| Keratin-associated protein 15-1 | KRTAP15-1 KAP15.1 | Q3LI76 | 1 |
| Keratin-associated protein 19-2 | KRTAP19-2 KAP19.2 | Q3LHN2 | 1 |
| Keratin-associated protein 19-5 | KRTAP19-5 KAP19.5 | Q3LI72 | 1 |
| Keratin-associated protein 19-6 | KRTAP19-6 KAP19.6 | Q3LI70 | 1 |
| Keratin-associated protein 21-1 | KRTAP21-1 KAP21.1 | Q3LI58 | 1 |
| Keratin-associated protein 21-2 | KRTAP21-2 KAP21.2 | Q3LI59 | 1 |
| Keratocan (KTN) (Keratan sulfate proteoglycan keratocan) | KERA SLRR2B | O60938 | 1 |
| KIAA1608 protein (Fragment) | KIAA1608 | Q9HCG4 | 1 |
| KIAA1632 protein (Fragment) | KIAA1632 | Q9BTI0 | 1 |
| Kidney-associated antigen 1 (RU2 antisense gene protein) | KAAG1 RU2AS | Q9UBP8 | 1 |
| KIF3C variant protein (Kinesin family member 3C) (Kinesin family member 3C, isoform CRA_b) | KIF3C hCG_21381 | A2RU78 | 1 |
| Killer cell immunoglobulin-like receptor 2DL1 (CD158 antigen-like family member A) (MHC class I NK cell receptor) (Natural killer-associated transcript 1) (NKAT-1) (p58 natural killer cell receptor clones CL-42/47.11) (p58 NK receptor CL-42/47.11) (p58.1 MHC class-I-specific NK receptor) (CD antigen CD158a) | KIR2DL1 CD158A NKAT1 | P43626 | 1 |
| Killer cell immunoglobulin-like receptor 2DL5A (CD antigen CD158f1) | KIR2DL5A CD158F CD158F1 KIR2DL5 | Q8N109 | 1 |
| Killer cell immunoglobulin-like receptor 2DS3 (MHC class I NK cell receptor) (Natural killer-associated transcript 7) (NKAT-7) | KIR2DS3 NKAT7 | Q14952 | 1 |
| Killer cell immunoglobulin-like receptor 3DL1 (CD158 antigen-like family member E) (HLA-BW4-specific inhibitory NK cell receptor) (MHC class I NK cell receptor) (Natural killer-associated transcript 3) (NKAT-3) (p70 natural killer cell receptor clones CL-2/CL-11) (p70 NK receptor CL-2/CL-11) (CD antigen CD158e) | KIR3DL1 CD158E NKAT3 NKB1 | P43629 | 1 |
| Killer cell immunoglobulin-like receptor 3DL3 | KIR3DL3 | A0A0B4J1R5 | 1 |
| Killer cell immunoglobulin-like receptor KIR2DLX | KIR2DLX | Q8NHK4 | 1 |
| Killer cell lectin-like receptor subfamily D isoform C (Killer cell lectin-like receptor subfamily D, member 1, isoform CRA_a) (cDNA FLJ75697, highly similar to Homo sapiens killer cell lectin-like receptor subfamily D, member 1 (KLRD1), transcript variant 1, mRNA) | KLRD1 hCG_37262 | Q53ZY6 | 1 |
| Killer cell lectin-like receptor subfamily G member 2 (C-type lectin domain family 15 member B) | KLRG2 CLEC15B | A4D1S0 | 1 |
| Kinase suppressor of Ras 1 | KSR1 | H7BYU0 | 1 |
| Kinase suppressor of Ras 1 | KSR1 KSR | Q8IVT5 | 1 |
| Kinesin family member 12, isoform CRA_c (Kinesin-like protein KIF12) | KIF12 hCG_32518 | B1ALC3 | 1 |
| Kinesin heavy chain isoform 5A (Kinesin heavy chain neuron-specific 1) (Neuronal kinesin heavy chain) (NKHC) | KIF5A NKHC1 | Q12840 | 1 |
| Kinesin-like protein KIF11 (Kinesin-like protein 1) (Kinesin-like spindle protein HKSP) (Kinesin-related motor protein Eg5) (Thyroid receptor-interacting protein 5) (TR-interacting protein 5) (TRIP-5) | KIF11 EG5 KNSL1 TRIP5 | P52732 | 1 |
| Kinesin-like protein KIF16B (Sorting nexin-23) | KIF16B C20orf23 KIAA1590 SNX23 | Q96L93 | 1 |
| Kinesin-like protein KIF19 | KIF19 | Q2TAC6 | 1 |
| Kinesin-like protein KIF1A (Fragment) | KIF1A | G1UI30 | 1 |
| Kinesin-like protein KIF27 | KIF27 | Q86VH2 | 1 |
| Kinesin-like protein KIF2A (Kinesin-2) (hK2) | KIF2A KIF2 KNS2 | O00139 | 1 |
| Kinesin-like protein KIF3C | KIF3C | O14782 | 1 |
| Kinesin-like protein KIF7 | KIF7 UNQ340/PRO539 | Q2M1P5 | 1 |
| Kinesin-like protein KIFC2 | KIFC2 | Q96AC6 | 1 |
| Kinetochore protein NDC80 homolog (Highly expressed in cancer protein) (Kinetochore protein Hec1) (HsHec1) (Kinetochore-associated protein 2) (Retinoblastoma-associated protein HEC) | NDC80 HEC HEC1 KNTC2 | O14777 | 1 |
| Kinetochore protein Nuf2 (hNuf2) (hNuf2R) (hsNuf2) (Cell division cycle-associated protein 1) | NUF2 CDCA1 NUF2R | Q9BZD4 | 1 |
| Kinetochore protein Spc24 (hSpc24) | SPC24 SPBC24 | Q8NBT2 | 1 |
| KIR2DS2 | KIR2DS2 | K7R1S5 | 1 |
| Kita-kyushu lung cancer antigen 1 (KK-LC-1) (Cancer/testis antigen 83) (CT83) | KKLC1 CXorf61 | Q5H943 | 1 |
| KRAB domain-containing protein 4 (KRAB box domain-containing protein 4) | KRBOX4 ZNF673 | Q5JUW0 | 1 |
| Krueppel-like factor 7 (Ubiquitous krueppel-like factor) | KLF7 UKLF | O75840 | 1 |
| Krueppel-related zinc finger protein 1 (Protein HKR1) (Zinc finger protein 875) | HKR1 ZNF875 | P10072 | 1 |
| Kunitz-type protease inhibitor 1 (Hepatocyte growth factor activator inhibitor type 1) (HAI-1) | SPINT1 HAI1 UNQ223/PRO256 | O43278 | 1 |
| Kv channel-interacting protein 1 (KChIP1) (A-type potassium channel modulatory protein 1) (Potassium channel-interacting protein 1) (Vesicle APC-binding protein) | KCNIP1 KCHIP1 VABP | Q9NZI2 | 1 |
| Kv channel-interacting protein 2 (KChIP2) (A-type potassium channel modulatory protein 2) (Cardiac voltage-gated potassium channel modulatory subunit) (Potassium channel-interacting protein 2) | KCNIP2 KCHIP2 | Q9NS61 | 1 |
| Kynurenine 3-monooxygenase (EC 1.14.13.9) (Kynurenine 3-hydroxylase) | KMO | O15229 | 1 |
| L-lactate dehydrogenase A-like 6B (EC 1.1.1.27) | LDHAL6B LDHAL6 LDHL | Q9BYZ2 | 1 |
| L-lactate dehydrogenase C chain (LDH-C) (EC 1.1.1.27) (Cancer/testis antigen 32) (CT32) (LDH testis subunit) (LDH-X) | LDHC LDH3 LDHX | P07864 | 1 |
| L-serine dehydratase/L-threonine deaminase (SDH) (EC 4.3.1.17) (L-serine deaminase) (L-threonine dehydratase) (TDH) (EC 4.3.1.19) | SDS SDH | P20132 | 1 |
| L-seryl-tRNA(Sec) kinase (EC 2.7.1.164) (O-phosphoseryl-tRNA(Sec) kinase) | PSTK C10orf89 | Q8IV42 | 1 |
| La ribonucleoprotein domain family, member 2, isoform CRA_c (La-related protein 1B) | LARP1B LARP2 hCG_2026454 | G3XAJ5 | 1 |
| Lactation elevated protein 1 (Protein AFG1 homolog) | LACE1 AFG1 | Q8WV93 | 1 |
| Lactosylceramide 4-alpha-galactosyltransferase (EC 2.4.1.228) (Alpha-1,4-N-acetylglucosaminyltransferase) (Alpha-1,4-galactosyltransferase) (Alpha4Gal-T1) (CD77 synthase) (Globotriaosylceramide synthase) (Gb3 synthase) (P1/Pk synthase) (UDP-galactose:beta-D-galactosyl-beta1-R 4-alpha-D-galactosyltransferase) | A4GALT A14GALT A4GALT1 | Q9NPC4 | 1 |
| Lactotransferrin (Lactoferrin) (EC 3.4.21.-) (Growth-inhibiting protein 12) (Talalactoferrin) [Cleaved into: Lactoferricin-H (Lfcin-H); Kaliocin-1; Lactoferroxin-A; Lactoferroxin-B; Lactoferroxin-C] | LTF GIG12 LF | P02788 | 1 |
| Laforin (EC 3.1.3.16) (EC 3.1.3.48) (Lafora PTPase) (LAFPTPase) | EPM2A | O95278 | 1 |
| LAMC1 protein | LAMC1 | Q6NVY8 | 1 |
| Laminin subunit alpha-2 (Laminin M chain) (Laminin-12 subunit alpha) (Laminin-2 subunit alpha) (Laminin-4 subunit alpha) (Merosin heavy chain) | LAMA2 LAMM | P24043 | 1 |
| Laminin subunit alpha-3 (Epiligrin 170 kDa subunit) (E170) (Epiligrin subunit alpha) (Kalinin subunit alpha) (Laminin-5 subunit alpha) (Laminin-6 subunit alpha) (Laminin-7 subunit alpha) (Nicein subunit alpha) | LAMA3 LAMNA | Q16787 | 1 |
| Laminin subunit alpha-4 (Laminin-14 subunit alpha) (Laminin-8 subunit alpha) (Laminin-9 subunit alpha) | LAMA4 | Q16363 | 1 |
| Laminin subunit beta-2 (Laminin B1s chain) (Laminin-11 subunit beta) (Laminin-14 subunit beta) (Laminin-15 subunit beta) (Laminin-3 subunit beta) (Laminin-4 subunit beta) (Laminin-7 subunit beta) (Laminin-9 subunit beta) (S-laminin subunit beta) (S-LAM beta) | LAMB2 LAMS | P55268 | 1 |
| Laminin subunit beta-3 (Epiligrin subunit bata) (Kalinin B1 chain) (Kalinin subunit beta) (Laminin B1k chain) (Laminin-5 subunit beta) (Nicein subunit beta) | LAMB3 LAMNB1 | Q13751 | 1 |
| Laminin subunit gamma-2 (Cell-scattering factor 140 kDa subunit) (CSF 140 kDa subunit) (Epiligrin subunit gamma) (Kalinin subunit gamma) (Kalinin/nicein/epiligrin 100 kDa subunit) (Ladsin 140 kDa subunit) (Laminin B2t chain) (Laminin-5 subunit gamma) (Large adhesive scatter factor 140 kDa subunit) (Nicein subunit gamma) | LAMC2 LAMB2T LAMNB2 | Q13753 | 1 |
| LanC lantibiotic synthetase component C-like 1 (Bacterial), isoform CRA_a (Putative uncharacterized protein LANCL1) | LANCL1 hCG_16716 | Q53TN2 | 1 |
| LAPTM4A protein (Lysosomal protein transmembrane 4 alpha) (Lysosomal-associated protein transmembrane 4 alpha, isoform CRA_b) | LAPTM4A hCG_32086 | Q6IBP4 | 1 |
| Large neutral amino acids transporter small subunit 1 (4F2 light chain) (4F2 LC) (4F2LC) (CD98 light chain) (Integral membrane protein E16) (L-type amino acid transporter 1) (hLAT1) (Solute carrier family 7 member 5) (y+ system cationic amino acid transporter) | SLC7A5 CD98LC LAT1 MPE16 | Q01650 | 1 |
| Large neutral amino acids transporter small subunit 4 (L-type amino acid transporter 4) (Solute carrier family 43 member 2) | SLC43A2 LAT4 PP7664 | Q8N370 | 1 |
| Large subunit GTPase 1 homolog (hLsg1) (EC 3.6.1.-) | LSG1 | Q9H089 | 1 |
| Lariat debranching enzyme (EC 3.1.-.-) | DBR1 | Q9UK59 | 1 |
| Late cornified envelope protein 3C (Late envelope protein 15) (Small proline-rich-like epidermal differentiation complex protein 3A) | LCE3C LEP15 SPRL3A | Q5T5A8 | 1 |
| Late cornified envelope protein 4A (Late envelope protein 8) (Small proline-rich-like epidermal differentiation complex protein 4A) | LCE4A LEP8 SPRL4A | Q5TA78 | 1 |
| Late cornified envelope-like proline-rich protein 1 (Novel small proline-rich protein) | LELP1 | Q5T871 | 1 |
| Latrophilin-2 (Calcium-independent alpha-latrotoxin receptor 2) (CIRL-2) (Latrophilin homolog 1) (Lectomedin-1) | LPHN2 KIAA0786 LEC1 LPHH1 | O95490 | 1 |
| Latrophilin-3 (Calcium-independent alpha-latrotoxin receptor 3) (CIRL-3) (Lectomedin-3) | LPHN3 KIAA0768 LEC3 | Q9HAR2 | 1 |
| Layilin | LAYN UNQ208/PRO234 | Q6UX15 | 1 |
| LDLR chaperone MESD (Mesoderm development candidate 2) (Mesoderm development protein) (Renal carcinoma antigen NY-REN-61) | MESDC2 KIAA0081 MESD UNQ1911/PRO4369 | Q14696 | 1 |
| Left-right determination factor 1 (Left-right determination factor B) (Protein lefty-1) (Protein lefty-B) | LEFTY1 LEFTB LEFTYB UNQ278/PRO317 | O75610 | 1 |
| Lens fiber membrane intrinsic protein (MP18) (MP19) (MP20) | LIM2 | P55344 | 1 |
| Leptin (Obese protein) (Obesity factor) | LEP OB OBS | P41159 | 1 |
| Leptin receptor (LEP-R) (HuB219) (OB receptor) (OB-R) (CD antigen CD295) | LEPR DB OBR | P48357 | 1 |
| Leucine-rich repeat and calponin homology domain-containing protein 1 (Calponin homology domain-containing protein 1) (Neuronal protein 81) (NP81) | LRCH1 CHDC1 KIAA1016 | Q9Y2L9 | 1 |
| Leucine-rich repeat and calponin homology domain-containing protein 2 | LRCH2 KIAA1495 | Q5VUJ6 | 1 |
| Leucine-rich repeat and fibronectin type-III domain-containing protein 3 (Synaptic adhesion-like molecule 4) | LRFN3 SALM4 UNQ5865/PRO34192 | Q9BTN0 | 1 |
| Leucine-rich repeat and immunoglobulin-like domain-containing nogo receptor-interacting protein 2 (Leucine-rich repeat neuronal protein 3) (Leucine-rich repeat neuronal protein 6C) | LINGO2 LERN3 LRRN6C UNQ9234/PRO31993 | Q7L985 | 1 |
| Leucine-rich repeat and immunoglobulin-like domain-containing nogo receptor-interacting protein 3 (Leucine-rich repeat neuronal protein 2) (Leucine-rich repeat neuronal protein 6B) | LINGO3 LERN2 LRRN6B | P0C6S8 | 1 |
| Leucine-rich repeat and transmembrane domain-containing protein 2 | LRTM2 | Q8N967 | 1 |
| Leucine-rich repeat kinase 2 | LRRK2 | Q17RV3 | 1 |
| Leucine-rich repeat LGI family member 4 (LGI1-like protein 3) (Leucine-rich glioma-inactivated protein 4) | LGI4 LGIL3 UNQ6515/PRO21485 | Q8N135 | 1 |
| Leucine-rich repeat neuronal protein 1 (Neuronal leucine-rich repeat protein 1) (NLRR-1) | LRRN1 KIAA1497 Nbla10449 UNQ693/PRO1338 | Q6UXK5 | 1 |
| Leucine-rich repeat neuronal protein 3 (Neuronal leucine-rich repeat protein 3) (NLRR-3) | LRRN3 Nbla10363 UNQ194/PRO220 | Q9H3W5 | 1 |
| Leucine-rich repeat, immunoglobulin-like domain and transmembrane domain-containing protein 2 (Leucine-rich repeat-containing protein 22) | LRIT2 LRRC22 | A6NDA9 | 1 |
| Leucine-rich repeat-containing G-protein coupled receptor 5 (G-protein coupled receptor 49) (G-protein coupled receptor 67) (G-protein coupled receptor HG38) | LGR5 GPR49 GPR67 | O75473 | 1 |
| Leucine-rich repeat-containing protein 17 (p37NB) | LRRC17 P37NB UNQ3076/PRO9909 | Q8N6Y2 | 1 |
| Leucine-rich repeat-containing protein 18 | LRRC18 UNQ9338/PRO34010 | Q8N456 | 1 |
| Leucine-rich repeat-containing protein 19 | LRRC19 | Q9H756 | 1 |
| Leucine-rich repeat-containing protein 2 | LRRC2 | Q9BYS8 | 1 |
| Leucine-rich repeat-containing protein 31 | LRRC31 UNQ9367/PRO34156 | Q6UY01 | 1 |
| Leucine-rich repeat-containing protein 34 | LRRC34 | Q8IZ02 | 1 |
| Leucine-rich repeat-containing protein 36 (ROR gamma-binding protein 70) | LRRC36 RORBP70 | Q1X8D7 | 1 |
| Leucine-rich repeat-containing protein 39 (Densin hlg) | LRRC39 UNQ6500/PRO21368 | Q96DD0 | 1 |
| Leucine-rich repeat-containing protein 3B (Leucine-rich repeat protein LRP15) | LRRC3B LRP15 UNQ195/PRO221 | Q96PB8 | 1 |
| Leucine-rich repeat-containing protein 7 (Densin-180) (Densin) (Protein LAP1) | LRRC7 KIAA1365 LAP1 | Q96NW7 | 1 |
| Leucine-rich repeat-containing protein 71 | LRRC71 C1orf92 | Q8N4P6 | 1 |