Nutritive fragments, proteins and methods

1. A formulation comprising a recombinant nutritive protein, wherein the nutritive protein has an aqueous solubility at pH 7 of at least 50 g/L, and the nutritive protein is present in an amount of at least about 1 g, and wherein the nutritive protein comprises a polypeptide sequence having an amino acid distribution characterized by a Euclidean distance of less than 0.117 from a target amino acid distribution of 60% essential amino acids and 40% non-essential amino acids.

2. The formulation of claim 1 , comprising the nutritive protein or a plurality of nutritive proteins in an amount less than 58 grams of protein per 70 kg of body weight that is sufficient to provide minimum amino acid intake values when consumed in one or more doses by a human subject at least once daily, and wherein the polypeptide sequence is essential amino acid complete.

3. The formulation of claim 1 , wherein the nutritive protein accounts for at least 5% of a protein intake of 1.5 g/kg of body weight per day, and/or wherein the nutritive protein accounts for at least 5% of the subject's total caloric intake per day.

4. The formulation of claim 1 , wherein the nutritive protein is characterized by a simulated gastric digestion half-life of less than 60 minutes.

5. The formulation of claim 1 , wherein the polypeptide sequence has an amino acid distribution characterized by a Euclidean distance of less than 0.0716 from a target amino acid distribution of 60% essential amino acids and 40% non-essential amino acids.

6. The formulation of claim 1 , wherein the polypeptide sequence is characterized by a weight ratio of essential amino acids to total amino acids present in the polypeptide sequence that is higher than the weight ratio of essential amino acids to total amino acids present in naturally-occurring reference protein selected from the group consisting of SEQ ID NOs 574, 585, 619, 621, 623, 625, 627, 631, 633, 635, 646, 648, 655, 789, 791, 822, 1010, or 1588, or from a reference protein fragment selected from SEQ ID NOs 575, 586, 620, 622, 624, 626, 628, 632, 634, 636, 647, 649, 656, 790, 792, 823, 1011, or 1589.

7. The formulation of claim 1 , wherein the polypeptide sequence comprises a histidine target percentage of about 1.5% to about 5.4%, an isoleucine target percentage of about 3% to about 10.8%, a leucine target percentage of about 5.9% to about 21.3%, a lysine target percentage of about 4.5% to about 16.2%, a sulfur-containing amino acid target percentage of about 2.2% to about 7.9%, an aromatic amino acid target percentage of about 3.8% to about 13.7%, a threonine target percentage of about 2.3% to about 8.3%, a tryptophan target percentage of about 0.6% to about 2.2%, a valine target percentage of about 3.9% to about 14.1%, or a combination thereof.

8. The formulation of claim 1 , wherein the polypeptide sequence comprises an alanine target percentage of about 1.90% to about 9.49%, an arginine target percentage of about 0.37% to about 1.87%, an asparagine target percentage of about 0.6% to about 3.82%, an aspartic acid target percentage of about 1.45% to about 7.27%, a glutamine-containing amino acid target percentage of about 1.15% to about 5.74%, a glutamic acid target percentage of about 1.77% to about 8.87%, a glycine target percentage of about 0.74% to about 3.68%, a proline target percentage of about 0.82% to about 4.12%, a serine target percentage of about 1.03% to about 5.14%, or a combination thereof.

9. The formulation of claim 1 , wherein the nutritive protein is produced by a microorganism.

10. The formulation of claim 1 , wherein the polypeptide sequence is selected from:

A) an amino acid sequence comprising the amino acid sequence of a protein listed in list 1;

B) an amino acid sequence comprising a modified derivative of the amino acid sequence of a protein listed in list 1;

C) an amino acid sequence comprising a mutein of the amino acid sequence of a protein listed in list 1;

D) an amino acid sequence comprising a fragment of at least 20 amino acids of the amino acid sequence of a protein listed in list 1;

E) an amino acid sequence comprising a modified derivative of a fragment of at least 20 amino acids of the amino acid sequence of a protein listed in list 1;

F) an amino acid sequence comprising a mutein of a fragment of at least 20 amino acids of the amino acid sequence of a protein listed in list 1;

G) an amino acid sequence comprising the amino acid sequence of a fragment listed in list 2;

H) an amino acid sequence comprising a modified derivative of the amino acid sequence of a fragment listed in list 2; and

I) an amino acid sequence comprising a mutein of the amino acid sequence of a fragment listed in list 2,

wherein list 1 consists of SEQ ID NOs 30, 114, 136, 221, 224, 227, 232-233, 254-259, 266, 272, 338, 356, 361-362, 365, 407, 412-413, 428, 451, 467, 473, 477-479, 524, 532, 537, 544, 565, 577, 581, 602, 607-608, 639, 670, 683, 703, 711, 765, 776, 814, 844, 928, 935, 966, 1004, 1017, 1046, 1072, 1076, 1095, 1107, 1117, 1123, 1143, 1176, 1184, 1217, 1221, 1224, 1262, 1305, 1362, 1379-1380, 1391, 1420, 1440, 1445-1446, 1453, 1470, 1487, 1522, 1639, 1678, 1705-1706, 1739-1740, 1747, 1753, 1763, 1771, 1834, 1839, 1843, 1871, 1890, 1893, 1914, 1997, 2009, 2103, 2112, 2122-2123, 2149, 2163, 2180, 2183, 2207-2208, 2215, 2218, 2234, 2242, 2244, 2246-2247, 2251, 2309-2310, 2313, 2319, 2324, 2330, 2338-2339, 2343, 2475, 2485, 2495-2496, 2518, 2522, 2527, 2530, 2690, 2695, 2701, 2714, 2796, 2798, 2884, 2898, 3019, 3097, 3100, 3107, 3161, 3294, 3297, 3306, 3315, 3357, 3366, 3403, 3453, 3461, 3507, 3539-3540, 3544, 3607, 3646, 3657, 3665, 3786, 3797, 3812-3813, 3815, 3830, 3838, 3872, 3920, 3923, 3929, 3942, 3947, 3959-3960, 3986, 3998-4001, 4003-4004, 4022, 4105, 4119, 4130, 4154-4155, 4161, 4170, 4176, 4192, 4197-4198, 4225, 4233, 4309, 4313-4314, 4320-4321, 4386, and 4393-4394, and

wherein list 2 consists of SEQ ID NOs 3, 31, 45, 54, 62, 87-89, 120, 185, 194-195, 222-223, 251, 263, 267-269, 274, 324, 328, 342, 344, 357, 415, 421, 469, 475, 481, 484, 486, 494, 496, 534, 538, 666, 709, 762, 798, 852, 866-867, 985, 997, 1005, 1054, 1071, 1110-1111, 1119, 1159, 1166, 1182, 1185, 1187, 1192, 1197-1198, 1203-1204, 1207, 1213, 1229-1230, 1234, 1274-1275, 1317, 1323, 1325, 1335, 1366, 1421, 1433, 1441, 1468, 1625, 1628, 1688-1689, 1773, 1776, 1781, 1814, 1822, 1827, 1832, 1837, 1867, 1882, 1909, 1919, 1944, 1953, 1959, 1995, 2003, 2016-2017, 2062-2063, 2065, 2079, 2101, 2108, 2110-2111, 2118, 2131, 2156, 2160, 2171, 2175, 2185, 2202, 2235, 2318, 2466-2468, 2525, 2565, 2693, 2697, 2699, 2702, 2715, 2799, 2910, 2978-2979, 3101, 3163, 3173, 3299-3300, 3302, 3351, 3361, 3370, 3372, 3445, 3450, 3454, 3513-3514, 3566, 3569, 3589-3591, 3594-3595, 3605-3606, 3677, 3788, 3792-3793, 3806-3807, 3816, 3825, 3835-3836, 3844, 3855, 3867, 3874, 3882, 3884, 3911, 3919, 3925-3926, 3955-3956, 3962, 3967-3968, 3974-3976, 3981, 3983-3984, 4011-4012, 4024-4026, 4104, 4107, 4109, 4132, 4150, 4162-4163, 4173-4174, 4178-4179, 4189-4190, 4194, 4199-4200, 4212, 4229, 4238, 4334, 4342-4343, 4388, and 4401.

11. The formulation of claim 1 , wherein the nutritive protein exhibits no detectable aggregation at 95° C.

12. The formulation of claim 1 , wherein the polypeptide sequence does not comprise N-linked glycosylation or O-linked glycosylation.