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Protein

Sushi domain-containing protein 4

Gene

SUSD4

Organism
Homo sapiens (Human)
Status
Reviewed-Annotation score: -Experimental evidence at transcript leveli

Functioni

Acts as complement inhibitor by disrupting the formation of the classical C3 convertase. Isoform 3 inhibits the classical complement pathway, while membrane-bound isoform 1 inhibits deposition of C3b via both the classical and alternative complement pathways.1 Publication

GO - Biological processi

Keywordsi

Biological processComplement pathway, Immunity, Innate immunity

Names & Taxonomyi

Protein namesi
Recommended name:
Sushi domain-containing protein 4
Gene namesi
Name:SUSD4
ORF Names:UNQ196/PRO222
OrganismiHomo sapiens (Human)
Taxonomic identifieri9606 [NCBI]
Taxonomic lineageiEukaryotaMetazoaChordataCraniataVertebrataEuteleostomiMammaliaEutheriaEuarchontogliresPrimatesHaplorrhiniCatarrhiniHominidaeHomo
Proteomesi
  • UP000005640 Componenti: Chromosome 1

Organism-specific databases

EuPathDBiHostDB:ENSG00000143502.14
HGNCiHGNC:25470 SUSD4
MIMi615827 gene
neXtProtiNX_Q5VX71

Subcellular locationi

Extracellular region or secreted Cytosol Plasma membrane Cytoskeleton Lysosome Endosome Peroxisome ER Golgi apparatus Nucleus Mitochondrion Manual annotation Automatic computational assertionGraphics by Christian Stolte; Source: COMPARTMENTS

Topology

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Topological domaini42 – 319ExtracellularSequence analysisAdd BLAST278
Transmembranei320 – 340HelicalSequence analysisAdd BLAST21
Topological domaini341 – 490CytoplasmicSequence analysisAdd BLAST150

Keywords - Cellular componenti

Membrane, Secreted

Pathology & Biotechi

Organism-specific databases

DisGeNETi55061
OpenTargetsiENSG00000143502
PharmGKBiPA142670855

Polymorphism and mutation databases

BioMutaiSUSD4
DMDMi74747494

PTM / Processingi

Molecule processing

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Signal peptidei1 – 41Sequence analysisAdd BLAST41
ChainiPRO_000025197542 – 490Sushi domain-containing protein 4Add BLAST449

Amino acid modifications

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Disulfide bondi57 ↔ 99PROSITE-ProRule annotation
Disulfide bondi85 ↔ 117PROSITE-ProRule annotation
Glycosylationi104N-linked (GlcNAc...) asparagineSequence analysis1
Disulfide bondi122 ↔ 165PROSITE-ProRule annotation
Glycosylationi134N-linked (GlcNAc...) asparagineSequence analysis1
Disulfide bondi147 ↔ 177PROSITE-ProRule annotation
Disulfide bondi180 ↔ 224PROSITE-ProRule annotation
Glycosylationi192N-linked (GlcNAc...) asparagineSequence analysis1
Disulfide bondi210 ↔ 237PROSITE-ProRule annotation
Disulfide bondi243 ↔ 289PROSITE-ProRule annotation
Disulfide bondi274 ↔ 302PROSITE-ProRule annotation

Keywords - PTMi

Disulfide bond, Glycoprotein

Proteomic databases

PaxDbiQ5VX71
PeptideAtlasiQ5VX71
PRIDEiQ5VX71
ProteomicsDBi65576
65577 [Q5VX71-2]
65578 [Q5VX71-3]
65579 [Q5VX71-4]

PTM databases

iPTMnetiQ5VX71
PhosphoSitePlusiQ5VX71

Expressioni

Tissue specificityi

Isoform 3 is the predominant isoform in all tissues except cortex, cerebellum, kidney, and breast. Isoform 1 is found primarily in the esophagus and the brain.1 Publication

Gene expression databases

BgeeiENSG00000143502
CleanExiHS_SUSD4
ExpressionAtlasiQ5VX71 baseline and differential
GenevisibleiQ5VX71 HS

Organism-specific databases

HPAiHPA058296

Interactioni

Protein-protein interaction databases

BioGridi120379, 45 interactors
IntActiQ5VX71, 3 interactors
MINTiQ5VX71

Structurei

3D structure databases

ProteinModelPortaliQ5VX71
SMRiQ5VX71
ModBaseiSearch...
MobiDBiSearch...

Family & Domainsi

Domains and Repeats

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Domaini55 – 119Sushi 1PROSITE-ProRule annotationAdd BLAST65
Domaini120 – 179Sushi 2PROSITE-ProRule annotationAdd BLAST60
Domaini178 – 239Sushi 3PROSITE-ProRule annotationAdd BLAST62
Domaini241 – 304Sushi 4PROSITE-ProRule annotationAdd BLAST64

Keywords - Domaini

Repeat, Signal, Sushi, Transmembrane, Transmembrane helix

Phylogenomic databases

eggNOGiENOG410IEVB Eukaryota
ENOG410ZTUX LUCA
GeneTreeiENSGT00530000063768
HOGENOMiHOG000154450
HOVERGENiHBG057231
InParanoidiQ5VX71
OMAiCMKHLNG
OrthoDBiEOG091G0E24
PhylomeDBiQ5VX71
TreeFamiTF332459

Family and domain databases

CDDicd00033 CCP, 4 hits
InterProiView protein in InterPro
IPR035976 Sushi/SCR/CCP_sf
IPR000436 Sushi_SCR_CCP_dom
PfamiView protein in Pfam
PF00084 Sushi, 4 hits
SMARTiView protein in SMART
SM00032 CCP, 4 hits
SUPFAMiSSF57535 SSF57535, 4 hits
PROSITEiView protein in PROSITE
PS50923 SUSHI, 4 hits

Sequences (4)i

Sequence statusi: Complete.

Sequence processingi: The displayed sequence is further processed into a mature form.

This entry describes 4 isoformsi produced by alternative splicing. AlignAdd to basket

Isoform 1 (identifier: Q5VX71-1) [UniParc]FASTAAdd to basket
Also known as: SUSD4a1 Publication

This isoform has been chosen as the 'canonical' sequence. All positional information in this entry refers to it. This is also the sequence that appears in the downloadable versions of the entry.

« Hide

        10         20         30         40         50
MYHGMNPSNG DGFLEQQQQQ QQPQSPQRLL AVILWFQLAL CFGPAQLTGG
60 70 80 90 100
FDDLQVCADP GIPENGFRTP SGGVFFEGSV ARFHCQDGFK LKGATKRLCL
110 120 130 140 150
KHFNGTLGWI PSDNSICVQE DCRIPQIEDA EIHNKTYRHG EKLIITCHEG
160 170 180 190 200
FKIRYPDLHN MVSLCRDDGT WNNLPICQGC LRPLASSNGY VNISELQTSF
210 220 230 240 250
PVGTVISYRC FPGFKLDGSA YLECLQNLIW SSSPPRCLAL EVCPLPPMVS
260 270 280 290 300
HGDFVCHPRP CERYNHGTVV EFYCDPGYSL TSDYKYITCQ YGEWFPSYQV
310 320 330 340 350
YCIKSEQTWP STHETLLTTW KIVAFTATSV LLVLLLVILA RMFQTKFKAH
360 370 380 390 400
FPPRGPPRSS SSDPDFVVVD GVPVMLPSYD EAVSGGLSAL GPGYMASVGQ
410 420 430 440 450
GCPLPVDDQS PPAYPGSGDT DTGPGESETC DSVSGSSELL QSLYSPPRCQ
460 470 480 490
ESTHPASDNP DIIASTAEEV ASTSPGIDIA DEIPLMEEDP
Length:490
Mass (Da):53,778
Last modified:December 7, 2004 - v1
Checksum:i15392C2774BEFF22
GO
Isoform 2 (identifier: Q5VX71-2) [UniParc]FASTAAdd to basket

The sequence of this isoform differs from the canonical sequence as follows:
     241-241: E → EAQ
     478-490: DIADEIPLMEEDP → HHAHWVLFLRN

Note: No experimental confirmation available.
Show »
Length:490
Mass (Da):53,920
Checksum:i950254448E4267D1
GO
Isoform 3 (identifier: Q5VX71-3) [UniParc]FASTAAdd to basket
Also known as: SUSD4b1 Publication

The sequence of this isoform differs from the canonical sequence as follows:
     242-290: VCPLPPMVSH...TSDYKYITCQ → GGRPEHLFPV...SSTSTTTSLF
     291-490: Missing.

Note: No experimental confirmation available.
Show »
Length:290
Mass (Da):32,165
Checksum:i58181E7BA44EE4CD
GO
Isoform 4 (identifier: Q5VX71-4) [UniParc]FASTAAdd to basket

The sequence of this isoform differs from the canonical sequence as follows:
     186-236: SSNGYVNISE...NLIWSSSPPR → PQHTPAQGTR...APTLLRTTLT
     237-490: Missing.

Note: No experimental confirmation available.
Show »
Length:236
Mass (Da):26,094
Checksum:i9417D03CAEA973BA
GO

Alternative sequence

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Alternative sequenceiVSP_020838186 – 236SSNGY…SSPPR → PQHTPAQGTRTQAQGSQKPV TASQALLSCSKVCIHLPGAK RAPTLLRTTLT in isoform 4. 1 PublicationAdd BLAST51
Alternative sequenceiVSP_020839237 – 490Missing in isoform 4. 1 PublicationAdd BLAST254
Alternative sequenceiVSP_020840241E → EAQ in isoform 2. 1 Publication1
Alternative sequenceiVSP_020841242 – 290VCPLP…YITCQ → GGRPEHLFPVLYFPHIRLAA AVLYFCPVLKSSPTPAPTCS STSTTTSLF in isoform 3. 1 PublicationAdd BLAST49
Alternative sequenceiVSP_020842291 – 490Missing in isoform 3. 1 PublicationAdd BLAST200
Alternative sequenceiVSP_020843478 – 490DIADE…MEEDP → HHAHWVLFLRN in isoform 2. 1 PublicationAdd BLAST13

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
AY358495 mRNA Translation: AAQ88859.1
AK000914 mRNA Translation: BAA91421.1
AL359733 Genomic DNA No translation available.
AL359979 Genomic DNA No translation available.
CH471100 Genomic DNA Translation: EAW93260.1
CH471100 Genomic DNA Translation: EAW93261.1
BC004888 mRNA Translation: AAH04888.1
CCDSiCCDS31034.1 [Q5VX71-3]
CCDS41471.1 [Q5VX71-1]
RefSeqiNP_001032252.1, NM_001037175.2 [Q5VX71-3]
NP_060452.3, NM_017982.3 [Q5VX71-1]
XP_016857076.1, XM_017001587.1 [Q5VX71-1]
XP_016857077.1, XM_017001588.1 [Q5VX71-1]
UniGeneiHs.497841

Genome annotation databases

EnsembliENST00000343846; ENSP00000344219; ENSG00000143502 [Q5VX71-1]
ENST00000344029; ENSP00000339926; ENSG00000143502 [Q5VX71-3]
ENST00000366878; ENSP00000355843; ENSG00000143502 [Q5VX71-1]
GeneIDi55061
KEGGihsa:55061
UCSCiuc001hnx.3 human [Q5VX71-1]

Keywords - Coding sequence diversityi

Alternative splicing

Similar proteinsi

Entry informationi

Entry nameiSUSD4_HUMAN
AccessioniPrimary (citable) accession number: Q5VX71
Secondary accession number(s): D3DTB9
, Q6UX62, Q9BSR0, Q9NWG0
Entry historyiIntegrated into UniProtKB/Swiss-Prot: October 3, 2006
Last sequence update: December 7, 2004
Last modified: June 20, 2018
This is version 111 of the entry and version 1 of the sequence. See complete history.
Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programChordata Protein Annotation Program
DisclaimerAny medical or genetic information present in this entry is provided for research, educational and informational purposes only. It is not in any way intended to be used as a substitute for professional medical advice, diagnosis, treatment or care.

Miscellaneousi

Keywords - Technical termi

Complete proteome, Reference proteome

Documents

  1. Human chromosome 1
    Human chromosome 1: entries, gene names and cross-references to MIM
  2. MIM cross-references
    Online Mendelian Inheritance in Man (MIM) cross-references in UniProtKB/Swiss-Prot

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