBCOMPONENT-RELATED; 1.
DR Pfam; PF00431; CUB; 2.
DR Pfam; PF14670; FXa_inhibition; 1.
DR Pfam; PF00084; Sushi; 2.
DR Pfam; PF00089; Trypsin; 1.
DR PIRSF; PIRSF001155; C1r_C1s_MASP; 1.
DR PRINTS; PR00722; CHYMOTRYPSIN.
DR SMART; SM00032; CCP; 2.
DR SMART; SM00042; CUB; 2.
DR SMART; SM00181; EGF; 1.
DR SMART; SM00179; EGF_CA; 1.
DR SMART; SM00020; Tryp_SPc; 1.
DR SUPFAM; SSF57535; Complement control module/SCR domain; 2.
DR SUPFAM; SSF57196; EGF/Laminin; 1.
DR SUPFAM; SSF49854; Spermadhesin, CUB domain; 2.
DR SUPFAM; SSF50494; Trypsin-like serine proteases; 1.
DR PROSITE; PS01180; CUB; 2.
DR PROSITE; PS01186; EGF_2; 1.
DR PROSITE; PS01187; EGF_CA; 1.
DR PROSITE; PS50923; SUSHI; 2.
DR PROSITE; PS50240; TRYPSIN_DOM; 1.
DR PROSITE; PS00135; TRYPSIN_SER; 1.
PE 4: Predicted;
KW Calcium {ECO:0000256|PIRSR:PIRSR001155-4};
KW Complement pathway {ECO:0000256|ARBA:ARBA00022875};
KW Disulfide bond {ECO:0000256|ARBA:ARBA00023157,
KW ECO:0000256|PIRSR:PIRSR001155-2};
KW EGF-like domain {ECO:0000256|ARBA:ARBA00022536};
KW Glycoprotein {ECO:0000256|ARBA:ARBA00023180};
KW Hydrolase {ECO:0000256|ARBA:ARBA00022801};
KW Hydroxylation {ECO:0000256|ARBA:ARBA00023278,
KW ECO:0000256|PIRSR:PIRSR001155-3}; Immunity {ECO:0000256|ARBA:ARBA00022859};
KW Innate immunity {ECO:0000256|ARBA:ARBA00022588};
KW Membrane {ECO:0000256|SAM:Phobius};
KW Metal-binding {ECO:0000256|PIRSR:PIRSR001155-4};
KW Phosphoprotein {ECO:0000256|PIRSR:PIRSR001155-3};
KW Protease {ECO:0000256|ARBA:ARBA00022670};
KW Reference proteome {ECO:0000313|Proteomes:UP000286640};
KW Repeat {ECO:0000256|ARBA:ARBA00022737};
KW Serine protease {ECO:0000256|ARBA:ARBA00022825};
KW Sushi {ECO:0000256|ARBA:ARBA00022659, ECO:0000256|PROSITE-
KW ProRule:PRU00302}; Transmembrane {ECO:0000256|SAM:Phobius};
KW Transmembrane helix {ECO:0000256|SAM:Phobius}.
FT TRANSMEM 12..30
FT /note="Helical"
FT /evidence="ECO:0000256|SAM:Phobius"
FT DOMAIN 23..149
FT /note="CUB"
FT /evidence="ECO:0000259|PROSITE:PS01180"
FT DOMAIN 201..313
FT /note="CUB"
FT /evidence="ECO:0000259|PROSITE:PS01180"
FT DOMAIN 315..381
FT /note="Sushi"
FT /evidence="ECO:0000259|PROSITE:PS50923"
FT DOMAIN 382..457
FT /note="Sushi"
FT /evidence="ECO:0000259|PROSITE:PS50923"
FT DOMAIN 472..710
FT /note="Peptidase S1"
FT /evidence="ECO:0000259|PROSITE:PS50240"
FT ACT_SITE 510
FT /note="Charge relay system"
FT /evidence="ECO:0000256|PIRSR:PIRSR001155-1"
FT ACT_SITE 565
FT /note="Charge relay system"
FT /evidence="ECO:0000256|PIRSR:PIRSR001155-1"
FT ACT_SITE 662
FT /note="Charge relay system"
FT /evidence="ECO:0000256|PIRSR:PIRSR001155-1"
FT BINDING 74
FT /ligand="Ca(2+)"
FT /ligand_id="ChEBI:CHEBI:29108"
FT /ligand_label="1"
FT /evidence="ECO:0000256|PIRSR:PIRSR001155-4"
FT BINDING 82
FT /ligand="Ca(2+)"
FT /ligand_id="ChEBI:CHEBI:29108"
FT /ligand_label="1"
FT /evidence="ECO:0000256|PIRSR:PIRSR001155-4"
FT BINDING 127
FT /ligand="Ca(2+)"
FT /ligand_id="ChEBI:CHEBI:29108"
FT /ligand_label="1"
FT /evidence="ECO:0000256|PIRSR:PIRSR001155-4"
FT BINDING 129
FT /ligand="Ca(2+)"
FT /ligand_id="ChEBI:CHEBI:29108"
FT /ligand_label="1"
FT /evidence="ECO:0000256|PIRSR:PIRSR001155-4"
FT BINDING 150
FT /ligand="Ca(2+)"
FT /ligand_id="ChEBI:CHEBI:29108"
FT /ligand_label="2"
FT /evidence="ECO:0000256|PIRSR:PIRSR001155-4"
FT BINDING 153
FT /ligand="Ca(2+)"
FT /ligand_id="ChEBI:CHEBI:29108"
FT /ligand_label="2"
FT /evidence="ECO:0000256|PIRSR:PIRSR001155-4"
FT BINDING 175
FT /ligand="Ca(2+)"
FT /ligand_id="ChEBI:CHEBI:29108"
FT /ligand_label="2"
FT /evidence="ECO:0000256|PIRSR:PIRSR001155-4"
FT BINDING 176
FT /ligand="Ca(2+)"
FT /ligand_id="ChEBI:CHEBI:29108"
FT /ligand_label="2"
FT /evidence="ECO:0000256|PIRSR:PIRSR001155-4"
FT BINDING 179
FT /ligand="Ca(2+)"
FT /ligand_id="ChEBI:CHEBI:29108"
FT /ligand_label="2"
FT /evidence="ECO:0000256|PIRSR:PIRSR001155-4"
FT BINDING 261
FT /ligand="Ca(2+)"
FT /ligand_id="ChEBI:CHEBI:29108"
FT /ligand_label="3"
FT /evidence="ECO:0000256|PIRSR:PIRSR001155-4"
FT BINDING 298
FT /ligand="Ca(2+)"
FT /ligand_id="ChEBI:CHEBI:29108"
FT /ligand_label="3"
FT /evidence="ECO:0000256|PIRSR:PIRSR001155-4"
FT BINDING 300
FT /ligand="Ca(2+)"
FT /ligand_id="ChEBI:CHEBI:29108"
FT /ligand_label="3"
FT /evidence="ECO:0000256|PIRSR:PIRSR001155-4"
FT MOD_RES 175
FT /note="(3R)-3-hydroxyasparagine"
FT /evidence="ECO:0000256|PIRSR:PIRSR001155-3"
FT MOD_RES 214
FT /note="Phosphoserine; by CK2"
FT /evidence="ECO:0000256|PIRSR:PIRSR001155-3"
FT DISULFID 79..97
FT /evidence="ECO:0000256|PIRSR:PIRSR001155-2"
FT DISULFID 154..173
FT /evidence="ECO:0000256|PIRSR:PIRSR001155-2"
FT DISULFID 169..182
FT /evidence="ECO:0000256|PIRSR:PIRSR001155-2"
FT DISULFID 184..197
FT /evidence="ECO:0000256|PIRSR:PIRSR001155-2"
FT DISULFID 201..228
FT /evidence="ECO:0000256|PIRSR:PIRSR001155-2,
FT ECO:0000256|PROSITE-ProRule:PRU00059"
FT DISULFID 258..276
FT /evidence="ECO:0000256|PIRSR:PIRSR001155-2"
FT DISULFID 317..366
FT /evidence="ECO:0000256|PIRSR:PIRSR001155-2"
FT DISULFID 346..379
FT /evidence="ECO:0000256|PIRSR:PIRSR001155-2"
FT DISULFID 384..437
FT /evidence="ECO:0000256|PIRSR:PIRSR001155-2"
FT DISULFID 414..455
FT /evidence="ECO:0000256|PIRSR:PIRSR001155-2"
FT DISULFID 459..585
FT /note="Interchain (between heavy and light chains)"
FT /evidence="ECO:0000256|PIRSR:PIRSR001155-2"
FT DISULFID 628..647
FT /evidence="ECO:0000256|PIRSR:PIRSR001155-2"
FT DISULFID 658..688
FT /evidence="ECO:0000256|PIRSR:PIRSR001155-2"
SQ SEQUENCE 713 AA; 81071 MW; 5F963FC0EE49B3A9 CRC64;
MAREENAERW LFYLLVPILF CNMGGSIPLS QKLFGEVTSP LYPKPYPNNL DKTTVITVPT
GFRVKLVFWQ FDLEPSEGCL YDYVKISADK KTLGRFCGQL GSPLGNPPEA REFVSQGNKM
QLTFHTDFSN EENGTIMFHK GFLAYYQAVD LDECASQLNS VEENLQPQCQ HLCHNYVGGY
FCTCRPGYEL QKDGHSCQAE CSNELFTEPS GYVSSLEYPQ PYPPDLRCNY SIRVERGLTL
HLKFLEPFEI DDHQQVHCPY DQLQIYANGR NIGEFCGKKR PTDFDTSSNA VDLLFFTDES
GDSRGWKLHY VTEVIKCPQP KTLDKFTIIQ DLQPQYQFRD YFIATCQQGY QLVEGNQVLL
SFTAVCQDDG TWHRAMPRCR IKDCGPPRSL TNGAFNYTTT KGVNTYQARI QYYCQEPYYK
MHTRGGISEI QRGAYTCTAQ GIWKNEWEGE KIPRCLPVCG KPVNPVEQKQ RIIGGQKAKL
GNFPWQAFTN IYGRGGGALL GDRWILTAAH TLYPKEHDAQ SNATVDVFLG HVSVEEITKL
ANHPVRRVSI HPDYRQDESH NFEGDIALLE LENSVTLGPN LLPICLPDNE TFYDRGLMGY
VSGFGIMEER LSYDLKFIRL PVAKREACES WLRKNKRKDV FSQNMFCAGD PSLKQDACQG
DSGGVFAVKD ENSDRWVATG IVSWGIGCSR GYGFYTKLLN YVDWIKKEME GEG
//
