| SNRNP200 |  H. sapiens |  U5 snRNP |  ASCC3L1, BRR2, FLJ11521, HELIC2, RP33 |  244.5 |  1925 |  
  | PRPF8 |  H. sapiens |  U5 snRNP |  HPRP8, PRP8, PRPC8, RP13 |  273.6 |  1601 |  
  | SF3B3 |  H. sapiens |  17S U2 snRNP |  KIAA0017, RSE1, SAP130, SF3b130, STAF130 |  135.6 |  950 |  
  | EFTUD2 |  H. sapiens |  U5 snRNP |  DKFZp686E24196, FLJ44695, KIAA0031, MFDM, Snrp116 |  109.4 |  788 |  
  | SF3B1 |  H. sapiens |  17S U2 snRNP |  Hsh155, MDS, PRP10, PRPF10, SAP155 |  145.8 |  740 |  
  | No Name Available |  H. sapiens |   |  — |  — |  451 |  
  | PRPF6 |  H. sapiens |  U5 snRNP |  ANT-1, ANT1, C20orf14, Prp6, TOM |  106.9 |  441 |  
  | SART1 |  H. sapiens |  tri-snRNP |  Ara1, HOMS1, MGC2038, SART1259, SNRNP110 |  90.3 |  395 |  
  | AQR |  H. sapiens |  PRP19 related |  DKFZp686B23123, IBP160, KIAA0560, fSAP164 |  171.3 |  307 |  
  | SF3B2 |  H. sapiens |  17S U2 snRNP |  Cus1, SAP145, SF3B145, SF3b1, SF3b150 |  100.2 |  299 |  
  | PRPF4 |  H. sapiens |  U4/U6 snRNP |  HPRP4, HPRP4P, PRP4, Prp4p |  58.4 |  272 |  
  | PRPF3 |  H. sapiens |  U4/U6 snRNP |  HPRP3, HPRP3P, PRP3, Prp3p, RP18 |  77.5 |  255 |  
  | SNRNP40 |  H. sapiens |  U5 snRNP |  40K, FLJ41108, HPRP8BP, MGC1910, PRP8BP |  39.3 |  237 |  
  | SMU1 |  H. sapiens |  Recruited at B complex |  BWD, DKFZp761L0916, FLJ10805, FLJ10870, FLJ11970 |  57.5 |  234 |  
  | SF3A1 |  H. sapiens |  17S U2 snRNP |  PRP21, PRPF21, SAP114, SF3A120 |  88.9 |  213 |  
  | NCBP1 |  H. sapiens |  pre-mRNA/mRNA binding proteins |  CBP80, MGC2087, NCBP, Sto1 |  91.8 |  209 |  
  | PRPF19 |  H. sapiens |  PRP19 complex |  NMP200, PRP19, PSO4, SNEV, UBOX4 |  55.2 |  196 |  
  | CDC5L |  H. sapiens |  PRP19 complex |  CDC5, CDC5-LIKE, CEF1, KIAA0432, PCDC5RP |  92.3 |  189 |  
  | SRRM2 |  H. sapiens |  SR related |  300-KD, CWF21, Cwc21, DKFZp667L0421, DKFZp686O15166 |  299.6 |  162 |  
  | DDX23 |  H. sapiens |  U5 snRNP |  MGC8416, PRPF28, U5-100K, U5-100KD, prp28 |  95.6 |  157 |  
  | PLRG1 |  H. sapiens |  PRP19 complex |  Cwc1, MGC110980, PRL1, PRP46, PRPF46 |  57.2 |  155 |  
  | IK |  H. sapiens |  Recruited at B complex |  CSA2, MGC59741, RED |  65.6 |  152 |  
  | XAB2 |  H. sapiens |  PRP19 related |  DKFZp762C1015, HCNP, HCRN, NTC90, SYF1 |  100.0 |  151 |  
  | DHX15 |  H. sapiens |  17S U2 snRNP associated |  DBP1, DDX15, HRH2, PRP43, PRPF43 |  90.9 |  142 |  
  | PRPF31 |  H. sapiens |  U4/U6 snRNP |  DKFZp566J153, NY-BR-99, PRP31, RP11 |  55.5 |  122 |  
  | SF3A3 |  H. sapiens |  17S U2 snRNP |  PRP9, PRPF9, SAP61, SF3a60 |  58.8 |  120 |  
  | YBX1 |  H. sapiens |  pre-mRNA/mRNA binding proteins |  BP-8, CSDA2, CSDB, DBPB, MDR-NF1 |  35.9 |  118 |  
  | CRNKL1 |  H. sapiens |  PRP19 related |  CLF, CRN, Clf1, HCRN, MSTP021 |  100.5 |  107 |  
  | TUBB |  H. sapiens |  common MS contaminants |  M40, MGC117247, MGC16435, OK/SW-cl.56, TUBB1 |  49.7 |  99 |  
  | SRRT |  H. sapiens |  pre-mRNA/mRNA binding proteins |  ARS2, ASR2, MGC126427, serrate |  100.7 |  94 |  
  | SNRPB |  H. sapiens |  Sm |  COD, SNRPB1, Sm-B/B', SmB/B', SmB/SmB' |  24.6 |  94 |  
  | CSDA |  H. sapiens |   |  CSDA1, DBPA, ZONAB |  40.1 |  90 |  
  | DHX9 |  H. sapiens |  misc. proteins found irregularly with spliceosomes |  DDX9, FLJ17406, LKP, NDH2, NDHII |  141.0 |  89 |  
  | TUBA1B |  H. sapiens |  common MS contaminants |  K-ALPHA-1 |  50.2 |  89 |  
  | PRPF4B |  H. sapiens |  Recruited at B complex |  KIAA0536, PR4H, PRP4, PRP4H, PRP4K |  117.0 |  86 |  
  | CDC40 |  H. sapiens |  Second step factors |  EHB3, FLJ10564, MGC102802, PRP17, PRPF17 |  65.5 |  85 |  
  | TUBB4B |  H. sapiens |  common MS contaminants |  Beta2, TUBB2, TUBB2C |  49.8 |  83 |  
  | PRPF38A |  H. sapiens |  Recruited at B complex |  FLJ14936, MGC3320, Prp38, RP5-965L7.1 |  37.5 |  83 |  
  | SNRPA1 |  H. sapiens |  17S U2 snRNP |  Lea1 |  28.4 |  82 |  
  | HNRNPA1 |  H. sapiens |  hnRNP |  HNRPA1, HNRPA1L3, MGC102835, hnRNP A1, hnRNP-A1 |  38.7 |  77 |  
  | SNRPD2 |  H. sapiens |  Sm |  SMD2, SNRPD1, Sm-D2 |  13.5 |  72 |  
  | GCFC1 |  H. sapiens |  pre-mRNA/mRNA binding proteins |  BM020, C21orf66, FLJ90561, FSAP105, GCFC |  104.8 |  71 |  
  | SNRPE |  H. sapiens |  Sm |  B-raf, SME, Sm-E |  10.8 |  70 |  
  | SNW1 |  H. sapiens |  PRP19 related |  Bx42, MGC119379, NCOA-62, PRPF45, Prp45 |  61.5 |  69 |  
  | PPIH |  H. sapiens |  U4/U6 snRNP |  CYP-20, CYPH, MGC5016, SnuCyp-20, USA-CYP |  19.2 |  68 |  
  | U2SURP |  H. sapiens |  17S U2 snRNP associated |  KIAA0332, MGC133197, SR140, fSAPa |  118.3 |  67 |  
  | USP39 |  H. sapiens |  tri-snRNP |  65K, CGI-21, FLJ33136, HSPC332, MGC75069 |  65.4 |  66 |  
  | SNRPD1 |  H. sapiens |  Sm |  HsT2456, SMD1, SNRPD, Sm-D1 |  13.3 |  62 |  
  | MFAP1 |  H. sapiens |  Recruited at B complex |  — |  52.0 |  62 |  
  | SNRPD3 |  H. sapiens |  Sm |  SMD3, Sm-D3 |  13.9 |  59 |  
  | KIN |  H. sapiens |  misc. proteins found irregularly with spliceosomes |  BTCD, KIN17 |  45.4 |  59 |  
  | BUD13 |  H. sapiens |  RES complex |  Cwc26, FLJ27090, MGC13125, fSAP71 |  70.5 |  56 |  
  | TFIP11 |  H. sapiens |  Recruited at B complex |  FLJ22086, NTR1, Spp382, TIP39, bK445C9.6 |  96.8 |  54 |  
  | DSP |  H. sapiens |  common MS contaminants |  DP, DPI, DPII |  331.8 |  49 |  
  | SF3B6 |  H. sapiens |  17S U2 snRNP |  SF3B14, CGI-110, HSPC175, Ht006, P14, SAP14 |  14.6 |  48 |  
  | SNRPB2 |  H. sapiens |  17S U2 snRNP |  MGC24807, MGC45309, Msl1 |  25.5 |  45 |  
  | WBP4 |  H. sapiens |  Recruited at B complex |  FBP21, MGC117310 |  42.5 |  45 |  
  | SF3B4 |  H. sapiens |  17S U2 snRNP |  AFD1, Hsh49, MGC10828, SAP49, SF3b49 |  44.4 |  43 |  
  | PPIE |  H. sapiens |  PRP19 related |  CYP-33, CYP33, MGC111222, MGC3736 |  33.4 |  42 |  
  | RBM22 |  H. sapiens |  PRP19 related |  Cwc2, FLJ10290, ZC3H16, fSAP47 |  46.9 |  41 |  
  | SF3A2 |  H. sapiens |  17S U2 snRNP |  PRP11, PRPF11, SAP62, SF3a66 |  49.3 |  40 |  
  | HNRNPC |  H. sapiens |  hnRNP |  C1, C2, HNRNP, HNRPC, MGC104306 |  33.7 |  40 |  
  | ILF2 |  H. sapiens |   |  MGC8391, NF45, PRO3063 |  43.1 |  38 |  
  | BCAS2 |  H. sapiens |  PRP19 complex |  DAM1, SPF27, Snt309 |  26.1 |  37 |  
  | SRRM1 |  H. sapiens |  SR related |  160-KD, MGC39488, POP101, SRM160 |  102.3 |  37 |  
  | U2AF2 |  H. sapiens |  17S U2 snRNP associated |  U2AF65 |  53.5 |  36 |  
  | ZC3H18 |  H. sapiens |  other rna binding domain containing |  FLJ22664, FLJ34530, FLJ36075, NHN1 |  106.4 |  36 |  
  | TCERG1 |  H. sapiens |  misc. proteins found irregularly with spliceosomes |  CA150, MGC133200, TAF2S, Urn1 |  123.9 |  32 |  
  | HNRNPR |  H. sapiens |  hnRNP |  FLJ25714, HNRPR, hnRNP R, hnRNP-R |  70.9 |  31 |  
  | TXNL4A |  H. sapiens |  U5 snRNP |  DIB1, DIM1, HsT161, TXNL4, U5-15kD |  16.8 |  31 |  
  | HNRNPA0 |  H. sapiens |  hnRNP |  HNRPA0 |  30.8 |  31 |  
  | HNRNPA2B1 |  H. sapiens |  hnRNP |  DKFZp779B0244, FLJ22720, HNRNPA2, HNRNPB1, HNRPA2 |  37.4 |  31 |  
  | JUP |  H. sapiens |  Occasionally detected in C complex |  ARVD12, CTNNG, DP3, DPIII, PDGB |  81.7 |  31 |  
  | HNRNPA3 |  H. sapiens |  hnRNP |  2610510D13Rik, D10S102, FBRNP, HNRPA3, MGC138232 |  39.6 |  30 |  
  | ISY1 |  H. sapiens |  PRP19 related |  FSAP33, KIAA1160 |  33.0 |  29 |  
  | SRSF1 |  H. sapiens |  SR protein |  ASF, FLJ53078, MGC5228, SF2, SF2p33 |  27.7 |  29 |  
  | CD2BP2 |  H. sapiens |  U5 snRNP |  FWP010, LIN1, PPP1R59, Snu40, U5-52K |  37.6 |  28 |  
  | BUD31 |  H. sapiens |  PRP19 related |  Cwc14, EDG-2, EDG2, G10, MGC111202 |  17.0 |  28 |  
  | IGF2BP3 |  H. sapiens |  pre-mRNA/mRNA binding proteins |  CT98, DKFZp686F1078, IMP-3, IMP3, KOC1 |  63.7 |  27 |  
  | RBM5 |  H. sapiens |  Recruited at A complex |  FLJ39876, G15, H37, LUCA15, RMB5 |  92.2 |  26 |  
  | LSM2 |  H. sapiens |  LSm |  C6orf28, G7B, YBL026W, snRNP |  10.8 |  25 |  
  | RBM39 |  H. sapiens |  pre-mRNA/mRNA binding proteins |  CAPER, CAPERalpha, DKFZp781C0423, FLJ44170, FSAP59 |  59.4 |  25 |  
  | ZCCHC8 |  H. sapiens |  other rna binding domain containing |  DKFZp434E2220 |  78.6 |  24 |  
  | PPIL1 |  H. sapiens |  PRP19 related |  CGI-124, CYPL1, MGC678, PPIase, hCyPX |  18.2 |  24 |  
  | LSM8 |  H. sapiens |  LSm |  , N(alpha)-acetyltransferase 38, NAA38, NatC auxiliary subunit, FLJ33242, LSM8 |  10.4 |  23 |  
  | LSM4 |  H. sapiens |  LSm |  GRP, YER112W |  15.3 |  22 |  
  | SF3B5 |  H. sapiens |  17S U2 snRNP |  MGC3133, SF3b10, Ysf3 |  10.1 |  21 |  
  | PHF5A |  H. sapiens |  17S U2 snRNP |  INI, MGC1346, Rds3, SAP14b, SF3b14b |  12.4 |  21 |  
  | DSG1 |  H. sapiens |   |  CDHF4, DG1, DSG, PPKS1, SPPK1 |  113.7 |  21 |  
  | SMNDC1 |  H. sapiens |  17S U2 snRNP associated |  SMNR, SPF30 |  26.7 |  21 |  
  | No Name Available |  H. sapiens |   |  — |  — |  20 |  
  | RBM42 |  H. sapiens |  other rna binding domain containing |  MGC10433 |  50.4 |  20 |  
  | RBM17 |  H. sapiens |  17S U2 snRNP associated |  DKFZp686F13131, MGC14439, SPF45 |  45.0 |  20 |  
  | PABPC1 |  H. sapiens |  pre-mRNA/mRNA binding proteins |  PAB1, PABP, PABP1, PABPC2, PABPL1 |  70.7 |  20 |  
  | CHERP |  H. sapiens |  17S U2 snRNP associated |  DAN16, SCAF6, SRA1 |  103.7 |  20 |  
  | SRSF7 |  H. sapiens |  SR protein |  9G8, AAG3, SFRS7 |  27.4 |  20 |  
  | RBMX |  H. sapiens |  hnRNP |  HNRPG, RBMXP1, RBMXRT, RNMX, hnRNP-G |  42.3 |  19 |  
  | U2AF1 |  H. sapiens |  17S U2 snRNP associated |  DKFZp313J1712, FP793, RN, RNU2AF1, U2AF35 |  27.9 |  18 |  
  | SON |  H. sapiens |   |  BASS1, C21orf50, DBP-5, FLJ21099, FLJ33914 |  263.8 |  18 |  
  | RSRC1 |  H. sapiens |   |  BM-011, MGC12197, SFRS21, SRrp53 |  38.7 |  18 |  
  | TRA2B |  H. sapiens |  SR protein |  DKFZp686F18120, Htra2-beta, SFRS10, SRFS10, TRA2-BETA |  33.7 |  17 |  
  | NCBP2 |  H. sapiens |  pre-mRNA/mRNA binding proteins |  CBC2, CBP20, NIP1, PIG55 |  18.0 |  16 |  
  | ANXA2 |  H. sapiens |   |  ANX2, ANX2L4, CAL1H, LIP2, LPC2 |  38.6 |  16 |  
  | RBMX2 |  H. sapiens |  RES complex |  CGI-79 |  37.3 |  16 |  
  | MSI2 |  H. sapiens |   |  FLJ36569, MGC3245, MSI2H |  35.2 |  16 |  
  | DDX39B |  H. sapiens |  other rna binding domain containing |  BAT1, D6S81E, UAP56 |  49.0 |  15 |  
  | PCBP1 |  H. sapiens |  hnRNP |  HNRPE1, HNRPX, hnRNP-E1, hnRNP-X |  37.5 |  14 |  
  | RBM10 |  H. sapiens |  Recruited at A complex |  DXS8237E, FLJ40796, GPATC9, GPATCH9, KIAA0122 |  103.5 |  14 |  
  | THRAP3 |  H. sapiens |  Recruited at A complex |  FLJ22082, MGC133082, MGC133083, TRAP150 |  108.7 |  14 |  
  | SKIV2L2 |  H. sapiens |  misc. proteins found irregularly with spliceosomes |  Dob1, KIAA0052, MGC142069, Mtr4, fSAP118 |  117.8 |  14 |  
  | SNRNP70 |  H. sapiens |  U1 snRNP |  RNPU1Z, RPU1, SNRP70, Snp1, U1-70K |  51.6 |  13 |  
  | HNRNPM |  H. sapiens |  hnRNP |  CEAR, DKFZp547H118, HNRNPM4, HNRPM, HNRPM4 |  77.5 |  13 |  
  | HNRNPH1 |  H. sapiens |  hnRNP |  DKFZp686A15170, HNRPH, HNRPH1, hnRNPH |  49.2 |  13 |  
  | IGF2BP1 |  H. sapiens |   |  CRD-BP, CRDBP, IMP-1, IMP1, VICKZ1 |  63.5 |  13 |  
  | SNRPA |  H. sapiens |  U1 snRNP |  Mud1, U1-A, U1A |  31.3 |  13 |  
  | SRSF9 |  H. sapiens |  SR protein |  SFRS9, SRp30c |  25.5 |  12 |  
  | SNRPF |  H. sapiens |  Sm |  SMF, Sm-F, snRNP-F |  9.7 |  12 |  
  | SNRPG |  H. sapiens |  Sm |  MGC117317, SMG, Sm-G |  8.5 |  12 |  
  | MATR3 |  H. sapiens |  Occasionally detected in C complex |  DKFZp686K0542, DKFZp686K23100, KIAA0723, MGC9105, MPD2 |  94.6 |  12 |  
  | SNRNP27 |  H. sapiens |  misc. proteins found irregularly with spliceosomes |  27K, RY1 |  18.9 |  12 |  
  | EEF1A1 |  H. sapiens |  translation-related |  CCS-3, CCS3, EE1A1, EEF-1, EEF1A |  50.1 |  12 |  
  | RBM4 |  H. sapiens |  other rna binding domain containing |  DKFZp547K0918, FLJ36727, LARK, MGC75138, RBM4A |  40.3 |  12 |  
  | SRSF5 |  H. sapiens |  SR protein |  HRS, SFRS5, SRP40 |  31.3 |  12 |  
  | PABPC4 |  H. sapiens |  pre-mRNA/mRNA binding proteins |  APP-1, APP1, FLJ43938, PABP4, iPABP |  70.8 |  12 |  
  | NHP2L1 |  H. sapiens |  U4/U6 snRNP |  15.5K, FA-1, FA1, NHPX, OTK27 |  14.2 |  12 |  
  | DDX5 |  H. sapiens |  pre-mRNA/mRNA binding proteins |  DKFZp434E109, DKFZp686J01190, G17P1, HLR1, HUMP68 |  69.1 |  12 |  
  | RBM7 |  H. sapiens |  pre-mRNA/mRNA binding proteins |  FLJ11153 |  30.5 |  11 |  
  | EXOSC9 |  H. sapiens |  exosome |  PM/Scl-75, PMSCL1, RRP45, Rrp45p, p5 |  48.9 |  11 |  
  | RPSA |  H. sapiens |   |  37LRP, 67LR, LAMBR, LAMR1, LBP |  32.9 |  10 |  
  | GNB2L1 |  H. sapiens |  Occasionally detected in C complex |  Gnb2-rs1, H12.3, HLC-7, PIG21, RACK1 |  35.1 |  10 |  
  | LSM6 |  H. sapiens |  LSm |  YDR378C |  9.1 |  10 |  
  | SRSF10 |  H. sapiens |  SR protein |  DKFZp686H0644, FLJ30749, FLJ43846, FUSIP1, FUSIP2 |  31.3 |  10 |  
  | SYNCRIP |  H. sapiens |  hnRNP |  FLJ31626, GRY-RBP, GRYRBP, HNRPQ1, NSAP1 |  69.6 |  10 |  
  | ZC3HAV1 |  H. sapiens |  other rna binding domain containing |  DKFZp686F2052, DKFZp686H1869, DKFZp686O19171, FLB6421, FLJ13288 |  101.4 |  10 |  
  | ALYREF |  H. sapiens |  EJC/mRNP |  ALY, ALY/REF, BEF, REF, THOC4 |  26.9 |  10 |  
  | ACIN1 |  H. sapiens |  EJC/mRNP |  ACINUS, ACN, DKFZp667N107, KIAA0670, fSAP152 |  151.9 |  10 |  
  | SRSF6 |  H. sapiens |  SR protein |  B52, FLJ08061, MGC5045, SFRS6, SRP55 |  39.6 |  9 |  
  | THOC2 |  H. sapiens |  TREX |  CXorf3, THO2, dJ506G2.1, hTREX120 |  182.8 |  9 |  
  | UBL5 |  H. sapiens |  misc. proteins found irregularly with spliceosomes |  FLJ46917, HUB1, MGC131795 |  8.5 |  8 |  
  | THOC7 |  H. sapiens |  TREX |  FLJ23445, NIF3L1BP1, fSAP24 |  23.7 |  8 |  
  | AHNAK |  H. sapiens |   |  AHNAKRS, MGC5395 |  16.1 |  8 |  
  | SRSF3 |  H. sapiens |  SR protein |  SFRS3, SRp20 |  19.3 |  8 |  
  | S100A8 |  H. sapiens |   |  60B8AG, CAGA, CFAG, CGLA, CP-10 |  10.8 |  7 |  
  | LSM7 |  H. sapiens |  LSm |  YNL147W |  11.6 |  7 |  
  | HSPB1 |  H. sapiens |  chaperonin/heat shock |  CMT2F, DKFZp586P1322, HMN2B, HS.76067, HSP27 |  22.8 |  6 |  
  | SAP18 |  H. sapiens |  EJC/mRNP |  2HOR0202, MGC27131, SAP18P |  17.6 |  6 |  
  | TOE1 |  H. sapiens |  Occasionally detected in C complex |  FLJ13949 |  56.5 |  6 |  
  | No Name Available |  H. sapiens |   |  — |  — |  6 |  
  | EXOSC7 |  H. sapiens |  exosome |  EAP1, FLJ26543, KIAA0116, RRP42, Rrp42p |  31.8 |  6 |  
  | HNRNPF |  H. sapiens |  hnRNP |  HNRPF, MGC110997, OK/SW-cl.23, mcs94-1 |  45.7 |  6 |  
  | EIF3E |  H. sapiens |  translation-related |  EIF3-P48, EIF3S6, INT6, eIF3-p46 |  52.2 |  6 |  
  | EXOSC5 |  H. sapiens |   |  RRP41B, RRP46, Rrp46p, hRrp46p, p12B |  25.2 |  6 |  
  | EXOSC6 |  H. sapiens |   |  EAP4, MTR3, Mtr3p, hMtr3p, p11 |  28.2 |  5 |  
  | THOC6 |  H. sapiens |  TREX |  MGC2655, WDR58, fSAP35 |  37.5 |  5 |  
  | EXOSC10 |  H. sapiens |  exosome |  PM-Scl, PM/Scl-100, PMSCL, PMSCL2, RRP6 |  100.8 |  5 |  
  | C17orf85 |  H. sapiens |   |  ELG, FLJ32162, HSA277841 |  70.6 |  5 |  
  | LSM5 |  H. sapiens |  LSm |  FLJ12710, YER146W |  9.9 |  5 |  
  | DDX3X |  H. sapiens |  pre-mRNA/mRNA binding proteins |  DBX, DDX14, DDX3, HLP2 |  73.2 |  5 |  
  | RNPS1 |  H. sapiens |  EJC/mRNP |  E5.1, MGC117332 |  34.2 |  4 |  
  | C16orf80 |  H. sapiens |  Occasionally detected in Bact complex |  EVORF, GTL3, fSAP23 |  22.8 |  4 |  
  | HNRNPD |  H. sapiens |  hnRNP |  AUF1, AUF1A, HNRPD, P37, hnRNPD0 |  38.4 |  4 |  
  | EXOSC3 |  H. sapiens |  exosome |  CGI-102, MGC15120, MGC723, RP11-3J10.8, RRP40 |  29.6 |  4 |  
  | THOC1 |  H. sapiens |  TREX |  HPR1, P84, P84N5 |  75.7 |  4 |  
  | BCLAF1 |  H. sapiens |   |  BTF, KIAA0164, bK211L9.1 |  106.1 |  4 |  
  | EIF3A |  H. sapiens |  translation-related |  EIF3, EIF3S10, KIAA0139, P167, TIF32 |  166.6 |  3 |  
  | HNRNPU |  H. sapiens |  hnRNP |  HNRPU, SAF-A, U21.1, hnRNP U |  90.6 |  3 |  
  | FLG2 |  H. sapiens |   |  IFPS |  248.1 |  3 |  
  | RBM25 |  H. sapiens |  Recruited at A complex |  MGC105088, MGC117168, NET52, RED120, RNPC7 |  100.2 |  3 |  
  | ELAVL1 |  H. sapiens |  alternative splicing factor |  ELAV1, HUR, Hua, MelG |  36.1 |  3 |  
  | SNRPC |  H. sapiens |  U1 snRNP |  FLJ20302, U1C, Yhc1 |  17.4 |  3 |  
  | PNN |  H. sapiens |  EJC/mRNP |  DRS, DRSP, SDK3, memA |  81.6 |  3 |  
  | TRA2A |  H. sapiens |  SR protein |  AWMS1, HSU53209 |  32.7 |  3 |  
  | ERH |  H. sapiens |  misc. proteins found irregularly with spliceosomes |  DROER, FLJ27340 |  12.3 |  2 |  
  | RBBP6 |  H. sapiens |   |  DKFZp686P0638, DKFZp761B2423, MY038, P2P-R, PACT |  201.6 |  2 |  
  | PRPF40A |  H. sapiens |  Recruited at A complex |  FBP-11, FBP11, FLAF1, FLJ20585, FNBP3 |  108.8 |  2 |  
  | LSM3 |  H. sapiens |  LSm |  SMX4, USS2, YLR438C |  11.8 |  2 |  
  | EIF3L |  H. sapiens |  translation-related |  EIF3EIP, EIF3S11, EIF3S6IP, HSPC021, HSPC025 |  66.7 |  2 |  
  | PUF60 |  H. sapiens |  17S U2 snRNP associated |  FIR, FLJ31379, RoBPI, SIAHBP1 |  59.9 |  1 |